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Subscriber line terminal device and loopback test method

  • US 20040017965A1
  • Filed: 12/03/2002
  • Published: 01/29/2004
  • Est. Priority Date: 07/29/2002
  • Status: Active Grant
First Claim
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1. A subscriber line terminal device, connected by an optical fiber to a subscriber line terminating device, comprising:

  • a reception unit, which receives a plurality of monitoring signals sent from said subscriber line terminating device via said optical fiber, said plurality of monitoring signals indicating normality or abnormality of a plurality of monitored items in the subscriber line terminating device respectively; and

    , a selection unit, which, when two or more among said plurality of monitoring signals received by said reception unit indicates abnormality, selects a monitoring signal with high order of priority from among the two or more monitoring signals indicating abnormality, based on a prescribed order of priority.

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