Cisco Systems 2980G Manual De Usuario

Chapter 2 Site Planning

Site Power Requirements and Heat Dissipation

2-2

Catalyst 2984G, 2948G-GE-TX, and 2980G Switch Hardware Installation Guide

78-6286-05

Site Power Requirements and Heat Dissipation

Note

Catalyst 2948G, 2948G-GE-TX, and 2980G switches have internal power
supplies. All of the switches support Cisco Redundant Power System (RPS) for
redundant operation.

This section provides site power requirements and heat dissipation specifications
for the Catalyst 2948G, 2948G-GE-TX, and 2980G switches. You should verify
site power before you install a switch.

Power requirements can vary for each Catalyst switch. Knowing the power
requirements can be useful for planning the power distribution system needed to
support the switches. Heat specifications are used for determining the
air-conditioning requirements for an installation.

Note

Refer to the Site Preparation and Safety Guide for site power requirements,
preinstallation requirements, and EMI recommendations.

Table 2-1

describes the power requirements and heat dissipation specifications for

the Catalyst 2948G, 2948G-GE-TX, and 2980G switches.

Table 2-1

Power Requirements and Heat Dissipation Specifications

Model Number/
Module Type

Power
Supply
Output
(Watts)

AC Input
Power
(Watts)

Heat Diss
(BTU/Hr)

AC Input Current (Amps)

Catalyst 2948G switch

120

200

645

90 VAC: 2.0
120 VAC: 1.6
180 VAC: 1.0
240 VAC: 0.9

Catalyst 2948G-GE-TX switch

156

130

445

100 VAC: 1.5
240 VAC: 0.8