What is the difference between light cat and fiber optic transceivers?
Time：2017-04-06 17:30:39
Now on the market many customers ask fiber optic transceivers and light cats are not the same thing? What is it? Here Xiaobian from a different definition and perspective analysis: 1. Light cat can also be seen as a fiber to the serial port of the adjustment module, he has the role of extended distance. General fiber to serial 232/485/422 protocol form. Commonly known as three-in-one optical fiber serial converter, there are only one of the functions of the conversion, which depends on the specific needs of customers. So sometimes called light cat (modem)
2. Optical fiber transceiver is a short distance twisted pair electrical signals and long distance optical signal interchangeable Ethernet transmission media conversion unit, in many places also known as the photoelectric converter (Fiber Converter). Photoelectric converter is the Ethernet signal is converted to optical signal transmission, but not simply the physical conversion, there will be a corresponding agreement in the conversion. Sometimes the market is also called fiber switches. But also different from the industrial Ethernet switches, their level lines and hardware is not the same, industrial Ethernet switches are stored hard disk, there are hundreds of Gigabit, Gigabit, 10 Gigabit Ethernet switches different levels. Can be used to form a large ring network switch. The use of the environment is relatively complex.
3. Optical is an extension of data transmission optical fiber communication equipment, which is mainly through signal modulation, photoelectric conversion technology, the use of optical transmission characteristics to achieve the purpose of remote transmission. Optical transceiver is generally used in pairs, divided into optical transmitter and optical receiver, optical transmitter to complete the electrical / optical conversion, and the optical signal emitted for fiber transmission; optical receiver is mainly received from the optical fiber and then reduced to Electrical signal, complete optical / electrical conversion. Optical function is used for remote transmission of data.
4. Fiber interface with SC \ FC \ ST type, single-mode dual-fiber and single-mode single-fiber points, the specific difference can refer to Zhenxin communication fiber optic serial port converter (ZP-302, ZP-301). Also have the same division. Their transmission distance is 20KM, 40KM, 80KM, 120KM.
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