Figure 3.
NI 6581/6581B Connector Pin Assignments
RESERVED
GND
RESERVED
GND
RESERVED
GND
RESERVED
GND
P2.6
GND
P2.4
GND
P2.2
GND
P2.0
GND
P1.6
GND
P1.4
GND
P1.2
GND
P1.0
GND
P0.6
No Connect
P0.4
GND
P0.2
PFI 2
P0.0
GND
GLOBAL CLOCK 0
GND
RESERVED
RESERVED
GND
GND
RESERVED
GND
P2.7
GND
RESERVED
GND
P2.5
GND
P2.3
GND
P2.1
GND
P1.7
GND
P1.5
GND
P1.3
GND
P1.1
GND
P0.7
PFI 1
P0.5
GND
P0.3
PFI 3
P0.1
GND
CLOCK OUT
GND
68 34
67 33
66 32
65 31
64 30
63 29
62 28
61 27
60 26
59 25
58 24
57 23
56 22
55 21
54 20
53 19
52 18
51 17
50 16
49 15
48 14
47 13
46 12
45 11
44 10
43
9
42
8
41
7
40
6
39
5
38
4
37
3
36
2
35
1
RESERVED
GND
RESERVED
GND
RESERVED
GND
RESERVED
GND
P2.6
GND
P2.4
GND
P2.2
GND
P2.0
GND
P1.6
GND
P1.4
GND
P1.2
GND
P1.0
GND
P0.6
No Connect
P0.4
GND
P0.2
PFI 2
P0.0
GND
GLOBAL CLOCK 1
GND
RESERVED
RESERVED
GND
GND
RESERVED
GND
P2.7
GND
RESERVED
GND
P2.5
GND
P2.3
GND
P2.1
GND
P1.7
GND
P1.5
GND
P1.3
GND
P1.1
GND
P0.7
PFI 1
P0.5
GND
P0.3
PFI 3
P0.1
GND
CLOCK OUT
GND
68 34
67 33
66 32
65 31
64 30
63 29
62 28
61 27
60 26
59 25
58 24
57 23
56 22
55 21
54 20
53 19
52 18
51 17
50 16
49 15
48 14
47 13
46 12
45 11
44 10
43
9
42
8
41
7
40
6
39
5
38
4
37
3
36
2
35
1
DDCA
DDCB
+VB
+VA
GND
DDCA: POR
TS 0-2
DDCB: POR
TS 0-2
Caution
Connections that exceed any of the maximum ratings of input or output
signals on the NI 6581/6581B can damage the device and the chassis. NI is not liable
for any damage resulting from such signal connections. For the maximum input and
NI 6581/6581B Getting Started Guide
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© National Instruments
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5