... multiplexer 2.RS232,1 channel service telephone,100M ethernet 3.three years warranty 4.MOQ:1 pair PDH optical ... transceiver 4/8/16E1 PDH optical multiplexer, PDH MuxHS-OPT series PDH optical transceiver ,which is based ... single fiber ,duplex fiber ,optional6.receiving sensitivity : superior to -36dBm7.optical power output : -8 dBm ~-15dBmRS232 interface 1.working pattern : < ...