Dsu128(2 wires 128k, ddn, baseband modem) Detailed selling lead description 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 1) power supply: 220v acf+10%, 50hz; 48v dc (optional) 2) power consumption: 5w 3) dimensions (l x w h): 225mm x 145mm x 40mm (9" x 5.8" x 1.6") 4) temperature: 0 ~ 40fpc 5) humidity: 0 ~ 95%