46
4-3-2. Pin assignment of the connectors
The pin assignment of the D-SUB 9-pin female connector is shown below:
Pin number
Signal
1
GND
2
TX-A
3
RX-B
4
GND
5
NC
6
GND
7
TX-B
D-SUB 9-pin
8
RX-A
Female
9
GND
The A and B is defined as follows:
B
A
+
-
1
5
6
9