Technical data

Field Replaceable Unit Removal and Replacement

Power Entry Modules (PEMs) and PEM Fuses

Chapter 1

Figure 1-2Power Entry Module (PEM) A, Power Cables and Returns Attached

Step 3. With the blue hot-swap LED steadily illuminated and all input power disabled/disconnected,

remove the PEM Terminal Block Cover (#5, Figure 1-2.

Step 4. Remove and label each terminal block power and return cable for replacement hookup.

Step 5. Loosen both PEM fixing screws (#7, Figure 1-2).

Step 6. Using the two PEM handles (#6, Figure 1-2), pull the PEM from its mounting slot.

Step 7. Place the removed PEM in an anti-static bag for shipment.

Replacing a Power Entry Module

CAUTION Electrostatic Discharge Hazard. Observe all ESD safety precautions while completing this

procedure. Failure to follow ESD safety precautions could result in damage to the 14-Slot Shelf

and equipment.

To replace the PEM in the Shelf, complete the following steps:

Step 1. Holding the replacement PEM by its handles (#7, Figure 1-2) carefully insert the PEM into the

empty PEM slot. Ensure that the PEM internal electrical connectors are aligned, and then use firm

pressure to ensure that the PEM is properly seated in the connector.

Step 2. Tighten the PEM fixing screws that hold the PEM in the 14-Slot Shelf chassis (#7, Figure 1-2).