Quad DS1 ADPCM Card

Card Configuration

Cross-Connects

It is important to note that all timeslots are cross-connected in pairs. The actual pairs that can be cross-connected are dependant upon which of the 3 supported mappings are set using the set (ds1 card) adpcm map command.

Map1

λChannels 1-12 and 14-23 are compressed into 11 DS0s (2 to 1 compression)

λChannel 24 is used for 64K non-compressed data (mapped to channel 12)

λChannel 13 is idle (cannot be used)

λChannel pairing is as follows:

1/2, 3/4, 5/6, 7/8, 9/10, 11/12, 14/15, 16/17, 18/19, 20/21, 22/23 (mapped to channels 1-11)

Note: 13 and 24 are not included in the pairing. See above bullets.

Map2

λChannels 1-24 are compressed into 12 DS0s (2 to 1 compression)

λChannel pairing is as follows:

1/2, 3/4, 5/6, 7/8, 9/10, 11/12, 13/14, 15/16, 17/18, 19/20, 21/22, 23/24 (mapped to channels 1-12)

Map 3

λChannels 1-22 are compressed into 11 DS0s (2 to 1 compression)

λChannel 24 is used for 64K non-compressed data (mapped to channel 12)

λChannel 23 is idle (cannot be used)

λChannel pairing is as follows:

1/2, 3/4, 5/6, 7/8, 9/10, 11/12, 13/14, 15/16, 17/18, 19/20, 21/22 (mapped to channels 1-11)

Note: 23 and 24 are not included in the pairing. See above bullets.

Example: connect 2:1:1 2:4:1

The above example will connect the ADPCM pair 1 (which are actually channels 1 and 2) to channel 1 (now compressed) on port 4.

Example: connect 2:1:1-12 2:4:1-12

With Map 1, the example will connect the ADPCM pairs 1-11 (which is actually channels 1-23 - no 12) to channels 1-11 (now compressed) on port 4 and channel 24 (12) to channel 12 (non-compressed data).

 

 

 

 

Axxius 800 - Release 2.2

13-9

Page 439
Image 439
Carrier Access Axxius 800 user manual Cross-Connects, Map1

Axxius 800 specifications

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