Supported x2 optics, Power-supply specifications, Switch dimensions – Cisco 4948 User Manual

Page 9: Software requirements, Environmental conditions

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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

2A at 240V

8A at –48 to –60V

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

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