6.6 CN3 temperature sensor interface
The temperature sensor interface CN3 is a 4PIN green terminal. Table
6.6.1 shows the definition of temperature sensor. The user directly inserts
the supporting connection line with terminal.
Table 6.6.1
Pin
Signal
Definition
Description
+5V power supply, maximum output is
1
+5V_out Sensor P interface
500mA
2
Light
Sensor L interface
3
Temp
Sensor T interface
4
GND
Sensor G interface
6.7 HMI touch screen interface
The HMI interface is a 4PIN green terminal and power supply to and
communication with HMI by the mainboard are performed via the port.
Table 6.7.1 shows the definition of HMI interface.
Table 6.7.1
Pin
Signal
Definition
Description
1
OVCC +24V power output, 500mA
Panel power supply
Connecting to the HMI sending Serial port communication TXD signal
2
TXD_HMI
end
Connecting to the HMI
3 RXD_HMI
receiving end
Serial port communication RXD signal
4
GND
Power reference ground
21
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