| 摘要 |
The invention comprises an optical network unit (ONU) constituting an Ethernet-based PON (Passive Optical Network) that consists of an optical transceiver module; a power source switch that turns on or off power supplied to the said optical transceiver module; and a controller designed to shut off the power source for the sending end of the optical transceiver module by controlling the said power switch depending on register messages received from the OLT after register_request message is received.
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