rs232422485

RS232

Pin	Signal Na me	Signal Description
1	DCD	Data C ani er Detect/
2	RXD	Receive Data
3	TXD	Transmit Data
4	DTR	DataTenninal Ready
5	GND	Signal Ground
6	DSR	Data Set Ready
7	RTS	Reąuest To Send
8	CTS	Clear To Send
9	YCCCOMl	Yoltage output: voltage select setting by J1

RS485

Pin	Nazwa sygnału	Opis sygnału
1	DCD	485-, RS-485 transmission line: negative
3	TXD	485+: RS-485 transmission line: positive

RS422

Pin	Nazwa sygnału	Opis sygnału
1	DCD	422TXD-: RS-422 transmission line: negative
2	RXD	422RXD+: RS-422 receiving line: positive
3	TXD	422TXD+: RS-422 transmission line: positive
4	DTR	422RXD-: RS-422 receiving line: negative