Cisco Systems 4948E-F manual Physical and Environmental Specifications

Chapter 1 Product Overview

							Physical and Environmental Specifications
Physical and Environmental Specifications
			Table 1-2and Table 1-3lists the Catalyst 4948E and Catalyst 4948E-F switch chassis environmental and
			physical specifications.
Table 1-2		Catalyst 4948E and Catalyst 4948E-F Switch Specifications - Environment, Heat Dissipation, Shock and
		Vibrations, Physical Characteristics, and Airflow
	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			Chassis unpackaged: –4° to 149°F (–20° to 65°C)
	and storage			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			Operating: 5% to 90%
	(noncondensing) operating			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.
	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)
Table 1-3		Catalyst 4948E and Catalyst 4948E-F Switch Specifications - Acoustic Noise
	Acoustic Noise
	Measured per ISO 7779 and declared per ISO 9296
	Bystander positions operating mode at 25°C ambient.
	Sound Pressure, dBA					Sound Power, dBA
	Model		Typical, LpAm		Maximum, LpAD	Typical, LwA	Maximum, LwAD
	WS-C4948E		55.6		58.6	62.6	65.6
						Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide
	OL-21561-02							1-7