Moxa Technologies A51, A60 manual RS-232 Pinouts and Cable Wiring Appendix a

RS-232 Pinouts and Cable Wiring • • Appendix A

A50/A51		DCE
RJ-45 Connector		DB-25 Female
1	DCD	8	DCD
2	DSR	6	DTR
3	RTS	4	CTS
5	TxD	2	RxD
6	RxD	3	TxD
7	GND	7	GND
8	CTS	5	RTS
9	DTR	20	DSR

Type 2: To connect RS-232 side of A50/A51 to a DTE, e.g. terminal or PC COM1/2, with 3-pin wiring if don't care Hardware flow control.

A50/A51		DTE		A50/A51		DTE
RJ-45 Connector		DB-25 Male		RJ-45 Connector		DB-9 Male
5	TxD	3	RxD	5	TxD	2	RxD
6	RxD	2	TxD	6	RxD	3	TxD
7	GND	7	GND	7	GND	5	GND
3	RTS	5	CTS	3	RTS	8	CTS
8	CTS	4	RTS	8	CTS	7	RTS
2	DSR	20	DTR	2	DSR	4	DTR
9	DTR	6	DSR	9	DTR	6	DSR
1	DCD	8	DCD	1	DCD	1	DCD

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