Cisco 4948 - Catalyst Switch Guide d'installation télécharger pdf (Page 71)

4-7

Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide

OL-21561-02

Chapter 4 Removal and Replacement Procedures

Removing and Installing the DC-Input Power Supply

Figure 4-2 Installing the DC-Input Power Supply

1 Secure the power supply in the chassis with the captive

installation screw.

2 Attach the source DC leads to the terminal block in the

following order:

• Ground

• (–) negative

• (+) positive

278172

INPUT

OK

OUTPUT

OK

PWR - C49-300DC

-48 To -60VAC

8A

+

-

INPUT

OK

OUTPUT

OK

PWR - C49-300DC

-48 To -60VAC

8A

+

-

+

-

INPUT

OK

OUTPUT

OK

PWR - C49-300DC

-48 To -60VAC

8A

2

1

+

-

INPUT

OK

OUTPUT

OK

PWR - C49-300DC

-48 To -60VAC

8A

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