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Media optical fiber communication because of its anti-jamming, light weight, the advantages of large capacity information transmission is widely used as a. Using the transmission line cable to the existing is the most economical, the most effective.

The optical fiber must solve the problem is photoelectric conversion problem, also is the conversion of twisted pair and optical signals over long distance and short distance problem, computer and other common user network equipment mostly do not have optical interface, not with the backbone communication network directly through the optical fiber communication, conversion must be carried out by a photoelectric converter export to optical fiber, the only network equipment network interface with optical fiber interface and of the backbone communication network for communication, photoelectric converter provides the net mouth to fiber, to provide a fiber interface and main stem network docking, down to provide TCP/IP network interface with the computer network devices such as docking, the computer can be connected directly optical fiber communication through the photoelectric converter.

Photoelectric converter selection tips
Now on the market by the photoelectric converter is divided into: single mode and multimode optical fiber, according to the interface is different, can be divided into: SC, FC, ST etc. several interface, according to the working mode is divided into: double fiber and fiber, (double fiber in full duplex mode, single working in half duplex mode)
Fault phenomenon is described and the solution: (with double fiber photoelectric converter as an example)

Photoelectric converter usually has six directions, one for the POWER power indicator, a fiber optic link indicator LINK (near the fiber side), a fiber optic data exchange instructs the ACK, a RJ45 interface indicating LINK, a work for the RJ45 interface mode indicating 10/100M, one for RJ45 data exchange instructions.

In the event of a failure, the first plug POWER indicator light is bright, if not bright power does not work normally need to replace the photoelectric converter, if the power indicator is normal, watching fiber LINK lamp is normal, if destroyed, that road is blocked, then check the light path problem, if the light path of the LINK lamp and normal light you see, RJ45LINK is bright, if not bright, have a look whether connected switch port damage, or the port DOWN off, or have a look the network connection is intact, if RJ45LINK is working properly, look at the two ACK data is frequently flashing flashing lamp, if the speed is too slow to illustrate the network data exchange is not normal, this time you have a look, work pattern matches, fiber is inserted properly, such problems encountered, photoelectric converter is basically can solve.