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Signal Connections Chapter 3
PC-OPDIO-16 User Manual 3-2 © National Instruments Corporation
I/O Connectors
Figure 3-1 shows the pin assignments for the PC-OPDIO-16 I/O connector.
VCCO0 1 2 VOUT0
COM0 3 4 VCCO1
VOUT1 5 6 COM1
VCCO2 7 8 VOUT2
COM2 9 10 VCCO3
VOUT3 11 12 COM3
VCCO4 13 14 VOUT4
COM4 15 16 VCCO5
VOUT5 17 18 COM5
VCCO6 19 20 VOUT6
COM6 21 22 VCCO7
VOUT7 23 24 COM7
IGND0 25 26 VIN0
IGND1 27 28 VIN1
IGND2 29 30 VIN2
IGND3 31 32 VIN3
IGND4 33 34 VIN4
IGND5 35 36 VIN5
IGND6 37 38 VIN6
IGND7 39 40 VIN7
NC 41 42 NC
NC 43 44 NC
NC 45 46 NC
NC 47 48 DGND
+5 V 49 50 DGND
Figure 3-1. PC-OPDIO-16 I/O Connector Pin Assignments
You can use the CB-50 LP (low cost) or CB-50 I/O connector block and the NB1 cable with the
PC-OPDIO-16 for your prototyping needs. The following table describes the connector pins on
the PC-OPDIO-16 I/O connector.