Cisco 2950SX 24 - Catalyst Switch - Stackable Manual de usuario descargar pdf (Pagina 14)

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Power connectors Customers can provide power to a switch by using either the internal power

supply or the Cisco RPS 300. The connectors are located at the back of the

switch.

Internal Power Supply Connector

• The internal power supply is an auto-ranging 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 300 that uses AC

input and supplies DC output to the switch.

• The connector offers a 300-watt redundant power system that can support

six external network devices and provides power to one 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.

• When the internalpower supply has been brought up orreplaced, the Cisco

RPS 300 automatically stops powering the device.

• Attach only the Cisco RPS 300 (model PWR300-AC-RPS-N1) 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 and weight

(H x W x D)

• 1.72 x 17.5 x 9.52 in. (4.36 x 44.5 x 24.18 cm) (Cisco Catalyst 2950T-24,

2950C-24, 2950G-12, 2950G-24, and 2950G-24-DC)

• 1.72 x 17.5 x 13 in. (4.36 x 44.5 x 33.02 cm) (Cisco Catalyst 2950G-48)

• 1.0 rack-unit high

• 6.5 lb. (3.0 kg) (Cisco Catalyst 2950T-24, 2950C-24, 2950G-12, 2950G-24, and

2950G-24-DC)

• 10 lb. (4.5 kg) (Cisco Catalyst 2950G-48)

Environmental ranges • Operating temperature: 32 to 113 F (0 to 45 C)

• Storage temperature: –13 to 158 F (–25 to 70 C)

• Operating relative humidity: 10 to 85% (noncondensing)

• Operating altitude: Up to 10,000 ft. (3000m)

• Storage altitude: Up to 15,000 ft. (4500m)

• Not intended for use on top of desktops or in open ofﬁce environments

Power requirements • Power consumption: 30W maximum, 102 BTUs per hour (Cisco Catalyst

2950T-24, 2950C-24, 2950G-12, 2950G-24, and 2950G-24-DC)

• Power consumption: 45W maximum, 154 BTUs per hour (Cisco Catalyst

2950G-48)

• AC input voltage/frequency: 100 to 127/200 to 240 VAC (autoranging), 50 to

60 Hz

• DC input voltages

– RPS input: +12V @ 4.5 A

– DC input for 2950G-24-DC: –36 to –72 VDC @ 1A

Feature Description

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