CHAPT ER
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Cisco ME 3800X and ME 3600X Switch Hardware Installation Guide
OL-22168-01
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Installing and Removing AC and DC Input Power Supply and Fan Modules
This chapter provides the installation and removal instructions for the AC and DC input power supply
and fan modules for the Cisco ME 3800X and ME 3600X switches. Your switch ships with at least one
power supply module installed, either AC or DC, depending on your order. The power supply and fan
modules are field-replaceable units (FRUs).
Note The power supply and fan modules are hot-swappable devices.
For translations of the safety warnings in this chapter, see the Regulatory Compliance and Safety
Information for the Cisco ME 3800X and ME 3600X Switch on Cisco.com.
•Power Supply Module Description, page3-1
•Fan Module Description, page3-3
•Connector-Side Description, page3-3
•Power Supply and Fan Module Installation, page3-4

Power Supply Module Description

The AC input power supply module is an autoranging unit that supports input voltages between
100 and 240 VAC. The AC power supply module ships with a power cord to connect to an AC power
outlet.
The DC input power supply module has a single input feed and supports input voltages from 18 to
32 VDC or 36 to 72 VDC. The DC power supply module ships with a terminal block to be wired for DC
power outlet connections. The terminal block is covered by a clear plastic block cover that snaps onto
the terminal block. You must remove the block cover before you work with the wires. The block cover
is slotted so that the wires can exit only one end. If you want the wires to exit in a different direction,
remove the block cover, rotate it, and snap it back on.
Table3-1 Power Supply Module Model Numbers and Descriptions
Model number Description
PWR-ME3KX-AC AC input power supply module
PWR-ME3KX-DC DC input power supply module