Site Power Requirements And Heat Dissipation - Cisco 2948G - Catalyst Switch Hardware Installation Manual
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- Product support bulletin (3 pages) ,
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Site Power Requirements and Heat Dissipation
Site Power Requirements and Heat Dissipation
Note
Note
Table 2-1
Power Requirements and Heat Dissipation Specifications
Model Number/
Module Type
Catalyst 2948G switch
Catalyst 2948G-GE-TX switch
Catalyst 2984G, 2948G-GE-TX, and 2980G Switch Hardware Installation Guide
2-2
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.
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.
Power
Supply
Output
(Watts)
120
156
AC Input
Power
Heat Diss
(Watts)
(BTU/Hr)
200
645
130
445
Chapter 2
Site Planning
AC Input Current (Amps)
90 VAC: 2.0
120 VAC: 1.6
180 VAC: 1.0
240 VAC: 0.9
100 VAC: 1.5
240 VAC: 0.8
78-6286-05
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