Replacing The Cooling Unit Power Cord On A Multiservice Switch 7480 - Nortel Multiservice Switch 7400 Installation & Maintenance

Replacing the cooling unit power cord on a Multiservice Switch 7480

Replace the power cord on the cooling unit for a Nortel Multiservice
Switch 7480 if it fails.
Prerequisites
• You need a replacement cooling unit power cord with PEC NTHR66BA.
Procedure steps
Step
1
2
Copyright © 2005, Nortel
- 432 -
Hardware procedures
CAUTION
Risk of equipment damage
Replace a cooling unit power cord and restart cooling units within 10
minutes. You can damage the CPs and FPs and they can fail if the
cooling fans are off longer than 10 minutes.
Action
Disconnect the power cord from the "C.U. Power" connector on the back of
the shelf assembly. Use a 1/8-in. screwdriver to loosen the two screws. See
the figure Cooling unit power cord (page
Connect the replacement power cord to the "C.U. Power" connector on the
back of the shelf assembly. Use a 1/8-in. screwdriver to tighten the two
screws.
Nortel Multiservice Switch 7400
Hardware Installation, Maintenance, and Upgrade
NN10600-175 7.1S1 Standard
PCR7.1 and up October 2005
433).
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Nortel Confidential