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DACl
Fig. 1-10 - DAC 1 Output Voltage Range Jumper, P9
P10 - DAC 2 Output Voltage Range (Factory Setting: +5 to -5 volts)
This header connector, shown in Figure l-l l, sets the output voltage range for DAC 2 at 0 to +5, +5, 0 to +10,
or +10 volts. Two jumpers must be installed, one to select the range and one to select the multiplier. The two
rightmost jumpers select the range, brpolar (15) or unipolar (5). The two leftmost jumpers select the multiplier, X2
or Xl. When a jumper is on the X2 multiplier pins, the range values become +10 and 10. The table below shows the
four possible combinations of jumper settings, and the diagram shows the factory setting. This header does not have
to be set the same as P9.
Voltage Range
and Polarity
Jumpers (Left to Right)
x2
x1
r5
5
-5 to +5 volts
OFF
ON
ON
OFF
0 to +5 volts
OFF
ON
OFF
ON
-1 0 to +10 volls
ON
OFF
ON
OFF
0 to +10 volts
ON
OFF
OFF
ON
P 1 0
DAC2
x 2 x 1 r 5 5
Fig. 1-11 - DAC 2 Output Vottage Range Jumper, pl0
Pll - A/D Data Word Bit State Set (Factory Setting: +/-)
This header connector, shown in Figure l-12, sets the state of the unused four bits in the 8-bit MSB of ttre l6-bit
AID data word. This header ensures that ttrese four topmost bits are set at 0 for unipolar conversions and at the same
state as the most, significant bit of the 12-bit A/D converted data for bipolar conversions. Chapter 4, BA + 1,
explains this in more detail. NOTE: Pll and P4 must be set the same for proper board operation.
Set P4 to the same polarityl
P l 1
Fig.1-12 -AlD Data Word Bit State Set Jumper, p11
P9
+l-
:II:
x 2 x 1 + 5 5
:II:
l-8
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