Nortel Passport 7400, Hardware Installation, Maintenance, And Troubleshooting, Page: 361 / 438

Chapter 37 Hardware procedures 361
Passport 7400 Hardware Installation, Maintenance, and Upgrade 5.2S1
Procedure steps
1 If there is an Ethernet cable connected to the faceplate of the CP you will
need to remove it. Refer to the procedure “Removing an Ethernet cable”
(page 378) before proceeding.
2 If there is a local operator or modem cable connected to the V.24 DCE
port, remove it.
3 If there is a BITS cable connected to the CP, remove it.
4 Unlock the latches. See the figure “Locking and unlocking processor card
latches” (page 362).
5 Use both latches in their unlocked, horizontal positions to pull the
processor card out of the slot. See the figure “Disengaging a processor
card” (page 240).
6 Pack the control processor. See the section “Packing a processor card”
(page 307) for storage information.
CAUTION
Risk of service loss by signal noise
Inserting or removing a processor card from a Passport
shelf can cause noise on the backplane that causes loss
of service. Therefore, minimize the time you take to
insert or remove a processor card. Do not let a processor
card sit in the shelf with a partial connection to the
backplane.
CAUTION
Risk of shelf reset by disconnecting an active cable
If you disconnect the Ethernet cable from the active CP,
the shelf undergoes a reset or switches activity with the
spare CP, provided the spare is in standby mode.
WARNING
Damage to equipment by electromagnetic interference
To meet electromagnetic interference (EMI) regulatory
requirements and thermal specifications, all blank slots
must be fitted with a blank processor card. See “Installing
a blank processor card” (page 231).