Figure B-1. 68-Pin Digital Connector For Any Digital Accessory - National Instruments DAQ PCI-4451 User Manual

Appendix B Pin Connections
PCI-4451/4452 User Manual
FREQ_OUT
PFI9/GPCTR0_GATE
GPCTR0_OUT
PFI8/GPCTR0_SOURCE
UPDATE*
PFI6/WFTRIG
PFI4/GPCTR1_GATE
GPCTR1_OUT
PFI3/GPCTR1_SOURCE
PFI0/TRIG1 (EXT_TRIG)
PFI1/TRIG2 (PRETRIG)
CONVERT*
RESERVED1
EXTSTROBE*

Figure B-1. 68-Pin Digital Connector for any Digital Accessory

B-2
1 35
DGND
2 36
DGND
3 37
DGND
4 38 DGND
5 39 DGND
DGND
6 40
PFI7
7 41 DGND
8 42 DGND
9 43
DGND
10 44 DGND
DGND
11 45
DGND
12 46
13 47 DGND
DGND
14 48
DIO(7) 15 49 DGND
DIO(6) 16 50 DGND
DIO(5) 17 51 DGND
DIO(4) 18 52
DGND
DIO(3)
19 53
DGND
DGND
20 54
DIO(2)
21 55 DGND
DIO(1)
22 56 DGND
DIO(0)
23 57
DGND
+5 V
24 58
+5 V
N/C
25 59
DGND
N/C
26 60
DGND
N/C
27 61
DGND
N/C
28 62
DGND
N/C
29 63
DGND
N/C
30 64 DGND
N/C
31 65
DGND
N/C
32 66
DGND
N/C 33 67 DGND
N/C
34 68
DGND
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