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Cisco Systems, Inc.
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Product Specifications
Table 2 Hardware
Description Specification
Performance • Forwarding bandwidth: 28 Gbps (Cisco Catalyst 2970G-24TS), 24 Gbps (Cisco
Catalyst 2970G24T)
• Forwarding rate based on 64-byte packets: 38.7 Mpps (Cisco Catalyst 2970G-24TS),
35.7 Mpps (Cisco Catalyst 2970G-24T)
• 128 MB DRAM and 16 MB Flash memory
• Configurable up to 8000 MAC addresses
• Configurable up to 1000 IGMP groups and bridging entries
• Configurable maximum transmission unit (MTU) of up to 9018 bytes (jumbo frames) for
bridging on Gigabit Ethernet ports, and up to 1546 bytes for bridging on Fast Ethernet
ports
Connectors
and Cabling
• 10BASE-T ports: RJ-45 connectors; 2-pair Category 3, 4, or 5 unshielded twisted-pair
(UTP) cabling
• 100BASE-TX ports: RJ-45 connectors; 2-pair Category 5 UTP cabling
• 1000BASE-T ports: RJ-45 connectors; 2-pair Category 5 UTP cabling
• 1000BASE-T SFP-based ports: RJ-45 connectors, 2-pair Category 5 UTP cabling
• 1000BASE-SX, -LX/LH, -ZX, and CWDM SFP-based ports: LC fiber connectors
(single-mode or multimode fiber)
• Management console port: RJ-45-to-DB9 cable for PC connections
Power Connectors • Customers can provide power to a switch by using either the internal power supply or the
Cisco RPS 675. The connectors are located at the back of the switch.
Internal Power
Supply Connector
• The internal power supply is an autoranging unit.
• The internal power supply supports input voltages between 100 and 240 VAC.
• Use the supplied AC power cord to connect the AC power connector to an AC power
outlet.
Cisco RPS 675
Connector
• Offers connection for an optional Cisco RPS 675 that uses AC input and supplies DC
output to the switch.
• Offers a 675W RPS that supports up to 6 external network devices and provides power
to 1 failed device at a time.
• Automatically senses when the internal power supply of a connected device fails and
provides power to the failed device, preventing loss of network traffic.
• Only the Cisco RPS 675 (model PWR675-AC-RPS-N1=) should be attached to the RPS
receptacle.
Indicators • Per-port status LEDs: link integrity, disabled, activity, speed, and full-duplex indications
• System-status LEDs: system, RPS, and bandwidth-utilization indications
Dimensions
(HxWxD)
• 2.59 x 17.5 x 11.6 in. (6.59 x 44.5 x 29.5 cm) (Cisco Catalyst 2970G-24TS)
• 1.73 x 17.5 x 12.83 in. (4.39 x 44.5 x 32.6 cm) (Cisco Catalyst 2970G-24T)
Weight • 12.5 lb (5.68 kg) (Cisco Catalyst 2970G-24TS)
• 10 lb (4.55 kg) (Cisco Catalyst 2970G-24T)