OLP-Optical Line Protection is a device that is used in the protection of network transmission line, it can realize optical power monitoring and automatic switching. In optical communication network, OLP constantly monitors optical power of working optical fiber and standby optical fiber.

Optical Bypass Protection system (OBP) is a kind of intelligent optical switch system which can bypass fault node in optical transmission network to avoid breakdown of whole network communication.

Optical Bypass Protection (OBP) system is an intelligent switching system which can bypass the faulty node caused by power off or fault of optical output. It can identify the power status of network node and the status of optical signal output

OLP-Optical Line Protection is a device that is used in the protection of network transmission line, it can realize optical power monitoring and automatic switching. In optical communication network, OLP constantly monitors optical power of working optical fiber and standby optical fiber.