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Removing and Replacing the Power Supply
Installation Procedure
Warning
Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Statement 1003
Warning
A readily accessible two-poled disconnect device must be incorporated in the fixed wiring. Statement
1022
This product requires short-circuit (overcurrent) protection, to be provided as part of the building
Warning
installation. Install only in accordance with national and local wiring regulations. Statement 1045
Use copper conductors only. Statement 1025
Warning
When stranded wiring is required, use approved wiring terminations, such as closed-loop or
Warning
spade-type with upturned lugs. These terminations should be the appropriate size for the wires and
should clamp both the insulation and conductor. Statement 1002
Follow these steps to install a DC-input power supply, connect it to a power source, and verify its
operation:
Step 1
Verify that power is off to the DC circuit or circuits on the power supply you are installing.
Grasp the power supply handle with one hand. Place your other hand underneath it as you slowly insert
Step 2
the power supply into the bay (as shown earlier in
Using a screwdriver, tighten the captive screws on the power supply (see
Step 3
Step 4
Before you connect the power supply to a power source, ensure that all site power and grounding
requirements have been met.
Connect the DC-input wires to the power supply terminal block. The proper wiring sequence is ground
Step 5
to ground, positive to positive, and negative to negative (see
your installation).
The 1400W triple-input power supply has two grounding posts; use the one that is most convenient for
your installation.
When installing or replacing the unit, the ground connection must always be made first and
Warning
disconnected last. Statement 1046
Replace the terminal cover.
Step 6
Connect the other end of the power cords to a DC-power input source.
Step 7
Catalyst 4500 E-Series Switches Installation Guide
4-12
Chapter 4
Figure
4-16).
Figure
Figure 4-13
or
Figure 4-14
Removing and Replacing FRUs
4-15).
depending on
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