Cisco 4948 - Catalyst Switch Installation Manual page 71

Chapter 4 Removal and Replacement Procedures
Figure 4-2 Installing the DC-Input Power Supply
+
PW R - C49
-300 DC
-
-48 To -60V
AC
8A
INP UT
OU TPU T
OK
OK
1
+
PW R - C49
-300 DC
-
-48 To -60V
AC
8A
INP UT
OU TPU T
OK
OK
1
Secure the power supply in the chassis with the captive
installation screw.
OL-21561-02
+
PW R - C49
-300 DC
-
-48 To -60V
AC
8A
INP UT
OU TPU T
OK
OK
+
-
2
PW R - C49
-300 DC
-48 To -60V
AC
8A
INP UT
OU TPU T
OK
OK
2
Attach the source DC leads to the terminal block in the
following order:
Ground
•
• (–) negative
• (+) positive
Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide
Removing and Installing the DC-Input Power Supply
4-7