What is the loss of superframe synchronization?
This is when the data in the payload of the DS-1 is no longer in the same DS-1 frame number. For example a DS-1 signal passing through a Digital Cross Connect device is stripped of its framing bit, all 24 DS-0 (64 Kb/s) Channels are connected to another DS-1 port. When the DS-0’s are reassembled, a framing bit is added to the DS-1. This framing bit is not synchronized to the original DS-1 entering the digital cross connect. So the 1536 Kb/s data may be “offset” from the original 8 Kb/s framing bit pattern.
