CCITT Recommendation R.101 (11/1988) – CODE AND SPEED DEPENDENT TDM SYSTEM FOR ANISOCHRONOUS TELEGRAPH AND DATA TRANSMISSION USING BIT INTERLEAVING
1 System capacity
2 Start-stop channel inputs
3 Start-stop channel outputs
4 Multiplexing details
5 Frame structure
6 Synchronizing
7 Telex signalling
8 Aggregate signals and interface
9 System clock arrangements
10 System maintenance, control and alarms
11 Link transmission system quality indicator
12 Link transmission system availability indicator
References