Nowadays, with the development of domestic communication networks, the monitoring range of TV optical transceiver applications is becoming wider and wider. In the monitoring fields of highways, banks, electric power, telecommunications, etc., remote transmission of video signals is required. At present, the main solution is to use optical transceivers to convert video signals into digital signals for transmission through optical fibers. So, what is a TV optical transceiver? How are TV optical transceivers classified? Next, let's follow the editor of Feichang Technology to learn more about it!
What is a TV optical transceiver?
The TV optical transceiver is a device that converts the traditional TV signal into an optical signal and transmits it on the optical fiber. It is different from the traditional telephone transmission line. The traditional TV signal transmits the analog signal through the video cable, and the optical transceiver is converted into After the optical signal is transmitted, it can make the transmission distance of the TV signal longer, and the transmission rate can be greatly improved, and it can also be accompanied by other services, such as: Ethernet, E1, etc. It is suitable for IP supermarkets, living quarters, Internet cafes, chat bars and other units. The TV optical transceiver can transmit multiple service interfaces, including FXO relay, FXS users (support incoming calls and reverse polarity signals), two-four-wire audio, two-four-wire E/M, magnet interface, RS232/485/422, Ethernet, E1 Etc., multiple services can be transmitted at the same time, comprehensively solving the needs of multiple services for customers.
TV Optical Multiplexer Application Classification
According to the application field, the current optical multiplexer equipment has the following types:
1. Surveillance TV Optical Multiplexer: used to transmit video signals (such as the output of ordinary cameras is the video signal), and at the same time can assist in the transmission of audio, control data, switch quantity Signals and Ethernet signals are mainly used in highways, urban traffic, community security, and various fields that need to be monitored;
2. Television optical transceivers for radio and television: used to transmit radio frequency signals, and the transceivers are not point-to-point transmissions. It is directly used in the optical path. Branch, can be a transmitter to multiple receivers, mainly used in the field of optical transmission of cable TV;
3. Telecom optical television transceiver: each basic channel of the terminal is 2M, also commonly known as 2M terminal, each 2M channel can Transmit 30 telephones or transmit 2M bandwidth network signals. It is only a fixed bandwidth channel. Its use mainly depends on the supporting equipment connected to the optical transceiver. The supported protocol is the G.703 protocol, which is mainly used in fixed bandwidth telecom optical communications field.
4. TV optical transceivers for electric power: Based on different applications in these fields, the TV optical transceivers used in radio, television and telecommunications are relatively fixed and have fewer varieties.