Real Time Devices AD1200 User Manual page 139

If you are using DMA Eansfer, you must enter the channel number which conesponds to the jumper settings in
the DMA channel block. Valid channels numbers are I and 3.
The next two blocks, gain and loss, are provided so that you can make adjustments for external gain or loss,
other than the programmable gain settings available on the board. If your input signal is externally attenuated, then
you can adjust for this by setting a value other than I for loss. Ifyou have an external gain factor, then you can
adjust for this condition. Numbers must be entered as whole decimal values. The factory default setting for gain and
loss is 1.
For a bipolar input range, an X should be placed before Bipolar on the screen (default setting). For unipolar
operation, remove the X.
D/A Parameters (ADA1200 Only). Six D/A board parameters are listed: resolution, number of channels,
active DMA channel, gain, loss, and input voltage polarity. Resolution and number of channels are fixed. For the
ADAI200, DMA is not used and should be left blank. Gain and loss are provided so that you can make adjustments
for external gain or loss, as described above for the A/D parameters. For a bipolar output range, an X should be
placed before Bipolar on the screen (default setting). For unipolar operation, remove the X.
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