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Chapter 3
Making Signal Connections
For input ports, connect the higher voltage to the DIG+ pin and the lower voltage to
Note
the DIG– pin. For output ports, you can connect signals to the two pins of each line without
regard to which voltage is higher. The output lines consist of solid-state relays and act as
bidirectional switches.
6527 User Manual
Input
DIG+2.7
1
51
DIG–2.7
2
52
DIG+2.6
3
53
DIG–2.6
4
54
DIG+2.5
5
55
DIG–2.5
6
56
DIG+2.4
7
57
DIG–2.4
8
58
DIG+2.3
9
59
DIG–2.3
10
60
DIG+2.2
11
61
DIG–2.2
12
62
DIG+2.1
13
63
DIG–2.1
14
64
DIG+2.0
15
65
DIG–2.0
16
66
DIG+1.7
17
67
DIG–1.7
18
68
DIG+1.6
19
69
DIG–1.6
20
70
DIG+1.5
21
71
DIG–1.5
22
72
DIG+1.4
23
73
DIG–1.4
24
74
DIG+1.3
25
75
DIG–1.3
26
76
DIG+1.2
27
77
DIG–1.2
28
78
DIG+1.1
29
79
DIG–1.1
30
80
DIG+1.0
31
81
DIG–1.0
32
82
DIG+0.7
33
83
DIG–0.7
34
84
DIG+0.6
35
85
DIG–0.6
36
86
DIG+0.5
37
87
DIG–0.5
38
88
DIG+0.4
39
89
DIG–0.4
40
90
DIG+0.3
41
91
DIG–0.3
42
92
DIG+0.2
43
93
DIG–0.2
44
94
DIG+0.1
45
95
DIG–0.1
46
96
DIG+0.0
47
97
DIG–0.0
48
98
+5 V
49
99
GND
50
100
Figure 3-1. 6527 Connector Pin Assignments
3-2
Output with Readback
DIG+5.7
DIG–5.7
DIG+5.6
DIG–5.6
DIG+5.5
DIG–5.5
DIG+5.4
DIG–5.4
DIG+5.3
DIG–5.3
DIG+5.2
DIG–5.2
DIG+5.1
DIG–5.1
DIG+5.0
DIG–5.0
DIG+4.7
DIG–4.7
DIG+4.6
DIG–4.6
DIG+4.5
DIG–4.5
DIG+4.4
DIG–4.4
DIG+4.3
DIG–4.3
DIG+4.2
DIG–4.2
DIG+4.1
DIG–4.1
DIG+4.0
DIG–4.0
DIG+3.7
DIG–3.7
DIG+3.6
DIG–3.6
DIG+3.5
DIG–3.5
DIG+3.4
DIG–3.4
DIG+3.3
DIG–3.3
DIG+3.2
DIG–3.2
DIG+3.1
DIG–3.1
DIG+3.0
DIG–3.0
+5 V
GND
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