... ,service telephone 3.reasonable price,swift delivery PDH fiber optical multiplexer HS-OPT series PDH optical multiplexer ,which is based on super large ... management function of SNMPTechnical parameters Optical fiber interface fiber typesingle mode fiber ,muti mode fiber ,optionalwave length1310nm,1550nm,850nm,optionaloptical fiber interfaceSC,FC ,ST optionaloptical path ...