National Instruments PXI-7811 User Manual page 60

Appendix A Connecting I/O Signals
You can plug each of these 50-pin headers directly into an 8-, 16-, 24-,
or 32-channel SSR backplane for digital signal conditioning. One of the
50-pin headers contains DIO<0..23> from the NI 78xxR RDIO connector.
These lines correspond to Slots <0..23> on an SSR backplane in sequential
order. The other 50-pin header contains DIO<24..39> from the NI 78xxR
RDIO connector. These lines correspond to Slots <0..15> on an SSR
backplane in sequential order. You can connect to an SSR backplane
containing a number of channels unequal to the number of lines on the
NSC68-5050 cable header. In this case, you have access only to the
channels that exist on both the SSR backplane and the NSC68-5050 cable
header you are using.
Figure A-4 shows the connector pinouts when using the NSC68-5050
cable.
DIO23 1
DIO22 3
DIO21 5
DIO20 7
DIO19 9
DIO18 11
DIO17 13
DIO16 15
DIO15 17
DIO14 19
DIO13 21
DIO12 23
DIO11 25
DIO10 27
DIO9 29
DIO8 31
DIO7 33
DIO6 35
DIO5 37
DIO4 39
DIO3 41
DIO2 43
DIO1 45
DIO0 47
+5V 49
DIO 0–23 Connector
Pin Assignment
R Series Multifunction RIO User Manual
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2 No Connect No Connect
4 No Connect No Connect
6 No Connect No Connect
8 No Connect No Connect
10 No Connect No Connect
12 No Connect No Connect
14 No Connect No Connect
16 No Connect No Connect
18 No Connect
20 DGND
22 DGND
24 DGND
26 DGND
28 DGND
30 DGND
32 DGND
34 DGND
36 DGND
38 DGND
40 DGND
42 DGND
44 DGND
46 DGND
48 DGND
50 DGND
Figure A-4. Connector Pinouts when Using the NSC68-5050 Cable
A-8
1 2 No Connect
3 4 No Connect
5 6 No Connect
7 8 No Connect
9 10 No Connect
11 12 No Connect
13 14 No Connect
15 16 No Connect
DIO39 17 18 No Connect
DIO38 19 20 No Connect
DIO37 21 22 No Connect
DIO36 23 24 No Connect
DIO35 25 26 No Connect
DIO34 27 28 No Connect
DIO33 29 30 No Connect
DIO32 31 32 DGND
DIO31 33 34 DGND
DIO30 35 36 DGND
DIO29 37 38 DGND
DIO28 39 40 DGND
DIO27 41 42 DGND
DIO26 43 44 DGND
DIO25 45 46 DGND
DIO24 47 48 DGND
+5V 49 50 DGND
DIO 24–39 Connector
Pin Assignment
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