Fiber modem, generally refers converts the optical Ethernet signal into another protocol signal transmitter and receiver. fiber modem is commonly known, has the role of a modem.fiber modem also known as single-port Optical, is designed for specific user environment product, which uses a single pair of fibers or single E1 V.35 or 10BaseT single point type optical transmission terminal equipment. The device as a local network can relay transmission equipment for fiber optic base station transmission equipment and leased line terminal equipment. For multi-port Optical generally "optical multiplexer "on the single-port Optical generally used in the client, work similar to conventional WAN Line (circuit) networking baseband MODEM use, and have referred to as "fibr MODEM",," optical modem. "Some people often mistakenly fiber optic transceiver or photoelectric conversion as fiber modem, in fact, this is a mistake call .
Structure and function for Zhejiang Ebang Communication fiber modem
adopted large-scale integrated chip, simple circuit, low power consumption, high reliability, with full alert status indication and improve network management capabilities
Work Principle for Zhejiang Ebang Communication fiber modem
Fiber modem is one device similar to the base-band MODEM (digital modem), and difference from baseband MODEM,the access line is an optical signal. Photoelectric conversion for WAN signal conversion and interface protocols, access routers, wide area network access. Optical electrical converter is a photoelectric conversion signal, but only signal conversion, there is no interface protocol conversions.
Difference between optical electrical converter and fiber modem
The difference between the optical electrical converter and fiber modemis as below:
optical electrical converters are used to convert LAN optical signals, and merely signal conversion, there is no interface protocol conversions. fiber modem for converting WAN photoelectric signal conversion and interface protocols, protocol converters are mainly E1 to V.35 and E1 to Ethernet types. In fact, with the development of network technology, the concept of the photoelectric converter and fiber modem become increasingly blurred, the recent unification of the two can be basically the same kind of device, the photoelectric conversion fiber modem has become generic.
The application for Zhejiang Ebang Communication fiber modem
it is said Ethernet optical modem, mainly used in long distance, more than 20KM, the case of transit through the middle need SDH / PDH optical transmission equipment and other applications .for fiber modem general rate is packaged in a 2M circuit, the difference between optical transceiver and fiber modem is the speed, fiber modem is 2M, optical transceiver is 100M . general scenarios: Customer - Ethernet optical modem - E1 modem -2M optical cable -E1 cable - SDH Optical - other a bureau -PDH SDH Optical- Ethernet to E1rn - client devices (Ethernet switches or computers, etc.) Of course, there is V.35, V.24 optical modem, RS-232 optical modem, etc., applications and more similar.