Cisco Systems 4948E-F manual Installing the AC-Input Power Supply

Chapter 4 Removal and Replacement Procedures

Removing and Installing the AC-Input Power Supply

Figure 4-3 Removing and Installing an AC-Input Power Supply

PWR - 540 AC
100 - 240 VAC
	7 - 3A
50 - 60 Hz
INPUT	OUTPUT
OK
	OK

PWR - 540 AC
100 - 240 VAC
	7 - 3A
50 - 60 Hz
INPUT	OUTPUT
OK
	OK

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Installing the AC-Input Power Supply

Note If you have a Catalyst 4948E-F switch chassis and you have also installed the optional Panduit ToR Switch Inlet Duct (model CDE2) to extend the chassis’s air intake, you do not need to remove the air duct or the switch chassis in order to remove and replace the AC-input power supply. There is adequate working space within the air duct to perform the removal and replacement steps.

To install an AC-input power supply in the chassis, follow these steps:

Step 1 Remove the new AC-input power supply from its protective packaging and set the packaging aside.

Step 2 Loosen the two captive installation screws and remove the blank faceplate (WS-X4994= for the Catalyst 4948E or WS-X4994-F= for the Catalyst 4948E-F) covering the empty power supply bay opening. Save the blank faceplate for possible future use.

Step 3 Verify that the power switch is in the off (0) position on the power supply that you are installing.

Note If the power supply is connected to source AC with the power on/off switch in the on position, the two LEDs on the power supply faceplate will be lit red. To clear this condition, cycle the power on/off switch off, then on. The LEDs should then be lit green.

Step 4 Grasp the power supply handle with one hand, and place your other hand underneath the power supply. Slide the power supply into the power supply bay. Make sure that the power supply is fully seated in the power supply bay.

Note The AC power supply is equipped with an EMI gasket on the top and the bottom front edge of the power supply. When sliding the power supply into the power supply bay, be careful not to damage the EMI gaskets.

Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide

OL-21561-02 4-9