The optical fiber identifier is an essential tool for optical fiber maintenance. It is used for non-destructive optical fiber identification work and can detect any position of single-mode and multi-mode optical fibers. Main purpose The optical fiber identifier is an essential tool for optical fiber maintenance that is often required during maintenance, installation, cabling and recovery without interrupting business. It is used for lossless optical fiber identification work and can be used at any position on single-mode and multi-mode optical fibers. When detecting, find and separate a specific optical fiber. By injecting a 1310 or 1550 optical signal with a specific modulation signal into the optical fiber at one end, use an identifier to identify it on the line, and it can also indicate the business. Instructions Use an appropriate clamp head to tightly clamp the optical fiber under test (bare fiber or pigtail) and place it in the test area, then turn on the computer for testing. Principle of use Judgment of optical fiber in use. In daily maintenance work, optical cable cutting is often required. In order to accurately determine the use of the fiber core and the relationship between sending and receiving light, optical fiber identifiers are often used, which can accurately determine whether the optical fiber in use (whether there is light), if an optical fiber is used, the readout optical power value and the direction of the received and received light will be displayed, so that the optical fiber in use status can be accurately judged.