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Channel Associated Signaling - E1

Jul 17,2008 by admin

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Channel Associated Signaling - E1

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The time slots are numbered 1 though 32, although the channels are numbered 0 through 31, as shown in Figure 2-35. Multiframe time slots are configured as follows:

Time slot 1 carries only framing information.
Time slot 17, in the first frame of the 16-frame multiframe, declares the beginning of the multiframe, which is indicated by the M symbol in Figure 2-35.
The remaining slot 17s carry signaling information for all the other time slots:

- Slot 17 of the first frame declares the beginning of a 16-frame multiframe (M).

- Slot 17 of the second frame carries ABCD for voice slot 2 (X) and ABCD for voice slot 18 (Y).

- Slot 17 of the third frame carries ABCD for voice slot 3 (X) and ABCD for voice slot 19 (Y).

This process continues for all the remaining frames.

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