4-11
Catalyst 3850 Switch Hardware Installation Guide
OL-26779-02
Chapter 4 Power Supply Installation
Installing a DC Power Supply
Installing the DC Power Supply in the Switch
Before installing the power supply, see the Installation Guidelines, page 4-5.
Step 1 Turn off DC power. To ensure that power is off, change the circuit breakers to the OFF position, and
tape the circuit-breaker switches in the OFF position.
Step 2 Remove the plastic safety cover from the power supply terminal blocks (Figure 4-4).
If you are not replacing a DC power supply, go to Step 5.
Step 3 Use a number-2 Phillips screwdriver to remove the DC-input power wires from the power terminals.
Step 4 Press the release latch at the right side of the power supply module inward, and pull the power supply
out.
Step 5 Insert the power supply in the power-supply slot, and gently push it into the slot (Figure 4-11). When
correctly installed, the DC power supply (excluding the extraction handle) is flush with the switch rear
panel.
Figure 4-11 Inserting the DC Power Supply in the Switch
Step 6
Connect the input power as described in the “Wiring the DC Input Power Source” section.
Wiring the DC Input Power Source
Step 1 Using a wire-stripping tool, strip each of the four wires from the DC-input power source to the
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.
334077
PWR-C1-715WAC
PWR-C1-440WDC
CONSOLE
MGMT
