OPTICAL COMMUNICATION APPARATUS, DIAGNOSTIC METHOD AND DIAGNOSTIC PROGRAM

To specify an abnormal path.SOLUTION: An OLT 100 connects with an ONU through an optical switch device 200 having an optical switch 220 and an optical splitter. The OLT 100 has: an in-operation OSU which connects with the ONU through the optical splitter; a standby OSU 130 which connects with the ON...

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Bibliographische Detailangaben
Hauptverfasser: IDA TOMONAGA, MORITA HIROYUKI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To specify an abnormal path.SOLUTION: An OLT 100 connects with an ONU through an optical switch device 200 having an optical switch 220 and an optical splitter. The OLT 100 has: an in-operation OSU which connects with the ONU through the optical splitter; a standby OSU 130 which connects with the ONU through the optical switch 220 and optical splitter; a storage part 111 which stores abnormality diagnostic information as information used to diagnose abnormality of a path between the OLT 100 and ONU; and a control part 110 which diagnoses the abnormality of the path based upon at least one of first signal intensity as signal intensity when the in-operation OSU receives a light signal that the ONU transmits and second signal intensity as signal intensity when the OSU 130 receives the light signal, and abnormality diagnostic information.SELECTED DRAWING: Figure 1 【課題】異常な経路を特定すること。【解決手段】OLT100は、光スイッチ220と光スプリッタとを有する光スイッチ装置200を介してONUと接続する。OLT100は、光スプリッタを介して、ONUと接続する運用系のOSUと、光スイッチ220と光スプリッタとを介して、ONUと接続する待機系のOSU130と、OLT100とONUとの間の経路の異常を診断する際に用いられる情報である異常診断情報を記憶する記憶部111と、ONUが送信した光信号を運用系のOSUが受信したときの信号強度である第1の信号強度とOSU130が当該光信号を受信したときの信号強度である第2の信号強度とのうちの少なくとも1つと異常診断情報とに基づいて、当該経路の異常を診断する制御部110と、を有する。【選択図】図1