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Cisco ME 3800X and ME 3600X Switch Hardware Installation Guide
OL-22168-01
Chapter3 Installing and Removing AC and DC Input Power Supply and Fan Modules
Power Supply and Fan Module Installation
Caution Secure the wires coming from the terminal block so that they cannot be disturbed. For example, use tie
wraps to secure the wires to the rack.
Step7 After ensuring that all wire connections are secure, reinstall the terminal block cover.
Step8 Remove the tape from the circuit-breaker switch handle, and move the circuit-breaker handle to ON.
Step9 Move the DC power supply module switch to ON.
Step10 From the front of the switch, confirm that the PS IN and the PS/FAN LEDs are green. If you can access
the switch rear panel, verify that the power supply module PSU and INPUT LEDs are green. Seethe
“Power Supply Module LEDs” section on page1-11 for a description of the power supply module LEDs.
See the “Switch LED Panels” section on page 1-7 for system LED descriptions
Removing the DC Power Supply Module
Step1 Move the DC power supply module switch to OFF.
Step2 Turn off power at the DC circuits. To ensure that power is removed from the DC circuits, locate the
circuit breakers for the DC circuits, switch the circuit breakers to OFF, and tape the circuit-breaker
switches.
Step3 Remove the terminal block cover from the power supply module terminal blocks.
Step4 Use a Phillips screwdriver to remove the DC input power wires from the power terminals.
Step5 Use a Phillips screwdriver to loosen the two captive screws that secure the power supply module to the
switch chassis.
Step6 Remove the power supply module from the power slot by pulling on the extraction handle.
Caution To prevent overheating and to maintain proper air flow, either a power supply module or a fan module
must be installed in each power supply module slot at all times.