Bowers M1 - Communication Ports; THE RS232 COMMUNICATION PORT

M1 – M3 Display units
Page 19
2.3.9. THE RS232 COMMUNICATION PORT
The M3 is fitted with a RS232 port. It allows linking the M1/M3 to PC or an external
system. The port configuration is as following
9600 bauds, 8 bits, 1 stop bit, no parity
CONNECTOR PINOUT
It is fitted with a SUBD 9 pins female connector.
Pin
Signal
Direction
Description
1
Not used
2
RX
Input
Reception of data
3
TX
Output
Transfer of data
4
IN1
Input
Do not use. Only for firmware update
5
Gnd
-
Ground
6
Not used
7
IN2
Input
Do not use. Only for firmware update
8 &9
Not used