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The following tables provide the generic pin assignments for the OP4520’s DB37 and DB9 connectors. More detailed information can be found in the System Integration document provided with your order.

DB37 Pin Assignments

DB37

pin

Channel pin assignment

DB37

Channel pin assignment


1

+00

20

-00

DB37 Pin Assignments

2

+01

21

-01

3

+02

22

-02

4

+03

23

-03

5

+04

24

-04

6

+05

25

-05

7

+06

26

-06

8

+07

27

-07

9

+08

28

-08

10

+09

29

-09

11

+10

30

-10

12

+11

31

-11

13

+12

32

-12

14

+13

33

-13

15

+14

34

-14

16

+15

35

-15

17

+12V*

36

DGND

18

Vuser

37

Vrtn

19




* Non-isolated, limited to 400mA

DB9 Pin Assignments

DB9F Pin

RS422 OUT CH 00-02

DB9F Pin

RS422 IN CH00-02


1

TX0+

1

RX0+

2

TX1+

2

RX1+

3

TX2+

3

RX2+

4

N.C

4

N.C

5

+12V limited *

5

+12V limited *

6

TX0-

6

RX0-

7

TX1-

7

RX1-

8

TX2-

8

RX2-

9

DGND

9

DGND

DB9F Pin

RS422 OUT CH 03-05

DB9F Pin

RS422 IN CH03-05

1

TX3+

1

RX3+

2

TX4+

2

RX4+

3

TX5+

3

RX5+

4

N.C

4

N.C

5

+12V limited *

5

+12V limited *

6

TX3-

6

RX3-

7

TX4-

7

RX4-

8

TX5-

8

RX5-

9

DGND

9

DGND

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