-
Optical fiber transmission design of elevator intercom system
elevator five-party intercom transceiver,elevator five-party intercom gateway,elevator intercom optical transceiver,Intercom Optical Transceiver
-
Application of Raytrans ultra-far chain network optical terminal machine in tunnel construction
telephone optical mutliplexer,fxs multiplexer,multi-service optical multiplexer,multi-service multiplexer
-
IDM MCC200 tunnel three defense IP telephone and cloud scheduling system
SIP Broadcasting Gateway,sip intercom terminal,sip intercom equipment,sip phone,IP phone
-
PCM device star network application scheme
PCM multiplexer,Integrated service access equipment,PCM integrated multiplexing equipment,multi service access equipment,integrated service cross multiplexing equipment,E1 multiplexer
-
SDH device ring network application scheme
SDH-MSTP Multiplexer,STM-16 SDH Multiplexer,Pdh-Sdh Multiplexer,SDH multiplexers,Multi-service SDH/MSTP multiplexer,SDH/MSTP multiplexer,SDH Multiservice Access Multiplexer,STM-4 SDH MSTP Multiplexer,Multi-Service Transport Platform
-
IP elevator five-way intercom communication based on SIP
elevator five-party intercom sip gateway,elevator five-party intercom transceiver,elevator five-party intercom gateway,elevator intercom optical transceiver,Intercom Optical Transceiver
86-18710178699 
xufei@rdtcom.com