Datasheet

Data Sheet
© 2011 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 6 of 9
Switch Indicators and Ports
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System status: Green (operational) or red (faulty)
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Console: RJ-45 socket
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Reset (switch recessed for protection)
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Uplinks: Link and active
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Image management port: 10/100/1000BASE-TX (RJ-45 socket) data terminal equipment (DTE); green
(good), orange (disabled), or off (not connected)
Physical and Environmental Characteristics
Table 2 lists the physical and environmental characteristics of the Cisco Catalyst 4948E and 4948E-F switches.
Table 2. Physical and Environmental Characteristics
Feature Specification
Environmental
Operating temperature 32 to 104°F (0 to 40°C)
Storage temperature -40 to 167°F (-40 to 75°C)
Relative humidity 10 to 90%, noncondensing
Operating altitude -196 to 6561 ft (-60 to 2000m)
Mean time between failure (MTBF)
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Cisco Catalyst 4948E-F : 149,261 hours
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Cisco Catalyst 4948E: 145,422 hours
Airflow
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28 cubic feet per minute (CFM) at low speed
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44 CFM at full speed
Physical
Dimensions 1.75 x 17.5 x 19.4 in. (4.4 x 44.4 x 49.3 cm)
Weight
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19 lb (8.62 kg) (fully loaded with 2 power supplies and fan tray)
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14 lb (6.35 kg) (base system only; no power supply or fan tray)
Power
AC input voltage range 90 to 264 VAC
DC input voltage range -40.5 to -72 VDC
Maximum current
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AC: 4 amperes (A) at 120 VAC; 2A at 240 VAC input
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DC: 8A at -48 VDC input
Typical operating power 230W at 25°C
Maximum power 275W at 55°C
RoHS compliant RoHS-6 compliance
Heat dissipation (maximum)
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AC Input: 1173 BTU per hour
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DC Input: 1251 BTU per hour
For Cisco Catalyst 4948E and 4948E-F mounting options, please refer the installation guide at
http://www.cisco.com/en/US/docs/switches/lan/catalyst4900/4948E/installation/guide/4948E.pdf
Industry Standards
Table 3 summarizes the supported industry standards on Cisco Catalyst 4948E and 4948E-F switches. For a
detailed list of supported software features, please refer to the software release notes at
http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/release/note/OL_23985.html.