Lindy RS-422/485 - Manual (Page 8)

LINDY Serial Communication Boards have one DB37 female port for the 4 port
version and one DB78 female port for the 8 port version. The pin assignments
of the DB37 female port and the DB78 female port are shown below and on the
following page.
LINDY DB37 female 4 Port Serial Communication Boards Pin Assignment
Port
Signal
1 2 3 4
TxD- 34 11 25 2
TxD+ 37 14 28 5
RxD+ 19 33 10 24
RxD- 16 30 7 21
RTS- 17 31 8 22
RTS+ 18 32 9 23
CTS+ 36 13 27 4
CTS- 15 29 6 20
RS-422
GND 35 12 26 3
Port
Signal
1 2 3 4
Data+ 37 14 28 5
Data- 34 11 25 2
RTS- 17 31 8 22
RTS+ 18 32 9 23
CTS+ 36 13 27 4
CTS- 15 29 6 20
RS-485
GND 35 12 26 3
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