Table of Contents

Technical Specifications

This appendix lists the switch technical specifications in Table A-1, Table A-2 Table A-3, and Table A-4 and the regulatory agency approvals in Table A-6.

Table A-1: Technical Specifications for the Catalyst 3550-12T and 3550-12G Switches

Environmental Ranges
Operating temperature	32 to 113°F (0 to 45°C)
Storage temperature	-13 to 158°F (-25 to 70°C)
Relative humidity	10 to 85% (noncondensing)
Operating altitude	Up to 10,000 ft (3049 m)
Storage altitude	Up to 15,000 ft (4573 m)
Power Requirements
AC input voltage	100 to 127/200 to 240 VAC (autoranging) 2.0A/1.0A, 50 to 60 Hz
DC input voltages for RPS 300	+12V @13A
DC input voltages for RPS 675	+12V @25A
Power consumption	190W, 650 Btus per hour
Physical Dimensions
Weight	16 lb (7.26 kg)
Dimensions (H x D x W)	2.63 x 15.9 x 17.5 in. (6.68 x 40.39 x 44.45 cm)

Table A-2: Technical Specifications for the Catalyst 3550-24, 3550-24-FX, and 3550-48 Switches

Environmental Ranges
Operating temperature	32 to 113°F (0 to 45°C)
Storage temperature	-13 to 158°F (-25 to 70°C)
Relative humidity	10 to 85% (noncondensing)
Operating altitude	Up to 10,000 ft (3049 m)
Storage altitude	Up to 15,000 ft (4573 m)
Power Requirements
AC input voltage	100 to 127/200 to 240 VAC (autoranging) 1.6A/0.9A, 50 to 60 Hz
DC input voltages for RPS 300	Catalyst 3550-24: +12V @8.5A Catalyst 3550-48: +12V @13A Catalyst 3550-24-FX: +12V @8.5A
DC input voltages for RPS 675	+12V @25A
Power consumption	Catalyst 3550-24: 65W, 222 Btus per hour Catalyst 3550-48: 110W, 375 Btus per hour Catalyst 3550-24-FX: 85W, 290 Btus per hour
Physical Dimensions
Weight	Catalyst 3550-24: 11 lb (5 kg) Catalyst 3550-48: 13 lb (5.9 kg) Catalyst 3550-24-FX: 10.5 lb (4.8 kg)
Dimensions (H x D x W)	Catalyst 3550-24: 1.75 x 14.4 x 17.5 in. (4.45 x 36.58 x 44.45 cm) Catalyst 3550-48: 1.75 x 16.25 x 17.5 in. (4.45 x 41.28 x 44.45 cm) Catalyst 3550-24-FX: 1.75 x 16.25 x 17.5 in. (4.45 x 41.28 x 44.45 cm)

Table A-3: Technical Specifications for the Catalyst 3550-24PWR Switch

Environmental Ranges
Operating temperature	32 to 113°F (0 to 45°C)
Storage temperature	-13 to 158°F (-25 to 70°C)
Relative humidity	10 to 85% (noncondensing)
Operating altitude	Up to 10,000 ft (3049 m)
Storage altitude	Up to 15,000 ft (4573 m)
Power Requirements
AC input voltage	100 to 127/200 to 240 VAC (autoranging) 5.5A/2.8A, 50 to 60 Hz
DC input voltages for RPS 300	+12V@7.5A, -48V@7.8A
DC input voltages for RPS 675	+12V @25A -48V@7.8A
Power consumption	525W, 1790 Btus per hour
Physical Dimensions
Weight	14 lb (6.35 kg)
Dimensions (H x D x W)	1.73 x 17.35 x 17.5 in. (4.4 x 44 x 44 cm)

Table A-4: Technical Specifications for the Catalyst 3550-24-DC

Environmental Ranges
Operating temperature	32 to 113°F (0 to 45°C)
Storage temperature	-13 to 158°F (-25 to 70°C)
Relative humidity	10 to 85% (noncondensing)
Operating altitude	Up to 10,000 ft (3049 m)
Storage altitude	Up to 15,000 ft (4573 m)
Power Requirements
Power consumption	55W, 190 Btus per hour
DC input voltage	-36 to -72 VDC
DC input voltages for RPS 675	+12V @13A
Wire gauge for power connection	18 AWG (6 AWG for protective earth)
Branch circuit protection	5A
Physical Dimensions
Weight	10.5 lb (4.8 kg)
Dimensions (H x D x W)	1.75 x 14.4 x 17.5 in. (4.45 x 36.58 x 44.45 cm)

Table A-5: Fiber-Port Specifications for Catalyst 3550-24-FX Switches

Fiber-Port Power Levels
	Optical transmitter wavelength	1300 nm1
	Optical receiver sensitivity	-14 dBm2
	Optical transmitter power for 50/125-micron cabling	-19 to -14 dBm
	Optical transmitter power for 62.5/125-micron cabling	-19 to -14 dBm

1nm = nanometers 2dBm = decibel milliwatt

Table A-6: Catalyst 3550 Switch Agency Approvals

Safety	EMC
UL to UL 60950, Third Edition	FCC Part 15 Class A
c-UL to CAN/CSA -C22.2 No. 60950-00, Third Edition	EN 55022 Class A (CISPR 22 Class A)
TUV/GS to EN 60950:2000	VCCI Class A
CB to IEC 60950 with all country deviations	AS/NZS 3548 Class A
NOM to NOM-019-SCFI	BSMI
CE Marking	CE Marking
	EN55024
	EN50082-1

Table A-7: Catalyst 3550-24-DC Switch Agency Approvals

NEBS
Bellcore GR-1089-CORE
Bellcore GR-63-CORE
Bellcore SR-3580 Level 3

Posted: Wed Dec 18 10:30:05 PST 2002
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