224 Planning and Installation Guide ShoreTel 14
Site Requirements and Preparation Power and Heat Dissipation
12
Table 48 shows the power requirements for the half-width ShoreTel voice switches.
Power and Heat Dissipation
The voice switches dissipate power and heat. ShoreTel recommends that you use the information in
Table 49 and Table 50 to help calculate the ventilation requirements of the room that contains the
switches.
Number of grounded 110 VAC
outlets per switch
11 1
Power consumption (typical) 90W typical 50W typical 50W typical
Table 48: ShoreTel Voice Switch Power Input (Half-Width Switches)
Parameter
ShoreTel 90
ShoreTel 90BRI
ShoreTel 50
ShoreTel 30
ShoreTel 220T1
ShoreTel 220T1A
ShoreTel 220E1
ShoreTel T1k
Input voltage 100–240 VAC
50–60 Hz
100–240 VAC
50–60 Hz
Current consumption @110 VAC (maximum) 1A max 1A max
Number of grounded 110 VAC outlets per switch 1 1
Power consumption (typical) 40W 17W
Table 49: ShoreTel Voice Switch Power and Heat Dissipation (Full-Width Switches)
Parameter SG 120/24 SG 60/12 SG 40/8 SG T1 SG E1
Power dissipation
(typical)
90 W typ 90 W typ 50 W typ 50 W typ 50 W typ
Heat dissipation 215 BTU/hour 140 BTU/hour 85 BTU/hour 61 BTU/
hour
65 BTU/hour
Table 47: ShoreTel Voice Switch Power Input (Full-Width Switches) (Continued)
Parameter ShoreTel 120
ShoreTel 60 ShoreTel 40 ShoreTel T1
ShoreTel E1
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