Quick Detail
Place of Origin
HS-CODE
84-
Package & Delivery Lead Time
Delivery Lead Time
2008-03-07
Detailed Description
DSU128(2 wires 128k,ddn,baseband modem)
High-performance 2-wire full duplex base-band modem
Features:
1) A high-performance 2-wire full duplex base-band modem based on DSP and LSI technology
2) Transmission rate is up to 128kbps
3) Supports synchronous and asynchronous modes and is suitable for loop between user terminal
and interface of DDN or X.25
4) Because it has echo cancellation technique and adaptive equal technology and high- performance
2B1Q lines coding technology, it has good transmission property
5) The transmission distance in 0.5mm lines can be up to 7.5km
6) The product conforms to the regulated lines specification of ANSI15 loop back test and the lines
transmission requirement of post and telecom office of China
7) V-DSU128 is compatible with ASM-31 of RAD, LOOP-U3500, DT128 of TAINET, and so on
Detailed Product Description
Features:
1) Work mode: 2-wire private line; full duplex
2) Data transmission rates: synchronous 128K, 64K, 48K, 38.4K, 19.2K, 9.6K, 4.8K, 2.4K, 1.2K, 0.6Kbps
3) asynchronous 38.4K, 19.2K, 9.6K, 4.8K, 2.4K, 1.2K, 0.6Kbps
4) Transmission mode: synchronous or asynchronous
5) Line interface: impedance 135 ohm, physical interface RJ45, with pin 4 and pin 5 (the middle two lines)
6) Transmission features: transmission distance is up to 7.5km in the line at 0.5mm diameter and 24AWG
7) Transmission distance is up to 5.3km in the line at 0.4mm diameter and 26AWG (loop impedance <1,400 ohm)
8) Clock: internal clock, external clock and slave clock
9) Test methods: local analog loopback test, local digital loopback test and remote loopback
10) DCE interface: V.35 interface, DB25 female socket
11) V.24/RS232C RS232 interface, DB25 female socket
12) Power supply: 220V AC±10%, 50Hz; 48V DC (optional)
13) Power consumption: 5W
14) Dimensions (L x W H): 225mm x 145mm x 40mm (9" x 5.8" x 1.6")
15) Temperature: 0 ~ 40°C
16) Humidity: 0 ~ 95%
China [CN] 
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