CHAPT ER
3-1
Cisco ME 3400E Ethernet Access Switch Hardware Installation Guide
OL-16447-01
3
Installing and Removing AC- and DC-Power-Supply Modules
This chapter provides the installation and removal instructions for the AC- and DC-power-supply
modules for the Cisco ME 3400E-24TS-M and the Cisco ME 3400EG-12CS-M. Your switch ships with
at least one power-supply module installed, either AC or DC, depending on your order. The
power-supply modules are field-replaceable units (FRUs).
For translations of the safety warnings in this chapter, see the Regulatory Compliance and Safety
Information for the Cisco ME 3400E Switch on the documentation CD and also on Cisco.com.
• Product Overview, page 3-1
• Power-Supply Module Installation, page 3-4
• Power Supply Settings, page 3-17

Product Overview

This section gives an overview of the AC- and DC-power-supply modules.
• Power-Supply Module Description, page 3-1
• Handle-Side Description, page 3-2
• Connector-Side Description, page 3-4

Power-Supply Module Description

The 80-W AC-power-supply module is an autoranging unit that supports input voltages between 85 and
264 VAC. The DC-power-supply module has dual input feeds (A and B) and supports input voltages
between –36 to –72 VDC for telecom applications and +18 to +36 VDC for industrial applications.
Table 3-1 Power-Supply Module Model Numbers and Descriptions
Model number Description
ME34X-PWR-AC AC-power-supply and fan module.
ME34X-PWR-DC DC-power-supply and fan module.
ME34X-PWR-BLANK= Spare blank cover for power-supply and fan module slot.