Measurement Computing CIO-EXP32 - Manual (Page 14)

CIO-EXP32 User's Guide Installing the CIO-EXP32
You can alternatively connect the C-PCPOWER-10 to a BP-POWER adaptor to bring PC power out of the
computer. This adaptor provides three standard power connectors mounted on a backplate. Details on this
product are available on our web site at
www.mccdaq.com/products/accessories.aspx
.
Caution!
Be careful not to pinch the cable when you replace the cover—if this cable is cut, the resulting short
circuit can damage the computer.
4.
5.
Connect the other end of the power cord to the connector labeled "
OPTIONAL EXTERNAL +5V POWER
"
(
P15
) on the CIO-EXP32. This end is keyed also. Refer to for the location of this connector. Figure 3
Slide the power source select switch (
S3
) to the
EXT
position.
A/D board type
Use the 4-pin jumper labeled
A/D BOARD TYPE
to configure the CIO-EXP32 for use with the DAS08 family
of boards or the DAS16 family of boards. Place the jumper in the position for the type of A/D board you are
using with the CIO-EXP32. Fig
shows the jumper configured with its default setting of DAS08. ure 6
Figure 6. Board type select jumper
LLGND
P2, pin19
P2, pin 18
DAS16 DAS08
A/D Channel for EXP Output
Select a separate A/D channel for each CIO-EXP32 output that you plan to use. Each CIO-EXP32 has three
potential signals — the output of each of the two banks of 16 multiplexed inputs, and the output of the CJC
circuit. The output of the CIO-EXP32 selected channel is an input to the A/D board.
Three rows of 16 jumper pairs located near the 37-pin connectors are labeled with A/D board channel numbers
(see
). These channel numbers designate which of the A/D board's input channels will be connected to
the MUX board’s output(s). Each CIO-EXP32 output, if used, must be exclusively assigned to an A/D channel
using these jumpers. In other words, for all CIO-EXP32 boards attached to an A/D board, only one jumper on
any of the jumper blocks should be assigned to a particular channel.
Figure 7
Figure 7
Figure 7. EXP Channel Select and CJC Select jumper blocks
shows the layout of the jumper blocks on the CIO-EXP32.
EXP
0-15
CJC
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
EXP OUTPUT TO DAS
CJC OUTPUT TO DAS
EXP
16-31
DAS8/16 DAS16 ONLY
These jumpers are for boards with
16 channels only, such as the
CIO-DAS16 in 16 channel mode.
The CIO-EXP32 has two banks of 16 input channels. Each bank is multiplexed into one output. These two
outputs connect to the jumper block labeled
EXP OUTPUT TO DAS
. This jumper block determines which
analog input channels of the A/D board in the computer is connected to the outputs from the CIO-EXP32 board.
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