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Power Supply Specifications
The power supplies are universal and capable of functioning worldwide without using voltage
jumpers or switches. They meet IEC 61000-4-5 surge voltage requirements and are autoranging in
terms of accommodating input voltages and line frequencies. Each power supply has its own built-
in fan for cooling, pushing the air towards the port side of the switch.
Table A-2
Table A-2
Specification
Outlet
Maximum output from each power supply 126 Watts, with fans operating
Maximum system power consumption
Input voltage
Input line frequency
Harmonic distortion
BTU rating
Inrush current
Input line protection
Environmental Requirements
Table A-3
Table A-3Environmental Requirements
Condition
Temperature (operating)
Humidity (operating)
Altitude
Shock
Vibration
Air flow
SilkWorm 3800 Hardware Reference
lists the power supply specifications of the SilkWorm 3800.
Power Supply Specifications
lists the acceptable environmental ranges for operating and non-operating conditions.
Acceptable Range During
Operation
° to 40 ° Celsius
10
°
(50
to 104
20% to 85% RH non-condensing,
at 40 ° C, with maximum gradient
of 10% per hour
0 to 3 kilometers (10,000 feet)
(operating)
above sea level
4G, 11MS duration, half sine wave 20G, 11MS duration, sq.wave
(operating)
0.5 Gs, 5-500 Hz
(operating)
25 cubic feet/minute (42.5 cubic
meters/hour)
Product Specifications
Value
Correctly wired and earth-grounded
90 - 102 Watts (depending on transceiver vendor)
100 - 240 VAC (nominal 80% efficiency), auto-
ranging
47 - 63 Hz
Active power factor correction per IEC1000-3-2
170 watts x 3.412 BTU/hr/watts = 580 BTU/hr
10 amps maximum, > 300 usec - hot/cold start
Fused in both hot & neutral lines
Acceptable Range During
Non-operation
°
-25
°
Farenheit)
(-13
10% to 85% RH non-condensing,
at 70° Celsius
0 to 12 kilometers above sea level
2.0 Gs,
None required.
A
°
to 70
Celsius
°
°
to 158
Farenheit)
5-500 Hz
A-3
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