Tuesday, August 28, 2007

E1 standard (2)
The standard frame is 32 timeslots, with each timeslot consisting of an 8-
bit byte. A MultiFrame consists of 16 frames, numbered 0 to 15.

The timeslots are numbered 0 to 31. Timeslot 0 is used for:
- Synchronization
- Alarm Transport
- International Carrier use

Timeslot 16 may be used to transmit Channel Associated Signaling (CAS)
- information. Note that G.732 DOES NOT define the signaling states, only
- The transport of the states through the G.732 frame.

However, G.704 recognizes the requirement for Common Channel
Signaling and also allows the TRANSPARENT End-To-End transport of
Timeslot 16.

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