E1 Frame Structuret

E1 Frame Structuret- A Frame is composed from 256 bits that are divided to 32 Time Slots (TS) x 8 bits per



TS - Each channel rate is 64 Kb/s
- The channels are in consecutive time slots numbered 0-31
- Frame rate is 8 KHz
- TS 1-15, 17-31 are used for user data and are referred as channels 1-30
- TS0 is used for synchronization, alarms and messages (future use)
- TS16 is used for signaling (but can be also used for data)