Appendix A      Technical Specifications
A-2
Catalyst 2950 Desktop Switch Hardware Installation Guide
78-11157-02
Physical Dimensions
Weight 6.5 lb (3 kg)
Dimensions 
(H x W x D)
1.72 x 17.5 x 9.52 in. 
(4.36 x 44.45 x 24.18 cm)
Table A-2 Technical Specifications for Catalyst 2950G-12-EI, 2950G-24-EI, and 
2950G-48-EI Switches
Catalyst 2950G-12-EI and 
2950G-24-EI Switches
Catalyst 2950G-48-EI 
Switch
Environmental Ranges
Operating 
temperature
32 to 113°F
(0 to 45°C)
32 to 113°F
(0 to 45°C)
Storage 
temperature
–13 to 158°F 
(–25 to 70°C)
–13 to 158°F 
(–25 to 70°C)
Operating 
humidity
10 to 85% 
(noncondensing)
10 to 85% 
(noncondensing)
Operating 
altitude
Up to 10,000 ft (3000 m) Up to 10,000 ft (3000 m)
Storage 
altitude
Up to 15,000 ft (4570 m) Up to 15,000 ft (4570 m)
Power Requirements
AC input 
voltage
100 to 127/200
to 240 VAC (autoranging) 
50 to 60 Hz
100 to 127/200
to 240 VAC (autoranging) 
50 to 60 Hz
DC input 
voltage
+12V @4.5A +12V @4.5A
Power 
consumption
30W (maximum)
102 Btus per hour
45W (maximum)
154 Btus per hour
Table A-1 Technical Specifications for Catalyst 2950-12, 2950-24, 2950C-24, 
and 2950T-24 Switches (continued)