An Outdoor Optical Cable Identifier (OCID) is an intelligent instrument designed for accurately finding and identifying the target optical cable laid in the manhole, tunnel, pipeline and pole aerial, based on the principle of the elastic effect of optical fiber, and converts the bending or shaking signal of optical cable into visual and audio signal through coherent demodulation of light. An optical cable identifier can quickly capture the vibration signal and display it through the waveform and sound when the target optical cable is bent or shaken, by using the new type of nondestructive identification technology for optical cable, so as to quickly locate the target optical cable.

Nowdays, the demand for optical cables is increasing day by day, and the optical cables are expanding from single core to the largest 2096 cores. However, the more the optical cables are laid, the more complicated laying lines are, the more problems they will bring. With the rapid development of communications, the integration of power, radio and television and other cutting-edge forces, and the merger of operators, a large number of optical cables need to be  maintained, so how to correctly distinguish optical cables has become an urgent problem to be solved.

3S is a China supplier of optical cable identifier. The outdoor cable identifiers series with features friendly interface, simple and  practical, non-toxic and harmless, and does not  damage optical cable. It is suitable for accurate  identification of optical cable in the environment of manhole, tunnel, overhead, pipeline and so on. They are new instruments tailored for optical cable  construction, acceptance and operation and  maintenance technicians.