Supported X2 Optics, Switch Dimensions | Cisco Systems 4948 guide

Supported X2 Optics

Table 3 lists the X2 optics supported by the Cisco Catalyst 4948-10GE.

Table 3.		X2 Optics Supported by Cisco Catalyst 4948-10GE

	Type		Maximum Distance over Specified Medium

	LR		10 km on single-mode fiber (SMF) (G.652)

	CX4		Up to 15m on IBX4 cable

	LX4		300m on multimode fiber (MMF)

	SR		26m on MMF

	ER		40 km on SMF*

*Available in Q4 2005

Power-Supply Specifications

The Cisco Catalyst 4948-10GE offers a choice of 300-watt (W) AC or DC power supplies. The switch can operate with one power supply present. When two power supplies are installed, the switch shares the power load between the two supplies (Table 4).

Table 4. AC and DC Power-Supply Specifications

	300W AC		300W DC
Input Current	•	4A at 100V	8A at –48 to –60V
	•	2A at 240V

Output Current	25A at 12 VDC		25A @ 12 VDC

Weight	Weight 2.0 kg		Weight 2.0 kg

Heat Dissipation	1023 BTU/hr		1023 BTU/hr

Switch Dimensions

∙Width: 17.290 inches (43.9166 centimeters [cm])

∙Depth: 16.14 inches (40.9956 cm)

∙Height: 1.712 inches (4.445 cm)

∙Weight: 16.5 pounds (7.48 kilograms [kg]) with one power supply

Software Requirements

The Cisco Catalyst 4948-10GE is supported only in Cisco IOS Software and is not supported in the Cisco Catalyst Operating System Software (CatOS). The minimum software version is Cisco IOS Software Release 12.2(25)EWA or later.

Environmental Conditions

∙Operating temperature: 32º to 104ºF (0º to 40ºC)

∙Storage temperature: –40º to 167ºF (–40º to 75ºC)

∙Relative humidity: 10 to 90 percent, noncondensing

∙Operating altitude: –60 to 2000m

Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.com.

Page 9 of 14