Finding The Power Supply Module Serial Number - Cisco Catalyst 3850 Hardware Installation Manual
Catalyst 3850 series switch
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Finding the Power Supply Module Serial Number
Connect the DC-input power terminals to the terminal blocks. See
Step 3
to match the polarity (negative to negative, positive to positive) when connecting the wires to the
terminal blocks. Connect the ground wire to a grounded metal rack or to earth ground if the switch is not
in a grounded rack.
Figure 4-12
Figure 4-13
Torque all terminal block screws to 11 lbf-in.
Step 4
Replace the terminal block safety cover.
Step 5
Move the DC power source circuit-breakers to the ON position.
Step 6
Confirm that the power supply DC OK and PS OK LEDs are green. See
Step 7
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
the serial number.
Catalyst 3850 Switch Hardware Installation Guide
4-12
DC Source A Isolated From Source B with No Common Ground
A+
A-
DC Source A and Source B Connections with Common Ground
A+
A-
Figure 4-14
to
Figure 4-16
Figure 4-12
B-
B+
B-
B+
to find the serial number. You can also use the CLI to find out
Chapter 4
Power Supply Installation
or
Figure
4-13. Make sure
Table 4-2
for a description of
OL-26779-02
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