3-6
Catalyst 3650 Switch Hardware Installation Guide
OL-29734-01
Chapter 3 Power Supply Installation
Installing or Replacing an AC Power Supply
Warning
Blank faceplates and cover panels serve three important functions: they prevent exposure to
hazardous voltages and currents inside the chassis; they contain electromagnetic interference (EMI)
that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not
operate the system unless all cards, faceplates, front covers, and rear covers are in place.
Statement 1029
Warning
Do not reach into a vacant slot or chassis while you install or remove a module. Exposed circuitry
could constitute an energy hazard.
Statement 206
Warning
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030
Installing or Replacing an AC Power Supply
Step 1 Turn off the power at its source.
Step 2 Remove the power cord from the power cord retainer.
Step 3 Remove the power cord from the power connector.
Step 4 Press the release latch at the right side of the power supply module inward and slide the power supply
out (Figure 3-6).
Caution Do not leave the power-supply slot open for more than 90 seconds while the switch is operating.
Warning
This unit might have more than one power supply connection. All connections must be removed to
de-energize the unit.
Statement 1028
Step 5 Insert the new power supply into the power-supply slot, and gently push it into the slot (Figure 3-6).
When correctly inserted, the 250-W and 640-W power supplies (excluding the power cord retainer) are
flush with the switch rear panel. The 1025-W power-supply module extends 1.5 inches from the switch
rear panel.
