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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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