Moxa Technologies CP-118EL Male DB25 (OPT8B+/C+), Female DB25 (OPT8A+/S+)

PCI Express Board User’s Manual Pin Assignments

Male DB25 (OPT8B+/C+)

113

	14	25
Pin	RS-232	RS-422 /	2-wire RS-485
		4-wire RS-485
2	TxD	RxD+(B)	Data+(B)
3	RxD	TxD+(B)	---
4	RTS	---	---
5	CTS	---	---
6	DSR	---	---
7	GND	GND	GND
8	DCD	TxD-(A)	---
20	DTR	RxD-(A)	Data-(A)

Female DB25 (OPT8A+/S+)

131

	25	14
Pin	RS-232	RS-422 /	2-wire RS-485
		4-wire RS-485
2	RxD	TxD+(B)	---
3	TxD	RxD+(B)	Data+(B)
4	CTS	---	---
5	RTS	---	---
6	DTR	RxD-(A)	Data-(A)
7	GND	GND	GND
8	DCD	TxD-(A)	---
20	DSR	---	---

5-4