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Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide
OL-21561-02
Chapter 3 Installing the Switch
Connecting Power to the Switch
Figure 3-5 Connecting Source AC to the AC-Input Power Supply
Step 5
Connect the other end of the power cord to an AC-power input source. If two power supplies will be used
to power the chassis, make sure that each AC-input power supply is plugged into its own dedicated
circuit.
Note If you have only one power supply installed in the chassis, you must cover the empty power supply bay
with a blank power supply cover (Cisco p/n 800-25264-01). The blank power supply cover maintains
EMI shielding and proper air flow through the chassis.
Step 6 Do not turn on the AC-input power supply power on/off switch at this time. Continue the installation
process by attaching the interface cables to the chassis ports.
Connecting DC Source Power to the Switch
Warning
Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Statement 1003
Warning
This unit is intended for installation in restricted access areas. A restricted access area can be
accessed only through the use of a special tool, lock and key, or other means of security.
Statement 1017
Warning
This product requires short-circuit (overcurrent) protection, to be provided as part of the building
installation. Install only in accordance with national and local wiring regulations.
Statement 1045
Warning
Hazardous voltage or energy may be present on DC power terminals. Always replace cover when
terminals are not in service. Be sure uninsulated conductors are not accessible when cover is in
place.
Statement 1075
207518
INPUT
OK
OUTPUT
OK
PWR - 540 AC
100 - 240 VAC
7 - 3A
50 - 60 Hz
INPUT
OK
OUTPUT
OK
PWR - 540 AC
100 - 240 VAC
7 - 3A
50 - 60 Hz
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