Cisco 3550 User Manual

Page 56

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A-2

Catalyst 3550 Multilayer Switch Hardware Installation Guide

OL-6155-01

Appendix A Technical Specifications

Table A-2

Power Requirements for the Catalyst 3550-12T, 3550-12G, 3550-24, 3550-24-FX, and
3550-48 Switches

Power Requirements

AC input voltage

Catalyst 3550-12T and 3550-12G:
100 to 127/200 to 240 VAC (autoranging)
2 A/1 A, 50 to 60 Hz

Catalyst 3550-24, 3550-24-FX, and 3550-48:
100 to 127/200 to 240 VAC (autoranging)
1.6 A/0.9 A, 50 to 60 Hz

DC input voltages for
RPS 300

Catalyst 3550-12T and 3550-12G:

+12 V

@13 A

Catalyst 3550-24: +12

V

@8.5

A

Catalyst 3550-24-FX:

+12 V

@8.5 A

Catalyst 3550-48:

+12 V

@13 A

Power Requirements

DC input voltages for
RPS 675

+12 V

@25 A

Power consumption

Catalyst 3550-12T and 3550-12G: 190 W, 650 Btus per hour

Catalyst 3550-24: 65 W, 222 Btus per hour

Catalyst 3550-24-FX: 85 W, 290 Btus per hour

Catalyst 3550-48: 110 W, 375 Btus per hour

Table A-3

Power Requirements for the Catalyst 3550-24PWR Switch

Power Requirements

AC input voltage

100 to 127 / 200 to 240 VAC (autoranging)
5.5 A / 2.8 A,

50 to 60 Hz

DC input voltages for RPS 300

+12 [email protected] A,

–48 [email protected] A

DC input voltages for RPS 675

+12 V

@25 A,

–48 [email protected] A

Power consumption

525 W, 1790 Btus per hour

Table A-4

Power Requirements for the Catalyst 3550-24-DC

Power Requirements

Power consumption

55 W, 190 Btus per hour

DC input voltage

–36 to –72 VDC

DC input voltages for RPS 675

+12 V

@13 A

Wire gauge for power connection 18 AWG (6 AWG for protective earth)

Branch circuit protection

5 A

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