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Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide
OL-21561-02
Chapter 1 Product Overview
Physical and Environmental Specifications
Physical and Environmental Specifications
Table 1-2 lists the Catalyst 4948E and Catalyst 4948E-F switch chassis environmental and physical
specifications.
Ta b l e 1-2 Catalyst 4948E and Catalyst 4948E-F Switch Specifications
Item Specification
Environmental
Temperature, operating Certified for operation: 32° to 104°F (0° to 40°C)
Designed and tested for operation: 32° to 131°F (0° to 55°C)
Temperature, nonoperating
and storage
Chassis unpackaged: –4° to 149°F (–20° to 65°C)
Chassis in protective shipping package: –40° to 158°F (–40° to 70°C)
Thermal transition 0.5°C per minute (hot to cold)
0.33°C per minute (cold to hot)
Humidity (RH), ambient
(noncondensing) operating
Operating: 5% to 90%
Nonoperating and storage: 5% to 95%
Altitude, operating Certified for operation: 0 to 6500 ft (0 to 2000 m)
Designed and tested for operation: –200 to 10,000 ft (–60 to 3000 m)
Heat Dissipation 1364 BTU/hour (worst case)
Shock and vibration Refer to Appendix D, “Regulatory Compliance and Safety Information” for
shock and vibration compliance information for the switch.
Acoustic noise Refer to Appendix D, “Regulatory Compliance and Safety Information” for
acoustic noise compliance information for the switch.
Physical Characteristics
Dimensions (H x W x D) • 1.75 x 17.5 x 19.4 in. (4.4 x 44.4 x 49.3 cm).
• Chassis requires 1 RU.
• The Catalyst 4948E and the Catalyst 4948E-F switch chassis are
designed to install in standard 19-inch equipment racks that meet
ANSI/EIA
310-D, IEC 60297, and ETS 300-119 standards.
Weight • 14 lb (6.35 kg). Base system; no power supplies and no fan tray.
• 19 lb (8.62 kg). Fully loaded system; two power supplies and a fan tray.
Airflow • 28 CFM (low speed)
• 44 CFM (high speed)
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