Cisco 4948 - Catalyst Switch Guía de instalación Pagina 71

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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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