Manual 104-QUAD-8
20
Function
CH# Pin
Pin CH# Function
Ground
5
1
2
5 Fused +5V
Index Negative Input
5
3
4
5 Index Positive Input
Quadrature A Negative Input
5
5
6
5 Quadrature A Positive Input
Quadrature B Negative Input
5
7
8
5 Quadrature B Positive Input
Ground
6
9
10
6 Fused +5V
Index Negative Input
6
11
12
6 Index Positive Input
Quadrature A Negative Input
6
13
14
6 Quadrature A Positive Input
Quadrature B Negative Input
6
15
16
6 Quadrature B Positive Input
Ground
7
17
18
7 Fused +5V
Index Negative Input
7
19
20
7 Index Positive Input
Quadrature A Negative Input
7
21
22
7 Quadrature A Positive Input
Quadrature B Negative Input
7
23
24
7 Quadrature B Positive Input
Ground
8
25
26
8 Fused +5V
Index Negative Input
8
27
28
8 Index Positive Input
Quadrature A Negative Input
8
29
30
8 Quadrature A Positive Input
Quadrature B Negative Input
8
31
32
8 Quadrature B Positive Input
No connection
33
34
No connection
Table 6-2:
Connector Pin Assignments - P3
Notes
:
1.
When using single-ended Encoders leave the Negative Input open (internal 1.4V threshold
level) and connect the Encoder (A, B, Index) output lead to the corresponding Positive Input pin.
2.
Both single-ended and differential Encoders require a ground connection between the Encoder
and the PC/104 board to eliminate the adverse effects of exceeding the common mode range
when an external power supply is used.
3.
When the Fused +5V source is used to power your encoders, (i.e. on pins 2, 10, 18, & 26)
Ground (i.e. on pins 1, 9, 17, & 25) is a required return path.
