PDH Optical Transmitter & Receiver is a photoelectricity syncretic transmission apparatus with 30/120/240/480 channels (be equal to 30/120/240/480 voice channels) . It takes GSI as core and provides E1 transmission which is suit to telecommunication. Offers 1/4/8/16 channels E1 ports, one channel RS232 and one channel service telephone. Supports full network management function. It adapts to switch group network of small capacity, loop network, mobile communication (base station) , special network, DDN and so on.

E1 character:
Line code: HDB3
Bit rate: 2. 048kbit / S + -50ppm
Standard: ITU-TG. 703
Line impedance: 75ohm (unbalance) , 120 ohm (balance)
Connector: BNC
Rs232 interface:
Working manner: <19. 2kbit / S asynchronous serial manner
Port type: RJ- 45
Single E1 PDH multiplexer,4 E1 PDH multiplexer,8 E1 PDH multiplexer,16 E1 PDH multiplexer available.

www.dailianxu.com