Cisco Catalyst 3550 Installation Manual page 101

Appendix A Technical Specifications
Table A-3
Environmental Ranges
Operating temperature
Storage temperature
Relativehumidity
Operating altitude
Storage altitude
Power Requirements
Power consumption
DC input voltage
Wire gauge for power
connection
Branch circuit protection
Physical Dimensions
Weight
Dimensions (H x D x W)
78-11358-03
Technical Specifications for the Catalyst 3550-24-DC
32 to 113°F (0 to 45°C)
–13 to 158°F (–25 to 70°C)
10 to 85% (noncondensing)
Up to 10,000 ft (3049 m)
Up to 15,000 ft (4573 m)
55W, 190 Btus per hour
-36 to -72 VDC
18 AWG (6 AWG for protective earth)
5A
10.5 lb (4.8 )
1.75 x 14.4 x 17.5 in. (4.45 x 36.58 x 44.45
cm)
Catalyst 3550 Multilayer Switch Hardware Installation Guide
A-3