Digivance LRCS

Long-Range Coverage Solution800 MHz System

Digivance™ – ADC’s Digital Advantage forImproving Wireless Capacity, Coverage andCustomer Retention

ADC, a leading solution provider for distributing andenhancing wireless capacity and coverage, now offers theDigivance™ Long-Range Coverage Solution (LRCS). Digivance LRCS improves wireless networks by extendingseamless wireless coverage from existing cell sites to hard-to-reach areas or distributing capacity from centralizedradio suites. Part of ADC’s Digivance family of digital radiofrequency (RF) transport solutions, Digivance LRCS is fullycompatible with ADC’s Digivance Indoor CoverageSolution. The Digivance family offers flexible, scalablesolutions to fit various applications from a single buildingto a campus to a large city center area and beyond.

Features:

• Flexible architecture enables macro network coverageto be distributed over individual or multiple point-to-point optical RF transport links

• Digital platform enables transition to new capabilitiessuch as free space optics links and coarse wavelengthdivision multiplexing (CWDM)

• Digital RF transport is transparent to air modulationstandards; e.g., GSM, CDMA, etc.

• Remote alarm monitoring from the network operationscenter (NOC) reduces troubleshooting time

• Local alarm networking of multiple systems formonitoring and control

Digivance™

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Digivance™ LRCS 800 MHz System

Overview

With the increasing popularity of wireless devices,subscribers expect to have coverage at any time in any place they may be. This requires serviceproviders to increase capacity, which is typicallydone by adding new cell sites. However, with citycenter areas becoming more congested and localgovernment zoning regulations increasingly morestringent, obtaining permits for new wireless cellsites is becoming nearly impossible. Extendingservice to these hard-to-reach areas can be quitechallenging. ADC’s Digivance™ LRCS is a cost-effective solution for extending or distributingcapacity from base stations to other areas thatrequire coverage.

Application

Digivance LRCS is the only long-range RF distribution solution to offer a fully digitalplatform. By using patented digital RF transporttechnology, Digivance LRCS digitizes the entiredesignated RF band, digitally transports it overfiber, and reconstructs the signal at fullbandwidth, regardless of modulation technologyor data rate. Digital RF transport allows the signalto be replicated at full dynamic range, regardlessof the fiber length, which increases the capabilityfor data throughput. As advanced high data ratebroadband services are rolled out, networks with aDigivance LRCS backbone will be ready.

Digivance LRCS offers a flexible architecture todistribute wireless capacity. Its versatility and smallsize allow service providers to quickly deploynetworks in dense urban areas where zoningrestrictions often hinder installation of basestations. Centralization of base station capacitycan also be realized using Digivance LRCS, whichallows service providers to further benefit byreducing capital expenditures and annualoperating costs. ADC's digital RF transporttechnology is also conducive to enhancements,

such as free space optical laser links instead ofphysical fiber connections and CWDM capabilities.The CWDM option allows multiple transmit andreceive paths over a single fiber cable, thusreducing annual fiber lease costs. Free spaceoptical laser links overcome fiber availability issues,as well as enable service providers a means todeploy wireless capacity in specific dense urbanareas in just days.

System Description

Digivance LRCS is an all-digital RF distributionsystem that optically transports RF signals to difficultcoverage areas such as tunnels, canyons, large openstructures such as stadiums, and congested citycenter locations. One point-to-point RF transportlink consists of a host unit, remote unit, andelement management software.

Digivance LRCS Host Unit is typically rack-mountedat the base transceiver station (BTS) site or co-located with other host units at a centralized radiosuite. The RF signal is transported digitally over twofiber optic cables that connect the host and remoteunits. Optionally, the wave division multiplexing(WDM) feature allows transport over a single fiber.In either application, the link can also beconfigured for diversity operation, which requiresan additional fiber. The Digivance LRCS RemoteUnit is positioned near the area requiring coverage(up to 20 kilometers from the host unit) andinterfaces with an antenna to distribute the RFsignal. The distance between the Digivance LRCSHost Unit and Remote Unit is limited only by timedelay requirements of system modulationstandards; i.e., GSM, CDMA, etc.

Multiple Digivance LRCS links can be readilydeployed as a system to distribute capacity andprovide coverage to larger areas, such as an entirecity center area. The Digivance Element ManagerSystem (EMS) provides operational and maintenancecapabilities for up to 24 Digivance LRCS links.

Base Transceiver Station Site

Digivance LRCS Host Units

Digivance LRCS Remote Unit

Host

Host

Digivance LRCS Remote Unit

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Element Management System

Digivance™ EMS provides operational andmaintenance capability for the Digivance LRCS.Digivance EMS consists of a personal computer(PC) using a Windows® operating system, ADC-furnished Java-based software package, an ASCII-based RS-232 capable terminal, and RS-232 cables.

Digivance EMS can simultaneously monitor anetwork of Digivance LRCS links by daisy-chainingthe alarm interfaces of up to 24 Digivance LRCS

Host Units. Each of the host units are connectedthrough a controller area network bus, and the PCcan be connected to any of the host units.Digivance EMS has the ability to downloadsoftware, change parameters, and monitor alarms.It also provides three levels of alarms: softwarereporting, LEDs, and external contacts. DigivanceEMS, with a laptop PC, can also be used for fieldtest and troubleshooting at each Digivance LRCSRemote Unit. In addition, off-site functionality isaccomplished through a terminal at the (NOC).

NOC ASCII Terminal

Host Site

Host Unit 1

Host Unit 2

Host Unit 24

Digivance EMS

Up to 20 km or more

RemoteUnit 1

RemoteUnit 2

RemoteUnit 24

Up to 20 km or more

Up to 20 km or more

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Host Site Capabilities

Digivance™ EMS performs the following functionsat the host site:

• Provides real-time information regarding faults

• Displays various system level values (voltages, RF, power, etc.)

• Records and generates history reports with time and date stamps

• Adjusts performance related parameters ofthe host unit and remote unit

• Permits placement of host unit and remoteunit into standby mode

• Allows download of new software versionsto the host unit and remote units


The Digivance EMS software provides a windoweddisplay of detailed information for the operator.

The output at the NOC is provided in a simplified text format.

Off-Site Capabilities

Digivance EMS performs the following functions atoff-site locations such as the NOC:

• Provides real-time information regarding faults

• Displays various system level values (voltages,RF, power, etc.)

• Adjusts performance-related parameters of the host unit and remote unit

• Permits placement of host unit and remote unit into standby mode

The Digivance EMS provides real-time data to theoperator at the NOC through an ASCII-based, RS-232-capable terminal. The ASCII terminal at the NOC communicates to the PC at the host sitethrough an RS-232 port.

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The rack-mountable Digivance LRCS Host Unit istypically located at a remote BTS or a facilitybuilding housing a suite of base stations near thearea requiring coverage. On the forward path, thehost unit digitizes the designated RF band anddigitally transports it over singlemode fiber to theremote unit. On the reverse path, the host unitreceives the digitized signal and converts it to RF.The host unit also collects alarm information fromthe remote unit.

For system deployments, multiple links can benetworked together at the same BTS site. Hostunits can be daisy-chained together to allowmonitoring and control of multiple links from asingle user interface. Local monitoring and controlfunctions can be performed either directly throughthe host unit or via a PC.

Remote alarm monitoring and control of theDigivance LRCS system can also be performed froman off-site location or NOC. Communications to the NOC can be performed using a PC with a standard physical layer protocol.

In addition to sending alarm notifications toDigivance EMS through software, the DigivanceLRCS Host Unit also features front panel alarmreporting. LEDs on the front panel of the host unitwill change color depending on the status of theunit. LED displays provide information regardingthe following items:

• power • mode of system (active/standby)• indicate which unit is at fault• RF conditions

Furthermore, alarm contact closures provide majorand minor alarms. The host unit has two alarmcontacts that either report system operation isseriously affected (major alarm) or system operationis degraded (minor alarm). The host unit operateson DC power.

Remote Unit

The Digivance LRCS Remote Unit is an outdoorcabinet that is either pole-mounted, floor-mounted, or mounted on the side of a building.On the forward path, the remote unit receives thedigitized signal from the host unit and converts thesignal back into RF to be distributed via anexternally mounted antenna. On the reverse path,the remote unit digitizes the designated RF bandand digitally transports it over singlemode fiber tothe host unit. In addition to sending alarmnotifications to the Digivance EMS throughsoftware, the Digivance LRCS Remote Unit alsofeatures front panel alarm reporting. LEDs on thefront panel of the remote unit will change colordepending on the status of the unit. LED displaysprovide information regarding the following items:

• power • mode of system (active/standby)• indicate which unit is at fault• RF conditions• power amplifier fault• antenna fault

Furthermore, alarm contact closures provide a finallevel of alarming capability at the remote unit.Major and minor alarms are reported throughthese contact alarm closures. The remote unit ispowered by an AC source.


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RF SPECIFICATIONSForward Path

System Bandwidth: 12.5 MHz(Digitization bandwidth and duplexerbandwidth are ≥12.5 MHz)

Frequency RangeA Band Version: 869 to 880 MHz and 890 to 891.5 MHzB Band Version: 880 to 890 MHz and 891.5 to 894 MHz

Gain: 85 dBOut-of-band Rejection: -40 dB, bandwidth 30 MHzPropagation Delay: 2 microseconds (excluding fiber)Dynamic Range: -60 dBcPeak to Average Ratio: 10 dBIntermodulation: -55 dBc at remote output (two tone)Maximum RF Input Level: -10 dBm composite at maximum attenuationTX Insertion Loss: 2.5 dBOutput Power: 50 watt at PA output; 30 watt at antenna portError Vector Magnitude (EVM)

TDMA/EDGE: 4%GSM: 4ºCDMA: 0.97 rho factor

Reverse PathSystem Bandwidth: 12.5 MHz

(Digitization bandwidth and duplexerbandwidth are ≥12.5 MHz)

Frequency RangeA Band Version: 824 to 835 MHz and 845 to 846.5 MHzB Band Version: 835 to 845 MHz and 846.5 to 849 MHz

Gain: 30 dBOut-of-band Rejection: -40 dB, bandwidth 30 MHzPropagation Delay: 2 microseconds (excluding fiber)Intermodulation: -62 dBcNoise Figure: 8 dBMaximum RF Output Level: -10 dBm composite at maximum gainDynamic Range (blocking): 70 dBError Vector Magnitude (EVM)

TDMA/EDGE: 4%GSM: 4ºCDMA: 0.97 rho factor

Typical Specifications

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OPTICAL SPECIFICATIONSFiber Type: Singlemode, 9/125 µmFibers Required

Non-diversity: 1 with WDM; 2 without WDMDiversity: 2 with WDM; 3 without WDM

Forward Path Wavelength: 1550 ±20 nmReverse Path Wavelength: 1310 ±20 nmOptical Budget: 25 dB

POWER SPECIFICATIONSHost Unit Power Source: 21 to 60 Vdc, floatingHost Unit Input Current: 2A @ 24 VdcRemote Unit Power Source: 90 to 265 VAC; 47 to 63 HzRemote Unit Input Current: 9A @ 120 VACRemote Unit with Battery

Backup (optional): 1 hour

SOFTWARE SPECIFICATIONSMinimum Equipment Required: PC with Windows® operating system

(Windows® 95, 98, NT, 2000)• Pentium® processor-based computer• Disk space requirements vary on the configuration

– 128 MB minimum for Digivance EMS software application– Remaining hard drive configuration is dependent on data

logging requirements. The Digivance EMS software logs data onto the hard drive until the user exits the EMS application.

• CD-ROM drive• Available communications port (RS-232)Host unit daisy chain cable (accessory item)Host unit PC cable (accessory item)ASCII terminal at NOC

PHYSICALHost Unit

Dimensions (HxWxD): 3.5" x 19" x 15.8" (8.9 x 48.3 x 40.1 cm)Weight: 18 lbs. (8 kg)Color: Putty WhiteMounting Options: 19" or 23" rack

Remote UnitDimensions (HxWxD): 28.5" x 17.3" x 24" (72.4 x 43.4 x 61 cm)Weight: 120 lbs. (54 kg) without battery backupColor: Putty WhiteRemote Unit Enclosure: NEMA 3RMounting Options: Wall mount; optional pole mount or pedestal

mount brackets available

*Windows®, Windows® 95, Windows® 98, Windows NT® and Windows® 2000 are registered trademarks of MicrosoftCorporation in the United States and/or other countries.

*Pentium® is a registered trademark of Intel Corporation or its subsidiaries in the United States and other countries.

Typical Specifications

ADC Telecommunications, Inc., P.O. Box 1101, Minneapolis, Minnesota USA 55440-1101Specifications published here are current as of the date of publication of this document. Because we are continuously improving our products, ADCreserves the right to change specifications without prior notice. At any time, you may verify product specifications by contacting our headquartersoffice in Minneapolis. ADC Telecommunications, Inc. views its patent portfolio as an important corporate asset and vigorously enforces its patents.Products or features contained herein may be covered by one or more U.S. or foreign patents. An Equal Opportunity Employer

100591 6/02 Original © 2002 ADC Telecommunications, Inc. All Rights Reserved

Web Site: www.adc.comFrom North America, Call Toll Free: 1-800-366-3891 • Outside of North America: +1-952-938-8080 Fax: +1-952-917-3237For a complete listing of ADC's global sales office locations, please refer to our web site.


Description

Digivance LRCS System (includes Host Unit and wall-mount Remote Unit)

800 MHz A-Band System, 50 Watt, non-diversity 800 MHz A-Band System, 50 Watt, diversity 800 MHz B-Band System, 50 Watt, non-diversity 800 MHz B-Band System, 50 Watt, diversity

Digivance LRCS Spare Modules

Host Unit, 800 MHz, non-diversity Host Unit, 800 MHz, diversity Remote Unit Power Amplifier Module, 800 MHz, 50 Watt Remote Unit Spectrum Transport Module, 800 MHz, A-Band, non-diversity Remote Unit Spectrum Transport Module, 800 MHz, A-Band, diversity Remote Unit Spectrum Transport Module, 800 MHz, B-Band, non-diversity Remote Unit Spectrum Transport Module, 800 MHz, B-Band, diversity

Catalog Number

DGVL-112100SYSDGVL-112110SYSDGVL-122100SYSDGVL-122110SYS

DGVL-102000HUDGVL-102010HUDGVL-102000LPADGVL-112000STMDGVL-112101STMDGVL-122000STMDGVL-122010STM

O r d e r i n g I n f o r m a t i o n

CONNECTORSOptical Connectors: SCRF Connectors: N female

ENVIRONMENTALHost Unit

TemperatureOperating: 0ºC to 50ºC (32ºF to 122ºF)Storage: -40ºC to 70ºC (-40ºF to 158ºF)

Remote UnitTemperature

Operating: -30ºC to 50ºC (-22ºF to 122ºF)Storage: -40ºC to 70ºC (-40ºF to 158ºF)

Humidity: 10% to 90%, non-condensingLightning Protection: 20kA IEC 1000-4-5 8/20 µs waveform

APPROVALSRemote Unit Enclosure

UL/CUL Compliance: UL 50FCC Acceptance: Part 22Industry Canada: RSS-131

QUALITY Manufactured under ISO 9001 quality system

Documents

Digivance LRCS