Telephone optical transceiver 2 pure telephone optical transceiver single mode single fiber optical transceiver PCM CD50 W02

Optical end machine 2 pure telephone single-mode fiber optic transceiver PCM voice intercom two-door audio machine CD50 W02

Optical transceiver 4 way pure telephone optical transceiver 4 door 4 way single mode single fiber PCM FC port CD50 W02

Optical transceiver 4 way pure telephone optical transceiver fiber optic transceiver single mode PCM voice intercom CD50 W02

Telephone optical terminal machine 2 way telephone plus 1 network with PCM voice intercom to single mode fiber CD50 W02

1 way telephone optical terminal machine fiber optic transceiver single mode PCM voice intercom CD50 W02

Telephone optical terminal machine 4 telephone with 1 channel network PCM voice to single mode optical transceiver CD50 W02

1 way telephone optical transceiver pcm voice to optical transceiver single multimode single fiber 20km CD05 W02

4-way telephone optical transceiver fiber optic transceiver single-mode single fiber fc 20KM CD05 W02

Telephone optical terminal machine 8 telephone optical terminal machine plus 2 network PCM voice optical transceiver CD50 W02

Telephone optical terminal machine 1 telephone optical transceiver with 1 channel network SC interface PCM voice CD50 W02

Optical transceiver 2 telephone optical transceiver plus 1 network PCM voice optical transceiver CD05 W02

Telephone optical transceiver 1 telephone optical transceiver plus 1 network PCM voice CD05 W02

2-way pure telephone optical transceiver, single-mode single-fiber optical transceiver, PCM optical transceiver, 1 pair

4-way pure telephone optical transceiver, single-mode single-fiber PCM telephone optical transceiver, 1 pair

8-channel pure telephone optical transceiver fiber optic transceiver single-mode PCM voice intercom eight-door audio machine

8-channel pure telephone optical transceiver fiber optic transceiver single-mode PCM voice intercom eight-door audio machine

Single mode single fiber 4-way telephone voice optical transceiver, high-definition PCM photoelectric converter

Single mode single fiber 4-way telephone voice optical transceiver, high-definition PCM photoelectric converter

Single mode single fiber 4-way telephone voice optical transceiver, high-definition PCM telephone photoelectric converter

Single mode single fiber 4-way telephone voice optical transceiver, high-definition PCM telephone photoelectric converter

Terminal box telephone 4-way with 1-way network telephone optical transceiver PCM voice single mode pair

1 Pair PCM 8ch Telephone+ 1ch Network Interface rx tx transmitter Fiber Optic Transmission Transceiver extender single mode 20km

1 pair PCM 2ch Telephone+ 1ch Network interface Transmitter Fiber optic transmission Extender rx tx Transceiver Single mode 20km

1 pair PCM Telephone Transmitter Fiber Extender rx tx 1ch Fiber optic transceiver SC Single mode single fiber single mode 20km

1 pair PCM Telephone Transmitter Fiber optic transmission rx tx Extender for RJ11 2ch Fiber optic transceiver Single mode 20km

1 pair PCM 1ch Telephone+1ch Network rx tx interface Transmitter Fiber Optic Transmission Transceiver Extender single mode 20km

1 Pair PCM Telephone rx tx Transmitter Fiber Optic transmission 4ch Fiber Optic Transceiver Extender for RJ11 single mode 20km

Terminal box 1 channel telephone with 1 channel network optical transceiver PCM voice round port FC single mode pair

1 pair PCM 4ch Telephone+ 1ch Network interface Transmitter Fiber Optic Transmission Extender Transceiver Single mode 20km rx tx

1 Channel RJ11 Telephone PCM Voice To Fiber Optic Transceiver Converter