CHAPTER 1 –
I
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t
r
od
u
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SPI-6941-LV 5
1
.
6
Pow
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qui
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Your system requires a clean, steady power source for reliable performance of the high
frequency CPU on the SPI-6941-LV Industrial CPU card, the quality of the power supply is
even more important. For the best performance make sure your power supply provides a range
of 4.75 volts minimum to 5.25 volts maximum DC power source.
Powe
r
Co
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s
u
mptio
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For typical configurations, the CPU card is designed to operate with at least a 200 W
power supply. A higher-wattage power supply should be used for heavily-loaded configurations.
The power supply must meet the following requirements:
Rise time for power supply: 2 ms to 20 ms
The following table lists the power supply’s tolerances for DC voltages:
DC
V
o
l
t
a
g
e
Acceptable Tole
r
a
n
ce
+
5
V
±
5
%
+
5
VSB
(
s
t
andb
y
)
±
5
%
+
12
V
±
5
%
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