Removing Ac-Power-Supply Modules - Cisco ME 3400E Hardware Installation Manual

Chapter 3 Installing and Removing AC- and DC-Power-Supply Modules
Align the two captive screws with the screw holes in the panel. Use a ratcheting torque screwdriver to
Step 3
torque each screw to 10 in-lb.
Step 4 Connect the AC-power cord to the front panel power supply and to an AC-power outlet.
(Optional) Snap the AC-power-cord retainer into place, and attach the plastic bushing to secure the
Step 5
power cord (see
Figure 3-8
Step 6 Turn on the power at the power source.
Step 7 Confirm that both the AC 1 LED and the PSU 1 LED are green. (If you can access the switch rear panel,
verify that the PSU OK LED is green.) See
LEDs. See
descriptions.

Removing AC-Power-Supply Modules

Turn off the power at its source.
Step 1
Detach the power-cord retainer and the plastic bushing from the power cord.
Step 2
Remove the power cord from the power connector.
Step 3
Step 4 Use a Phillips screwdriver to loosen the two captive screws that secure the power-supply module to the
chassis. One screw is on the lower right of the module, and the other screw is on the upper left of the
module.
Do not leave the power-supply slot open for more than 90 seconds while the switch is running.
Caution
Remove the power-supply module from the power slot by pulling on the extraction handle.
Step 5
To prevent overheating and to maintain proper air flow, either an AC- or DC-power-supply module or a
Caution
blank cover should be installed in both power-supply module slots at all times. Never operate the switch
for extended periods of time without either a power-supply module or a blank cover installed in the each
power-supply module slot. (See
OL-16447-01
Figure 3-8).
AC-Power Supply and Power-Cord Retainer in a Switch
Table 1-4 on page 1-9 and
Figure
Cisco ME 3400E Ethernet Access Switch Hardware Installation Guide
Table 3-2 for a description of the power-supply module
Table 1-5 on page 1-10 for system and power-supply LED
3-5.)
Power-Supply Module Installation
3-7