1.PDH optic fiber multiplexer,PDH optical transceiver 2.three years warranty 3.reliable quality 4.MOQ:1 ... Optical fiber interface 1.fiber type : single mode fiber ,muti mode fiber ,optional2.wave length : 1310nm,1550nm,850nm,optional3.optical fiber interface : SC,FC ,ST optional4.optical path code : 1B1H5.optical module : single fiber ...