Appendix A Technical Specifications
A-2
Catalyst 2955 Hardware Installation Guide
78-14944-03
Table A-1 Technical Specifications for Catalyst 2955T-12, 2955C-12, and
Catalyst 2955S-12 Switches
Environmental Ranges
Operating temperature –40 to 140°F (–40 to 60°C)
Storage temperature –40 to 185°F (–40 to 85°C)
Operating humidity 10 to 95% (noncondensing)
Shock 50 g at 11 ms
Operating altitude Up to 10,000 ft (3000 m)
Storage altitude Up to 30,000 ft (9000 m)
Power Requirements
DC input voltages 24 V (18 minimum to 32 V maximum
range)
Note The DC-input power supply is an
SELV circuit, and it can only be
connected to another SELV
circuit.
Power consumption 23 W (maximum)
102 BTUs per hour
Physical Dimensions
Weight 3.1 lbs (1.4 kg)
Dimensions
(W x D x H)
8.07 x 5.03 x 3.75 in. (20.5 x 12.78 x 9.53
cm)
