OPTICAL LINE PROTECTION SYSTEM INTEGRATED WITH OPTICAL TIME DOMAIN REFLECTOMETER

The invention relates to the field of optical line protection. Disclosed is an optical line protection system integrated with an optical time domain reflectometer, comprising a transmitting terminal and a receiving terminal. The transmitting terminal and the receiving terminal are connected by means of an optical fiber. Each of the transmitting terminal and the receiving terminal is provided with an optical line protection unit for switching between optical lines. The optical line protection unit is integrated with an optical time domain reflectometer. The optical time domain reflectometer is used to find a failure point of an optical fiber. By using the invention, information associated with an optical fiber failure can be acquired timely, thereby reducing an amount of time required for processing a failure.