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Chapter 3
Power Supply and Fan Module Installation
Installing the DC Power Supply in the Switch
See the
Turn off DC power. To ensure that power is off, change the circuit breakers to the OFF position, and tape
Step 1
the circuit-breaker switches in the OFF position.
Remove the plastic safety cover from the power supply terminal blocks
Step 2
If you are not replacing a DC power supply, go to
Use a number-2 Phillips screwdriver to remove the DC-input power wires from the power terminals.
Step 3
Press the release latch at the right side of the power supply module inward, and pull the power supply out.
Step 4
Insert the power supply in the power-supply slot, and gently push it into the slot
Step 5
correctly installed, the DC power supply (excluding the extraction handle) is flush with the switch rear
panel.
Figure 3-11
CO NS OL
S T A C K
Connect the input power as described in the
Step 6
Wiring the DC Input Power Source
Using a wire-stripping tool, strip each of the four wires from the DC-input power source to the
Step 1
appropriate length for the terminals.
Warning
Use copper conductors only. Statement 1025
Step 2
Using a Panduit crimping tool, crimp the fork-type terminals to the copper conductor, 90C, 14-AWG DC
power input wires.
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.
OL-19593-03
Installation Guidelines, page
Inserting the DC Power Supply in the Switch
E
AU X
RE SE T
1
S T A C K
2
S-P WR
XP S
S-P WR
3-5.
Step
5.
AC OK
PS OK
C3 KX -P
WR -44 0W
DC
AC OK
PS OK
C3 KX -P
WR -44 0W
DC
"Wiring the DC Input Power Source"
Catalyst 3750-X and 3560-X Switch Hardware Installation Guide
Installing a DC Power Supply
(Figure
3-4).
(Figure
3-11). When
section.
Figure 3-12
or
Figure
3-13. Make sure
3-11
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