is an essential installation and maintenance instrument. By inserting the fiber into its adapter head, it can identify SM optical fibers without any damage by detecting the optical signals being transmitted through them so as to avoid the opening of the fiber at the splice point for identification and thus avoids the interruption of the service. In the presence of traffic, the intermittently audible tone is activated. The TAM8706 optical fiber identifier also allows relative core power display and identification of the 270Hz, 1 kHz and 2 kHz frequencies. When they are used to detect the frequency, the continuously audible tone is activated.