‹6.0 Pin Assignments & Cable Wiring

The pin assignments of the DB9 and DB25 Male port are stated as below:

Type

DB9M

DB25M

Signal

 

 

TxD-

1

8

TxD+

2

3

RxD+

3

2

RS-422 RxD-

4

20

RTS-

6

6

RTS+

7

4

CTS+

8

5

CTS-

9

22

GND

5

7

Type

DB9M

DB25M

Signal

 

 

Data+

2

3

Data-

1

8

RS-485 RTS-

6

6

RTS+

7

4

CTS+

8

5

CTS-

9

22

GND

5

7

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Lindy RS-422/485 user manual ‹ 6.0 Pin Assignments & Cable Wiring, TxD TxD+, Data+