OPTICAL SIGNAL TRANSCEIVING NETWORK TERMINAL DEVICE HAVING OPTICAL SWITCH FOR BYPASS FUNCTION AND OPTICAL NETWORK ETHERNET SYSTEM INCLUDING THE SAME

摘要

Disclosed is an optical signal transceiving network terminal device having a self bypass function performed when a failure occurs. The optical signal transceiving network terminal device comprises: an optical switch unit which performs at least a 2x2 optical switching function as a single switch during a normal operation, and which performs bypass switching in response to a failure generation control signal; a transceiver unit which receives an optical signal received through the optical switch unit, and transmits an optical signal for transmission through the optical switch unit; a failure detecting unit which detects a failure of the transceiver unit; and a controller which controls the transceiver unit, and applies the failure generation control signal to the optical switch unit when a failure detection signal is generated by the failure detecting unit.