Automatic Cross-Polarization (ACP) Server Installation, Operation, And Troubleshooting Guide Rev.C

1032039-0001Revision CMarch 31, 2006

HN System.

Automatic Cross-Polarization (ACP) Server Installation, Operation, and Troubleshooting Guide

Copyright © 2003, 2005, 2006 Hughes Network Systems, LLC

All rights reserved. This publication and its contents are proprietary to Hughes Network Systems, LLC. No part of this publication may be reproduced in any form or by any means without the written permission of Hughes Network Systems, LLC, 11717 Exploration Lane, Germantown, Maryland 20876.

Hughes Network Systems, LLC has made every effort to ensure the correctness and completeness of the material in this document. Hughes Network Systems, LLC shall not be liable for errors contained herein. The information in this document is subject to change without notice. Hughes Network Systems, LLC makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.

Trademarks

Hughes and Hughes Network Systems are trademarks of Hughes Network Systems, LLC. All other trademarks are the property of their respective owners.

Important safety informationFor your safety and protection, read this entire manual before you attempt to install the ACP Server. In particular, read this safety section carefully. Keep this safety information where you can refer to it if necessary.

Types of warnings used in this manual

This section introduces the various types of warnings used in this manual to alert you to possible safety hazards.

DANGER

Indicates an imminently hazardous situation, which, if not avoided, will result in death or serious injury.

WARNING

Indicates a potentially hazardous situation, which, if not avoided, could result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation, which, if not avoided, may result in minor or moderate injury.

CAUTIONIndicates a situation or practice that might result in property damage.

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• Important safety information 1032039-0001 Revision C

Contents

Important safety information . . . . . . . . . . . . . . . . . . . . . iiiTypes of warnings used in this manual . . . . . . . . . . . . . . . . . . . iiiAbout this document . . . . . . . . . . . . . . . . . . . . . . . . . . . .xvScope and audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xvOrganization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xvConventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviRelated publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviRevision record. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xvii

Chapter 1Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1ACP subsystem interdependences . . . . . . . . . . . . . . . . . . . . . . . .3Major ACP features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Regional ACP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Frequency auto-centering . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Extended Ku-band frequency support . . . . . . . . . . . . . . . . .8ACP Server subsystem capacity and limitations . . . . . . . . . . .8

Chapter 2Starting the installation . . . . . . . . . . . . . . . . . . . . . . . . . . .9Before you begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9Configuring the hardware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12Installing the operating system. . . . . . . . . . . . . . . . . . . . . . . . . .15

Chapter 3ACP rack installation . . . . . . . . . . . . . . . . . . . . . . . . . . .17Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17Inspecting rack equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17Tools and materials required for installation . . . . . . . . . . . . . . .18Unpacking the rack. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18Preparing the raised floor for rack mounting . . . . . . . . . . . . . . .20

Mounting the rack on a raised floor (non-earthquake). . . . . .25Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Mounting the rack on a raised floor (earthquake) . . . . . . . . .30Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30Install pedestal assemblies . . . . . . . . . . . . . . . . . . . . . . . . .31Secure pedestal assemblies to concrete floor . . . . . . . . . . .34

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Adjust pedestal assemblies . . . . . . . . . . . . . . . . . . . . . . . . .35Mounting the rack onto the raised floor panel . . . . . . . . . .37

Installing bushings and bushing plugs . . . . . . . . . . . . . . . . . . . .39Power and ground connections. . . . . . . . . . . . . . . . . . . . . . . . . .40

Ground connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41Rear rack door installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

Grounding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

Chapter 4Installing and configuring software . . . . . . . . . . . . . . . .43Before you begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43Installation procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

Installing the GPIB driver . . . . . . . . . . . . . . . . . . . . . . . . . . .45Configuring the spectrum analyzer GPIB address . . . . . . . . .57Setting GPIB address on a spectrum analyzer . . . . . . . . . . . .64

Installing the ACP software . . . . . . . . . . . . . . . . . . . . . . . . . . . .65Enabling the Timing Unit for ACP operation . . . . . . . . . . . . . .84Configuring the calibration remote terminal . . . . . . . . . . . . . . .88Transmitting CW signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90

Chapter 5Setting up the ACP . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93Initial ACP set up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93NOC requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94Optimizing calibration remote antenna pointing . . . . . . . . . . . .96Measuring calibration values . . . . . . . . . . . . . . . . . . . . . . . . . . .99Calculating ACP_SYS_CopolOffset and ACP_SYS_XOffset 100Modify ACP Server registries . . . . . . . . . . . . . . . . . . . . . . . . .102

Chapter 6Using the ACP GUI . . . . . . . . . . . . . . . . . . . . . . . . . . . .103Startup procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103Shutdown procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103Using the ACPGUI program . . . . . . . . . . . . . . . . . . . . . . . . . .104

Using the General tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104IRU Control tab commands . . . . . . . . . . . . . . . . . . . . . . .105Redundancy tab commands . . . . . . . . . . . . . . . . . . . . . . .105

Using the Configure tab . . . . . . . . . . . . . . . . . . . . . . . . . . . .106IP address configuration . . . . . . . . . . . . . . . . . . . . . . . . . .106

Configuring ACP Server for manual cross-pol . . . . . . . . . . . .106Performing a manual cross-pol check . . . . . . . . . . . . . . . . . . .107

Chapter 7Monitoring the system and statistics . . . . . . . . . . . . . .109ACP result logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109

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ACP statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110ACP console output message . . . . . . . . . . . . . . . . . . . . . . . . . .112System monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115

Regional ACP Server statistics. . . . . . . . . . . . . . . . . . . . . . .117Frequency auto recentering statistics . . . . . . . . . . . . . . . . . .118ACP trace level configuration . . . . . . . . . . . . . . . . . . . . . . .118System management trace level configuration. . . . . . . . . . .119

Chapter 8Using a remote GUI . . . . . . . . . . . . . . . . . . . . . . . . . . . .121Remote ACPGUI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121

Management parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . .121Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121RemoteGUI key parameters . . . . . . . . . . . . . . . . . . . . . . . . .121Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122

Chapter 9Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125Using a health monitor for ACP testing . . . . . . . . . . . . . . . . . .125

Verifying communication. . . . . . . . . . . . . . . . . . . . . . . . . . .127Timing problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128

Appendix AList of ACP GUI and registry entries . . . . . . . . . . . . .129ACP key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .129

ACPPAIR key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .134PAIRK key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135

GPIB key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136Group1 key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137Sa1 key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .138

GUI key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .138SOCKSVR key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .139SYSMGMT key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .139

TimingParms key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140

Appendix BVirus protection recommendations . . . . . . . . . . . . . . .141Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .141Platform recommendations. . . . . . . . . . . . . . . . . . . . . . . . . . . .142Other recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142Helpful web sites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .143

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Appendix CConfiguring ACP timing . . . . . . . . . . . . . . . . . . . . . . . .145Verifying cros-pol interference . . . . . . . . . . . . . . . . . . . . . . . .145Configuring the FrameIDAdjustment parameter . . . . . . . . . . .145Configuring the DelayFrameNumber parameter . . . . . . . . . . .146Acronyms and abbreviations . . . . . . . . . . . . . . . . . . . .149Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .151

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Chapter 11. ACP test process flow diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22. ACP subsystem relationship . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43. Regional ACP configuration file format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Chapter 24. Basic ACP Server equipment rack front view . . . . . . . . . . . . . . . . . . . . . . . . . .125. Agilent ESA-E series spectrum analyzer back panel . . . . . . . . . . . . . . . . . . . . .136. Rear panel connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Chapter 37. Moving the rack shipping crate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .198. Rack floor mounting dimensions (rear alignment, standard) . . . . . . . . . . . . . . .219. Rack floor mounting dimensions (rear alignment, metric). . . . . . . . . . . . . . . . .22

10. Rack floor mounting dimensions (front alignment, standard) . . . . . . . . . . . . . .2311. Rack floor mounting dimensions (front alignment, metric) . . . . . . . . . . . . . . . .2412. Double channel assembly (non-earthquake). . . . . . . . . . . . . . . . . . . . . . . . . . . .2613. Rack leveling feet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2614. Unistrut, raised floor, and rack positioning (non-earthquake) . . . . . . . . . . . . . .2715. Slotted mounting hole locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2816. Leveling the ACP rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2917. Double channel assembly (earthquake mounting kit) . . . . . . . . . . . . . . . . . . . .3118. Unistrut and pedestal positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3219. Unistrut positioning (earthquake) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3320. Pedestal positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3421. Installing bolts and anchors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3522. Pedestal assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3623. Rack leveling feet adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3724. Aligning the rack with the raised floor and unistruts . . . . . . . . . . . . . . . . . . . . .3825. Bottom panel bushing installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3926. Top panel bushing installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

Chapter 427. Local Area Connection 2 Properties screen . . . . . . . . . . . . . . . . . . . . . . . . . . . .4428. NI-488.2 for Windows screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4529. Welcome screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4630. License Agreement screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

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31. Destination Folder screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4732. Select Installation Type screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4833. Start Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4934. Install Error pop-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4935. Installation Complete screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5036. Add GPIB Hardware Wizard screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5037. Connect Power and Ethernet cables screen . . . . . . . . . . . . . . . . . . . . . . . . . . . .5138. Power Ready LEDs screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5139. IP Address or Hostname screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5240. NI Ethernet Device Configuration screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5241. GPIB-ENET/100 Properties screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5342. GPIB-ENET/100 Properties pop-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5343. NI Ethernet Device Configuration - Configured screen . . . . . . . . . . . . . . . . . . .5444. Enter IP Address or Hostname screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5445. Security Alert - Driver Installation screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5546. Shutdown/Restart screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5547. NI-488.2 Getting Started Wizard screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5648. Troubleshooting Wizard Help screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5649. Troubleshooting Wizard screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5750. NI-488.2 Getting Started Wizard - Checked screen . . . . . . . . . . . . . . . . . . . . . .5751. GPIB Configuration - Edit Device Name screen . . . . . . . . . . . . . . . . . . . . . . . .5852. GPIB Configuration screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5953. User Preferences screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6054. Measurement & Automation Explorer screen . . . . . . . . . . . . . . . . . . . . . . . . . .6055. GPIB (GPIB-ENET/100) - Measurement & Automation Explorer screen . . . .6156. Measurement & Automation Explorer - Scan for Instruments screen . . . . . . . .6257. Measurement & Automation Explorer - Configuration screen . . . . . . . . . . . . .6358. Measurement & Automation Explorer - Instrument0 screen . . . . . . . . . . . . . . .6459. Hughes NOC Server Software Setup screen . . . . . . . . . . . . . . . . . . . . . . . . . . .6560. Installation Content screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6661. Choose Drive screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6662. Setup Type screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6763. Information pop-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6764. ACP Configuration - ID screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6865. ACP Configuration - Ports screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6966. ACP Configuration - Addresses screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7067. ACP Configuration - Server screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7168. ACP Configuration - Offset screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7269. Information - spectrum analyzer pop-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7370. ACP Pair Configuration screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7371. Information - ACP pairs pop-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

• Figures 1032039-0001 Revision C

72. ACP Pair Configuration - Group screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7473. Question pop-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7574. Information - ACP GPIB pop-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7575. ACP GPIB Configuration screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7676. Information - ACP GPIB group pop-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7677. ACP GPIB Configuration - spectrum analyzer screen . . . . . . . . . . . . . . . . . . . .7778. ACP GPIB Configuration - spectrum analyzer screen (cont.) . . . . . . . . . . . . . .7879. GPIB Configuration pop-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7880. ACP GPIB Configuration - GPIB group 1 screen . . . . . . . . . . . . . . . . . . . . . . .7981. Question - SA pop-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8082. Question - group pop-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8083. Information - Socksvr pop-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8084. ACP SOCHKSVR Configuration screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8185. Information - System Management pop-up . . . . . . . . . . . . . . . . . . . . . . . . . . . .8186. ACP Sysmgmt Configuration screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8287. ACP Sysmgmt Configuration - Queue screen . . . . . . . . . . . . . . . . . . . . . . . . . .8388. InstallShield Wizard Complete screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8489. Timing Unit Configuration and Statistics Viewer screen. . . . . . . . . . . . . . . . . .8591. Service Control screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8690. Services screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8692. DNCC available screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8793. Edit DWORD Value screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8994. DNCCGUI - setting Enableflag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9095. DNCCGUI - entering CenterFrq . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91

Chapter 596. ACP System test configuration diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9597. DNCC available - Endableflag screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9798. DNCC available - CenterFrq screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9899. Hughes ACP Offset screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101

Chapter 6100. Acpgui.exe icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103101. ACP GUI screen tabs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104102. IRU Control tab window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104103. URU Control tab screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105104. IP address configuration window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106105. ACPGUI_Local screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107

Chapter 7106. ACP Statistics screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110107. Detailed ACP statistics screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

• Figures 1032039-0001 Revision C xi

xii

108. ACP logging window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112109. Remote command results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113110. Example of a permanent log file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114111. ACPGUI server statistics screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115112. ACPPair Statistics screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116113. Trace level selection window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118114. Sysmgmt Trace selection window . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Chapter 8115. Switch ACP Server from ACPGUI . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122116. ACP Server selection dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Chapter 9117. Antenna Pointing (2) Properties screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126118. Antenna Location screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126119. Satellite Parameters screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127120. Receiver screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127

• Figures 1032039-0001 Revision C

Tables

Chapter 21. ACP Server installation data collection sheet. . . . . . . . . . . . . . . . . . . . . . . . . . .10

Chapter 32. Floor support kit for raised floors (Hughes 1026820-0014). . . . . . . . . . . . . . . .253. Floor support kit for raised floors (Hughes 1026820-0001/-0005) . . . . . . . . . .30

Chapter 44. Renaming LAN connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .445. ACP configuration - ID fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .686. ACP configuration - ports fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .697. ACP configuration - addresses fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .708. ACP configuration - server fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .719. ACP configuration - offsets fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

10. ACP pair configuration fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7311. ACP configuration - group fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7412. ACP GPIB configuration fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7613. ACP GPIB configuration - spectrum analyzer fields . . . . . . . . . . . . . . . . . . . . .7714. ACP GPIB configuration - spectrum analyzer fields . . . . . . . . . . . . . . . . . . . . .7815. ACP GPIB configuration - GPIB group 1 fields . . . . . . . . . . . . . . . . . . . . . . . .7916. ACP SOCHKSVR configuration fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8117. ACP sysmgmt configuration fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8218. ACP sysmgmt configuration - queue fields . . . . . . . . . . . . . . . . . . . . . . . . . . . .8319. Configuration values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88

Chapter 520. Measured ACP calibration levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10021. Measured ACP calibration frequencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10122. ACP Server registry entries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102

Chapter 6

Chapter 723. ACP record file parameter format description . . . . . . . . . . . . . . . . . . . 10924. ACP Server performance variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11525. ACPPair statistics description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11626. Regional ACP Server statistics description . . . . . . . . . . . . . . . . . . . . . . . . . . .11727. Frequency auto-recentering statistics descriptions . . . . . . . . . . . . . . . . . . . . . .118

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Chapter 928. Troubleshooting hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125

Appendix A29. ACP key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13030. ACPPAIR key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13431. PairK key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13532. GPIB key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13633. Group1 key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13734. Sa1 key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13835. GUI key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13836. SOCKSVR key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13937. SYSMGMT key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13938. TimingParms key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140

• Tables 1032039-0001 Revision C

About this document

Scope and audience This document provides information needed to install and operate the Hughes Automatic Cross-Polarization (ACP) Server equipment.

This manual is intended for Hughes Network Operations Center (NOC) installers, operators, and factory personnel responsible for assembling, installing, and operating NOC ACP Server software and hardware.

Organization This manual consists of these chapters and appendices:

About this manual

Chapter 1 – Introduction

Chapter 2 – Starting the installation

Chapter 3 – ACP rack installation

Chapter 4 – Installing and configuring software

Chapter 5 – Setting up the ACP

Chapter 6 – Using the ACP GUI

Chapter 7 – Monitoring the system and statistics

Chapter 8 – Using a remote GUI

Chapter 9 – Troubleshooting

Appendix A – List of ACP GUI and registry entries

Appendix B – Virus protection recommendations

Glossary

Index

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xvi

Conventions These typographical conventions are used in this manual to help clarify instructions:

Related publications • Hughes Network Operations Center (NOC) System Overview, 1035929-0001

• IF Subsystem-Turbo Code (IFSS-TC) Installation Operation and Maintenance, 1032941-0001

• Timing Unit Subsystem Installation and Operation Guide, 1032044-0001

• ACP Installation and Operations Manual, 1032039-0001 • Special Services Installation and Operation Guide,

1032030-0001 • IPGW Installation and Operations Manual, 1032029-0001 • Hughes VPN Accelerator Server Installation and

Operations Manual, 1035590-0001 • Hughes Vision UEM NOC and Remote Operations Manual

Rel 4.2, 1032884-0001 • Hughes Vision UEM Reference Manual Rel 4.2,

1032885-0001 • Conditional Access Control (CAC) Configuration and

Operation Manual, 1029484-0001 • Hughes Multimedia Network Enterprise Package Delivery

Installation and Operations Manual, 1029824-0001

Example Explanation

Select the Edit menu. Items or menus you can select on a software screen: Edit

Type the W command. Command name: W

C:\bin\filename.exe Path or file name

Are you ready? System prompt or screen message

Type exit Operator input

ALT+ V Press the “ALT” and “V” keys simultaneously.

Edit -> Spelling Checker Indicates a menu/submenu sequence to select an action/option.

Enter a value in the Time field. Fields where users can enter or modify specific parameters

• About this document 1032039-0001 Revision C

Revision record

Revision Date of issue Scope

A 12/23/2004 Production Release

B 12/12/2005 Added revised timing unit information, including the DW7000 timing remote terminal.

C 03/31/2006 New Hughes branding

• About this document 1032039-0001 Revision C xvii

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• About this document 1032039-0001 Revision C

Chapter 1Introduction

This chapter covers the following topics:

• Background on page 1• ACP subsystem interdependences on page 3• Major ACP features on page 4

Background The two-way Hughes product requires a polarized transmitter at the user location. The antenna associated with the transmitter must be properly aligned to maximize the signal on the correct transponder (called the co-pol) while minimizing the signal on the adjacent transponders (called the cross-pol).

An earth station may leak energy to the opposite (horizontal or vertical) polarization when transmitting on the desired polarization. This may be caused by problems with antenna cross-pol isolation or installation/antenna pointing. If a remote terminal leaks enough energy to the opposite polarization, it can interfere with traffic at the same frequency on the opposite transponder. The satellite vendor may request satellite users to check their transmission on the cross-pol to prevent this type of interference. The ACP Server supports the communication and measurement functions needed to ensure the remote antennas are properly aligned as required to initiate two-way service, and periodically verify they remain optimally aligned.

The ACP Server provides the measurement for the client's cross-polarization requests. It operates up-to 224 rack-mounted spectrum analyzers, connected by General Purpose Interface Bus (GPIB) cables. Each GPIB supports up to 14 spectrum analyzers (seven pairs). The ACP Server:

• Allocates the bandwidth for client requests• Broadcasts the queuing status to clients• Broadcasts measurement results to clients

The client's cross-polarization requests consist of three parts:

• Pointing—used by the installer to make fine adjustments while pointing the antenna. It allows an installer to get continuous feedback for up to a configured period of time

Chapter 1 • Introduction 1032039-0001 Revision C 1

2

(once per second for up to 5 minutes as configured on the National NOC).

• Validate—used to enable a remote that is disabled due to pointing tests (TX21, TX22, and TX23) issued to confirm the accuracy of the antenna cross-pol alignment. The remote transmitter is enabled after the unit passes the validate tests.

• Revalidate—used to periodically check the remote antenna's cross-pol alignment.

A simplified example of this process flow is shown in Figure 1 and the basic procedure is described briefly below:

1. The antenna is pointed. This consists of peaking the receive signal strength by adjusting the antenna’s azimuth and elevation, while keeping the polarization setting at the value calculated by the Web Setup program. This is performed using feedback from the IRU.

2. Antenna polarization is adjusted by the installer using the Cross-pol Pointing mode of operation:a. The remote requests Cross-pol Pointing using unallocated

ranging bursts.b. The ACP Server responds with information about the

installer's/remote's place in the queue.c. In turn, the remote is provided with a test frequency.

Testing consists of the remote sending a narrow-band continuous wave (CW) carrier signal.

d. The ACP Server measures the cross-pol and co-pol values using a pair of spectrum analyzers. The ACP Server

Figure 1: ACP test process flow diagram

IRU/ITU

DownConverter

DNCCACP

BCDBCDBCD

CW

Requests

Requests

Measurement

Control

Status

Allocation

C WRequest

IRU/ITU

Request

StatusAllocation

Allocation

CW

Status

T01470001

Chapter 1 • Introduction 1032039-0001 Revision C

provides periodic feedback to the remote based on the cross-pol isolation measurement.

e. Based on this feedback, the installer peaks the remote antenna's polarization. If the desired degree of isolation cannot be achieved, the installer may make additional minor azimuth and elevation adjustments at the remote antenna.

If these adjustments fail to achieve the desired isolation level, Operations or Customer Care Center personnel may be consulted for additional support.

3. Once the antenna has been locked down, a Cross-pol Validation test confirms the cross-pol isolation has been achieved. The remote must pass this test before it will be enabled for normal transmit operation.

4. Periodically, the remote automatically revalidates itself to confirm that its cross-pol isolation still meets the specified requirement. The Revalidation requirement is less stringent than the Validation requirement, to avoid disabling remotes based on normal expected variances.

ACP subsystem interdependences

The ACP Server works with the DNCC, Timing Unit, and Satellite Gateway in the NOC. Figure 2 is a simple depiction of the packet flow.

The ACP Server operation is based on network timing. The ACP Server uses Superframe Numbering Protocol (SFNP) messages sent by the Timing Unit to obtain frame numbers. The arrival of these SFNP messages, approximately every 360 ms, serves as the ACP Server’s clock for scheduling Pointing, Validation, and Revalidation events. The ACP Server receives SFNP messages from the Timing Unit as they are being transmitted to the remotes and to the Local/Echo Timing IRUs.

A separate DW6000 remote (required to support Extended Ku-Band frequencies) connected to the ACP Server is designated the Calibration Remote. This DW6000 is used to calibrate all the


4

spectrum analyzer groups connected to the ACP via the GPIB serial bus.

All DNCCs in the network must recognize the correct IP address and port configured for the ACP Server to allow them to communicate with it over the MUX LAN. Requests for ACP measurements are received by the ACP Server via UDP-based multicast messages from the DNCCs as shown in the figure. SFNP information sent from the Timing Unit allows the ACP Server to enable the ACP process. The Timing Unit relays network timing information to the ACP Server. The ACP Server’s responses are sent out to the remotes via the Satellite Gateway.

Major ACP features

Regional ACP The user’s dish antenna must be pointed during the initial installation to the proper azimuth, elevation, and polarization. The user’s remote antenna transmits over a dual-polarity satellite. Therefore, the antenna polarization must be finely tuned to ensure that the transmitted signal does not bleed onto the adjacent transponder, which shares the same frequency space.

A CW is transmitted from the remote site to help an installer fine-tune the polarization. This signal is measured at the NOC on both horizontal and vertical polarizations. These measurements are processed and provided to the installer as a strength level or signal quality factor (SQF) that indicates the isolation.

The satellite does not provide the same gain for all locations in the country, therefore many installations cannot pass the automated cross-pol testing. These are areas in the satellite

Figure 2: ACP subsystem relationship


footprint where the co-pol cannot achieve a strong enough signal to provide the required isolation from the cross-pol noise floor.

To account for the satellite variations, the necessary isolation level must be determined using the location of the antenna, which has already been entered during the installation process. The IRU will supply the location of the antenna, in terms of latitude and longitude, as part of the ACP request. On the PC client, this location is based on the Zip code lookup table provided as part of the PC client. When the ACP Server receives a LatLong value in the ACP request, will determine the first zone in its tables that match the site. The zone will be determined as a polygon, based on the latitude and longitude coordinates of the apexes relative to a signal strength contour map.The Regional ACP Server feature allows you to specify a threshold based upon the dish antenna location. A regional configuration file defines the regions and


6

their Pointing, Validate, and Revalidate thresholds. Figure 3 shows an example of this type of configuration file.

This configuration file is located in the ACP root registry entry called PolyConfFile. Use Windows WordPad or another text

Figure 3: Regional ACP configuration file format

T01470003


editor to modify the file parameters as necessary. The file must be formatted exactly as shown in Figure 3.

The region configuration file may contain several regions. Each region has a region name. The next line specifies the unique ID for the region, which is used in the ACP result log file to identify the region in which the dish resides when the cross-pol measurement is performed. The third, fourth, and fifth lines define the thresholds (in 0.1 dB units) for pointing, validation and revalidation. The next (three, four, five, or more) lines designate the latitude and longitude of each apex of the area polygon. The # symbol terminates the region definition.

The registry parameter for this feature is located at

HKEY_LOCAL_MACHINE|SOFTWARE|Hughes Network Systems\DirecPC\ACP

The DisableRegionalACP value is set to 1 (disabled) by default. The value must be changed to 0 to enable Regional ACP.

A command utility program, RegionCheck, is provided to test the validity of the region configuration file. To use RegionCheck, open a command prompt window and type RegionCheck <filename> where filename is the region configuration filename. This utility displays any errors it detects.

Frequency auto-centering The frequency and span of the co-pol/cross-pol frequencies are statically configured on the ACP Server with the assumption that the carrier frequency is stable over time. However, the ACP test carrier frequency can drift from a few hundred hertz to a few thousand hertz. If the carrier drifts outside the measurement scope of the spectrum analyzers, the ACP Server only measures noise, rather than the transmission signal, missing the actual peak of the measurement carrier. When enabled, the Frequency Auto-centering feature will automatically center the carrier frequency, thus preventing the signal from drifting out of the spectrum analyzer’s configured range (or span) and invalidating the measurements.

The ACP Server recalibrates all the spectrum analyzer pairs at a pre-configured interval. The calibration unit is a remote that is usually co-located with the server and has a 45-degree polarization misaligned dish. The calibration unit transmits a CW wave with equal signal strength on both the co- and cross- polarizations. This mechanism can be used to automatically center the carrier frequency, under two possible scenarios:

Note: Parameters shown in the example are not actual values.


8

• When the frequency drifts a relatively small amount and the signal is still within the scope of the spectrum analyzer. The ACP Server measures the strength and frequency of the CW signal transmitted by the calibration unit. If the delta between the signal frequency and the center of the scope is greater than what was configured, the ACP Server automatically adjusts the spectrum analyzer settings to move the CW back into the center of the scope. The ACP Server limits the frequency shift within the maximum allowed limit. If the adjustment value exceeds the maximum allowed frequency adjustment limit, a SNMP alarm is sent and the pair is disabled.

• When the frequency drifts out of the scope of the spectrum analyzer, the ACP Server can only measure background noise to determine there is no signal. If no signal is detected, the ACP Server doubles the span of the spectrum analyzers and searches for the signal. When the signal is located, the server adjusts the measurement frequency back to the center of the scope then restores the original span. If a signal still cannot be detected after the span is expanded, the server sends out an SNMP alarm and disables the pair. It is important to compare the frequency of the signal with the adjacent ACP frequency value to ensure the correct signal is located.

The ACP Server actively monitors the ACP measurements such as Pointing, Validate and Revalidate. The remote's tuner is very accurate and transmits at the frequencies allocated by the ACP Server. The ACP Server can check the co-pol signal position for each cross-pol measurement. If the co-pol peak is detected around the edge of the spectrum analyzer for N consecutive times (Two registry key values are used: the allowed frequency delta value from the center frequency and counter N), ACP Server can initiate the calibration process to center the frequency based on the procedure described above regardless of the calibration interval setting.

Extended Ku-band frequency support

The ACP Server supports extended Ku-band frequencies (13.75 GHz to 14.5 GHz).

ACP Server subsystem capacity and limitations

ACP Server redundancy is not supported in the current implementation. Each ACP Server can support up to 32 GPIB controllers. Each GPIB controller can support up to seven pairs of spectrum analyzer pairs (14 total), for a total of 224 spectrum analyzer pairs.


Chapter 2Starting the installation

This chapter describes:

• Before you begin on page 9• Configuring the hardware on page 12• Installing the operating system on page 15

Before you begin Installing the ACP Server requires you to supply a significant amount of specific network- and site-related information. The process will be much simpler if you compile all the information you will need before you begin. Table 1 provides a place to list this information. Make a copy of the blank table and fill it in.

Chapter 2 • Starting the installation 1032039-0001 Revision C 9

10

Table 1: ACP Server installation data collection sheet

Information or parameter Value

Windows and network information

Windows Server 2003 Server product key

MUX LAN IP address (ACPMuxIP)

MGMT LAN IP address (ACPMgmtIP)

GPIB-ENET/100 LAN IP address

ACP-specific information

FrameIDMcastPort

FrameIDAdjustment

TimingUnitPID

FrameIDMcastIP

SGW McastIP

SGWUDPPort

SocksvrPort

SocksvrIP

MulticastIP

CenterFrq (Center Frequency)

DW6000-specific information

VSAT Return Path

Satellite Longitude Degrees

Satellite Hemisphere

VSAT Longitude Degrees

VSAT Longitude Minutes

VSAT Longitude Hemisphere

VSAT Latitude Degrees

VSAT Latitude Minutes

VSAT Latitude Hemisphere

Satellite Channel Frequency

Receive Symbol Rate

Viterbi/FEC Rate

LNB Polarization

Tx Polarization

VSAT Latitude Hemisphere

LNB 22KHz Switch

DVB Program number for user data

Chapter 2 • Starting the installation 1032039-0001 Revision C

You will need the following hardware and timing signal to properly configure the ACP Server:

• One or two Compaq (Hewlet-Packard) ProLiant DL360 Servers

• Three or more network interfaces per server• Four or more spectrum analyzers (Agilent model E4403B)• One National Instruments™ GPIB-ENET/100 controller for

each spectrum analyzer group• One GPIB cable for each spectrum analyzer• A sinusoidal 10MHz clock reference used in creating the

NOC. This is usually a Global Positioning System (GPS).source or a timing generator source.

DVB Program for DNCC data

LAN 1 IP Address

LAN 1 Subnet Mask

Number of Static Routes in Routing Tables

IP Gateway IP Address

SDLControl Channel Multicast IP Address

Default Gateway

Table 1: ACP Server installation data collection sheet (Continued)

Information or parameter Value


12

Configuring the hardware

You will need to unpack the servers and spectrum analyzers and install them into the equipment rack (see Figure 4). Refer to the manufacturer's documentation for specific installation instructions. Use this procedure to connect the ACP Server to the spectrum analyzers, GPIB-ENET/100 controller, antennas, and the Hughes network.

1. Connect the 10MHz reference from the GPS through a four-way splitter to the first spectrum analyzer's 10MHz IN socket (10MHz IN is labeled on the back of the spectrum analyzer) shown in Figure 5 and Figure 6 using a 50-ohm coaxial cable (W38) terminated with BNC connectors.

Figure 4: Basic ACP Server equipment rack front view

T01470003


2. Connect the GPIB-NET controller to the first spectrum analyzer using a GPIB cable (W22).

3. Daisy chain the remaining analyzers in the same group (using the GPIB Interface shown in Figure 5). This cable is labeled W23 in Figure 6.

4. Tighten the screws on the GPIB bus sockets to secure the GPIB cables.

5. Use an Ethernet cable (W3) to connect the ACP Server to the MUX LAN. Use the PCI-based Network Interface Card 2 (NIC2) port 2 for this connection.

6. Use an Ethernet cable (W4) to connect the ACP Server to the Management (MGMT) LAN. Use the PCI-based NIC2 port 1 for this connection.

7. Connect one end of an Ethernet cable (W6) to the LAN switch. Do not connect the other end cable to the GPIB-ENET/100 at this time. You will be prompted by the

Figure 5: Agilent ESA-E series spectrum analyzer back panel

T01470004

Note: Spectrum analyzers can be daisy-chained (W32) because the spectrum analyzer provides a 10MHz clock output.


14

NI-488.2 GPIB software installation program to connect the GPIB-ENET/100 module to the LAN at the appropriate time.

8. Connect the antennas through the PDS-M or L-Band Distribution Unit (LDU) to the spectrum analyzers as shown in Figure 96 on page 95.

The (Wn) cable numbers shown in Figure 6 are shown in greater detail on drawing 1035533 CABLE DIAG ACP RACK ACP. You may find this cabling diagram useful when configuring your ACP Server rack and associated hardware.

Figure 6: Rear panel connections

T01470005


Installing the operating system

The ACP Server uses Windows Server 2003 Server Standard Edition as its operating system. This section provides information for installing Windows Server 2003 on the Compaq (Hewlett-Packard) ProLiant 360DL Server. You must be able to access the internet to activate the installation from the Microsoft web site after the application has been installed.

1. Turn on the server power.2. Insert the Windows Server 2003 installation CD-ROM into

the appropriate drive. Installation will begin automatically.3. Follow the on-screen prompts. At the Licensing Modes

screen, verify the Per Server option is selected. The product is licensed for five servers. Click the Next button to continue.

4. Follow the remaining prompts to complete the installation.5. Remove the installation CD-ROM from the server after it

reboots.6. Repeat steps 1 through 5 for the second server (if used).


16

Chapter 3ACP rack installation

The ACP equipment can be installed in its own rack or in a shared rack. The rack can be off the shelf or provided by Hughes. This chapter addresses an Hughes-provided rack for exclusive ACP use. This chapter describes the procedures for installing the ACP rack in both earthquake-prone and non-earthquake-prone areas.

These topics are explained in detail:

• Inspecting rack equipment on page 17• Tools and materials required for installation on page 18• Unpacking the rack on page 18• Preparing the raised floor for rack mounting on page 20• Installing bushings and bushing plugs on page 39• Power and ground connections on page 40• Rear rack door installation on page 42

Overview The ACP rack should be installed on a sturdy, horizontal surface which is elevated above the building floor in order to run incoming and outgoing wires and cables to the rack. The wiring and cable route must be accessible via the openings built into the top and bottom of the rack for this purpose. The rack itself is anchored to the floor structure by earthquake-protective screws and fasteners.

Inspecting rack equipment

Inspect all shipping crates, boxes, or other containers for external damage; any damage should be noted before opening. Report any equipment damage to the shipping carrier immediately for claim purposes. Save all the packing material until the rack installation has been completed. Use the BOM as a checklist to inventory the shipment contents and to verify that all items noted in it are

The ACP rack must be installed in restricted access areas (for example, dedicated equipment rooms or equipment closets) in accordance with Articles 110-16, 110-17, and 110-18 of the National Electric Code, ANSI/NFPA 70.

Chapter 3 • ACP rack installation 1032039-0001 Revision C 17

18

present. Any shortages should be reported to Hughes immediately for resolution.

Tools and materials required for installation

The following tools and materials are required for installation and are furnished by the user:

• Flat-tip screwdrivers, various blade widths• Cross-tip (Phillips) screwdrivers, various blade widths• Ratchet wrench, 3/8-inch drive with standard sockets• Diagonal cutters, large• Adjustable wrench• Pliers, large• Hacksaw, junior and large• Reciprocating saw (for cutting floor tiles)• Crimping tool (including various terminal rings and spade

connectors)• Drill, with standard and masonry drill bits• Tape measure (at least 12-foot)• Multimeter (Fluke or equivalent)• Crimping tool (for crimping power cable lugs)• Level, 2-foot• Pallet truck (for moving rack and equipment crates)• Cable ties and adhesive-backed mounts

Unpacking the rack Follow the procedure in this section to unpack the ACP rack.

The ACP rack in its shipping crate weighs more than 1,000 pounds (454 kg). The empty rack itself weighs more than 750 pounds (341 kg). You need at least six installers to safely move and position it. You can be killed or severely injured if you attempt to move it alone.

Chapter 3 • ACP rack installation 1032039-0001 Revision C

1. Using a pallet truck as shown in Figure 7, move the ACP rack shipping crate near the installation location.

2. Remove the shipping crate from the ACP rack.3. Remove the plastic moisture barrier from the ACP rack.

Figure 7: Moving the rack shipping crate

G-26496 C 12/12/03

Pallet truck

Rack shipping crate


20

Preparing the raised floor for rack mounting

Follow this procedure to prepare the raised floor for the mounting of the ACP rack.

1. Measure the floor panels—panel measurement may be stated in U.S. Standard or metric.– U.S. Standard: 24 inches wide.– Metric: 600mm wide.

2. Determine appropriate alignment for rack mounting (front or rear):– For rear- aligned racks on standard panels, see Figure 8 on

page 21.– For rear- aligned racks on metric panels, see Figure 9 on

page 22.– For front- aligned racks on standard panels, see Figure 10

on page 23.– For front- aligned racks on metric panels, see Figure 11 on

page 24.3. After referencing the correct figure, use a pen to mark the

floor panels to indicate where the rack will be placed.4. Using the marks as a reference, use a ¾-inch drill bit to drill

each hole through the floor panel.

5. Use a reciprocating saw to remove rectangular cut-outs.

6. If installing the ACP rack in a non-earthquake area, follow the procedures in Mounting the rack on a raised floor (non-earthquake) on page 25.

7. If installing the ACP rack in an earthquake area, follow the procedures in Mounting the rack on a raised floor (earthquake) on page 30.

Note: Floor panels may be pre-cut based on the dimensions given in the floor layout diagrams. Be sure to use the correct floor layout diagram for the site.

Note: If floor panels contain concrete, it may be necessary to use a diamond saw to remove cut-outs.


Figure 8: Rack floor mounting dimensions (rear alignment, standard)

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Figure 9: Rack floor mounting dimensions (rear alignment, metric)

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Figure 10: Rack floor mounting dimensions (front alignment, standard)

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Figure 11: Rack floor mounting dimensions (front alignment, metric)

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Mounting the rack on a raised floor

(non-earthquake)

Follow the procedures in this section to install the ACP rack in a non-earthquake area.

Preparation Refer to Table 2 to inventory the parts in the floor support kit (Hughes 1026820-0014) for raised floors.

Perform the following steps before moving the rack into place on the raised floor.

1. Unpack the floor support kit and inspect it for visible damage. If it is damaged, immediately notify your supervisor and do not proceed with the installation.

2. Inventory the parts in the kit against the parts list in Table 2.3. Verify that the area where the rack will be installed has been

cleared of debris.4. Prepare the floor—ensure that the floor area is clean and the

floor panels are in good condition.

To avoid death, personal injury, or equipment damage caused by the equipment rack tipping over, the rack must be bolted securely to the floor.

Table 2: Floor support kit for raised floors (Hughes 1026820-0014)

Part Number Description Qty1026951-0001 22½-inch steel double channel 29009577-0002 1/2-13 channel nut w/spring 49009577-0005 1/2-13x2-3/4 hex head cap screw 4

9009428-0006 1/2-inch cam lock washer 81026790-0001 Stiffener pad 4

The empty ACP rack weighs more than 750 pounds (341 kg). At least six installers are required to safely move and position it. You can be killed or severely injured if you attempt to move it alone.


26

5. Insert two springnuts into the top of the double steel channel unistrut (see Figure 12). Space the springnuts so that they will line up with the holes in the floor panel (see Figure 14 on page 27). Repeat for other unistrut.

6. Retract all four leveling feet located on the underside of the rack (see Figure 13) by turning them in a clockwise direction.

Figure 12: Double channel assembly (non-earthquake)

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Figure 13: Rack leveling feet

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7. Carefully position the rack over the raised floor panel so that the slotted mounting holes in the four corners of the rack are aligned with the holes in the raised floor panel and the unistruts (see Figures 14 and 15).

Figure 14: Unistrut, raised floor, and rack positioning (non-earthquake)

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8. Refer to Table 2 on page 25. Install a stiffener pad, cam lock washer, and hex head cap screw into each of the four mounting holes in the rack and into the springnuts as shown in Figure 14 on page 27.

9. Place a level across the top of the rack to determine that the rack is level in both the X (side-to-side) and Y (front-to-back) axes as shown in Figure 16. If not, adjust the leveling feet as required to level the rack.

Figure 15: Slotted mounting hole locations

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10. Secure the rack to the floor panel (see Figure 14). Torque the four cap screws to 45–50 ft-lbs.

11. Proceed to Installing bushings and bushing plugs on page 39.

Figure 16: Leveling the ACP rack

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30

Mounting the rack on a raised floor (earthquake)

Follow the procedures in this section to install the ACP rack in an earthquake area.

There are two earthquake floor support kits available for the ACP rack; the two kits are identical except for the pedestal assembly. Table 3 lists the components in both kits and identifies the correct pedestal assembly according to the floor height.

1. Measure the raised floor height (the distance from the concrete to the top of the raised floor panel).

2. Select the correct floor support kit for the raised floor height.– For raised floors 11”—18” high, use floor support kit

Hughes 1026820-0001.– For raised floors 18”—25” high, use kit Hughes

1026820-0005.

Preparation Perform this procedure before moving the rack into place on the raised floor.

1. Unpack the earthquake floor support kit and inspect it for visible damage. If it is damaged, immediately notify your supervisor and do not proceed with the installation.

2. Inventory the parts in the kit against the parts list in Table 3.3. Verify that the location where you install the first rack has

been cleared of debris.

Note: If the raised floor height is exactly 18 inches, you may use either kit.

Table 3: Floor support kit for raised floors (Hughes 1026820-0001/-0005)

Part Number Description Qty

1026951-0001 22½-inch steel double channel 2

9009577-0002 1/2-13 channel nut w/spring 8

9009577-0004 1/2-13x1-1/2 hex head cap screw 4

9009577-0005 1/2-13x2-3/4 hex head cap screw 4

9009562-00029009562-0003

Under floor pedestal assembly (11-18 inch floors) Under floor pedestal assembly (18-25 inch floors)

4

9009428-0006 1/2-inch cam lock washer 12

1026790-0001 Stiffener pad 4

To avoid death, personal injury, or equipment damage caused by the ACP rack tipping over, the rack must be bolted securely to the floor.


4. Verify the height of the raised floor and check the length of the pedestal rod. If the rod is too long, cut and dress one end of the rod.

5. Prepare the floor—make sure the floor area is clean and the floor panels are in good condition.

Install pedestal assemblies 1. Refer to Figure 17. Insert two springnuts into the bottom of the double steel channel unistruts.

2. Loosely attach the pedestal brackets (two on each unistrut) to the bottom of the double unistruts using 1/2-13 x 1-1/2 hex head cap screws with 1/2-inch cam lock washers threaded into the springnuts.

3. Space the pedestal brackets at least eight inches (20.32 cm) apart from each other.

Figure 17: Double channel assembly (earthquake mounting kit)

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4. Position the pedestal brackets at a 150° angle with the unistrut and tighten the brackets securely to the unistrut (see Figure 18).

5. Insert two springnuts into the top of the double steel channel unistruts as shown in Figure 17 on page 31, and space the springnuts so they line up with the holes in the floor panel (see Figure 19 on page 33).

Figure 18: Unistrut and pedestal positioning

If the pedestal bracket is not secured properly it could pull free from the unistrut during an earthquake and damage the equipment.

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6. Insert four 1/2-13 x 2-3/4 hex head cap screws and 1/2-inch cam lock washers through the holes in the floor panels and into the springnuts on the unistruts as shown in Figure 19. Temporarily torque the cap screws to 2–5 ft lbs (2.7–6.8 Nm) to stabilize the floor panel/pedestal assembly. Final torquing will be accomplished later.

Figure 19: Unistrut positioning (earthquake)

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7. Position the pedestal rod so that it is at a 15° vertical angle from the rack (see Figure 20) and use a pen to mark the concrete floor to indicate where the holes for the pedestal assembly safety bolts will be drilled. Repeat for the three remaining pedestal assemblies.

8. Reposition all four pedestal assemblies so that they are out of the way (it may be necessary to loosen the four 1/2-13 x 2-3/4 hex head cap screws securing the floor panel to the unistruts).

Secure pedestal assemblies to concrete floor

1. Obtain a 12mm carbide–tipped drill bit. Using the reference marks you made on the floor from Step 7 of the previous section, drill each hole three inches (7.62 cm) deep.

2. Clean out the holes and surrounding area.3. Place the anchors in the holes you drilled from Step 1.4. Reposition each pedestal assembly so that the pedestal

bracket is positioned over its corresponding mounting hole.5. Place the flat washer on the bolt followed by the camlock

washer pair (Figure 21). Insert the bolt through the pedestal bracket “C” clamp and into the holes and anchors. Repeat for the other three bolts/anchors.

Figure 20: Pedestal positioning

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6. Use a torque wrench to tighten each bolt securely in its anchor to 15 ft/lb (20.3 Nm), until the slotted sleeves on the anchors are forced tightly against the concrete surface of the hole.

Adjust pedestal assemblies Refer to Figure 22 and perform this procedure to adjust the four pedestal assemblies.

1. Verify that the pedestal rod is centered on the two “C” clamps.

2. Torque the bottom two 1/2-13 hex nuts to 45—50 ft lb (61—67.8 Nm).

3. Using the top two 1/2-13 hex nuts, raise or lower the pedestal so that the top unistrut is seated firmly and evenly to the floor panel.

4. Repeat this procedure for the remaining pedestal assembly on the opposite end of the unistrut, and for the two pedestal n assemblies on the other unistrut.

Figure 21: Installing bolts and anchors

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Figure 22: Pedestal assembly

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Mounting the rack onto the raised floor panel

1. Remove the four 1/2-13 x 2-3/4 hex head cap screws securing the floor panel to the unistruts.

2. Verify that the unistruts are still aligned with the floor panel mounting holes.

3. Fully retract all four leveling feet located on the underside of the rack (see Figure 23) by turning them in a clockwise direction.

4. Carefully position the rack over the floor panel so that the mounting holes in the four corners of the rack are aligned with the holes in the floor panel (Figure 24).

Figure 23: Rack leveling feet adjustment

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The empty ACP rack weighs more than 750 pounds (341 kg). You need at least six installers to safely move and position it. You can be killed or severely injured if you attempt to move it alone.


38

Figure 24: Aligning the rack with the raised floor and unistruts

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5. Place a level across the top of the rack and verify that it is level in both the X and Y axes (see Figure 16 on page 29). If not, adjust the leveling feet as required to level the rack.

6. Secure the rack to the floor panel using the four stiffeners, hex head cap screws, and cam lock washers (see Table 3 on page 30). Torque cap screws to 45–50 ft lb (61–67.8 Nm).

Installing bushings and bushing plugs

This procedure lists the steps necessary to install bushings (Hughes 1027434-0001) and bushing plugs (Hughes 1025427-0001) onto the bottom and top panel cable access holes. The bushings are necessary to prevent damage to the cables from the sharp inside edges of the cable access holes.

1. Determine which holes will be used for cable access. Unused holes will be plugged.

2. Install a bushing and bushing plug into a bottom panel hole (see Figure 25), and repeat for the remaining bottom panel holes.

Note: To install bushings/bushing plugs in bottom panel holes, it may be necessary to remove an adjacent floor panel.

Note: Do not install bushing plugs in holes where cables will be routed.

Figure 25: Bottom panel bushing installation

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40

3. Install a bushing and bushing plug onto a top panel hole (see Figure 26). Repeat for the remaining top panel holes.

4. Insert cables through the bushing holes where needed and connect to the appropriate locations.

Power and ground connections

The AC input line from the main AC power source is connected by a 3-wire 8-AWG cable according to the site specific color code.

The Puluzzi PDU and main AC power source is connected through the female/male L6-30, 240 V 30A twist lock. Each 30 A feed is connected to the 30A building power breaker.

The twist lock is considered the quick power disconnect point.

Note: Do not install bushing plugs in holes where cables will be routed.

Figure 26: Top panel bushing installation

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The main power connection twist lock is a safety quick disconnect device in addition to the PDU power switches. Use this switch to disconnect main power before performing any work inside the ACP rack. The high leakage current can be potentially hazardous and could result in death or serious injury.


Ground connection 1. Verify that the UL-listed circuit breaker or CE-compliant device is off.

2. To prevent accidental activation of the UL-listed circuit breaker or CE-compliant device while work is in progress, tag and/or lock the UL-listed or CE-compliant device to indicate the equipment is being serviced. This is to prevent physical injury as described in the warnings above.

3. Route the power and earth ground cables from the UL-listed circuit breaker (for UL-compliant sites), or the CE-compliant device (for CE-compliant sites) to the ACP rack.

For sites requiring UL approval, a readily accessible UL–listed circuit breaker rated 30A per feed maximum must be provided adjacent to the rack to serve as the disconnect device and overcurrent protection device. Failure to comply with this warning could result in personal injury caused by electric shock.

Verify that the UL-listed circuit breaker is off before routing a power cable from the circuit breaker to the ACP rack. To prevent accidental activation of the circuit breaker while installation work is in progress, tag and/or lock the circuit breaker to indicate that the equipment is being serviced. Failure to comply with this warning could result in personal injury caused by electric shock.

For CE-compliant sites, a readily accessible CE-compliant device must be provided adjacent to the rack to serve as the disconnect device and overcurrent protection device. Failure to comply with this warning could result in personal injury caused by electric shock.

Verify that the CE-compliant device is off before routing a power cable from the device to the ACP rack. To prevent accidental activation of the CE-compliant device while installation work is in progress, tag and/or lock the device to indicate that the equipment is being serviced. Failure to comply with this warning could result in personal injury caused by electric shock.


42

Rear rack door installation

If the rear rack door is already installed, then this section is complete. Otherwise, install the door by aligning its hinges with the rack’s hinge pins, then lower the rear door onto them. Verify that all door hinges are seated on their hinge pins and that the door opens and closes properly.

Grounding The ACP rack is grounded for safety with a green/yellow tracer 10AWG wire. All modules where AC power is delivered will be grounded via wires attached to a point on the rack’s unpainted surface.

For signal ground, an extra ground wire is attached between the rack and any other peripheral devices.

High leakage current present—earth connection is essential before connecting AC supply.

The rear rack doors are a part of the fire enclosure. therefore, to avoid a fire hazard, they must be closed when the equipment is not being serviced. Failure to comply with this warning could result in personal injury and equipment damage caused by fire.


Chapter 4Installing and configuring software

This chapter contains the procedures you will need to:

• Before you begin on page 43• Installation procedure on page 43• Installing the ACP software on page 65• Enabling the Timing Unit for ACP operation on page 84• Configuring the calibration remote terminal on page 88• Transmitting CW signal on page 90

Before you begin Before you attempt to install the ACP software:

• Verify the hardware has been configured as described in the previous chapter.

• Verify the Windows 2003 Server has been installed.• Verify the Network Operations Center has assigned MUX,

MGMT, and GPIB LAN IP addresses to the ACP Server.• Verify the ACP Server has been configured with three

network adapters on the MUX, MGMT, and GPIB LAN segments (see Figure 6 on page 14).

Installation procedure Complete this procedure to install the ACP software:

1. Verify each of the LAN connections from Start→Control Panel→Network Connections.

2. Check the Show icon in taskbar when connected box (as shown in the following screen) for each LAN connection.

Chapter 4 • Installing and configuring software 1032039-0001 Revision C 43

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3. Name (or rename) each of these LAN connections as shown in the table below. These IP addresses are shown as suggested examples. Your actual addresses may be different depending on your specific network configuration and addressing constraints.

The table also lists the cable numbers shown in Figure 6 and the NIC used to connect the LAN cable.– NIC 1 is the motherboard-based or built-in network

interface. – NIC 2 is a PCI-based or add-on card installed in the ACP

Server. – The 2/2 entry in the table above means the cable should be

connected to port 2 of NIC 2.

Figure 27: Local Area Connection 2 Properties screen

Table 4: Renaming LAN connections

LAN connection IP address Cable NIC/Port Name Subnet mask

MUX 192.168.1.50 W3 2/2 MUX 192.168.1.50 255.255.255.0

MGMT 192.168.0.50 W4 2/1 MGMT 192.168.0.50 255.255.255.0

GPIB-ENET/100 10.0.0.1 W6 1/1 GPIB 10.0.0.1 255.255.255.0

Chapter 4 • Installing and configuring software 1032039-0001 Revision C

Installing the GPIB driver Use this procedure to install the Version 2.1 National Instrument GPIB software driver. The file needed install the driver can be accessed and downloaded by navigating to

direcweb.hns.com→Resource Library→Driver→i488221.exe.

Installing other versions of the driver software may cause unexpected results. Additional detailed information is provided in the Getting Started with Your GPIB-ENET/100 and NI-488.2 for Windows 2000/NT manual provided with the GPIB-ENET/100 module.

1. Verify that the GPIB-ENET/100 module is turned OFF and the network cable is unplugged.

2. Insert the ACP software application CD-ROM in the appropriate drive on the ACP Server.

3. Navigate to the GPIB directory on the CD-ROM and open the folder.

4. Click the Ni488221.exe file to launch the WinZip self-extractor. The files will uncompress into a newly-created c:\TempNi4882 folder.

5. Double-click setup.exe to begin installing the NI-488.2 software. The NI-488.2 for Windows screen appears.

Note: The manual is available at http://www.ni.com/pdf/manuals/322752a.pdf in PDF format.

Figure 28: NI-488.2 for Windows screen


46

6. Click the Install Software selection. The Welcome screen shown below appears.

7. Click Next to begin installing the NI-488.2 GPIB software.

Figure 29: Welcome screen


8. Read the National Instruments Software License Agreement. Highlight the I accept the License Agreement radio button and click Next to continue.

9. Click Next to install the software in the default directory.

Figure 30: License Agreement screen

Figure 31: Destination Folder screen


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10. Verify the Typical radio button is selected and click Next.

Figure 32: Select Installation Type screen


11. Select Next to complete the installation.

Figure 33: Start Installation

Note: You may encounter one or more popup windows reporting an Error in custom action during the installation process. Click OK to continue the installation. These errors do not affect installation or subsequent operation.

Figure 34: Install Error pop-up


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12. The installation is complete. Click Next to launch the Add GPIB Hardware Wizard.

13. The Add GPIB Hardware Wizard screen appears. Highlight GPIB-ENET/100 as shown, then click Next.

Figure 35: Installation Complete screen

Figure 36: Add GPIB Hardware Wizard screen


14. Connect the Ethernet cable (W6) and press the GPIB-ENET/100 power switch ON. Click Next.

15. Wait until you see a steady (or blinking) yellow LED on the GPIB-ENET/100 module. Then click Next. If you do not see a steady (or blinking) yellow LED, refer to the instructions shown on the screen to resolve the problem.

Figure 37: Connect Power and Ethernet cables screen

Figure 38: Power Ready LEDs screen


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16. Click Search for GPBI-ENET/100 to launch the NI Ethernet Device Configuration Utility.

17. Highlight the Unconfigured device and click Properties.

Figure 39: IP Address or Hostname screen

Figure 40: NI Ethernet Device Configuration screen


18. The Hostname should appear as nienetNNANANN, where NNANANN is the serial number of the GPIB-ENET/100 module. Enter 10.0.0.10 as the IP address and 255.255.255.0 as the subnet mask settings.

19. Click OK to reboot the GPIB-ENET/100 module.

20. While the module reboots, the message in Figure 42 appears. Click OK to continue.

Note: The IP address can be set to any private IP address assigned by an administrator.

Figure 41: GPIB-ENET/100 Properties screen

Figure 42: GPIB-ENET/100 Properties pop-up


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21. Click Refresh if the IP address you entered on the previous screen does not automatically replace the “Unconfigured” entry as in Figure 43. Double-click the IP address/hostname entry when it appears in the window as shown in Figure 43.

22. The GPIB-ENET/100 module's IP address now appears in the Enter IP Address or Hostname field as shown below. Click Next to add the hardware to the system.

Figure 43: NI Ethernet Device Configuration - Configured screen

Figure 44: Enter IP Address or Hostname screen


23. Click Yes to continue installing the GPIB-ENET/100 driver software. If this or a similar screen reappears, continue to click Yes until the Add GPIB Hardware Wizard screen appears.

24. Select the Restart radio button and click Finish. The ACP Server will reboot.

Figure 45: Security Alert - Driver Installation screen

Figure 46: Shutdown/Restart screen


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25. After you log back in to Windows, the NI-488.2 Getting Started Wizard screen appears. Click on Verify your hardware and software installation.

26. Verify all installed GPIB-ENET/100 controllers pass the self-test. Click OK.

Figure 47: NI-488.2 Getting Started Wizard screen

Figure 48: Troubleshooting Wizard Help screen


27. The NI-488.2 Troubleshooting Wizard tests the installation. Verify the interface status is passed as shown in the example that follows. Click Exit to return to the Getting Started Wizard.

28. Verify the Do not show at Windows startup box is checked, then click Exit.

Configuring the spectrum analyzer GPIB address

This section contains procedures to:

• Configure the spectrum analyzers.• Set up the corresponding spectrum analyzer name in the

registry.• Set up the GPIB address for each individual spectrum

analyzer.

GPIB is a serial bus. Each device attached to the bus has a unique GPIB address. All the addresses are configured in the control

Figure 49: Troubleshooting Wizard screen

Figure 50: NI-488.2 Getting Started Wizard - Checked screen


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panel GPIB applet, with each analyzer assigned a unique name. The default is DEV1, DEV2, etc. as shown in Figure 51.

1. Follow the steps below to configure the spectrum analyzers:a. Open C:\program files\National Instruments\NI-488.2\bin\Gpibconf.exe.

b. From the GPIB Configuration window, highlight and double-click on an entry in the Device Name window to bring up the Edit Device Name popup (shown in Figure 51).

c. Change the name to GRPxSAy, where x is the group number and y is the spectrum analyzers within that group as shown in Figure 51. This name must match the registry setting, where x and y are the group number and spectrum analyzer number, respectively.

d. Verify Device 1 (spectrum analyzer 1 now named GRP1SA1) has Primary GPIB Address 1.

e. Repeat steps 2 and 3 to configure the second spectrum analyzer. The second spectrum analyzer should have Primary GPIB Address 2.

Figure 51: GPIB Configuration - Edit Device Name screen

Note: If you are using more than one pair of spectrum analyzers, repeat steps b and c as necessary until you have configured all of the spectrum analyzers in your system.


f. Click OK.

2. Configure each spectrum analyzer with the corresponding GPIB ID.a. Turn on each spectrum analyzer. By convention, the top

spectrum analyzer in the pair is SA1 assigned to the co-pol function. The bottom spectrum analyzer in the pair is SA2 assigned to the cross-pol function.

b. Press the System button located on the upper right side of the spectrum analyzer front panel.

c. From the spectrum analyzer, select Remote Port from the right side of the screen.

d. Enter the GPIB address configured in the GPIB configuration applet. (1,2, ….n)

e. Press <ENTER>.f. Repeat steps 2 through 5 for each spectrum analyzer in the

system.

3. Verify the GPIB-ENET/100 communicates with the spectrum analyzers.

a. Double-click the desktop Measurement and Automation icon.

Figure 52: GPIB Configuration screen


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b. Highlight the Every time I launch MAX radio button on the User Preferences window. Click OK.

c. Expand the Devices and Interfaces submenu in the Configuration panel.

Figure 53: User Preferences screen

Figure 54: Measurement & Automation Explorer screen


d. Highlight the GPIB0 (GPIB-ENET/100) entry.

Figure 55: GPIB (GPIB-ENET/100) - Measurement & Automation Explorer screen


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e. Double-click the Scan for Instruments button above the Configuration banner.

Figure 56: Measurement & Automation Explorer - Scan for Instruments screen


f. Double-click the instrument number (Instrument0) in the Configuration pane.

Figure 57: Measurement & Automation Explorer - Configuration screen


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g. Verify the information in the Instrument0 pane. Repeat for the remaining spectrum analyzer(s).

h. Verify the correct information appears for each spectrum analyzer and exit the Measurement and Automation Explorer window. You can now begin installing the ACP Server software.

Refer to the ACP 5.0.0 Release Notes (H33604) for additional details and latest information about this version of the ACP Server application.

Setting GPIB address on a spectrum analyzer

The GPIB address must be set on the spectrum analyzer for coordination with the GPIB gateway. The naming convention consists of the GPIB group number and the SA number. For example, with GPIB group x and SA number y, the resulting name would be GRPxSAy. For a single GPIB interface, the GPIB address must be unique.

Figure 58: Measurement & Automation Explorer - Instrument0 screen


Installing the ACP software

Use this procedure to install the ACP application software.

1. Locate and open the ACP software folder on the CD-ROM. 2. Double-click the ACP_5.0.x.x.exe file. 3. Click Unzip to unzip the ACP installation file, then click

Close. 4. Using My Computer, navigate to the directory containing the

unzipped ACP software files. Double-click the Setup.exe file. The Setup program prompts you through the software installation. Click Next to begin installing the software.

Figure 59: Hughes NOC Server Software Setup screen


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5. The Installation Content screen lists the applications that will be installed. Click Next.

6. Click Next to accept the default Destination Folder.

Figure 60: Installation Content screen

Figure 61: Choose Drive screen


7. Select the Configure all parameters radio button, then click Next.

8. Click OK to start configuring the ACP Server parameters.

9. The values entered on this screen and the following screens are used to configure the Windows registry entries that control the ACP Server operations.

A table under each screen provides the field name, default parameter value, and the Engineering recommended value. Refer to Table 1 for parameters unique to your particular installation.

Figure 62: Setup Type screen

Figure 63: Information pop-up


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Enter the required parameter in each field. Click Next.

Figure 64: ACP Configuration - ID screen

Table 5: ACP configuration - ID fields

ACPGUI field (Default value) Description Recommended value

Primary ACP checkbox (Not Checked); This is the active server Checked

Backup ACP checkbox (Not Checked); Used as the redundant server Checked

Choose Trace Level Warnings - Debug, Info, Errors, Warnings Debug

Gateway ID (1) ID assigned in the SGW. The gateway ID should be configured as priority 0 or 1 on the SGW.

TimingUnit PID (401) TimingUnit PID 400

ACP ID (1) 1= Primary; 2= Redundant 1

Log file length (200) The length of each log file (in Kbytes) 10000


10. Enter the required parameter in each field. Click Next.

Figure 65: ACP Configuration - Ports screen

Table 6: ACP configuration - ports fields


ACPMgmtIP (127.0.0.1) IP address on the Management LAN As per NOC configuration

RedPeerIP (127.0.0.1) Used by the redundant server 127.0.0.1

ACPMgmtTCPPort (8080) Management LAN port 8080

RedPeerUDPPort (0) Used by the redundant server 0

RedLocalUDPPort (1) Used by the redundant server 1

FrameIDMcastIP (229.19.9.20) SFNP Frame id multicast ip address As per NOC Configuration

FrameIDMcastPort (9920) SFNP Frame id multicast ip port 9920

Note: The recommended value for the FrameIDMcastPort is 9920 as a reminder to the operator to make the SFNP messages sent to the SGW in a multicast channel. An operator can change it to any valid value.


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11. Enter the required parameter in each field. Click Next.

Figure 66: ACP Configuration - Addresses screen

Table 7: ACP configuration - addresses fields


RCMAC (030001010000) MAC address used to send ACP messages through satellite gateway

030001010000

SGWMcastIP (229.9.9.2) SGW IP address (multicast) As per NOC configuration

SGWUDPPort (9902) SGW UDP port number As per NOC configuration

DVBPacking (1) STX DVB packing flag 0

ACPMuxIP (192.168.250.31) ACP Server IP Address in the MUX LAN

As per NOC configuration


12. Enter parameters for configuration of the ACP Server. Click Next.

The MinRevalidInterval and MaxRevalidInterval parameters specify the time thresholds (in seconds) for performing an ACP Revalidate operation.

When the Time Since Last XPOL (which can be seen in the remote statistics) exceeds the MinRevalidInterval time, the remote uses the LongRandomInterval to set a time (in frames) in the future to request an ACP test. During this backoff period (this backoff downcounter also appears in the remote statistics) the remote is able to transmit. The TxCode should be 8.

Figure 67: ACP Configuration - Server screen

Table 8: ACP configuration - server fields


MinRevalidInterval (100000) Minimum interval (in seconds) to revalidate the remote.

259200 (three days)

MaxRevalidInterval (200000) Maximum interval (in seconds) to revalidate the remote.

2768400 (31 days)

TestAllocFrameNum (24) Testing allocation frame number used to fill in ACAP header. This is also used to fill in ACP interval number used to define the measurement cycle. Unit is frame.

23

ShortRandomInterval (60) Short Random Interval: Parameter (in frames) passed with ACAP message.

3000

LongRandomInterval (384) Long Random Interval: Parameter (in frames) passed with ACAP message.

864000


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When the Time Since Last XPOL exceeds the MaxRevalidInterval time, the remote uses the ShortRandomInterval parameter value to set a time (in frames) in the future to request an ACP test. The ShortRandomInterval value should be set for less than a minute. During this backoff period the transmit function will not be available and the TxCode will be 23.

13. Enter parameters for the ACP Server configuration. Click Next

Figure 68: ACP Configuration - Offset screen

Table 9: ACP configuration - offsets fields


CopolOffset (949998080) Co-pol offset in Hz: System-wide parameter used for all measurement pairs.

Use default for now. Proper values will be calculated from measured values in a later procedure.

Xoffset (949999500) Cross-pol offset in Hz: System-wide parameter used for all measurement pairs.


ITUTransmitLimit (850) Transmission threshold: Value in minus. Currently threshold in the registry is –85 db. Unit is 0.1db. Either Co-pol or cross-pol must be measured above the threshold to assume the ITU is transmitting.


ValidMeasureTimeInms (32) The offset time (in milliseconds) used to authenticate the measurement result. Adjust this parameter to ensure the measurement is taken place when ITU transmits at its full power.

Use default = 32


14. Select OK to start the configuring the ACP spectrum analyzer pairs.

15. Enter parameters for configuration of the ACP Pairs. Select Next.

Figure 69: Information - spectrum analyzer pop-up

Figure 70: ACP Pair Configuration screen

Table 10: ACP pair configuration fields


CalibrationIntervalInSeconds (72000) The interval (in seconds) to calibrate all the spectrum analyzer pairs.

3600

CalibrationLimitInDB (100) Maximum allowed measurement difference (in 0.1 dB) between two pairs. Unit is 0.1dB

50

NonCalibTimes (16) Maximum (consecutive) allowed non-calibrated times before disable the pair.

4


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16. Select OK to start ACP Pairs (per pair) configuration.

17. Enter parameters for configuration of the ACP Pairs (per pair). Select Next.

PointingIsolationPassLimit (300) The minimum Co-pol and cross-pol difference (in 0.1 dB) to pass the “pointing” test.

Based on noise floor isolation300

ValidateIsolationPassLimit (300) The minimum Co-pol and cross-pol difference (in 0.1 dB) to pass the “Validate” test.


RevalidateIsolationPassLimit (200) The minimum Co-pol and cross-pol difference (in 0.1 dB) to pass the “Revalidate” test.


Table 10: ACP pair configuration fields (Continued)


Figure 71: Information - ACP pairs pop-up

Figure 72: ACP Pair Configuration - Group screen

Table 11: ACP configuration - group fields


CopoleSAGroup (1) Co-pol spectrum analyzer group. 1

CopoleSANumber (1) Co-pol - Spectrum analyzer number 1

CrosspolSAGroup (1) Cross-pol spectrum analyzer group 1


18. If you are using more than one pair of spectrum analyzers, select Yes and repeat the previous steps. Otherwise select No to continue.

19. Select OK to begin configuring the ACP GPIB parameters.

CrosspolSANumber (3) Cross-pol Spectrum analyzer number. 2

PAIRActive (0) 0=Disable; 1=Enable 1

CalibOffset (334) The desired calibration offset (in 0.1 dB) for this pair

0

Table 11: ACP configuration - group fields (Continued)


Figure 73: Question pop-up

Figure 74: Information - ACP GPIB pop-up


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20. Enter parameters for configuration of the ACP GPIB. Select Next.

21. Click OK to begin ACP GPIB group configuration.

Figure 75: ACP GPIB Configuration screen

Table 12: ACP GPIB configuration fields


TraceLevel (0) Trace level for GPIB moduleTracing messages are categorized into the following four levels: Debug, Informational, Warning, and Error. Module-specific messages can be turned of or off by setting or resetting subsystem flags. There are restrictions on the maximum size of an individual log file (ACP_SYS_LogFileLen), but there is no limit to the number of log files that can co-exist.

0

MaximumErrorAllowed (20) Maximum errors (except timeout) allowed before disable the spectrum analyzer pair

20

MaximumTimeoutAllowed (5) Maximum (consecutive) timeout incidents allowed before disable the spectrum analyzer pair

5

Figure 76: Information - ACP GPIB group pop-up


22. Enter parameters for configuration of the ACP GPIB group. Select Next.

Figure 77: ACP GPIB Configuration - spectrum analyzer screen

Table 13: ACP GPIB configuration - spectrum analyzer fields


GpibActive (1) 1=Enabled; 0=Disabled 1

Span1(Hz) (2000) Parameters to configure the spectrum analyzer (in Hz) 2000

VBW1(Hz) (30) Parameter to configure the spectrum analyzer (in Hz) 30

RBW1(Hz) (30) Parameters to configure the spectrum analyzer (in Hz) 30

Span2(Hz) (2000) Parameters to configure the spectrum analyzer (in Hz) 2000


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23. Enter parameters for ACP GPIB group configuration. Select Next.

24. Select OK to begin configuring ACP GPIB group 1.

Figure 78: ACP GPIB Configuration - spectrum analyzer screen (cont.)

Table 14: ACP GPIB configuration - spectrum analyzer fields


VBW2(Hz) (30) Parameters (Span, VBW, and RBW) to configure the spectrum analyzer (in Hz).

30

RBW2(Hz) (30) Parameters (Span, VBW, and RBW) to configure the spectrum analyzer (in Hz).

30

Span3(Hz) (2000) Parameters (Span, VBW, and RBW) to configure the spectrum analyzer (in Hz).

2000

VBW3(Hz) (30) Parameters (Span, VBW, and RBW) to configure the spectrum analyzer (in Hz).

30

RBW3(Hz) (30) Parameters (Span, VBW, and RBW) to configure the spectrum analyzer (in Hz).

30

Figure 79: GPIB Configuration pop-up


25. Enter parameters for ACP GPIB group 1 configuration. Select Next.

Figure 80: ACP GPIB Configuration - GPIB group 1 screen

Table 15: ACP GPIB configuration - GPIB group 1 fields


SAActive (1) 1= Enable, 0= Disable 1

SAName (Grp1sa1) Spectrum analyzer name used to match to GPIB address defined in GPIB applet in the control panel.

Use Grp1sa1 for the first spectrum analyzer. Use Grp1sa2 for the second spectrum analyzer.

bCrosspol (0) Type of measurement for which the spectrum analyzer is configured: 0 = Co-pol (vertical) and 1= cross-pol (horizontal).

Use 0 for the first spectrum analyzer. Use 1 for the second spectrum analyzer.

MethodNum (1) Which set of parameters to use. If the spectrum analyzer is configured as Co-pol, the setting is irrelevant. Co-pol SA uses the setting specified in Cross-pol analyzer.

2

CenterFrq (479232) Center frequency (in 100 Hz). If the spectrum analyzer is configured as Co-pol, the setting is irrelevant. Co-pol SA uses the setting specified in Cross-pol spectrum analyzer.

This is the RF Code for the current spectrum analyzer pair frequency. Refer to the ACP System Engineering Guidelines.


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26. In order for ACP to operate correctly you will need at least two spectrum analyzers. Select Yes to configure the second spectrum analyzer. Repeat this step using the values for the cross-pol spectrum analyzer. Otherwise, select No.

27. If there is more than one group, select Yes. Otherwise select No.

28. Click OK to begin ACP Socksvr configuration.

Figure 81: Question - SA pop-up

Figure 82: Question - group pop-up

Figure 83: Information - Socksvr pop-up


29. Enter parameters for the ACP SOCKSVR configuration. Select Next.

30. Select OK to begin ACP System Management parameter configuration.

Figure 84: ACP SOCHKSVR Configuration screen

Note: The values for these parameters must match those configured for the DNCC.

Table 16: ACP SOCHKSVR configuration fields


SocksvrPort (6666) ACP UDP port used by the DNCC to send messages to the ACP Server. (DNCC system configuration field, DNCC_SYS_ACPMulticastPort)

As per NOC Configuration

SocksvrIP (192.168.250.31) IP address used to join multicast group As per NOC Configuration

TraceLevel (33) Trace level configuration about socket server module. 2

MulticastIP (229.9.9.111) ACP IP address used by the DNCC to send Messages to the ACP Server. (DNCC system configuration field, DNCC_SYS_ACPMulticastIP)


Figure 85: Information - System Management pop-up


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31. Enter parameters to configure ACP System Management. Select Next.

Figure 86: ACP Sysmgmt Configuration screen

Table 17: ACP sysmgmt configuration fields


TraceLevel (4) System management module trace level configuration

0

MaxPointingQueueSize (32) Maximum allowed pointing queue size 100

MaxValidateQueueSize (200) Maximum allowed validate queue size 200

MaxRevalidateQueueSize (200) Maximum allowed revalidate queue size 200

MaxPointingFrameNum (60) Maximum allowed active pointing user numbers

60

DelayedFrameNum (5) Number of ACP measurement cycles needed to send notification message to IRU. This equals the configuration value of “ACP_SYS_TestALLOCFrameNum” + 1frame. Typically the DelayedFrameNum can range from 4-7. The ACP_SYS_Test_ALLOCFrameNum parameter is configured to 21 by default.

5

PointingLowWaterMark (100) Low watermark from Pointing queue 70


32. Enter parameters to configure ACP System Management. Select Next.

Figure 87: ACP Sysmgmt Configuration - Queue screen

Table 18: ACP sysmgmt configuration - queue fields


ValidateLowWaterMark (100) Low watermark from validate queue 140

RevalidateLowWaterMark (100) Low watermark from revalidate queue 140

PointLookAhead (1) determines how many pointing users can be supported by the same pair. 2 - the IRU receives one measurement every two measurement cycles.

1

PointingScalingQueWidth (1) Scaling factor for pointing queue 1

ValidateScalingQueWidth (1) Scaling factor for validate queue 1

RevalidateScalingQueWidth (1) Scaling factor for revalidate queue 1

PointingTimeOut (300) Max. pointing time (in seconds) allowed before re-queuing

600 (10 minutes)


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33. ACP Server software installation is complete. Click Finish to restart the computer.

Enabling the Timing Unit for ACP operation

Use this procedure to configure the NOC Timing Unit parameters to operate with the ACP Server.

1. Open the Timing Unit Configuration and Statistics Viewer using the Timing Unit GUI.

2. From the DPC Timing Unit menu tree, expand the Configuration and TU selections in order to highlight SFNP as shown in Figure 89.

3. Change the No ACP Required parameter to 2.The following values are applicable for the No ACP Required parameter. 0 = Manual ACP mode1 = No ACP mode 2 = Automatic ACP mode

Figure 88: InstallShield Wizard Complete screen


4. Display the Services list by selecting Start→Control Panel→Administrative Tools→Services and Applications. Highlight the DPC Timing Unit. Click the → button to start the service.

Figure 89: Timing Unit Configuration and Statistics Viewer screen

Note: This restart will disrupt network traffic processing.


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5. The Service Control screen indicates the progress of the Timing Unit service startup.

6. When finished, the DPC Timing Unit service should appear in the services list as running.

Figure 90: Services screen

Figure 91: Service Control screen


7. Open the DNCC GUI and select the Is ACP Enabled? entry as shown in the figure. Change this value to 1 and close the DNCC GUI.

8. After changing the value, restart the DNCC Timing Unit service.

Figure 92: DNCC available screen


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Configuring the calibration remote terminal

Use this procedure to configure the DW6000 remote terminal as the ACP system calibration remote.

1. Verify the DW6000 remote terminal power is ON.2. Use an Ethernet cable to connect the DW6000 LAN port to a

PC or the ACP Server. Note that the DW6000 comes configured as a DHCP server. If you use a PC to configure the calibration remote, ensure your PC network interface card is set up to automatically obtain a DHCP address from the DW6000.

3. From the PC or ACP Server, telnet to the DW6000 using the IP address 192.168.0.1 1953. If a static IP address was used for the DW6000, telnet to that address using the same 1953 port number.

4. When the DW6000 Installation Console window appears, press <ENTER> to display the Main Menu.

5. Type a <ENTER> to start the configuration. Enter the values from site specific data sheet you completed in Chapter 1 – for each parameter. Examples are shown in Table 19.

Table 19: Configuration values

VSAT Return Path 2

Satellite Longitude Degrees (Network-specific) 99

Satellite Hemisphere (Network-specific) (1 = West, 2 = East) 1

VSAT Longitude Degrees (Remote location-specific) 77

VSAT Longitude Minutes (Remote location-specific) 18

VSAT Longitude Hemisphere (Remote location-specific) (1 = West, 2 = East) 1

VSAT Latitude Degrees (Remote location-specific) 39

VSAT Latitude Minutes (Remote location-specific) 8

VSAT Latitude Hemisphere (Remote location-specific) (1 = West, 2 = East) 2

Satellite Channel Frequency (Remote location-specific outroute freq.) 12300x100KHz

Receive Symbol Rate (Network-specific) 30000000

Viterbi Rate – Enter n for n/n+1(Network-specific) 2

LNB Polarization (Network-specific) (1= horizontal) 0

Tx Polarization (Network-specific) 0

LNB 22KHz Switch 0

DVB Program number for user data 20500

DVB Program for DNCC data 40000

LAN 1 IP Address (Network-specific) Use default value

LAN 1 Subnet Mask (Network-specific) Use default value

Number of Static Routes in Routing Tables (Network-specific) Use default value

IP Gateway IP Address # (Network-specific) Use default value


6. Press <ENTER> to return to the Main Menu.7. Type c <ENTER> to open the Satellite Interface Stats

Menu. Record the Satellite Interface Serial Number below. Satellite Interface Serial number __________________

8. Type z <ENTER> to return to the Main Menu.9. Type rr <ENTER> to reboot the DW6000. The server

displays a Rebooting… prompt.10. After Rebooting, verify the DW6000 SQF Signal Quality

Factor (SQF) is nominal for your site. Repeat Step 3 to display the Installation Console Main Menu.

11. Type c <ENTER> to display the Satellite Interface Statistics.12. Type d <ENTER> to display the Signal Quality Factor. The

SQF value must be at least 31.13. Press <ENTER> again.14. Type z <ENTER> to return to the Main Menu.15. Type z <ENTER> to log out and close the telnet connection.16. From the ACP Server, open regedit.exe to edit the

ACP_SYS_CalibSerno parameter. This parameter is located under:

HKEY_LOCAL_MACHINE\SOFTWARE\Hughes Network Systems\DirecPC\ACP

17. Select Base as Decimal.

18. Enter the serial number of the DW6000 you recorded in Step 7. Click OK.

19. Exit the regedit application.

SDL Control Channel Multicast IP Address (Network-specific) Use default value

VSAT Management IP Address (Network-specific) Use default value

Default Gateway (meaningful for LAN Return path only) Use default value

Table 19: Configuration values (Continued)

Figure 93: Edit DWORD Value screen


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Transmitting CW signal The DW6000 should now be able to function as a calibration remote by transmitting a CW signal.

1. Open the DNCCGUI to enable the transmitter. 2. Under the General tab, select the EnableITU command and

enter the DW6000 serial number you recorded in step 7 on page 89. Set the Enableflag value to 1 as shown in Figure 94.

3. Click the Send button.4. Select SendTest from the IRU Command menu.5. Enter the DW6000 serial number again.6. Enter 8 as the Pattern value. This is the CW pattern.

Figure 94: DNCCGUI - setting Enableflag


7. Type in the center frequency (ACP registry CenterFrq value) in 100 Hz units as shown.

8. Check the Repeat every 30s box and click Send to start transmitting the CW signal.

9. Visually verify the CW co-pol signal is present on the SA1 (upper) spectrum analyzer.

10. Highlight the entry shown in the Currently Cross pol in progress window. Click the Stop button.

Figure 95: DNCCGUI - entering CenterFrq


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Chapter 5Setting up the ACP

The procedures in this chapter are intended for initial ACP installation and for recalibrating the system. Recalibration is typically required in cases where you experience significant level, transponder, or load changes. Recalibration may also be required in situations when the frequency drifts outside the spectrum analyzer measurement span range if you are not using the frequency auto-centering feature.

This chapter is covers the following topics:

• Initial ACP set up on page 93• NOC requirements on page 94• Optimizing calibration remote antenna pointing on page 96• Measuring calibration values on page 99• Calculating ACP_SYS_CopolOffset and ACP_SYS_XOffset

on page 100• Modify ACP Server registries on page 102

Initial ACP set up Use this procedure to set up the system to perform automatic ACP. The first step is to select a pair of transponders and generate a link budget.

1. From the ACP Server, select a transponder for co-polarization (co-pol) and a transponder for cross-polarization (cross-pol). Use the same frequency for both, ensuring bandwidth is available on both transponders. Typical carrier spacing used is 25 kHz between ACP frequency pairs.

2. Generate a link budget using the worst-case Transmit source (DW remote, smallest antenna, lowest power contour) into the ACP Receive Antenna. Develop the link budget using a CW signal (pointing losses/TX power from a typical link

Note: The number of pairs/frequencies are based on network throughput requirements.

Chapter 5 • Setting up the ACP 1032039-0001 Revision C 93

budget) measured in a 30 Hz (maximum) resolution bandwidth.

The result at the ACP Receive Antenna should be at least 40 dB c/n (carrier-to-noise) to permit you to make a cross-pol measurement of up to 35 dB relative to the carrier.

3. Repeat this procedure for both transponders.

NOC requirements The NOC must meet these requirements to reliably perform ACP measurements:

• The outroute spacelink must be healthy enough for the remote to accurately receive commands from the NOC in a timely manner.

• Send Test commands can be successfully sent to remotes.• The calibration remote can generate CW tones.• ACP Server software has been loaded and the server is

operating properly.

You will need a DW6000 ACP Transmit calibration remote. The calibration unit is a separate unit (typically a DW6000). A DW6000 must be used as the calibration remote in an extended Ku-band network, in systems with outroutes narrower than 5 Msps, and in systems supporting turbo-coded inroutes only.


L-band frequency inputs for each transponder are required to feed the ACP Spectrum Analyzer rack. This input can be from any antenna that meets link budget requirements. The L-band frequencies must be very stable (<1 kHz drift over 24 hours), preferably locked to the system reference clock. The levels presented to the ACP rack input must be at least -70 dBm.

Figure 96: ACP System test configuration diagram

T01470006


Optimizing calibration remote antenna pointing

This section describes how to optimize the calibration antenna performance. The major tasks are:

• Selecting the ACP Receive Antenna system.• Determining the operating points of each transponder using

the link budgets and information from the satellite vendor.• Using the test site calibration antenna, measure each

transponder and reconcile the link budget.

Use this procedure:

1. Connect the calibration antenna system to the DW6000 remote if you have not already done so. See Figure 96 on page 95.

2. Under the DNCC GUI General tab, select the EnableITU command.

3. Enter the DW6000 Satellite Interface Serial Number you recorded in step 7 on page 89.


4. Set the Enableflag value to 1 as shown in the figure below, then click the Send button.

5. Select SendTest from the IRU Command menu.6. Enter the DW6000 serial number again.7. Enter 8 as the Pattern value. Check the Repeat every 30s

box and click Send to start transmitting the CW signal.

Figure 97: DNCC available - Endableflag screen


8. Type in the center frequency (ACP registry CenterFrq value) in 100 Hz units as shown.

9. On the Co-pol transponder, peak the antenna on the transmit carrier. It should have the polarization set, cross-pol nulled. This can either be done at the NOC hub antenna (LNA coupled ports), or with the satellite vendor.

10. Once the antenna pointing is complete, record the polarization setting. Measure and record the downlink power and the absolute frequency of the transponder:

Polarization setting ______________Downlink power ________________Frequency _____________________

11. On the Cross-pol transponder, peak the antenna on the transmit carrier. It should have the polarization set, co-pol nulled. This can either be done at the NOC hub antenna (LNA coupled ports), or with the satellite vendor.

Figure 98: DNCC available - CenterFrq screen


12. Once the antenna pointing is complete, record the polarization setting. Measure and record the downlink power and the absolute frequency of the transponder:

Polarization setting ______________Downlink power ________________Frequency _____________________

13. Verify the levels recorded in Step 10 and Step 12 are within 1 dB of each other. If the levels are not within 1 dB, re-peak the side with the lower measurement and record the updated values.

14. Rotate the polarization back towards the co-pol until the downlink power on the cross-pol side is 50% of the original measured value. Verify that the co-pol measured value is also 50% of its original measured value.

Measuring calibration values

The measured values are used to determine the proper registry entries for these parameters:

• CopolNoiseFloor• XpolNoiseFloor• Noiseceiling• ITUTransmitLimit • ACP_SYS_CopolOffset• ACP_SYS_XOffset

These registry values must be changed based on the actual system measurements. The values you will need to enter into the registry are derived from these measured values.

1. Verify the CW signal is still being transmitted.2. Set the co-pol spectrum analyzer Span to 2 kHz and center

the CW on the screen. Adjust your Reference Level and dB/Div so that the peak of the CW is one graticule below the top of the screen and you can see below the noise floor. Set trace B to Max Hold so you can measure the maximum noise floor level.

Note: Level differences can be caused by different satellite transponder gain settings. If you are unable to get the values within 1 dB, consult your satellite vendor to confirm your transponder gain settings. The difference in downlink power will be used to calibrate the system later. It is also used to determine the relationship between remote measured deltas between polarizations and actual cross-pol isolation.


3. Measure the carrier peak level using the Peak search function. Record this frequency in the Measured co-pol CW (in MHz) row in Table 23 on page 109.

4. Position the spectrum analyzer Display Line near the trace B maximum level. Add 5 dB to that level and record the sum into the Noiseceiling co-pol column. Record the Reference Level setting in the CopolNoiseFloor/XpolNoiseFloor co-pol column.

5. Repeat steps 1, 3, and 4 for the cross-pol spectrum analyzer.6. Turn off the CW tone from the DNCC GUI. From the

SendTest menu, highlight the active serial number(s), and click the Stop button.

Calculating ACP_SYS_CopolOffset and ACP_SYS_XOffset

To calculate the ACP_SYS_CopolOffset and ACP_SYS_XOffset you will need the following items:

• ACP Offset Calculator version 1.5 or higher (located on the C: drive of the ACP Server)

• Satellite Delta (in MHz)• LNB LO frequency (in GHz)• Measured co-pol/cross-pol CW (in MHz) from Table 21 on

page 101• RF Receive frequency (in GHz)

Use this procedure to calculate the ACP_SYS_CopolOffset and ACP_SYS_XOffset values:

1. Launch the ACP Frequency Calculator application from DirecWeb’s Resource Library. Or, contact your Hughes principle engineer for a copy of athe application.

2. In the ACP Calculator, fill in the Satellite Delta, LNB LO, Measured co-pol CW, Measured cross-pol CW, and Rx RF Frequency as shown in the example that follows.

Note: Record this number in 1 Hz resolution. Subtract 10 dB from the measured carrier level and enter the result into the ITUTransmitLimit co-pol column in Table 4 below.

Table 20: Measured ACP calibration levels

Measurement from spectrum analyzers Co-pol value Cross-pol value

ITUTransmitLimit

Noiseceiling

CopolNoiseFloor/XpolNoiseFloor


3. Click the Submit button to calculate the co/cross-pol Offset frequencies.

4. Complete Table 21 with the calculated values.

Figure 99: Hughes ACP Offset screen

Table 21: Measured ACP calibration frequencies

Description Registry Name Value

Satellite Delta N/A

LNB LO frequency N/A

Measured co-pol CW (in MHz) N/A

Measured cross-pol CW (in MHz) N/A

Calculated co-pol offset ACP_SYS_CopolOffset

Calculated cross-pol offset ACP_SYS_XOffset

Tx RF Frequency N/A


Modify ACP Server registries

This section indicates the location of the registry entries that need to be modified.

1. On the ACP Desktop, select Start ->Run2. Enter regedit and click OK.3. Locate the registry entries in the table below and change the

values to the newly calculated values from the tables above.4. After you have modified the registry entries, close regedit.5. Restart the ACP service to invoke the changes.

Rx RF Frequency N/A

L-Band N/A

DNCC Entry/ACP RF CenterFreq

Table 21: Measured ACP calibration frequencies (Continued)

Description Registry Name Value

Table 22: ACP Server registry entries


ACP_SYS_CopolOffset From Table 21

ACP_SYS_XOffset From Table 21

ITUTransmitLimit From Table 20

Noiseceiling From Table 20

HKEY_LOCAL_MACHINE\SOFTWARE\Hughes Network Systems\DirecPC\ACP\ACPPAIR

XpolNoiseFloor From Table 20

CopolNoiseFloor From Table 20


Chapter 6Using the ACP GUI


• Startup procedure on page 103• Shutdown procedure on page 103• Using the ACPGUI program on page 104• Configuring ACP Server for manual cross-pol on page 106• Performing a manual cross-pol check on page 107

Startup procedure The ACP Server application should be configured as a Windows

2003 Server service that automatically starts upon booting. You can start or stop the ACP Server from the Services applet located at Start→Settings→Control Panel→Administrative tools.

When restarting ACP Services verify that both SNMP Emanate Services, snmpdem.exe (SNMP Emanate Master Agent) and msnsaagt.exe (SNMP Emanate Adapter for NT are running. Both of these, in addition to trapagt.exe (the trap subagent) can be checked from the Windows task manager.

• The C:\acp directory contains the ACPGUI and the log files.

• Create a shortcut to place the Acpgui.exe icon (shown below) on your desktop.

Shutdown procedure Press CTRL+C to stop the application if it was started as a console application. You can also stop ACP from the Windows Services list. Using the Windows Task Manager to stop the application can occasionally cause problems with the ACP application and should be avoided.

Figure 100: Acpgui.exe icon

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Using the ACPGUI program

The ACPGUI program starts an application used to monitor, control, and configure the ACP application. The ACPGUI (shown in Figure 101) provides tabs for these forms:

General: used for general commands/responsesConfigure: used for viewing and modifying configurationStatistics:displays running system counters

Using the General tab Use the General tab to send commands to IRUs. Select the IRU Control or Redundancy tab at the bottom of the window shown in Figure 102 to choose the type of command to send.

Figure 101: ACP GUI screen tabs

Figure 102: IRU Control tab window

Chapter 6 • Using the ACP GUI 1032039-0001 Revision C

IRU Control tab commands Following are procedures for initiating IRU control tab commands:

Validate: Enter the IRU serial number into the Serial Number field. Select Validate from drop-down list. Click Send to initiate validation for the specified serial number.

Revalidate: Enter the IRU serial number into the Serial Number field. Select Revalidate from drop-down list. Click Send to initiate Revalidation for the specified serial number.

ForceEnable: This command is used to enable a remote's transmitter based upon the serial number entered in the Serial Number field.

ForceDisable: This command is used to disable a remote's transmitter based upon the serial number entered in the Serial Number field.

Redundancy tab commands Use the Redundancy tab to enable or disable local and remote ACP Servers and monitor their operation. The LocalACP command button indicates ACP operating status. The button is disabled and an ACP Unreachable message appears if the local ACP Server is not running when it starts. Otherwise, the button is enabled and displays Go Offline or Go Online.

Figure 103: URU Control tab screen


106

Using the Configure tab When a configuration value is modified, the ACPGUI instructs the ACP Server to dynamically update the parameter and waits for an acknowledgement. If the ACP Server does not acknowledge the update, the value remains unchanged.

The ACPGUI Configure tab cannot be used to make static changes when the ACP service is not operating. Any changes must be modified through the registry directly.

IP address configuration The ACPGUI program uses dialog boxes to modify configuration values. This is the most commonly used dialog box. It displays a variable name and an edit box to enter a new IP value as shown in Figure 104.

Configuring ACP Server for manual cross-pol

Manual cross-pol can be used to verify that the remote has correct timing configured (works without receiving packets from the remote). The ACP Server is configured to run in simulation mode, which allows you to use the ACP Server to send out ACP commands without any hardware requirement.

Use this procedure to enable the ACP Server to run in simulation mode.

1. Set the registry key to 1.HKEY_LOCAL_MACHINE\SOFTWARE\Hughes Network Systems\DirecPC\ACP\simulation

Figure 104: IP address configuration window


2. Disable all the spectrum analyzers pairs in the registry.

3. Configure theHKEY_LOCAL_MACHINE\SOFTWARE\Hughes Network Systems\DirecPC\ACP\ACP_SYS_ACPMgmtIP

to be the IP address of the interface which intends to receive the network messages from the remote ACPGUI. (If IP address is configured as 127.0.0.1, only ACPGUI running in the local machine can connect to the ACP Server. If a remote ACPGUI is intended to connect to the ACP Server, the REAL IP address must be configured.)

4. Start the ACP Server. The ACP Server will be able to serve the remote GUI clients.

Performing a manual cross-pol check

Use this procedure to check the cross-pol for a remote unit.

1. From the DNCC, enable remote to transmit a CW signal.2. Use the spectrum analyzer to monitor the signal at the NOC.3. Adjust the ODU/antenna to obtain the highest level possible.4. Record this angle as the initial reference point.5. Turn the ODU left to obtain the lowest level possible.6. Record this angle.7. Turn the ODU right, past the highest point marked in step 4,

to again obtain the lowest possible level.8. Record this angle.

Figure 105: ACPGUI_Local screen


108

The final position can be calculated in the middle of the lowest point. It should be very close to the initial point.


Chapter 7Monitoring the system and statistics


• ACP result logging on page 109• ACP console output message on page 112• System monitoring on page 115

ACP result logging The ACP uses record files to report the status of pointing, validation text and revalidation attempts. An ACP record file is a plain text file with a name similar to acp2.19.2004_13-16-55.log. The name indicates the file creation time. In this example, the file was created on Feb. 19, 2004, at 1:16:55 p.m. Files can be empty or may contain multiple pointing records.

Each ACP record appears as one line in the file. The record file parameters are described in Table 23.

Table 23: ACP record file parameter format description

Parameter Description

1 Yearmonthdayhourminutesecond

2 ACP Server ID

3 ACP Server Name

4 IRU serial number

5 Installer name

6 Request type (Pointing, Validate or Revalidate)

7 Cross-pol isolation in dB

8 Isolation after rescaling to 100

9 Co-pole reading in dB

10 Cross-pol reading in dB

11 Pass fail flag

12 ACP measurement frequency

13 SQF (Signal Quality Factor) reading

14 Pointing times performed for remote

15 Region ID used. Region ID= 0 indicates the latitude and longitude are not in any special region and the general thresholds specified in the registry are used.

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A sample record looks like this:

20020711030942 3 G4R 837988 AUTO REVALIDATE 33.716 83 -58.034 -91.750 1 423250 51 1 1 391 772 1000000000.000 55555556.000

The last five fields (in italics) are new to the regional ACP sever. They indicate the region ID is 1, latitude is 39.1 degrees and the longitude is 77.2 degrees, Co-pol frequency is 1000000000.000 Hz and Cross-pol frequency is 55555556.000 Hz.

ACP statistics The Statistics display shown in Figure 106 displays detailed statistics for different portions of the ACP. Each field is described on the GUI.

16 Latitude of the dish (in 0.1 degree units)

17 Longitude of the dish (in 0.1 degree units)

18 Co-pol peak frequency in Hz

19 Cross-pol peak Frequency in Hz

Table 23: ACP record file parameter format description (Continued)

Parameter Description

Figure 106: ACP Statistics screen

Chapter 7 • Monitoring the system and statistics 1032039-0001 Revision C

Display more detailed statistics by expanding the selections in the left pane as shown in the Figure 107.

Figure 107: Detailed ACP statistics screen


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ACP console output message

Use the ACP logging tab (Figure 108) to display ACP console messages. Information such as the measurement results for each cross-polarization operation appears in the ACP Transient Log.

Pointing, Validate, Revalidate, and Calibration Test command results appear here. Figure 109 is an example of a typical transient log.

In this example:

• SN 1072187 shows the serial number of the remote terminal performing the operation.

• ACP_Pointing indicates what operation is in progress.• Pair 0 (Pair 1, Pair 2) is the spectrum analyzer pair

on which the operation is occurring.

Figure 108: ACP logging window


• Co-pol:-73.04 dBm, Xpol: -99.40 dBm shows the measured values from the co-pol and cross-pol spectrum analyzers.

• Isolation 26.36 shows the calculated isolation between the co-pol spectrum analyzer and the cross-pol spectrum analyzer.

Permanent messages appear in the ACP Permanent Log. These types of messages include:

• Initialization of the spectrum analyzer pairs • Starting of the spectrum analyzer pairs• Stopping of spectrum analyzer pairs

Figure 109: Remote command results


114

An example of these messages is shown in Figure 110.

Figure 110: Example of a permanent log file


System monitoring Type acpgui to display ACP Server statistics as shown in Figure 111.

Related configuration parameters are also located under the Configure tab.

Table 24 lists important variables for monitoring ACP Server performance.

Figure 111: ACPGUI server statistics screen

Table 24: ACP Server performance variables

Name Variable Location

udMaxPointingQueSize udMaxPointingQueSize Configure\SysMgmt\

udMaxValidateQueSize udMaxValidateQueSize Configure\SysMgmt\

udMaxRevalidateQueSize udMaxRevaildateQueSize Configure\SysMgmt\

dMaxCurPointUser dMaxCurPointUser Configure\SysMgmt\

udPointingTimeOut udpointingTimeout Configure\SysMgmt\

udMaxisolation udmaxisolation Configure\SysMgmt\

UdPointLookAhead (Determine how many pointing users one pair can accommodate)

udPointLookAhead Configure\SysMgmt\


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The ACPGUI displays several useful statistics for tracking ACP operational status. They are included in the ACPPair statistics shown in Figure 112 and described in Table 25.

Figure 112: ACPPair Statistics screen

Table 25: ACPPair statistics description


current Pointing Users curPointingUserNum Statistics\ACPPair\

current validate Users curValidateUserNum Statistics\ACPPair\

current Revalidate Users curRevalidateUserNum Statistics\ACPPair\

Total Pointing Users within one hour uldTotalPointingInCurHour Statistics\ACPPair\

Total validate users within one hour uldTotalValidateInCurHour Statistics\ACPPair\

Total Revalidate users within one hour uldTotalRevalidateInCurHour Statistics\ACPPair\

Total Failure of Pointing within one hour uldErrPointingInCurHour Statistics\ACPPair\

Total Failure of validate within one hour uldErrValidateInCurHour Statistics\ACPPair\

Total Failure of revalidate within one hour uldErrRevalidateInCurHour Statistics\ACPPair\

Total Pointing Users within one day uldTotalPointingInCurDay Statistics\ACPPair\

Total validate users within one day uldTotalValidateInCurDay Statistics\ACPPair\

Total Revalidate users within one day uldTotalRevalidateInCurDay Statistics\ACPPair\

Total Failure of Pointing within one day uldErrPointingInCurDay Statistics\ACPPair\

Total Failure of validate within one day uldErrValidateInCurDay Statistics\ACPPair\

Total Failure of Revalidate within one day uldErrRevalidateInCurDay Statistics\ACPPair\


Regional ACP Server statistics

Table 26 lists the statistics that are part of the ACPGUI in regional ACP Server release version 4.2.1. These statistics are generated for each region defined in the region configuration file, where [n] is the sequence number of the regions. ACPGUI allows you to easily determine regional information such as thresholds, region name and region ID. You can also retrieve the current statistics about the cross-pol measurements performed in this region.

Total ACP Requests UldTotalACPRequests Statistics\ACP

Good ACP Requests UldGoodACPRequests Statistics\ACP

Discarded ACP Requests UldDiscardedACPRequests Statistics\ACP

Total Active Pairs udActive Statistics\ACPPair\

Total Configured Pairs dSAPairsConfigured Statistics\ACPPair\

Total ACP Regions Defined udNumOfPolygons Statistics\ACPPair\

Table 25: ACPPair statistics description (Continued)


Note: regional ACP features are not available in ACP releases prior to version 4.2.1.

Table 26: Regional ACP Server statistics description


Region [n] : Pointing Threshold dPointing Statistics\ACPPair\

Region [n] : Validate Threshold dValidate Statistics\ACPPair\

Region [n] : Revalidate Threshold dRevalidate Statistics\ACPPair\

Region [n] : Region Identification Code dRegionID Statistics\ACPPair\

Region [n] : Region Name szRegionName Statistics\ACPPair\

Region [n] : Total Pointing Users within one hour uldTotalPointingInCurHour Statistics\ACPPair\

Region [n] : Total validate users within one hour uldTotalValidateInCurHour Statistics\ACPPair\

Region [n] : Total Revalidate users within one hour uldTotalRevalidateInCurHour

Statistics\ACPPair\

Region [n] : Total Failure of Pointing within one hour uldErrPointingInCurHour Statistics\ACPPair\

Region [n] : Total Failure of validate Region [n] : within one hour

uldErrValidateInCurHour Statistics\ACPPair\

Region [n] : Total Failure of revalidate within one hour uldErrRevalidateInCurHour Statistics\ACPPair\

Region [n] : Total Pointing Users within one day uldTotalPointingInCurDay Statistics\ACPPair\

Region [n] : Total validate users within one day uldTotalValidateInCurDay Statistics\ACPPair\

Region [n] : Total Revalidate users within one day uldTotalRevalidateInCurDay Statistics\ACPPair\

Region [n] : Total Failure of Pointing within one day uldErrPointingInCurDay Statistics\ACPPair\

Region [n] : Total Failure of validate within one day uldErrValidateInCurDay Statistics\ACPPair\

Region [n] : Total Failure of Revalidate within one day uldErrRevalidateInCurDay Statistics\ACPPair\


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Frequency auto recentering statistics

Table 27 describes the ACPGUI frequency auto-recentering statistics.

ACP trace level configuration

Use the radio buttons (Figure 113) to specify an ACP trace level. Debug logs all the available information to trace file and is useful for troubleshooting. The Error level only logs the messages with errors. Use this setting in a normal operational environment. The messages logged under Info and Warning labels fall between Debug and Error labels.

Table 27: Frequency auto-recentering statistics descriptions

Name Description Location

Number of measurement freq drifts

Number of continuous freq drifts during recent measurements (reset to 0 if no drift happens in a measurement)

Statistics\ACPPair\

Number of freq adjustments Number of frequency adjustments made for the pair

Statistics\ACPPair\

Active center frequency Current center frequency setting for this SA Statistics\GPIB\Group\SA

Active span Current span setting for this SA Statistics\GPIB\Group\SA

Figure 113: Trace level selection window


System management trace level configuration

Use the checkboxes (see Figure 114) to choose any combination of System management levels. Leave all selections blank in a normal operating environment.

Figure 114: Sysmgmt Trace selection window


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Chapter 8Using a remote GUI

This chapter provides information on configuring and using a remote ACPGUI.

Remote ACPGUI The following parameter types are used when configuring an ACPGUI client:

• ACP management configuration parameters• RemoteGUI key

Management parameters ACP management configuration parameters are located at:

[HKEY_LOCAL_MACHINE\SOFTWARE\Hughes Network Systems\DirecPC\ACP]

They are:

• ACP_SYS_ACPMgmtTCPPort = dword:PORT_NUMBER The ACP listens on this port.

• ACP_SYS_ACPMgmtIP=IP_ADDRESS The ACP listens on this IP address.

Operation At startup, the ACP launches a TCP server that will handle connection requests from up to eight ACPGUI clients. This number can be easily extended to support more simultaneous connection.

RemoteGUI key parameters A new key GUI is added to define the available ACP Server's IP addresses and port numbers. The ACPGUI can connect to the ACP Server running on a different computer. The key is located at:

[HKEY_LOCAL_MACHINE\SOFTWARE\Hughes Network Systems\DirecPC\ACP\GUI]

They are:

• ACPServerPort1 ...• ACPServerPort8=dword:PORT_NUMBER(1...8)• ACPServerIP1... ACPServerIP8=IP_ADDRESS(1...8)• ACPServerName1...• ACPServerName8=ACP_NAME(1...8)

A maximum of 8 targeted ACP Servers can be configured for use with a single ACPGUI client. The IP addresses, TCP

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ports and names are listed with indexes from 1 to 8. The ACPGUI will not process entries with indexes out of this range.

• RemoteGUI= dword:CONTROL_VALUE

This key is used to indicate whether it is ACPGUI running in the local machine or remote machine. A remote ACPGUI is the TCP client application that controls a ACP process hosted on a different machine. If this key is set to true, only the IRU panel will be left active.

• DefaultServer=dword:DEFAULT_SERVER_TO_USE

If this key is available, ACPGUI will pick this connection to use after the startup.

Operation At startup, the ACPGUI checks the default RemoteGUI key. If the key is not set, ACPGUI starts up in local mode. Then ACPGUI tries to read the DefaultServer. If the key is set, the corresponding server IP and port are retrieved. ACPGUI will try to connect to that IP address and port number. If the connection failed, ACPGUI will display a warning message.

At the run time, ACPGUI can be switched to connect to another ACP Server. In order to select a target ACP, open the File Menu and click on Select ACP as shown in Figure 115.

Figure 115: Switch ACP Server from ACPGUI

Chapter 8 • Using a remote GUI 1032039-0001 Revision C

The ACPGUI reads and displays up to 8 ACP configurations, as shown in Figure 116. Once the selection is made, the ACPGUI tries to connect using this configuration.

The ACPGUI saves the latest configuration as default server to be used at startup during the next session (after the next restart).

Figure 116: ACP Server selection dialog box

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Chapter 8 • Using a remote GUI 1032039-0001 Revision C

Chapter 9Troubleshooting


• Hardware on page 125• Using a health monitor for ACP testing on page 125• Timing problems on page 128

Hardware Use Table 28 to isolate hardware-related problems.

Using a health monitor for ACP testing

1. Right click the ANTENNA POINT icon located as a shortcut on the desktop. The Antenna Pointing (2) Properties window displays.

2. Select the Shortcut tab.3. Type /manual at the end of the text string in the Target: field.

Table 28: Troubleshooting hardware

Symptom Possible reason(s) Solution

Some spectrum analyzers do not respond when the ACP Servers program starts.

Improperly secured GPIB cables or incorrect configuration.

Verify all GPIB cables are firmly seated.

Check that the spectrum analyzer is operating properly: (1) Press the Local Control button and check if the unit goes back into remote.(2)If the problem persists, turn off the spectrum analyzer power, then turn it back on.(4) If the problem persists, disconnect the unit from the GPIB to verify that other units are working.

Spectrum analyzer appears dead and does not respond to the front panel control button.

Spectrum analyzer is hung up. The power On/Off button is not working properly.

Unplug the power cord, wait 10 seconds, and plug it back in.

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4. Navigate to the Antenna Location screen. Click Next.

Regardless of the outroute transponder used, and if the same inroute is used, the transponder frequency, relative to polarization, can be changed to test multiple spectrum

Figure 117: Antenna Pointing (2) Properties screen

Figure 118: Antenna Location screen

Chapter 9 • Troubleshooting 1032039-0001 Revision C

analyzers on a particular ACP without decommissioning a remote.

Verifying communication If the Next button does not appear, there could be an issue with the communication between the ACP Server and the Timing Unit.

• Verify that the Pointing Queue (manual pointing) or Automatic Queue (automatic pointing) reads 99. Check the Permanent Logs to verify that all SAs are started.

• Verify that the dMaxCurPointUser parameters are correct when performing automatic pointing.

Figure 119: Satellite Parameters screen

Figure 120: Receiver screen

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• Verify that isolation reads normal measurements:– If a user is pointing or validating, the isolation should be

relatively close to the ACP required measurements. – If the users are reading negative opposite to the required

value (example -36.5) then ACP has lost its timing and escalation should take place.

• Ensure proper operation of spectrum analyzer pair(s). If a spectrum analyzer pair has stopped or if one is in question, deactivate and reactivate the pair. Verify calibration measurements in the transient logs.

– The total number of SA that are active minus 1.

Timing problems For ACP HSI (Release 5.x or later) timing issues are typically cause by either LAN failure or a malfunctioning timing unit. When LAN failure is suspected, check the following components:

• LAN cable• NIC card

Chapter 9 • Troubleshooting 1032039-0001 Revision C

Appendix AList of ACP GUI and registry entries

This appendix lists the following ACP GUI keys you will use when installing the ACP Server software and their associated Windows registry values.

• ACP key on page 129• ACPPAIR key on page 134• GPIB key on page 136• GUI key on page 138• SOCKSVR key on page 139• SYSMGMT key on page 139• PAIRK key on page 135• Group1 key on page 137• Sa1 key on page 138• TimingParms key on page 140

The acp.reg registry export file included with the ACP Server setup disk provides the default registry settings needed for basic ACP operation; however, many registry keys are specific to each ACP.

Use regedit.exe to edit these registry entries.

ACP key Table 29 lists the registry keys and values used when installing ACP Server software.

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Table 29: ACP key

Registry Key ACP GUI Entry DescriptionRecommended

Value

ACP_SYS_TraceLevel usdTraceLevel Trace Level used to generate the logging• 40 = debug messages• 30 = info• 20 = warnings• 10 = errors

40 = Debug

ACP_SYS_GwID usGwID Satellite gateway ID assigned in Satellite Gateway configuration.

As per NOC Configuration Default =12

ACP_SYS_ACPMUXIP uldACPMUXIP ACP Server IP Address on the MUX LAN


ACP_SYS_DVBPacking ucDVBPack STX DVB packing flag 0

ACP_SYS_DVBPID usdDVBPID DVB PID. 400

ACP_SYS_RCMAC usRCMAC MAC address used to send ACAP message through satellite gateway.

03000101000

ACP_SYS_MasterACP bMasterACP Master ACP configuration for redundancy.

1

ACP_SYS_PrimaryACP bPrimaryACP Primary ACP configuration for redundancy. If set = 1, this server is active when both ACP Servers are present.

1

ACP_SYS_Test_TestALLOC FrameNum

ucAllocNum Testing allocation frame number used to fill in ACAP header. This is also used to fill in ACP interval number used to determine the measurement cycle. Unit is frame.

21

ACP_SYS_ShortRandomInterval uldShortRandomInterval Short Random Interval: Parameter passed with ACAP message. Unit is frames.

3000 (135 seconds)

ACP_SYS_LongRandomInterval uldLongRandomInterval Long Random Interval: Parameter passed with ACAP message. Unit is frames.

864000 (10.8 hours)

ACP_SYS_SGWMulticastIP uldSGWMcastIP SGW IP address (multicast) As per NOC Configuration

ACP_SYS_SGWUDPPort usdSGWUDPPort SGW UDP port number As per NOC Configuration

Appendix A • List of ACP GUI and registry entries 1032039-0001 Revision C

ACP_SYS_MinRevalidInterval uldMinRevalInterval Minimum interval to revalidate the remote. Unit is seconds.

2592000 – (30 days)

ACP_SYS_MaxRevalidInterval uldMaxRevalinterval Maximum interval to revalidate the remote. Unit is seconds.

7776000 – (90 days)

ACP_SYS_ACPID udsACPID ACP ID:1= primary2= redundant

1

ACP_SYS_LogFileLen uldLogMaxLen The length, in Kbytes, of each log file.

10000

ACP_SYS_CopolOffset uldCPOffsetInHz Co-pole frequency offset in Hz: System wide parameter used for all measurement pairs.

Based on total system offset. Measured to center on spectrum analyzer.

ACP_SYS_XOffset uldXOffSetInHz Cross-pol frequency offset in Hz: System wide parameter used for all measurement pairs.

Based on total system offset. Measured to center on spectrum analyzer.

ITUTransmitLimit dITUTxThreshold Transmission threshold: Value in minus. Currently threshold in the registry is –85 db. Unit is 0.1db. Either Co-pole or cross-pol must be measured above the threshold to assume the ITU is transmitting.

850

ValidMeasurementTimeInms Not in GUI The offset time used to authenticate the measurement result (in msec.) Adjust this parameter to make sure the measurement is taken when ITU transmits at its full power.

32

Simulation Not in GUI If the simulation key is configured to 1, the ACP Server will run in the simulation mode which doesn’t require any hardware.

0

Table 29: ACP key (Continued)


Value


132

PolyConfFIle Not in GUI The configuration file used to define the regions. If the key is not available, the regional ACP Server will start and work as the ACP 4.0.1 version. The format of the configuration file is described in section 4.3.2.

None. Must be created manually by the operator if regional ACP is enabled.

ACP_FAC_MinDelta2Adjust udMinDelta2Adj Minimum frequency drift in Hz to trigger a re-adjustment.

600

ACP_FAC_MaxDelta2Adjust udMaxDelta2Adj Maximum adjustment in Hz before disable a GPIB pair.

800

ACP_FAC_NumOfDriftsAllowed udNumOfDriftsAllowed Maximum drifts allowed during normal operation before triggering a calibrate to a potential re-adjust.

4

ACP_FAC_Enabled udFACEnabled Flag to disable (0) or enable (1) frequency auto recentering.

1

ACP_FAC_MaxCalibrationRetries udMaxCalibrationRetries Maximum number of retries before disabling a spectrum analyzer pair after a span-enlarged calibration fails.

10

ACP_SYS_RedPeerUDPPort usdPeerRedUDPPort UDP port of the redundant ACP (if any).

Default = 0

ACP_SYS_ACPMgmtTCPPort usdACPTCPMgmtPort Management LAN port used for ACP.

Default = 8080

ACP_SYS_RedLocalUDPPort usdLocal RedUDPPort Local port of the ACP used to communicate with the redundant peer ACP.

Default =1

ACP_SYS_ACPMgmtIP uldACPMgmtIP IP address of the ACP on the Management LAN.

Per-NOC configuration

ACP_SYS_RedPeerIP uldPeerRedIP IP address of the ACP on the Management LAN.

Default = 127.0.0.1

ACP_SYS_ACPNAME Not in GUI Unique name assigned to the ACP for differentiation between the two on the network.


AppName Not in GUI Name of the ACP application Default = ACP

AppInterval

DirName Not in GUI Directory name where the ACP application has been installed.

Default = c:\\acp



Value


Version Not in GUI ACP software version

FeatureTraceLevel

AgentTraceLevel

ResetPointingUser Not in GUI ACP periodically resets the number of active pointing users when this flag is active

Default = 1 (active)

Noiseceiling Noise Ceiling Noise floor threshold. Value is minus. Unit in 0.1 dB steps. Upper limit that the noise floor cannot exceed when performing noises calibration.

900, (-90 dBm)

ACP_SYS_CalibSerno dwCalSerialNum Serial number of the calibration remote


DisableRegionalACP Not in GUI Enables/disables Regional ACP in the network. 1 = disable, 0 = enable

Default = 1, but should be determined on an individual NOC basis



Value


134

ACPPAIR key This key contains parameters for the ACP subsystem. It has the values shown in Table 30 and a set of up five subkeys (one subkey per ACP pair).

HKEY_LOCAL_MACHINE\SOFTWARE\Hughes Network Systems\DirecPC\ACP\ACPPAIR

Table 30: ACPPAIR key

Registry Key ACP GUI Key Description Recommended Value

CalibrationIntervalInSecond uldCalibrationInteral Interval to calibrate all the spectrum analyzer pairs. Unit is seconds.

43200 (12 hours)

CalibrationLimitInDB dCalibrationDBoffset Maximum allowed power level difference of calibration carrier between co-pole and cross-pol pairs. Unit is 0.1dB

100 (10.0 dB)

NonCalibTimes dMaxNonCalibTimes Maximum allowed non-calibrated times before disabling the pair.

10

PointingIsolationPassLimit dPointingLimit The minimum isolation, co-pole, and cross-pol power level difference to pass the “pointing” test. Unit is 0.1 dB.

Based on system requirements.

ValidateIsolationPassLimit dValidateLimit The minimum isolation, co-pole, and cross-pol power level difference to pass the “Validate” test. Unit is 0.1 dB.

Based on system requirements.

RevalidateIsolationPass Limit dRevalidateLimit The minimum isolation, co-pole and cross-pol power level difference to pass the “Revalidate” test. Unit is 0.1 dB.

Based on system requirements. Recommended value = 0

NoiseDiffLimit NoiseDiffLimit Maximum allowed power level difference of noise calibration between co-pole and cross-pol pairs. Unit is 0.1 dB.

100 (10 dB)

XpolNoiseFloor Not Avail in GUI Cross-pol spectrum analyzer reference level setting. Value in minus, 1 dB steps.

60 (-60.0 dBm) This is a measured value from the spectrum analyzer. Refer to the ACP System Engineering Guidelines for additional details.


PAIRK key

HKEY_LOCAL_MACHINE\SOFTWARE\Hughes Network Systems\DirecPC\ACP\ACPPAIR\pairK

CopolNoiseFloor Not Avail in GUI Co-pol spectrum analyzer reference level setting. Value in minus, 1 dB steps.

60 (-60.0 dBm)This is a measured value from the spectrum analyzer. Refer to the ACP System Engineering Guidelines for additional details.

IgnoreRevalidateResult

IgnoreTxThresholdInCalib

Table 30: ACPPAIR key (Continued)


Table 31: PairK key


CopolSAGroup dCopolGrp Co-pole spectrum analyzer group.

As per NOC Configuration.

CopolSANumber dCopleNum Co-pole spectrum analyzer number


Cross-polSAGroup dCross-polGrp Cross-pol spectrum analyzer group


Cross-polSANumber dCross-polNum Cross-pol Spectrum analyzer number.


PAIRActive udActive Configure whether the pair is enabled or disabled.


CalibOffset dCaliboffset The desired calibration offset for this pair. This is used in the event that the IF signal into the spectrum analyzer pair cannot be adjusted to provide a Co-pol minus cross-pol difference of zero. Unit is 0.1 dB.

0

PairNoiseOffset PairNoiseOffset The noise floor difference between co-pole and cross-pol input. The noise floor calibration will check the result against this value. Default is 0.

0


136

GPIB key[HKEY_LOCAL_MACHINE\SOFTWARE\Hughes Network Systems\DirecPC\ACP\GPIB]

ResultOffset ResultOffset The cross-pol result adjustment. For example, the noise floor isolation is 9 db, and the pass/fail limit is 39 dB. If the noise floor isolation for this specific pair is 6 dB, then 3 dB compensation should be made for this pair’s cross-pol result. Default is 0 dB. Use this value with the bOffsetPlus parameter to indicate a positive (+) or negative (-) offset.

0

bOffsetPlus BOffsetPlus Sets positive (+) or negative (-) sign to the result offset value. Default is negative, i.e., 0= minus sign, 1= plus sign.

0

InputAttenuation InputAttenuation SA Pair Input Attenuation (0->75 dB, 5 dB steps)

5

Table 31: PairK key (Continued)


Table 32: GPIB key


Tracelevel cGPIBTraceLevel Trace level for GPIB module

0

MaximumErrorAllowed uldMaxGpibErrAllowed Maximum errors (except timeout) allowed before disable the spectrum analyzer pair

20

MaximumTimeoutAllowed uldMaxGpibTmoAllowed Maximum timeout incidents allowed before disable the spectrum analyzer pair

5


Group1 key[HKEY_LOCAL_MACHINE\SOFTWARE\Hughes Network Systems\DirecPC\ACP\GPIB\group1]

Three sets of parameter values can be specified to allow different types of spectrum analyzers to be used in a single ACP system. Span2, VBW2, and RBW2 are the parameters used for the Agilent model E4403B normally used for ACP system. The Span1 and Span3 parameters may be ignored unless other type of spectrum analyzers are configured.

Table 33: Group1 key


GpibActive udActive Whether the group is enabled. 1 (Hex)

Span1 dSpan Parameters (Span, VBW, and RBW) to configure the spectrum analyzer. All units are in Hz.

10000 (Hex)

VBW1 dVBW Parameter (Span, VBW, and RBW) to configure the spectrum analyzer. All units are in Hz.

A (Hex)

RBW1 dRBW Parameters (Span, VBW, and RBW) to configure the spectrum analyzer. All units are in Hz.

64 (Hex)


7d0 (Hex)

VBW2 dVBW Parameters (Span, VBW, and RBW) to configure the spectrum analyzer. All units are in Hz.

1e (Hex)


1e (Hex)


50000 (Hex)

VBW3 dVBW Parameter (Span, VBW, and RBW) to configure the spectrum analyzer. All units are in Hz.

1e (Hex)


12c (Hex)


138

Sa1 key

[HKEY_LOCAL_MACHINE\SOFTWARE\Hughes Network Systems\DirecPC\ACP\GPIB\ group1\sa1]

GUI key[HKEY_LOCAL_MACHINE\SOFTWARE\Hughes Network Systems\DirecPC\ACP\GUI]

Table 34: Sa1 key


SAActive udActive Whether the spectrum analyzer is enabled.


SAName saName Spectrum analyzer name used to match to GPIB address defined in GPIB applet in the control panel


bCross-pol bCross-pol Which polarization the spectrum analyzer is configured for. 0 = Co-pol, 1 = Cross-pol


MethodNum dCfgIdx Which set of spectrum analyzer Spanx parameters to use (see the previous table). If the spectrum analyzer is configured as co-pol, the setting is irrelevant. The Co-pol spectrum analyzer uses the setting specified in Cross-pol analyzer.

2 (Hex)

CenterFreq dFreq Center frequency in 100 Hz. If the spectrum analyzer is configured as Co-pol, the setting is irrelevant. Co-pol SA uses the setting specified in the Cross-pol analyzer.


Table 35: GUI key


ACPServerName1 Not editable in ACPGUI ACP Server name As per NOC configuration

DefaultServer Not editable in ACPGUI Default ACP Server to be used As per NOC configuration

ACPServerIP1 Not editable in ACPGUI ACP Server IP address As per NOC configuration

ACPServerPort1 Not editable in ACPGUI ACP Server port As per NOC configuration

RemoteGUI Not editable in ACPGUI Remote ACPGUI flag As per ACPGUI configuration


SOCKSVR key

[HKEY_LOCAL_MACHINE\SOFTWARE\Hughes Network Systems\DirecPC\ACP\SOCKSVR]

SYSMGMT key

[HKEY_LOCAL_MACHINE\SOFTWARE\Hughes Network Systems\DirecPC\ACP\SYSMGMT]

Table 36: SOCKSVR key


ACP_Socksvr_Port usdSockPort ACP message multicast port used on MUX LAN.

9255

ACP_Socksvr_IP uldACPServerIP IP address used to join multicast group.


Tracelevel cSockTraceLevel Socket server module trace level configuration.

2

MulticastIP uldMulticastIPAddr ACP message multicast IP address

229.9.9.255

Table 37: SYSMGMT key


TraceLevel cSYSMGMTTraceLevel Trace level configuration for system management module

0

MaxPointingQueueSize udMaxPointingQueSize Maximum allowed pointing queue size

100

MaxValidateQueueSize udMaxValidateQueSize Maximum allowed Validate queue size

200

MaxRevalidateQueueSize udMaxRevalidateQueSize Maximum allowed Revalidate queue size

200

MaxPointingUserNum dMaxCurPointUser Maximum allowed active pointing user numbers

Number of pairs minus 1

DelayedFrameNum udDelayedFrameNum Number of cycles needed to send notification message to IRU. Typically ranges between 4 and 7.

5

PointingLowWaterMark udPointingLWMark Low watermark from Pointing queue

70

ValidateLowWaterMark udValidateLWMark Low watermark from validate queue

140

RevalidateLowWaterMark udRevalidateLWMark Low watermark from revalidate queue

140


140

TimingParms key

[HKEY_LOCAL_MACHINE\SOFTWARE\Hughes Network Systems\DirecPC\ACP\TU]

PointingLookAhead udPointLookAhead 1 - determines how many pointing users can be supported by the same pair. 2 - the IRU receives one measurement every two measurement cycles.

1

PointingScalingQueWidth udPointingScaling Scaling factor for pointing queue

1

ValidatesWatchPeriod ValidateRevalidateStatsWatchPeriod

Time period over which validate/revalidate stats are observed.

12

ValidateScalingQueWidth ucValidateScaling Scaling factor for validate queue

1

RevalidateScalingQueWidth ucRevalidateScaling Scaling factor for revalidate queue

1

PointingTimeOut udPointingTimeOut Maximum allowed pointing times before re-queuing

600

Maxisolation udMaxIsolation Maximum isolation between co-pol and cross-pol


IgnoreRevalidateResult Not available in ACPGUI Always lets a revalidate measurement pass if this flag is on.

0

ACPRequestFilterOn Not available in ACPGUI Discard ACP requests that have an installer ID not equal to “self” or “auto”

0

IgnoreTxThresholdIncalib Not available in ACPGUI Ignores the configured transmission threshold if turned on.

False

Table 37: SYSMGMT key (Continued)


Table 38: TimingParms key


FrameIDMcastIP FrameIDMcastIP Frame id multicast ip address 229.19.9.20

FrameIDMcastPort FrameIDMcastPort Frame id multicast ip port 9920

FrameIDAdjustment FrameIDAdjustment Frame id adjustment 0

TimingUnitPID TimingUnitPID PID of the timing unit to receive frame ID messages from.

400


Appendix BVirus protection recommendations

This appendix discusses the following topics:

• Overview on page 141• Platform recommendations on page 142• Other recommendations on page 142• Helpful web sites on page 143

Overview Hughes service uses several Windows operating system platforms in the satellite uplink facility. Certain servers may be exposed to the public Internet. The specific platforms potentially vulnerable to hacker attacks are as follows:

• IP Gateway (IPGW)• Turbo Internet Gateway (TIGW)• Special Services Gateway (SSGW)• Dynamic Network Control Cluster (DNCC)• TurboPage Server • Web Auto-commissioning Server (WebACS)

These platforms must be protected from network security threats, such as denial of service (DoS) attacks, since the operation of the entire Hughes Two-way System relies on these Windows-based platforms. The DNCC, SSGW, IPGW and TIGW encapsulate messages using Microsoft Winsock (TCP/IP Stack). To avoid complicated network setups, these components are normally connected directly to the public Internet through the INET LAN. Therefore, these components may be vulnerable to attack since the Windows TCP/IP stack bound to these affected interfaces would respond to ARP broadcast requests from hosts in the public Internet, which would enable hackers to discover NOC platform IP addresses. One solution is to bind the DNCC INET, IP Gateway WAN and ENT interfaces to the AltaLANA packet driver, which is an Hughes proprietary Windows NIC driver that does not respond to ARP requests.

The WebACS relies on the IIS Web Server on the Windows platform and supports both terrestrial web-based as well as satellite-based auto-commissioning (SBC). When using terrestrial web-based auto-commissioning, one of the network interfaces on

Appendix B • Virus protection recommendations 1032039-0001 Revision C 141

142

the WebACS is connected to the public Internet. It is important to protect the WebACS from compromise since a hacker could potentially gain access to the Oracle database from the WebACS. Like the WebACS, one of the TurboPage Server network interfaces is also connected on the public Internet and is therefore also vulnerable to hacker attacks.

Platform recommendations

These specific recommendations apply to all Hughes NOC platforms that have network interfaces on the public Internet.

• Use Windows 2000 or above as the operating system platform (instead of Windows NT).

• Install latest virus protection software and updates. Ensure the virus protection software is continuously updated.

• Install latest service packs and security updates from Microsoft. Ensure these security patches are continually updated.

• For the WebACS, use SSL on the autocommissioning web pages that send sensitive information (such as IP Addresses, email passwords). This is configured in the WebACS from IIS and on the WebSetup software.

• Disable all non-essential TCP/UDP ports on the NIC that connects to the public Internet. These include (but are not limited to) SNMP, Remote Shell Daemon, various Windows services such as Remote Database Services (RDS), RPC, FTP Server, etc. This can be accomplished either by using a firewall and/or by specifically turning off Windows services not required for WebACS or TurboPage Server operation.

• Follow all IIS Security guidelines as documented on the Microsoft website.

• Run the Nessus system vulnerability scanner from http://www.nessus.org and take action to plug any holes identified by the scanner.

Other recommendations These measures are also strongly recommended:

• Avoid connecting systems to the Internet before hardening them.

• Do not connect test systems to the Internet with default accounts/passwords.

• Update systems when security holes are identified. • Avoid using telnet and other unencrypted protocols for

managing systems, routers, firewalls, and PKI.

Appendix B • Virus protection recommendations 1032039-0001 Revision C

• Do not give users passwords over the telephone or change user passwords in response to telephone or personal requests unless the requester can be authenticated.

• Maintain and test backups. • Avoid running unnecessary services, especially ftpd, telnet,

finger, rpc, mail, rservices.• Ensure firewalls are implemented with rules that stop

malicious or dangerous traffic – incoming or outgoing. • Implement/update virus detection software. • Educate users about what to look for and what to do when

they see a potential security problem.• Do not allow untrained, and/or uncertified people to take

responsibility for securing important systems.

Helpful web sites Please refer to these web sites for more specific information on preventing network security intrusions:

http://www.sans.org/top20

http://www.sans.org/resources/mistakes.php

http://www.sans.org/score

Appendix B • Virus protection recommendations 1032039-0001 Revision C 143

144
Appendix B • Virus protection recommendations 1032039-0001 Revision C

Appendix CConfiguring ACP timing

This appendix discusses the following topics:

• Verifying cros-pol interference on page 145• Configuring the FrameIDAdjustment parameter on page 145• Configuring the DelayFrameNumber parameter on page 146

Verifying cros-pol interference

Two timing-related parameters help control when ACP takes its measurement of a CW transmitted by a terminal, for the purposes of verifying the cross-pol interference is minimized and acceptable.

• FrameIDAdjustment• DelayFrameNumber

If these parameters are misconfigured, ACP may trigger the local spectrum analyzers to take a measurement outside the window where the terminal is transmitting its CW, causing the ACP to register no signal and fail the validation procedure. The parameters are affected by the propagation delay from the terminal to the NOC, by congestion in the SGW delivering packets to the terminal's outroute, and by congestion on the Mux LAN where timing signals are received by the ACP.

Configuring the FrameIDAdjustment parameter

The FrameIDAdjustment parameter specifies an offset from the frame number received on the Mux LAN to correct for congestion on that segment. As the multicast timing signals are received, the frame number is adjusted by the value of FrameIDAdjustment. Currently this parameter has a minimum value of 0 frames. Only positive adjustments can be made. As congestion on the Mux LAN increases, and the frame number packets are delayed, this parameter may increase to account for the actual frame number when the packet is received. However, there is a significant margin available given that the CW is transmitted for 23 frames, and congestion on the Mux LAN would rarely result in even a single frame of additional latency on the timing packets. The test procedure for determining an appropriate value for this parameter is as follows:

Appendix C • Configuring ACP timing 1032039-0001 Revision C 145

146

1. Attach an oscilloscope to two inputs: the trigger signal from the ACP GPIB, which triggers the spectrum analyzers to begin their sweep, and the TX signal of a DW6000 terminal that performs ACP validation and pulls high when the terminal is transmitting its CW.This coordinates the terminal transmit and the triggering of the spectrum analyzers to capture the wave.

2. Verify that the oscilloscope indicates the relative time difference between the terminal beginning transmission of its CW and ACP triggering the measurement of that burst.However, this does not account for the propagation delay, since measurements are being taken from opposite sides of the satellite network.

3. Set the parameter value such that the relative time difference between T0 (the terminal's transmission of a CW) and T1 (the time that the ACP GPIB triggers the spectrum analyzers), corresponds to an average one-way satellite propagation delay.

The parameter value selected should ensure that on average, as much of the CW is captured by the spectrum analyzers as possible. Because the increment is 1 frame, or 45ms, a perfect setting does not exist. However, because propagation delay varies based upon geographic location (and, effectively, the quality of the ranging performed by the terminal), there is always some variance. Properly set, the spectrum analyzers should capture 90% of the CW, which is sufficient.

Configuring the DelayFrameNumber parameter

The DelayFrameNumber parameter specifies the number of frames in the future that the ACP will request a terminal to transmit its CW. By design, the setting does not affect the relative timing between the terminal's transmission and the ACP's measurement. It does affect when in absolute time the transmission and measurement occurs. The value selected must ensure that the command from ACP reaches the terminal with sufficient time for the terminal to stop traffic and transmit its CW before the specified frame arrives. For example, if the value is set to 2 frames. By the time the ACP sends its message, the SGW forwards it over the outroute and the terminal receives and

Note: Using this procedure in the Hughes development lab, it was determined that a value of 1 or 2 frames is acceptable, though a larger sample with terminals in more diverse locations would be useful in determining whether 1 or 2 is closer to an ideal value for a system with terminals across the country.

Appendix C • Configuring ACP timing 1032039-0001 Revision C

processes the command, the frame during which the ACP expects to measure the CW has already passed. In this instance, the ACP has already triggered the spectrum analyzers, which do not capture any signal. Afterwards, the terminal may transmit its CW with no listeners on the other end, and validation fails.

The analytical exercise for calculating the ideal value includes accounting for propagation delay on the outroute, including not only RF delay, but also any congestion on the LAN segments or SGW serving the outroute, which may delay the reception of the command by the terminal. Through operations experience, this value has been raised from its original default value of 4 frames, to 5 frames across the National NOC, which has greatly improved the success rate. In an unloaded system, it is likely that a lower value would be acceptable. The DelayedFrameNumber is used by the ACP as a multiplier of another parameter configured by the operator. The actual formula used to determine the future frame number is:

usdFrameNum = usdFrameNum + (ucAllocNum + 1) * (udDelayedFrameNum + 1)

Where the following applies,

• usdFrameNum is the future frame number the remote uses to send the CW

• usdFrameNum is the current frame number adjusted with FrameIDAdjustment (configured by operator, see above explanation)

• ucAllocNum is the ACP_SYS_TestALLOCFrameNum (configured by the operator)

• udDelayedFrameNum is the DelayedFrameNum (configured by the operator)

If a significant number of ACP validations fail with no signal received by the spectrum analyzers, this parameter may require modification. The same test procedure and setup described earlier may be used to determine whether this parameter is improperly set.

If the value is too low, the oscilloscope may indicate a large relative time difference, with the spectrum analyzer pass occurring well before the terminal's CW is sent. Or, it may show the spectrum analyzer pass occurring without the terminal ever sending its burst. Increase the value and recheck the oscilloscope to ensure that the events occur in the proper relative time.

Appendix C • Configuring ACP timing 1032039-0001 Revision C 147

148
Appendix C • Configuring ACP timing 1032039-0001 Revision C

Acronyms and abbreviations

A

ac – alternating current

ACAP – ACP Command/Acknowledgement

ACP – Automatic Cross-Polarization

ANSI – American National Standards Institute

ARP – Address Resolution Protocol

B

BOM – bill of materials

C

CE – compliant disconnect device ,

cm – centimeter

CW – continuous wave

D

dB – decibel

dBm – decibel(s) per meter

DNCC – Dynamic Network Control Cluster ,

DoS – denial of service

DVB – Digital Video Broadcast

F

FTP – File Transfer Protocol

G

GHz – gigahertz ,

GPIB – General Purpose Interface Bus

GPS – Global Positioning System

GUI – Graphical User Interface

H

Hughes

Hz – hertz

I

ID – Identification

IFSS-TC – IF Subsystem-Turbo Code

IP – Internet Protocol

IPGW – IP Gateway

IRU – inertial reference unit

K

kg – kilograms

kHz – kilohertz

L

LAN – Local Area Network

LDU – L-Band Distribution Unit

LNA – low noise amplifier

LNB – low noise block ,

M

MGMT – management

MHz – Megahertz

mm – millimeter ,

Msps – megasymbol(s) per second

MUX – multiplex ,

N

NFPA – National Fire Protection Agency

• Acronyms and abbreviations 1032039-0001 Revision C 149

150

NIC – Network Interface Card

NOC – Network Operations Center

O

ODU – outdoor unit

P

PC – personal computer

PCI – peripheral component interconnect

PKI – public key infrastructure

R

RDS – Remote Database Services

S

SA – spectrum analyzer

SBC – satellite-based auto-commissioning

SDL – software download

SFNP – Superframe Numbering Protocol

SGW – Satellite Gateway

SNMP – Simple Network Management Protocol

SQF – signal quality factor

SSGW – Special Services Gateway

SSL – secured socket layer

STX – start of text

T

TCP – Transmission Control Protocol

TIGW – Turbo Internet Gateway

U

UDP – User Datagram Protocol

UL – Underwriters Laboratories

V

VSAT – very small aperture terminal

W

WAN – wide area network

WebACS – Web Auto-commissioning Server

• Acronyms and abbreviations 1032039-0001 Revision C

Index

A

ACPGwID parameter 130ID parameter 68, 131MasterACP parameter 68, 130MgmgtTCPPort parameter 132MgmtIP parameter 69, 132MgmtTCPPort parameter 69MuxIP parameter 70, 130PrimaryACP parameter 68, 130RequestFilterOn parameter 140version parameter 133

address 79Anchor bolts 17, 34, 35

B

bCross-pol parameter 79, 138box 106Bushings 39, 40

C

Cable routing 17, 41CalibOffset parameter 75, 135CalibrationIntervalInSeconds parameter 73CalibrationLimitInDB parameter 73, 134CalibSerno parameter 133CenterFrq parameter 79, 138Circuit breakers v, 41CopolNoiseFloor parameter 135CopolOffset parameter 72, 131CopolSAGroup parameter 74, 135CopolSANumber parameter 135CrosspolSAGroup parameter 74, 135CrosspolSANumber parameter 75

D

DelayedFrameNum parameter 82, 139DisableRegionalACP parameter 133

DNCC GUI 81, 88DVB PID parameter 68, 130DVBPacking parameter 70, 130

E

Empty weight iv, 25

F

Floor panels 20Floor support kit

earthquake 30non-earthquake 25

FrameIDMcastIP parameter 69FrameIDUDPPort parameter 69

G

Gateway ID parameter 68GPIB 76, 118, 132, 136

IP address parameter 44GpibActive parameter 77, 137ground 41Ground connection vi, 42

rack 42

I

IgnoreRevalidateResult parameter 135, 140IgnoreTxThresholdIncalib parameter 140Installation 17

earthquake area 30mounting rack to floor panel 37non-earthquake area 25pedestal rod 31, 34raised floor preparation 20, 25, 30tools required 18

ITUTransmitLimit parameter 72, 131

L

LogFileLen parameter 131

• Index 1032039-0001 Revision C 151

152

LongRandomInterval parameter 71, 130

M

MaxIsolation parameter 140PointingFrameNum parameter 82PointingQueueSize parameter 82, 139PointingUserNum parameter 139RevalidateQueueSize parameter 82, 139RevalidInterval parameter 71, 131ValidateQueueSize parameter 82, 139

MaximumErrorAllowed parameter 76, 136MaximumTimeoutAllowed parameter 76, 136MethodNum parameter 79, 138MinRevalidInterval parameter 71, 131MulticastIP parameter 81, 139

N

Noiseceiling parameter 133NoiseDiffLimit parameter 134NonCalibTimes parameter 73, 134

P

PAIRActive parameter 75, 135PairNoiseOffset parameter 135Parts inventory/inspection 25, 30Pointing

IsolationPassLimit parameter 74, 134LookAhead parameter 83, 140LowWaterMark parameter 82, 139ScalingQueWidth parameter 83, 140TimeOut parameter 83, 140

R

Rackinstallation

pedestal 31Rack shipping weight iv, 18Rack, alignment 20

front metric 24front standard 23rear metric 22rear standard 21

Rack, leveling 26, 28, 37, 39

RCMAC parameter 70, 130Rear door vi, 42RedPeerIP parameter 69, 132Regional ACP 133ResultOffset parameter 136Revalidate

IsolationPassLimit parameter 74, 134LowWaterMark parameter 83, 139ScalingQueWidth parameter 83, 140

S

SAActive parameter 79, 138SAName parameter 79, 138SANumber parameter 74SGWMcastIP parameter 70, 130SGWUDPPort parameter 70, 130ShortRandomInterval parameter 71, 130SocksvrIP parameter 81, 139SocksvrPort parameter 81, 139

T

TestAllocFrameNum parameter 71Torque values

anchor bolts 35cap screws 29, 33, 39hex nuts 35

TraceLevel parameter 76, 81, 82, 130, 139

U

Unistruts 26, 31, 33

V

ValidateIsolationPassLimit parameter 74, 134LowWaterMark parameter 83, 139ScalingQueWidth parameter 83, 140

ValidMeasurementTimeInms parameter 131ValidMeasureTimeInms parameter 72value 106

X

XOffset parameter 72, 131XpolNoiseFloor parameter 134

• Index 1032039-0001 Revision C

Documents

Automatic Cross-Polarization (ACP) Server Installation, Operation, And Troubleshooting Guide Rev.C