Cisco 2950SX 24 - Catalyst Switch - Stackable Uživatelský manuál stáhnout pdf (Strana 7)

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Table 21-57: Power Speciﬁcations for Catalyst 2950 Switches with SI Software

Table 21-58: Physical and Environmental Speciﬁcations for Catalyst 2950 Switches with SI Software

Description Specification

Power Connectors Customers can provide power to a switch by using either the internal power supply or the Cisco Redundant

Power System (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.

• Attach only the Cisco RPS 300 (model PWR300-AC-RPS-N1) to the redundant-power-supply receptacle.

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.

• Attach only the Cisco RPS 300 (model PWR300-AC-RPS-N1) to the redundant-power-supply receptacle.

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.

• Attach only the Cisco RPS 300 (model PWR300-AC-RPS-N1) to the redundant-power-supply receptacle

Power Requirements Power consumption: 30W (maximum), 102 BTUs per hour

AC input voltage/frequency: 100 to 127 or 200 to 240 VAC (auto-ranging), 50 to 60 Hz

DC Input Voltages for Cisco RPS 300 Redundant Power System (RPS): +12V @ 4.5A

Description Specification

Dimensions (H x W x D) 1.72 x 17.5 x 9.52 in. (4.36 x 44.45 x 24.18 cm)

One rack-unit (RU) high (1.72 in./4.36 cm)

Weight 6.5 lbs (3.0 kg)

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% (non-condensing)

Operating altitude Up to 10,000 ft (3,000 m)

Storage Altitude Up to 15,000 ft (4,500 m)

Warranty Limited lifetime warranty

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