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Changzhou Bell Data Communication Equipments Co., Ltd

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Changzhou Bell Data Communication Equipments Co., Ltd

2 Wire Baseband Modem RAD ASM31:DSU128

Changzhou



A Quality Product from
Changzhou Bell Data Communication Equipments Co., Ltd [View Profile]
changzhou - China

Description :
2 Wire Baseband Modem RAD ASM31:DSU128
cenny[at]veecom.com.cn
Description

2-Wire Baseband Modem

Introduce

Features


Optional data rate:

Synchronism 600bps to 128Kbps

Asynchronism 600bps to 38.4Kbps

It has two kinds of interface at the same time: V.35 and RS232 only need switch to choose

Compatible RAD ASM31, TAINET, DT128, LOOP-U3500

To setup all of parameters with the switches on the back panel without open machine
With good transmitting specialty the longest transmitting di stance in 0.4mm lines can be 5km.

Using of high-powered 2B1Q lines coding technology ensures good quality and satisfies low cost.

According with V.54 diagnosis agreement and sustaining all kinds of methods to test loopback

Without professional working, finishing all kinds of loopback test and wrong code test only by the switches on the front panel

With protective lines to over-press lines to avoid lightning strike destroying

With two kinds of machine model: standalone and rack mountable.

Overview


V-DSU128 is a high-performance 2-wire full duplex base-band modem based on DSP and LSI technology. Its transmission rate is up to 128Kbps. It supports synchronous and asynchronous modes and is suitable for loop between user terminal and interface of DDN or X.25. Because it has echo cancellation technique and adaptive equal technology and high-performance 2B1Q lines coding technology, it has good transmission property. The transmission distance in 0.5mm lines can be up to 7.5km. The product conforms to the regulated lines specification of ANSI15 loopback test and the lines transmission requirement of post and telecom office of China .

V-DSU128 is compatible with ASM-31 of RAD, LOOP-U3500, DT128 of TAINET , and so on.

Specifications

Work mode:
2-wire private line ; full duplex

Data transmission rates:
Synchronous 128K,64K,48K,38.4K,19.2K,9.6K,4.8K, 2.4K, 1.2K,0.6Kbps

Asynchronous 38.4K,19.2K,9.6K,4.8K,2.4K,1.2K,

0.6Kbps.

Transmission mode:
Synchronous or asynchronous

Line interface:
Impedance 135 ohm, physical interface RJ45, with pin 4 and pin 5 (the middle two lines )

Transmission features:
Transmission distance is up to 7.5km in the line at 0.5mm diameter and 24AWG

Transmission distance is up to 5.3km in the line at 0.4mm diameter and 26AWG (loop impedance <1400 ohm)

Clock:
Internal clock, external clock and slave clock

Test methods:
local analog loopback, local digital loopback, remote loopback

DCE interface:
V.35 interface, DB25 female socket

V.24/RS232C RS232 interface, DB25 female socket

Power supply:
220VAC +/- 10%,50Hz;

48VDC(optional)

Power consumption:
5W

Dimension:
245mm * 215mm * 50mm

9"L*5.8"W*1.6"H

Temperature:
0oC ~40oC

Humidity:
0~95%


I'm Cenny, a sales manager of Bell Data Communication Equipments Co., Ltd , a China local manufacturer . Our products brand is VeeCOM.
Our major products series are:G.703 E1 to V.35 and ethernet Converter,Fiber optic Equipment,DSL CPE,fibre media converter,ADSL SYSTEM,PDH SDH Multiplexer,Bridge,G.SHDSL Modem,Switch router,E1 T1 equipment,wireless modem





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Changzhou Bell Data Communication Equipments Co., Ltd

Our major products series are telecom equipment:Fiber Optical equipment/G.703/E1 to V.35 and ethernet Converters/fiber Media Converter/TDM OVER IP/wireless modem/DSL CPE/ADSL SYSTEM/Modems/Switch/E1&T1 equipment



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