Status Indication Normal (SIN) is a status indication that is displayed with the status field (SF) of the Link Status Signal Unit (LSSU) in the SS7 signaling. This status information is displayed when more than one Signalling Link (SLK) exists. During the adjustment process, the Signalling Link checks whether four normal adjustments have been made in 2 s to 3 s.
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|Englisch:||status indication normal - SIN|