Description Specification
Catalyst 3750-48PS, Catalyst 3750G-24TS-1U, Catalyst 3750G-24PS, Catalyst 3750G-48TS, Catalyst
3750G-48PS, and Catalyst 3750G-16TD)
Configurable up to 1000 IGMP groups and multicast routes (Cisco Catalyst 3750G-24TS, Catalyst 3750G-
24T, Catalyst 3750G-12S, Catalyst 3750-24TS, Catalyst 3750-24PS, Catalyst 3750-48TS, Catalyst 3750-
48PS, Catalyst 3750G-24TS-1U, Catalyst 3750G-24PS, Catalyst 3750G-48TS, Catalyst 3750G-48PS, and
Catalyst 3750G-16TD)
Configurable maximum transmission unit (MTU) of up to 9000 bytes, with a maximum Ethernet frame size of
9018 bytes (jumbo frames) for bridging on Gigabit Ethernet ports, and up to 1546 bytes for bridging and
routing on Fast Ethernet ports
Connectors and Cabling
10BASE-T ports: RJ-45 connectors, 2-pair Category 3 (Cat-3), 4, or 5 unshielded twisted-pair (UTP) cabling
100BASE-TX ports: RJ-45 connectors, 2-pair Cat-5 UTP cabling
1000BASE-T ports: RJ-45 connectors, 2-pair Cat-5 UTP cabling
1000BASE-T SFP-based ports: RJ-45 connectors, 2-pair Cat-5 UTP cabling
1000BASE-SX, -LX/LH, -ZX, and CWDM SFP-based ports: LC fiber connectors (single-mode, or multimode
fiber)
10GBASE-ER XENPAK-based port (single-mode)
10GBASE-LR XENPAK-based port (single-mode)
10GBASE-SR XENPAK-based port (multimode)
10GBASE-LX4 XENPAK-based port (multimode)
10GBASE-CX4 XENPAK-based port (Infiniband copper)
Cisco StackWise stacking ports: copper-based Cisco StackWise cabling
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 Connector
The connector offers connection for an optional Cisco RPS 675 that uses AC input and supplies DC output
to the switch.
The connector offers a 675W redundant power system (RPS) that supports up to 6 external network devices
and provides power to 1 failed device at a time.
The connector 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 redundant-power-supply
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 (H x W x D)
2.59 x 17.5 x 11.6 in. (6.6 x 44.5 x 29.5 cm) (Cisco Catalyst 3750G-24TS)
1.73 x 17.5 x 12.8 in. (4.4 x 44.5 x 32.6 cm) (Cisco Catalyst 3750G-24T)
1.73 x 17.5 x 12.8 in. (4.4 x 44.5 x 32.6 cm) (Cisco Catalyst 3750G-12S)
1.73 x 17.5 x 11.8 in. (4.4 x 44.5 x 30.1 cm) (Cisco Catalyst 3750-48TS)
1.73 x 17.5 x 11.8 in. (4.4 x 44.5 x 30.1 cm) (Cisco Catalyst 3750-24TS)
1.73 x 17.5 x 14.8 in. (4.4 x 44.5 x 37.8 cm) (Cisco Catalyst 3750-48PS)
1.73 x 17.5 x 11.8 in. (4.4 x 44.5 x 30.1 cm) (Cisco Catalyst 3750-24PS)
1.73 x 17.5 x 16.1 in. (4.4 x 44.5 x 40.9 cm) (Cisco Catalyst 3750G-16TD)
1.73 x 17.5 x 14.9 in. (4.4 x 44.5 x 37.8 cm) (Cisco Catalyst 3750G-24TS-1U)
1.73 x 17.5 x 14.9 in. (4.4 x 44.5 x 37.8 cm) (Cisco Catalyst 3750G-24PS)
(16 pages)
(12 pages)
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