Data Sheet
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Power Supply
The Cisco Catalyst 4948 10 Gigabit Ethernet Switch 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
Specification
300W AC
300W DC
Input Current
4A at 100V
8A @ -40.5 to -75VDC
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
Average Power use
212 Watts
212 Watts
Switch Dimensions
●
Width: 17.290 in. (43.9166 cm)
●
Depth: 16.14 in. (40.9956 cm)
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Height: 1.712 in. (4.445 cm)
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Weight: 16.5 lb (7.48 kg) with one power supply
Software Requirements
The Cisco Catalyst 4948 10 Gigabit Ethernet Switch is supported only in Cisco IOS Software and is not supported in
the Cisco Catalyst Operating System Software. The minimum software version is Cisco IOS Software Release
12.2(25)EWA or later.
For the latest software release information and recommendations, please reference the product bulletin at
http://www.cisco.com/en/US/products/ps6021/prod_bulletins_list.html
.
Environmental Conditions
●
Operating temperature: 32 to 104ºF (0 to 40ºC)
●
Storage temperature: –40 to 167ºF (–40 to 75ºC)
●
Relative humidity: 10 to 90 percent, noncondensing
●
Operating altitude: –60 to 2000m