Nortel Networks NN43001-301 - Manual (Page 93)

Install NTBK51 DDCH on NT5D12 dual-port DTI/PRI 93
CAUTION
A static discharge bracelet must be worn before handling circuit
cards. Failure to wear the bracelet can result in damage to the
circuit cards.
The NTBK51 can only be removed when it is disabled in software. Both
ports of the associated DDP2 card must be disabled. Follow the steps in
Procedure 6 "Remove the NTBK51 from the NT5D97 dual-port DTI2/PRI2
card" (page 93)
to remove the NTBK51 from the NT5D97 dual-port
DTI2/PRI2 card.
Procedure 6
Remove the NTBK51 from the NT5D97 dual-port DTI2/PRI2 card
Step Action
1 Set the DDP2 ENB/DIS faceplate switch to Disable (OFF).
2 Remove the DDP2 and the DDCH.
—End—
Install NTBK51 DDCH on NT5D12 dual-port DTI/PRI
Installation procedures for the NTBK51 DDCH are the same for all Large
Systems.
Set the address for the DDCH (see the switch settings section to set the
address). If a DDCH is present on a DDP card then an external D-channel
should not be connected to J6. If a DDCH is present, the LED "DCH"
lights up.
CAUTION
Service Interruption
A static discharge bracelet must be worn before handling circuit
cards. Failure to wear the bracelet can result in damage to the
circuit cards.
The DDCH can be mounted on any DDP card. Follow the steps in
Procedure 7 "Install the NTBK51 DDCH on the NT5D12 dual-port DTI/PRI"
(page 94)
to install the NTBK51 on the NT5D12 dual-port DTI/PRI card.
Nortel Communication Server 1000
ISDN Primary Rate Interface Installation and Commissioning
NN43001-301 02.03 Standard
Release 5.5 7 December 2007
Copyright © 2003-2007, Nortel Networks
.