Nortel Communication Server 1000S Installation And Configuration Manual page 376

Page 376 of 394
Dedicated mode
LD 17 — Configure the D-channel for ISL (Part 1 of 3)
Prompt Response
REQ CHG
TYPE CFN
ADAN NEW DCH 0-79
553-3001-201 Standard 2.00
2.0 Mb ISL implementation
The DCHI uses the NTAK02 circuit card and does not support ISDN PRI
signaling. The DCHI is reserved for ISL use only. The D-channel can
communicate with the far-end by means of a dedicated leased line modem or
dial-up modem.
Note that the following implementation relates to analogue TIE trunks being
used as B-channels. In the case where DTI/PRI trunks are also used, then
LD 17 digital loop (2.0 Mb PRI) and LD73 (2.0 Mb PRI/SYTI) must also be
configured with the appropriate clocking and threshold settings.
For ISL dedicated mode using a dial-up modem, a 500 set, TIE trunk route
and member must be programmed (used for D-channel). Table 106
summarizes the required steps.
Table 106
Configuring basic ISL capability
Step LD
1 17
2 15
3 16
4 14
Description
Change existing data
Configuration data block.
Add primary D-channel.
September 2004
Action
Configure the D-channel for ISL use.
Enable ISDN option.
Enable the ISL option on a per route basis,
assign a D-channel for each route.
Assign a channel identification to each trunk
with the ISL option.