1 Introduction
1.1 Scope and field of application
2
Type of configuration
2.1 Point-to-point
2.2 Location of interfaces
3
Functional characteristics
3.1 Summary of functions (layer 1)
3.2 Interchange circuits
3.3 Activation/deactivation
3.4 Operational functions
4
Interface at 1544 kbit/s
4.1 Electrical characteristics
4.2 Frame structure
4.3 Timing considerations
4.4 Time slot assignment
4.5 Jitter, wander and phase transients
4.6 Interface procedures
4.7 Maintenance
5
Interface at 2048 kbit/s
5.1 Electrical characteristics
5.2 Frame structure
5.3 Timing considerations
5.4 Jitter
5.5 Tolerable longitudinal voltage
5.6 Output signal balance
5.7 Impedance towards ground
5.8 Interface procedures
5.9 Maintenance at the interface
6
Connector
7
Interface wiring
8
Power feeding
8.1 Provision of power
8.2 Power Consumption
8.3 Voltage range
8.4 Protection
Annex A – Time slot assignment for interfaces having only H0-channels
A.1 1544 kbit/s interface
A.2 2048 kbit/s interface
Annex B – Time slot assignment for 2048 kbit/s interfaces having an H11-channel
Appendix I – Pulse mask for interface at 1544 kbit/s