User`s guide

PCIe-DIO24 User's Guide Installing the PCIe-DIO24
12
Connecting the board for I/O operations
Main I/O connector
The table below lists the board connectors, applicable cables and compatible accessory boards.
Board connectors, cables, accessory equipment
Connector type
37-pin D-type
Compatible cables
C37FF-x unshielded ribbon cable. x = length in feet. (see Figure 3)
C37FFS-x cable shielded round cable. x = length in feet. (see Figure 4)
Compatible accessory products
(with the C37FF-x or C37FFS-x cable)
SCB-37
CIO-MINI37
CIO-MINI37-VERT
CIO-ERB08
CIO-SERB08
CIO-ERB24
SSR-RACK08
SSR-RACK24
Connector pin out
The I/O connector is a 37-pin, male D-type connector accessible from the rear of the computer through the
expansion backplate. The signals available are direct connections to the digital I/O chips as well as the
computer's internal power supplies. The logic level switch sets the logic level for either 3.3V or 5V (refer to
page 14 for switch information).
Figure 2. I/O connector
* The board has two individual slow blow fuses rated at 1 A. One fuse protects the 12V output at pin 16, and
one fuse protects both +V
DIO
outputs at pin 18 and pin 20.
+V * 20
GND 21
PORT C7 22
PORT C6 23
PORT C5 24
PORT C4 25
PORT C3 26
PORT C2 27
PORT C1 28
PORT C0 29
PORT A7 30
PORT A6 31
PORT A5 32
PORT A4 33
PORT A3 34
PORT A2 35
PORT A1 36
PORT A0 37
DIO 1 IRQ INPUT
2 IRQ ENABLE
3 PORT B7
4 PORT B6
5 PORT B5
6 PORT B4
7 PORT B3
8 PORT B2
9 PORT B1
10 PORT B0
11 GND
12 Open
13 GND
14 Open
15 GND
16 +12V*
17 GND
18 +V *
19 GND
DIO
Logic level
switch
+5V
3V
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