Overview:

 

DSU128 2-wire baseband modem is a sync/async modem that operates in full-duplex mode over 2-wire twisted pair lines. Compatible with RAD ASM-31,LOOP-U3500,TAINET DT128.

DSU128 2-wire multi-rate short range modem is a sync/async modem that operates in full-duplex mode over 2-wire twisted pair lines.At selectable data rates from 0.6Kbps to 128Kbps(or38.4Kbps in asynchronous mode).It uses digital DSP to achieve echo cancellation and high performance 2B1Q line coding technique to transmit data in full-duplex up to 5.5Km,independently of the data rate.DSU128 is compatible with RAD ASM-31,LOOP-U3500,TAINET DT128.

 

Features:

 

*Selectable data rates:0.6Kbps to 128 Kbps for sync and up to 38.4Kbps for async

*Operating range of up to 5.5Km at all specifield data rates *2B1Q line coding

*Adaptive equalizer for noise immunity and high performance over low-quality lines

*Variety of DCE interface:RS-530,V.24,V.35,V.36,X.21

*Diagnostics include local analog, local digital,and remote digital loopback test

*Front panel LEDs indicate data receive and transmit,control signal status,lookback test state,and synchronization loss

*Line interface circuitry protects against lightning and power surges

*Stand-Alone and Rack-Mount type optional

*16-slots,elaborate cooling design and two redundant power supply

*-48V DC & 220V AC power supply optional

 

Specifications:

 

Line  interface

Comply with ANSI T1.601,1988

Line type:2wire unconditioned, twisted pair

Line coding:2B1Q

Range: up to 5.5Km over 26AWG line

Level: up to 14dBM over 135ohm

Connector:RJ45

 

DCE  interface

Data rate:Synchronous:0.6,1.2,2.4,4.8,9.6,19.2,38.4,48,64,128Kbps

Asynchronous:0.6,1.2,2.4,4.8,9.6,38.4Kbps

Work mode: DCE

Data interface:V.35 or V.24/RS232

Physical connector:DB25 female jack,V.35 via external adapter

 

Power supply

AC power:220V±10%,50Hz

DC power:-48V(optional)

Power:5W

 

Environment

Temperature:0～40℃

Humidity:0～95% RH