6
connector (plug). The connector has four pins and it is a combined power supply and serial connector.
The table below describes the function of each pin.
Pin
Symbol
Description
1
+VDC
Power supply positive pin, 18…28 VDC
2
D0
RS-485 bus D0 pin
3
GND
Power supply negative pin, RS-485 bus ground
4
D1
RS-485-bus D1 pin
The diagram below presents the connector pinout looking towards the base station’s female
connector. The same pinout is valid for an opened male connector looking towards the terminal
screws. Please note the polarizator location in the diagram between pins 1 and 2. The detachable M12
connector supplied with the base station has numbering inside the connector next to the screw
terminals.
The picture below shows the male connector pinout looking into the connector.
Polarizator
