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Installing and Removing Power Components
Removing Modular Configuration DC Power Shelf Wiring
This section describes how to remove the DC power shelf wiring from the rear of the modular configuration
DC power shelf.
Prerequisites
Before performing this task, power down and remove DC PMs and the alarm module in the shelf you want
to disconnect. Remove the upper grille from the rear (MSC) side of the chassis, if installed.
Note
Before removing wiring from the power shelf, make sure that the input power cables are not energized.
Required Tools and Equipment
• ESD-preventive wrist strap
• 6-in. long number 1 Phillips screwdriver
• 3/8-in. ratchet wrench with 10-mm socket
Steps
To disconnect wiring from the fixed configuration DC power shelf, perform the following steps:
SUMMARY STEPS
1. Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection
sockets on the front (PLIM) side of the chassis or a bare metal surface on the chassis.
2. Use the screwdriver to remove the screw that secures the terminal block cover into the mounting standoff.
3. Remove the terminal block cover.
4. Using the 10-mm socket wrench, remove the positive and negative cable pairs from each terminal block.
5. Replace the terminal block cover.
DETAILED STEPS
Step 1
Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection sockets on the
front (PLIM) side of the chassis or a bare metal surface on the chassis.
Step 2
Use the screwdriver to remove the screw that secures the terminal block cover into the mounting standoff.
Removing Modular Configuration DC Power Shelf Wiring
Installing and Removing Power Components
65
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