Toshiba Strata CTX28 Programming Manual page 187

F
IELD
07 D Ch Position
08~13 Bearer Services:
•
Speech
•
3.1 KHz Audio
•
7 KHz Audio
•
Unrestr. 64K
•
Unrestr. 56K
•
Unrestr. 2x64K
14~18 Bearer Services:
•
Unrestr. 384K
•
Unrestr. 1536K
•
Unrestr. 1920K
•
Restr. Digital
•
Video
19 Bearer Svc Multirate
Unrestricted
20 B Ch Selection Method
21 B-Ch Selection
22 T1 Time Slot Pattern
23 E1 Time Slot Pattern
24 T-Wait Timer
Strata CTX Programming - Part 2: CTX WinAdmin Programming 6/04
D
ESCRIPTION
PRI includes a 64-kbps D-channel (for transfer of signal information). Select the
channel position to be used for D channel signaling.
Note This field is used only when the span interface speed is 1.5M. If the span
interface speed is 2M the value is fixed at 16.
Possible values: 0 ~ 24 (default = 24)
1. Enable the Bearer Capabilities allowed for this PRI Trunk channel group.
Possible values: Enable (default) or Disable
2. Select the Channel Method (map) to identify the channels.
Note In North America, only Channel Number map is used (Channel Number).
See Table 6-2.
Possible values: Channel Number (default) or Slot Number
1. The Bearer Capabilities (384k Unrestricted(H0), 1536k Unrestricted(H11),
1920k Unrestricted, Restricted Digital Info, Trunk Video, and Unrestricted
Multirate) are not used and should remain disabled.
Possible values: Enable or Disable (default)
2. Select the Channel Method (map) to identify the channels.
Note In North America, only Channel Number B map is used. See
Possible values: Channel Number B (default), Channel Number H, Slot Map B or
Slot Map H
The Bearer Capabilities 384k Unrestricted (H0), 1536k Unrestricted (H11), 1920k
Unrestricted, Restricted Digital Info, Trunk Video and Unrestricted Multirate are not
used and should remain disabled. See
Possible values: Enable or Disable (default)
The method used for selecting an idle 'B' channel and the reaction if the PSTN
indicates the channel is not available needs to be chosen to originate a call from
CTX.
Possible values: Explicit (default), Preferred or Any Channel
Preferred option is recommended, unless PSTN needs other choice.
The search method for choosing an idle 'B' channel shall also be specified.
Backward Terminal is the normal method with the PSTN following a Forward
Terminal method.
Possible values: Forward Cyclic, Backward Cyclic, Forward Terminal or
Backward Terminal (default)
1544 Time Slot Pattern.
Possible values: Fixed1 (default), Flexible or Floating
2048 Time Slot Pattern
Possible values: Fixed1 (default), Fixed2 or Flexible
Specify whether the T-Wait timer is to be enabled or disabled. This field is only
valid for Nat'l ISDN. This should not be enabled for PRI, it is for BRI.
Possible values: Enable or Disable (default)
Table 6-2.
Trunks
ISDN
Table 6-2.
6-27