Detailed Product Description

DSU128   2-wire full duplex base-band modem

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.

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 mountabl