w1-12-HDSL_RAD HTU

SUBSCRIBER ACCESS MECHANISM:HDSL

“DATA NETWORKS” FOR JTO PH-II - Subscriber Access Mechanism:HDSL

RAD HTU-T1/T1L HDSL Termination Units

RAD HTU-T1/T1L HDSL Termination Units

FEATURES

HDSL NTU/LTU enabling transmission of 2048 kbps E1 and 1544kbps T1 data over unconditioned twisted-pair lines

Extends the data transmission range of up to 9.2 km (5.7 miles) with the H-RPT repeater or up to 4.8 km (3 miles) without the H-RPT repeater

Operates opposite RAD's HCD-E1, HCD-T1, HTU-2 and H-RPT

Complies with the ETSI HDSL standards

Supports unframed or framed E1 or T1

Setup, control and monitoring using front panel, ASCII terminal or SNMP-based network management station

Control of the remote unit via embedded operation channel or inband management

Timeslot priority bumping

Call-out capabilities supported via the control port

Alarm buffer holding up to 100 alarms

Remote power feeding from a modem card or standalone unit

Enhanced diagnostics include:

o Loopbacks on the HDSL lines and E1 or T1 port

o E1 or T1 and HDSL performance statistics collection

High voltage line protection in compliance with ITU K.21

Available as a standalone unit or as a card for the LRS-24 rack

BRBRAITT : March-2007 1


SPECIFICATIONS

HTU-E1 is an access unit that converts the 2048 kbps E1 or 1544kbps T1 signals into HDSL transmission format. The conversion extends the transmission range to cover 4.8 km (3.0 miles) over a 4-wire link (24 AWG/0.5 mm) without the need for repeaters or fiber optic link.

Transmission of HTU-E1 complies with the ETSI HDSL standards. Using advanced equalization, adaptive filtering, echo cancellation technology and 2B1Q line coding, the unit compensates for line impairments, bridge taps and mixed cabling. High immunity to background noise enables transmission of the multiple HDSL lines in the same physical cable.

Setup, control and monitoring of status and diagnostics information can be performed using one of the following:

o Front panel LCD with three buttons, using menu-driven management

o ASCII terminal connected directly or via a dial-up modem to the async control port using command line interpreter

o SNMP management station connected to the async control port, using Serial Link Interface Protocol (SLIP).

An embedded channel in the HDSL transmission provides both control and diagnostic capabilities from the centrally-located HTU-E1 to the remote unit at the customer's premises. The user can monitor the link and alarms, and perform online configuration, as well as diagnostic loopbacks to the remote unit.

The priority bumping feature allows the user to select the timeslot priority (high or low). In this case, if one of the lines is down, HTU-E1/HTU-E1L continues to send data over the HDSL link.

Timeslot assignment is programmable, allowing data from the E1 port to be placed into timeslots, either consecutively or alternately. In addition, the central HTU-E1 or HTU-T1 provides full user control over the timeslot allocation of the remote HTU-2/HCD-E1 or T1 data ports, or HCD-E1 or T1 sublink.

The standalone HTU-E1/PF and HTU-E1C/P card provide remote power feed for the HTU-E1L/P unit or H-RPT HDSL repeater. For the remote power feeding via the HTU-E1C/P card, a standalone power supply, LRS-PS-FEED, should be ordered separately.

HTU-E1 orT1/HTU-E1L or T1L supports call-out of the alarm conditions via its front panel control port.

HTU-E1 or HTU-T1 supports an internal SNMP agent and can be controlled by the RADview SNMP network management application, as well as by any generic SNMP station.



RAD ASM-20 Sync/Async Short Range Modem

ASM-20

RAD ASM-20 Sync/Async Short Range Modem

Features

The ASM-20 Short Range Modem operates synchronously or asynchronously (strap-selectable) at full or half duplex over unconditioned lines. It has a range of up to 23 km (14 miles) and operates at data rates from 19.2 kbps up to 256 kbps.

The use of conditioned diphase modulation (EUROCOM Std. D1) provides immunity to background noise, eliminates normal line distortion and enables efficient transmission and reception of serial data over twisted pair cable. Transmit timing is provided internally, or is derived externally from the data terminal or receive signal. Receive timing is regenerated from the data.

When set to async mode, ASM-20 performs async to sync conversion in compliance with ITU V.14 standard. Table 1 details the rates relevant for sync and async. Rates higher than 115.2 kbps are supported in sync mode only.



ASM-20 features V.54 diagnostic capabilities to perform local analog loopback, and local and remote digital loopback. The loops can be manually activated from the front panel or via control signals from the interface connector. In addition, ASM-20 incorporates a built-in Bit Error Rate Tester (BERT) to enable complete testing of both modems and the line. A front panel switch generates a pseudo-random test pattern (511 bits) according to ITU V.52, for testing end-to-end connectivity. An ERROR LED flashes when a bit error is detected.

ASM-20 is available as a desktop unit or as a card for the ASM-MN-214 modem rack. The rack can carry up to 14 ASM-20 cards and is supplied with 25-pin D-type connectors.

Optional hardware is available for mounting one or two standalone units in a 19" rack.

Specifications

Table 1. Approximate Maximum Range

Baud Rate 19 AWG(0.8 mm)

22 AWG(0.6 mm)

24 AWG(0.5 mm)

26 AWG(0.4 mm)

kbps km miles km miles km miles km miles

256 3.75 2.3 2.85 1.75 2.25 1.4 1.9 1.2

192 6.0 3.7 4.5 2.8 3.5 2.2 2.7 1.7

144 10.6 6.6 6.75 4.2 4.5 2.8 3.4 2.1

128 12.47.7 7.3 4.5 5.0 3.1 3.6 2.2

115.2* 12.8 7.8 7.65 4.75 5.25 3.3 3.8 2.5

112 12.8 8.0 8.0 5.0 5.5 3.4 4.0 2.5

96 13.0 8.1 8.3 5.15 6.0 3.7 4.15 2.6

72 15.0 9.3 9.4 5.8 6.25 3.9 4.3 2.65

64 17.6 11.0 11.0 6.8 7.5 4.6 5.3 3.3

57.6* 18.8 11.7 11.75 7.3 8.0 5.0 5.6 3.5

56 18.8 11.7 11.75 7.3 8.0 5.0 5.6 3.5

48 19.4 12.0 12.2 7.6 8.25 5.2 5.8 3.6

38.4* 20 12.5 12.5 7.8 8.5 5.3 6.0 3.7

32 20.5 12.75 12.85 8.0 8.75 5.4 6.2 3.85

28.8* 20.5 12.75 12.85 8.0 8.75 5.4 6.2 3.85

19.2** 23.0 14.0 14.0 8.7 9.75 6.0 7.0 4.3

* Asynchronous baud rates** Sync/Async

ASM-20-2/*/+/#



Short range modem, stand alone unit

ASM-20-2R/+

Short range modem card for theASM-MN-214 19" rack

* Specify power supply115 for 115 VAC230 for 230 VAC48 for -48 VDC24 for 24 VDC

+ Specify interfaceV24 for V.24/RS-232 (up to 64 kbps)V35 for V.35530 for RS-530X21 for X.21V36 for V.36/RS-449703 for G.703 Codirectional (64 kbps)UTP for built-in Ethernet bridge,10BaseT with RJ-45BNC for built-in Ethernet bridge, 10BaseT with BNC connector

Note: When using V.35 or X.21 interfaces for ASM-20-2R, the CIA adapter is required.

# Specify G.703 Codirectional connectorTB for terminal block connectorRJ for RJ-45 connector

RM-17

Hardware for mounting one or two standalone units in a 19" rack

CIA/&

Connector Interface Adapter for theASM-MN-214 19" rack

& Specify CIA connector option:V35/1 for adapting one modem card's 25-pin connector into one V.35, 34-pin connectorX21 for adapting two adjacent modem cards' 25-pin connectors to two X.21, 15-pin connectors

Application



Figure 1 - Tail-end for Digital Network Application

Figure 2 - Point-to-point Application

ASM20-2/115/530 ASM20-2/115/G.703/RJ ASM20-2/115/G703/TB ASM20-2/115/UTP ASM20-2/115/V24 ASM20-2/115/V35 ASM20-2/115/V36 ASM20-2/115/X21 ASM20-2/230/530 ASM20-2/230/G.703/RJ ASM20-2/230/G703/TB ASM20-2/230/UTP ASM20-2/230/V24 ASM20-2/230/V35 ASM20-2/230/X21 ASM20-2/24/UTP ASM20-2/48/UTP ASM20-2/48/V35 ASM20-2/48/X21 ASM20-2R/530 ASM20-2R/V24 ASM20-2R/V35 ASM20-2R/V36 ASM20-2R/X21 ASM20/115/128/V35 ASM20/115/128/X21 ASM20/115/144/530 ASM20/115/144/V35 ASM20/115/144/X21 ASM20/115/64/V24 ASM20/115/G703 ASM20/230/128/530 ASM20/230/128/V35 ASM20/230/128/X21 ASM20/230/144/530 ASM20/230/144/V24 ASM20/230/144/V35 ASM20/230/144/X21 ASM20/230/64/V24 ASM20/230/G703 ASM20R/128/RS530 ASM20R/128/V35 ASM20R/128/V35/DC ASM20R/128/X21 ASM20R/144/RS530 ASM20R/144/X21 ASM20R/64/V24



ASM20R/G703 ASM20R/G703/DC



RAD ASM-31 2-Wire Multirate Short Range Modem

ASM-31

Call us for Pre-sales and discount pricing

301-924-7400 Ext 17 or 18 for Sales Support

RAD ASM-31 2-Wire Multirate Short Range Modem

Features

The ASM-31, all-rate, sync/async short range modem, operates full duplex over 2-wire twisted pair, at selectable data rates from 1.2 kbps up to 128 kbps.

ASM-31 operates using 2B1Q line coding, and provides an operating range of up to 5.5 km (3.4 miles), independent of the data rate. An adaptive equalizer provides noise immunity and high performance over low quality lines.

Full duplex operation is achieved using the echo cancellation technique. This method entails setting one modem to be Master clock and the other to be Slave clock.

ASM-31 features diagnostic capabilities including implementation of local and remote loopbacks. The operator at either end of the line may test both modems and the line in a number of loopback modes. The loopbacks are controlled by either a manual switch or from the DTE interface.

The modem also includes a BER tester for complete end-to-end integrity testing. An error LED indicates each bit error detected.

Front panel LEDs provide indication for TD, RD, RTS and DCD, as well as Power, Local and Remote Test and Sync Loss.

Interface options include V.24/RS-232, V.35, RS-530, X.21, G.703 Codirectional, and Ethernet (see Ordering). The analog line connection is provided via an RJ-45 or a 3-port terminal block. Configuration is via internal jumpers and straps.

Line interface circuitry protects against lightning and power surges.

ASM-31 is available as a standalone unit or as a card for mounting in the ASM-MN-214, 19" rack. The rack can carry up to 14 cards.

Specifications

2-wire, all-rate short range modem

Single sync/async channel



Full duplex operation using echo cancellation

Selectable data rates:Sync: 1.2 kbps to 128 kbps Async: up to 38.4 kbps

2B1Q line coding

Operating range up to 5.5 km (3.4 miles), independent of data rate

Diagnostics include internal BERT, local and remote test

DTE interfaces:V.24/RS-232, V.35, RS-530, X.21, G.703 Codirectional, and IR-ETH

ASM-31/#/*/2-wire, standalone modem

ASM-31/R/*/2-wire modem card forASM-MN-214, 19" rack

# Specify power supply:115 for 115 VAC supply230 for 230 VAC supply48 for -48 VDC supply24 for 24 VDC supply

* Specify interface:V24 for V.24/RS-232 interfaceV35 for V.35 interfaceX21 for X.21 interface530 for RS-530 interfaceG.703 for G.703 CodirectionalUTP for built-in Ethernet/802.3 bridge with RJ-45 connectorBNC for built-in Ethernet/802.3 bridge with BNC connector

Note: When using V.35 or X.21 interface for ASM-31/R, the CIA adapter is required.

CIA/&Connector Interface Adapter for theASM-MN-214 19" rack

& Specify connector:V35/1 for adapting one modem card's 25-pin connector into one V.35, 34-pin connectorX21 for adapting two adjacent modem cards' 25-pin connectors to two X.21, 15-pin connectors

ORDERING INFO

ASM31/115/530 ASM31/115/G703/TB



ASM31/115/UTP ASM31/115/V24 ASM31/115/V35 ASM31/230/530 ASM31/230/G703/RJ ASM31/230/G703/TB ASM31/230/UTP ASM31/230/V24 ASM31/230/V35 ASM31/230/X21 ASM31/48/V24 ASM31R/530 ASM31R/G703 ASM31R/UTP ASM31R/V24 ASM31R/V35 ASM31R/X21

APPLICATION



RAD SPD-703-1 G.703 Codirectional Rate and Interface Converter



RAD SPD-703-1 G.703 Codirectional Rate and Interface Converter

FEATURES

SPD-703-1, an Advanced Rate and Interface Converter, converts between the ITU G.703 codirectional (64 kbps) interface and several standard data communication interfaces.

SPD-703-1 performs two types of conversion:

o Interface conversion: from G.703 to V.24, V.35, V.36, X.21, RS-530 or Ethernet;

o Rate conversion: from 56 or 48 to 64 kbps.

This enables connecting of a variety of DTE equipment to G.703 transmission equipment.

Operating full duplex at a data rate of 64 kbps, SPD-703-1 has a range of up to 800m (0.5 mile) from the G.703 equipment.

The converter's receive timing is the recovered clock from the G.703 signal. The transmit timing source is strap-selectable for either:

o Recovered clock from the G.703 receive signal; o Internal timing.

Two internal 16-bit elastic buffers accommodate for the difference in clocking phase.

SPD-703-1 acts as a rate adapter for connecting 48 or 56 kbps DTE equipment to a 64 kbps G.703 line. At 56 or 48 kbps, one control signal may be transferred end-to-end. Alternately, the available bandwidth can be used for a



1200 bps async secondary subchannel for connecting additional DTE equipment over the same link.

SPD-703-1 features ITU V.54 diagnostics, enabling local analog loopback and local and remote digital loopback tests. The loops are manually activated either by front panel switches or from the DTE interface (except for X.21).In addition to the loops, a front panel PATT switch generates a pseudo-random test pattern (511 bits), according to the ITU V.52 standard for testing end-to-end error free connectivity.

SPD-703-1 is available either as a standalone unit, or as a card for the ASM-MN-214 19" modem rack.

Special hardware for mounting the standalone unit in a 19" rack can be ordered separately. This hardware enables the installation of either one unit or two units side-by-side.

SPECIFICATIONS

Conversion between G.703 codirectional interface and V.24, V.35, V.36 (RS-422), X.21, RS-530 interfaces, or a built-in Ethernet bridge

Selectable data rates: 48, 56 or 64 kbps

Selectable transmit timing source

Line protection circuits

Meets G.823 jitter requirements

V.54 diagnostic (loops 2 and 3)

Internal test pattern generator

ITU V.110 compatible (conversion of 56 to 64 kbps)

Second asynchronous subchannel up to 1.2 kbps

SPD-703-1/*/#Standalone unit

SPD-703-1/R/#Card version, for the ASM-MN-214 modem rack

ASM-MN-214/*/^19" modem rack for 14 modem cards

# Specify DTE interface:530 for RS-530 interfaceV24 for V.24 interfaceV35 for V.35 interfaceV36 for V.36/RS-422 interface via an adapter cableX21 for X.21 interfaceUTP for built-in Ethernet/802.3 bridge with RJ-45 connector



BNC for built-in Ethernet/802.3 bridge with BNC connector* Specify standalone and rack main power supply:

100 for 100 VAC operation ±10%115 for 115 VAC operation ±10%230 for 230 VAC operation ±10%48 for VDC operation from -42 VDC to -60 VDC24 for VDC operation from 18 VDC to 32 VDC

^ Specify second power supply (redundant, optional):For ordering options, see main power supply.

CIA/&Connector Interface Adapterfor the ASM-MN-214 19" rack

& Specify connector:V35/1 for adapting one modem card's 25-pinconnector to one V.35, 34-pin connectorX21 for adapting two adjacent modem cards' 25-pinconnectors to two X.21, 15-pin connectors

ORDERING

SPD-703-1/115/530 SPD-703-1/115/ETH SPD-703-1/115/V24 SPD-703-1/115/V35 SPD-703-1/115/V36 SPD-703-1/115/X21 SPD-703-1/230/530 SPD-703-1/230/V24 SPD-703-1/230/V35 SPD-703-1/230/V36 SPD-703-1/230/X21 SPD-703-1/24/530 SPD-703-1/48/530 SPD-703-1/48/ETH SPD-703-1/48/V24 SPD-703-1/48/V35 SPD-703-1/48/V36 SPD-703-1/R/530 SPD-703-1/R/V24 SPD-703-1/R/V35 SPD-703-1/R/V36

APPLICATIONS





RAD FCD-2 E1 or Fractional E1 Access Unit



RAD FCD-2 E1 or Fractional E1 Access Unit

FEATURES

The FCD-2 is a Rate and Interface Converter for Fractional E1 services, accepting data at rates from 56 kbps to 1.984 Mbps. User data is placed into an E1 (CEPT) frame, using only the required number of timeslots. Synchronous data channel connection is provided over the public E1 (CEPT) network without the need for a multiplexer. Where a Fractional E1 service is available, the FCD-2 reduces payment to only the bandwidth used.

The FCD-2 is compatible with virtually all carrier provided E1 services, meeting all requirements of CCITT recommendations for G.703, G.704 and G.732. It supports both 2 or 16 frames per multiframe, with or without CRC-4. Zero suppression over the line is HDB3.

Selectable timesloting allows data to be placed into timeslots, either consecutively or as defined by the user. The data rate can be programmed for any multiple of 56 kbps or 64 kbps.

The unit can be ordered with or without an LTU (Line Terminating Unit), allowing for operation either with the integral LTU or with an external unit. Three user interfaces are available: V.35, X.21 and V.36/RS-530, with selectable clock sourcing (see Ordering). The integral LTU ensures an operating range of up to one mile, allowing the FCD-2 to be used also as a short range modem.

Multiple clock source selection ensures maximum flexibility on both the E1 and the user interfaces. The E1 line may be clocked from the recovered receive clock, or from an internal oscillator. The user interface may be set to DTE or DCE with external transmit clock, or DCE where both receive and transmit clocks are inputs.

Setup, control and monitoring of status and diagnostic information can be activated via the front panel or via a terminal or PC connected to the supervisory port.

Remote line diagnostics, alarm information, unit configuration and other control/monitoring information can be accessed remotely via dial-up modems.

Maintenance capabilities include local and remote loopbacks at various points, as well as built-in BER test for rapid identification of faults.



SPECIFICATIONS

The FCD-2 is a Rate and Interface Converter for Fractional E1 services, accepting data at rates from 56 kbps to 1.984 Mbps. User data is placed into an E1 (CEPT) frame, using only the required number of timeslots. Synchronous data channel connection is provided over the public E1 (CEPT) network without the need for a multiplexer. Where a Fractional E1 service is available, the FCD-2 reduces payment to only the bandwidth used.

The FCD-2 is compatible with virtually all carrier provided E1 services, meeting all requirements of CCITT recommendations for G.703, G.704 and G.732. It supports both 2 or 16 frames per multiframe, with or without CRC-4. Zero suppression over the line is HDB3.

Selectable timesloting allows data to be placed into timeslots, either consecutively or as defined by the user. The data rate can be programmed for any multiple of56 kbps or 64 kbps.

The unit can be ordered with or without an LTU (Line Terminating Unit), allowing for operation either with the integral LTU or with an external unit. Three user interfaces are available: V.35, X.21 and V.36/RS-530, with selectable clock sourcing (see Ordering). The integral LTU ensures an operating range of up to one mile, allowing the FCD-2 to be used also as a short range modem.

Multiple clock source selection ensures maximum flexibility on both the E1 and the user interfaces. The E1 line may be clocked from the recovered receive clock, or from an internal oscillator. The user interface may be set to DTE or DCE with external transmit clock, or DCE where both receive and transmit clocks are inputs.

Setup, control and monitoring of status and diagnostic information can be activated via the front panel or via a terminal or PC connected to the supervisory port.

Remote line diagnostics, alarm information, unit configuration and other control/monitoring information can be accessed remotely via dial-up modems.

Maintenance capabilities include local and remote loopbacks at various points, as well as built-in BER test for rapid identification of faults.

ORDERING

FCD-2-LTU CARD FCD-2/115/530 FCD-2/115/530/LTU FCD-2/115/V35 FCD-2/115/V35/LTU FCD-2/115/V36 FCD-2/115/X21 FCD-2/115/X21/LTU FCD-2/230/530/LTU



FCD-2/230/V35 FCD-2/230/V35/LTU FCD-2/230/V36 FCD-2/230/V36/LTU FCD-2/230/X21 FCD-2/230/X21/LTU

APPLICATION


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w1-12-HDSL_RAD HTU