KBox B-201-CFL - User Guide, Rev 1.3
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10.6.3.
Power Protection
The external power supply incorporates protection and supply features such as over current, over temperature , over
voltage and brownout protection, to protect the product against fluctuations and interruptions in the delivered mains
power supply and help to ensure operation without loss of data or damage to the product.
Table 13: External AC/DC Power Supply Protection Features
Amount
Condition
Description
Holdup Time
≥10 sec
@ 100 VAC or 240 VAC / full load,
output voltage remains regulated
Time the power supply can bridges drops in
mains power without fluctuations in the
output voltage.
Brownout
Set at 60 VAC to 70 VAC
Under voltage condition due to a drop in the
mains power supply voltage
If there is an unintentional voltage drop in the mains power supply for longer than the
specified holdup time (brownout), all supply voltages should be shut down and remain in the
off state long enough to allow internal voltages to discharge sufficiently. During the off
state time do not disconnect an add cables to/from the I/O connectors. Failure to observe
the off state time means that parts of the product or attached peripherals may work
incorrectly or suffer a reduction of MTBF.
The minimum off state time, to allow internal voltages to discharge, depends on the power
supply used and additional electrical factors. To determine the required off state time, each
case must be considered individually. For more information, contact Kontron Support.
10.6.4.
Power Consumption
The total power consumption depends on the mainboard capacity, system memory and system expansion. The
overall power consumption must not exceed the product’s maximum power supply rating, see Table 11 and Table 12.
If expansion cards increases the total power consumption above the maximum power supply rating, contact Kontron
Support.
Table 14: Power Consumption Estimation
Components
Maximum Power Consumption
Mai Pro RAM
132 W
SSD
4 W
Total
136 W
10.6.5.
Ground
Signal ground is connected to the chassis GND inside the chassis.
