ShoreGear IPBX Voice Switches
B – 2
ShoreTel, Inc.
Input Power
For backup purposes, ShoreTel recommends that all ShoreGear voice switches and the
ShoreWare server be connected to an uninterruptable power supply (UPS). This
ensures that telephone service will continue in the event of a power interruption.
Table B-2 shows the power requirements for the ShoreGear voice switches.
Power and Heat Dissipation
The voice switches dissipate power and heat. ShoreTel recommends that you use the
information provided in Table B-3 to help calculate the ventilation requirements of the
equipment room.
Environmental Requirements
The ShoreGear voice switches require that the environmental specifications provided in
Table B-4 be met.
Reliability and Availability
Each ShoreGear voice switch is an embedded product with no moving parts other than
a highly reliable fan. In addition, the power supply contained within the voice switch
has a very high individual mean time between failure (MTBF), as shown in Table B-5.
Table B-2 ShoreGear Voice Switch Input Power
Parameter
ShoreGear-24 ShoreGear-12 ShoreGear-Teleworker ShoreGear-T1
Input voltage
100–240 VAC
50–60 Hz
100–240 VAC
50–60 Hz
100–240 VAC
50–60 Hz
100–240 VAC
50–60 Hz
Current consumption @110 VAC
(maximum)
1.35A max
0.75A max 0.75A max
0.75A max
Number of grounded 110 VAC
outlets per switch
1
1
1
1
Power consumption (typical) 90W typ
50W typ
50W typ
50W typ
Table B-3 ShoreGear Voice Switch Power and Heat Dissipation
Parameter
ShoreGear-24 ShoreGear-12 ShoreGear-Teleworker ShoreGear-T1
Power dissipation (typical) 90 W typ
50 W typ
50 W typ
50 W typ
Heat Dissipation
307 BTU/hour typ 171 BTU/hour typ 171 BTU/hour typ
171 BTU/hour typ
Table B-4 ShoreGear Voice Switch Environmental Specifications
Parameter
Specification
Operating temperature
0° C to 50° C
Operating humidity (non-condensing)
10% to 90%
Storage temperature
–30° C to 70° C
Table B-5 ShoreGear Voice Switch Dependability
Voice Switch
MTBF (hours) MTTR
(minutes) Availability
ShoreGear-24
72,698
60
99.999%
ShoreGear-12
85,619
60
99.999%
