Moxa Technologies RS-232 Interface, RS-422 Interface, CP-134U RS-232, CP-134U RS-422

RS-232 Interface

When ports 1 and/or 2 are configured for the RS-232 interface, the pinouts are as shown below.

				CP-134U (RS-232)
	Port 1			Port 2
13		TxD	9	TxD
14		RxD	10	RxD
15		RTS	11	RTS
28		CTS	24	CTS
29		DTR	25	DTR
30		DSR	26	DSR
42		DCD	39	DCD
44		GND	41	GND

RS-422 Interface

The RS-422 standard uses a balanced voltage digital interface to allow 10 Mbps communication over cables of up to 4000 feet in length. Ten receivers can be connected to any one driver for broadcasting systems.

CP-134U (RS-422)

	Port 1		Port 2		Port 3		Port 4
13	RxD+(B)	9	RxD+(B)	5	RxD+(B)	1	RxD+(B)
14	TxD+(B)	10	TxD+(B)	6	TxD+(B)	2	TxD+(B)
15	RTS+(B)	11	RTS+(B)	7	RTS+(B)	3	RTS+(B)
28	CTS+(B)	24	CTS+(B)	20	CTS+(B)	16	CTS+(B)
29	RxD-(A)	25	RxD-(A)	21	RxD-(A)	17	RxD-(A)
30	RTS-(A)	26	RTS-(A)	22	RTS-(A)	18	RTS-(A)
42	TxD-(A)	39	TxD-(A)	35	TxD-(A)	31	TxD-(A)
43	CTS-(A)	40	CTS-(A)	36	CTS-(A)	32	CTS-(A)
44	GND	41	GND	37	GND	33	GND

5-2 Industio CP-134U Series User’s Manual