3Com 52x, 32x Universal to RS-232 Direct Connect Cable, Universal to RS-232 Direct-Connect Cable

2-16CHAPTER 2: OVERVIEW

UNIVERSAL to RS-232 Direct Connect Cable

This cable connects the UNIVERSAL port on the bridge/router to the

RS-232 port on an SNA legacy device.

To UNIVERSAL port on bridge/router																						To SNA device
1	2	3	4	5	6	7	8	9	10		11	12		13		14	15 16 17 18		19	1	2	3	4	5	6	7	8	9	10	11 12		13
20 21		22	23	24	25	26	27 28			29	30		31		32 33		34 35	36 37		14	15	16	17 18		19	20	21	22 23		24	25
		37-pin female connector																		25-pin male connector

Name		Abbr	Pin	Pin	Abbr	Name
Shield		Shield	1	1	Shield	Shield
Clear to Send		CTS	4	5	RTS	Request to Send
Transmit Data		TxD	14	3	RxD	Receive Data
Receive Data		RxD	36	2	TxD	Transmit Data
Request to Send		RTS	28	8	DCD	Carrier Detect
Data Set Ready		DSR	16	20	DTR	DTE Ready
Data Terminal Ready		DTR	32	6	DSR	DCE Ready
Receive Clock		RxC	18	24	TxC (out)	Transmit Clock
Transmit Clock TxC (out)			10	15	TxC (in)	Transmit Clock
				17	RxC	Receive Clock
Signal Ground		SG	19	7	SG	Signal Ground
Figure 2-13	UNIVERSAL to RS-232 Direct-Connect Cable

You can order this cable from 3Com (part number 3C8123).