I/O interface pin assignments

The Connect Sensor+ has two I/O connectors—a 9-pin connector and a 12-pin connector.

The pin assignments and signals are shown in the following images and tables.

 

 

9-pin connector details

Pin number	Assignment	Signal
1	SGnd	Serial interface ground
2	SRX/-	Serial interface Modbus -
3	STX/+	Serial interface Modbus +
4	SPwr	Serial interface power output
5	EXT GND IN	External power supply, ground
6	EXT PWR IN	External power supply, positive input
7	DGnd	Digital interface, ground
8	DIO	Digital interface I/O
9	DPwr	Digital interface power output

12-pin connector details

Pin number	Assignment	Signal
1	A4 GND	Analog interface 4, ground
2	A4 IN	Analog interface 4, analog input
3	A4 Pwr	Analog interface 4, power output
4	A3 GND	Analog interface 3, ground
5	A3 IN	Analog interface 3, analog input
6	A3 Pwr	Analog interface 3, power output
7	A2 GND	Analog interface 2, ground
8	A2 IN	Analog interface 2, analog input
9	A2 Pwr	Analog interface 2, power output
10	A1 GND	Analog interface 1, ground
11	A1 IN	Analog interface 1, analog input
12	A1 Pwr	Analog interface 1, power output