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loss of pointer (LOP)

Loss Of Pointer (LOP) is an error status in the Synchronous Optical Network (SONET) that indicates the loss of the pointer. The LOP signal indicates that the receiving network cannot synchronize with the pointer on the H1 and H2 bytes and thus cannot indicate the position of the Synchronous Payload Envelope (SPE).

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Englisch: loss of pointer - LOP
Updated at: 15.06.2009
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