Connecting to both ac and dc power in the switch – Cisco 3750 User Manual
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Catalyst 3750 Metro Switch Hardware Installation Guide
OL-9160-02
Chapter 3 Connecting the Power Supply
Connecting to Both AC and DC Power in the Switch
Step 4
Use a Phillips screwdriver to remove the screw at the lower-left that secures the power supply unit to
the switch chassis.
Step 5
Remove the power supply unit from the power slot by pulling on the power-on restrictor (see
Connecting to Both AC and DC Power in the Switch
You can install an AC power supply or a DC power supply in either slot. You can also install an AC
power supply in one slot and a DC power supply in the other slot.
Caution
If a DC power supply is present in your configuration, you must install a grounding lug on the switch.
See the section that applies to your configuration:
•
To install an AC power supply in one of the slots, see the
“Connecting to AC Power” section on
.
•
To install a DC power supply in either slot, see the
“Connecting to DC Power” section on page 3-4
•
To remove an AC power supply, see the
“Removing the AC Power Supply” section on page 3-3
.
•
To remove a DC power supply, see the
“Removing the DC Power Supply” section on page 3-12
Warning
This unit might have more than one power supply connection. All connections must be removed to
de-energize the unit. Statement 1028