3-12
Catalyst 3750-X and 3560-X Switch Hardware Installation Guide
OL-19593-03
Chapter 3 Power Supply and Fan Module Installation
Finding the Power Supply Module Serial Number
Figure 3-12
DC Source A Isolated From Source B with No Common Ground
Figure 3-13
DC Source A and Source B Connections with Common Ground
Step 4
Torque all terminal block screws to 11 lbf-in.
Step 5
Replace the terminal block safety cover.
Step 6
Move the DC power source circuit-breakers to the ON position.
Step 7
Confirm that the power-supply
DC OK
and
PS OK
LEDs are green. See
Table 3-2
for a description of
the module LEDs.
Finding the Power Supply Module Serial Number
If you contact Cisco Technical Assistance regarding a power supply module, you need to know the serial
number. See
Figure 3-14
to
Figure 3-16
to find the serial number.
253447
+
B-
B+
-
-
A+
A-
+
253446
+
B-
B+
-
-
A+
A-
+
