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Cisco MDS 9100 Series Hardware Installation Guide
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Chapter2 Installing the Cisco MDS 9100 Series
Removing and Installing Components
Removing and Installing Power Supplies
This section provides instructions for removing and installing the power supplies for the Cisco MDS
9100 Series.
Caution Power supplies for the Cisco 9100 Series look similar but they differ slightly. Be sure to use the correct
power supply designated for your Cisco 9100 Series switch. Using an incorrect power supply will not
provide redundant power in the case of a power supply failure.

Removing Power Supplies

To remove a power supply, follow these steps:
Step1 Turn the power switch to the off (0) position on the power supply you are removing.
Step2 Disconnect the power cord from the power source.
Step3 Loosen the captive screw.
Step4 Grasp the power supply handle and slide the power supply out of the switch. See Figure 2-23.
Figure2-23 Cisco MDS 9100 Series Power Supply

Installing Power Supplies

To install the dual 300-W AC-input power supplies, follow these steps:
Step1 Ensure that the system (earth) ground connection has been made.
Step2 Make sure the power cord is disconnected before installing the power supply.
Step3 Verify that the power switch is in the off (0) position on the power supply you are installing.
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