Datasheet

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Indicator and Port Specifications
• Fan, PS1, PS2
• Power supply status: Green (operational)/red (faulty)
• System status: Green (operational)/red (faulty)
• Console: RJ-45 female
• SFP ports: Link
• Image management port: 10/100BASE-TX (RJ-45 female) data terminal equipment (DTE); green (good)/orange (disabled)/off (not connected)
Supported SFPs
Table 2 lists the SFPs supported by the Cisco Catalyst 4948.
Table 2. SFPs Supported by Cisco Catalyst 4948
Gigabit Ethernet SFP, LC connector LH transceiver
Gigabit Ethernet SFP, LC connector SX transceiver
Gigabit Ethernet SFP, LC connector ZX transceiver
Gigabit Ethernet SFP, RJ-45 connector, 10/100/1000BASE-T transceiver
Cisco Coarse Wavelength-Division Multiplexing (CWDM) SFP 1470 nm; Gigabit Ethernet and 1Ggigabit/2G FC (grey)
Cisco CWDM SFP 1490 nm; Gigabit Ethernet and FC (violet)
Cisco CWDM SFP 1510 nm; Gigabit Ethernet and FC (blue)
Cisco CWDM SFP 1530 nm; Gigabit Ethernet and 1G/2G FC (green)
Cisco CWDM SFP 1550 nm; Gigabit Ethernet and FC (yellow)
Cisco CWDM SFP 1570 nm; Gigabit Ethernet and FC (orange)
Cisco CWDM SFP 1590 nm; Gigabit Ethernet and FC (red)
Cisco CWDM SFP 1610 nm; Gigabit Ethernet and FC (brown)
Power Supply Specifications
The Cisco Catalyst 4948 offers a choice of 300-watt 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 3).
Table 3. AC and DC Power Supply Specifications
300-Watt AC 300-Watt DC
Input current 4A @ 100V
2A @ 240V
8A @ –48 to –60V
Output current 25A @12 VDC 25A @ 12 VDC
Weight Weight 2.0 kg Weight 2.0 kg
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)