Chapter 4 Removing and Replacing FRUs

Removing and Replacing the Power Supply

Step 5 Disconnect the DC-input wires from the terminal block. Disconnect the ground wire last (see Figure 4-13or Figure 4-14).

Warning When installing or replacing the unit, the ground connection must always be made first and disconnected last. Statement 1046

Figure 4-13 Connecting the DC-Input Wires

RS-485 serial communnication connector

DC-input wires

Negative

Positive

Ground

79161

Grounding lug

Grounding lug nuts

Figure 4-14 Connecting the DC-Input Wires (Triple-input Power Supply)

- 1 + - 2 +

- 3 +

DC-input wires

Negative Positive

154727

Grounding lugs (2)

Ground

Grounding lug nut

 

 

Catalyst 4500 Series Switches Installation Guide

78-14409-08

4-13

Page 127
Image 127
Cisco Systems 4500 manual Connecting the DC-Input Wires