SMC Networks 10/100 manual DB-9 Port Pin Assignments, Console Port to 9-Pin DTE Port on PC

PIN ASSIGNMENTS

DB-9 Port Pin Assignments

EIA Circuit	CCITT Signal	Description	Switch’s	PC DB9
			DB9 DTE	DTE Pin
			Pin #	#
BB	104	RxD (Received Data)	2	2
BA	103	TxD (Transmitted Data)	3	3
AB	102	SGND (Signal Ground)	5	5

No other pins are used.

Console Port to 9-Pin DTE Port on PC

Switch’s 9-Pin Serial			Null Modem		PC’s 9-Pin DTE Port
	Port
2	RXD	<	---------TXD ------------		3 TXD
3	TXD	-----------	RXD ----------	>	2 RXD
5	SGND	-----------	SGND ----------		5 SGND

No other pins are used.

Console Port to 25-Pin DTE Port on PC

Switch’s 9-Pin Serial		Null Modem		PC’s 25-Pin DTE Port
Port
2 RXD	<	---------TXD ------------		2	TXD
3 TXD	-----------	RXD ----------	>	3	RXD
5 SGND	-----------	SGND ----------		7	SGND

No other pins are used.

C-2