Patent ID: 9722695
Date: 2017-08-01
CPC Classifications: H04B,H04Q

Claim:
1. An optical network unit (ONU) comprising: an optical transceiver module; a switch electronically coupled between the optical transceiver module and a power supply; a detecting module electronically coupled between the switch and the power supply and comprising: an ONU chip electronically coupled to the optical transceiver module, the switch, and the detecting module; wherein the ONU chip controls the switch to connect or disconnect the electrical connection between the optical transceiver module and the power supply according to the comparison result from the comparator; wherein the ONU further comprises a storage device electronically coupled to the ONU chip, wherein when the ONU chip determines that the optical transceiver module is abnormal, the ONU chip sets an error flag to a pre-set value, and stores the error flag to the storage device.