COMMUNICATION
Data Communication
PORT SELECTION:
PORT: Select USB port or RS485 port as communication port.
RS485 PORT:
RS485 is 6P6C socket
Pin1&2 is power DC 6 to 9V
Pin 3 is RS485 A
Pin 4 is RS485 B
Pin 5&6 is ground.
USB port:
It is not standard USB protocol, but serial port
Pin 1 is VBUS to provide 5VDC
Pin 2 is D-, RS232 TX transmission pin in cmos 3.3V level
Pin 3 is D+, RS232 RX transmission pin in cmos 3.3V level
Pin 4 is not connected
Pin 5 is GND ground
** can order a RS232 adapter to convert to USB serial port and connect to computer.
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