The Rs232 Communication Port; Mini-Usb Connector - Metro DataVac M1 User Manual

3.3.9. 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 configuration is as following
CONNECTOR PINOUT
It is fitted with a SUBD 9 pins female connector.
Pin Signal
1
2
3
4 IN1
5 Gnd
6
7 IN2
8 &9

3.3.10. MINI-USB connector

The mini-USB connector has 2 functions
1. Power supply through a wall mounted transformer. This transformer supplies a
regulated 5V/1A DC voltage.
2. Measurement transmission. If you connect your M3 to a PC, the PC will detect
and install automatically the M3 as a standard USB keyboard with the standard
drivers of your operating system (Windows, Mac OS etc..). When you will send
the measurement, the value will be written on your PC screen where your
cursor is, in the same way as it would have been typed with a keyboard.
Message that appears when the M1/M3 has been correctly installed:
20
9600 bauds, 8 bits, 1 stop bit, no parity
Direction Description
Not used
RX Input Reception of data
TX Output Transfer of data
Input Do not use. Only for firmware update
- Ground
Not used
Input Do not use. Only for firmware update
Not used
M1 – M3 AG