© National Instruments Corporation 23 NI Digital Waveform Generator/Analyzer Guide
Figure 10. NI 656X Front Panel Connectors
NI PXI-6561
100 MHz LVDS DIO
DIGITAL DATA & CONTROL
PFI 0
ACCESS ACTIVE
CLK
IN
CLK
OUT
GND
PFI_1
GND
PFI_2
GND
PFI_3
GND
RESERVED(NC)
GND
DIO 0
GND
DIO 1
GND
DIO 2
GND
DIO 3
GND
DIO 4
GND
DIO 5
GND
DIO 6
GND
DIO 7
GND
DIO 8
GND
DIO 9
GND
DIO 10
GND
DIO 11
GND
DIO 12
GND
DIO 13
GND
DIO 14
GND
DIO 15
GND
STROBE
GND
DDC CLK OUT LVDS
GND
RESERVED(NC)
GND
DDC CLK OUT LVPECL
GND
PFI_1*
PFI_2*
PFI_3* / GND
RESERVED(NC)
DIO 0*
DIO 1*
DIO 2*
DIO 3*
DIO 4*
DIO 5*
DIO 6*
DIO 7*
DIO 8*
DIO 9*
DIO 10*
DIO 11*
DIO 12*
DIO 13*
DIO 14*
DIO 15*
STROBE*
DDC CLK OUT LVDS*
RESERVED(NC)
DDC CLK OUT LVPECL*
1
32
4
65
7
98
10
12 11
13
15 14
16
18 17
19
21 20
22
24 23
25
27 26
28
30 29
31
33 32
34
36 35
37
39 38
40
42 41
43
45 44
46
48 47
49
51 50
52
54 53
55
57 56
58
60 59
61
63 62
64
66 65
67
69 68
70
72 71
73