Cisco 4948 Installation Guide - Page 23

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. Table 1-2 Catalyst 4948E and Catalyst 4948E-F Switch Specifications Item Environmental Temperature, operating Temperature, nonoperating and storage Thermal transition Humidity (RH), ambient (noncondensing) operating Altitude, operating Heat Dissipation Shock and vibration Acoustic noise Physical Characteristics Dimensions (H x W x D) Weight Airflow Specification Certified for operation: 32° to 104°F (0° to 40°C) Designed and tested for operation: 32° to 131°F (0° to 55°C) Chassis unpackaged: -4° to 149°F (-20° to 65°C) Chassis in protective shipping package: -40° to 158°F (-40° to 70°C) 0.5°C per minute (hot to cold) 0.33°C per minute (cold to hot) Operating: 5% to 90% Nonoperating and storage: 5% to 95% 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) 1364 BTU/hour (worst case) Refer to Appendix D, "Regulatory Compliance and Safety Information" for shock and vibration compliance information for the switch. Refer to Appendix D, "Regulatory Compliance and Safety Information" for acoustic noise compliance information for the switch. • 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. • 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. • 28 CFM (low speed) • 44 CFM (high speed) OL-21561-02 Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide 1-7