Network Device Installation Guide

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Cisco MDS 9500 Series Hardware Installation Guide
OL-17467-02
Chapter 2 Installing the Cisco MDS 9500 Series
Removing and Installing a Power Supply or PEM
Step 3 Ensure that the power switch is in the off (0) position on the power supply you are installing. See
Figure 2-33 and Figure 2-31 for the location of the switch.
Figure 2-31 4000-W AC Power Supply for the Cisco MDS 9509 Director
1 AC power connection 4 Power supply switch
2 Power supply LEDs 5 Permanent power cable
3 Captive screw
99370
INPUT
O
K
FAN
OK
O
UTPUT
FAIL
I
0
3
4
1
2
5