Loopback Fiber Patch Cord is a special purpose fiber patch cord, mainly used for network equipment self-loop testing, link detection and fault diagnosis. Its core function is to directly transmit the optical signal from the transmitting end (TX) of the device to the receiving end (RX) to form a closed-loop test environment.

The 1-meter aviation loopback communication cable fiber optic patch cord is a 1-meter optical communication passive device designed specifically for aerospace scenarios. It forms a looped closed loop through the optical fiber core wire, and is equipped with aviation-grade optical connectors at both ends to achieve self-loop transmission and testing of optical signals. The product must meet the strict requirements of the aviation field for high temperature resistance, vibration resistance, and electromagnetic interference prevention. It is often used for on-site debugging, system self-test, and short-distance closed-loop communication of airborne electronic equipment. It has the characteristics of lightweight, high reliability, and strong environmental adaptability.