Datasheet

Data Sheet
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 12 of 17
Supported SFPs
Table 3 lists the SFPs supported by the Cisco Catalyst 4948.
Table 3. SFPs Supported by Cisco Catalyst 4948
SFP
Gigabit Ethernet SFP, LC connector, and LH transceiver
Gigabit Ethernet SFP, LC connector, and SX transceiver
Gigabit Ethernet SFP, LC connector, and ZX transceiver
Gigabit Ethernet SFP, RJ-45 connector, and 10/100/1000BASE-T transceiver
Cisco Coarse Wavelength-Division Multiplexing (CWDM) SFP 1470 nanometer (nm); Gigabit Ethernet and 1- and 2-Gbps Fibre
Channel (gray)
Cisco CWDM SFP 1490 nm; Gigabit Ethernet and Fibre Channel (violet)
Cisco CWDM SFP 1510 nm; Gigabit Ethernet and Fibre Channel (blue)
Cisco CWDM SFP 1530 nm; Gigabit Ethernet and 1- and 2-Gbps Fibre Channel (green)
Cisco CWDM SFP 1550 nm; Gigabit Ethernet and Fibre Channel (yellow)
Cisco CWDM SFP 1570 nm; Gigabit Ethernet and Fibre Channel (orange)
Cisco CWDM SFP 1590 nm; Gigabit Ethernet and Fibre Channel (red)
Cisco CWDM SFP 1610 nm; Gigabit Ethernet and Fibre Channel (brown)
Power Supply
The Cisco Catalyst 4948 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 (refer to Table 4).
Table 4. AC and DC Power Supply Specifications
Specification 300W AC 300W DC
Input Current
●
4A @ 100V
●
2A @ 240V
8A @ –40.5 to –75VDC
Output Current 25A @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 in. (43.9166 cm)
●
Depth: 16.14 in. (40.9956 cm)
●
Height: 1.712 in. (4.445 cm)
●
Weight: 16.5 lb (7.48 kg) with one power supply
Software Requirements
The Cisco Catalyst 4948 high-performance edge switch is supported only in Cisco IOS Software
and is not supported in the Cisco Catalyst OS Software. The minimum software version is Cisco
IOS Software Release 12.2(20)EWA or later.
For the latest software release information and recommendations, please refer to the product
bulletin at
http://www.cisco.com/en/US/products/ps6021/prod_bulletins_list.html.