Accton Technology AC-IG2004W manual Serial Port Pin Assignments, DB-9 Port Pin Assignments

Serial Port Pin Assignments

Serial Port Pin Assignments

The DB-9 serial port on the rear panel is used to connect the CheetahAccess Wireless Gateway to an ISDN TA or PSTN modem. The pin assignments used to connect to this port are provided in the following tables.

Figure B-2. DB-9 Serial Port Pin Numbers

DB-9 Port Pin Assignments

EIA	CCITT	Description	Gateway’s	PC DB9	Modem	Signal
Circuit	Signal		DB9 DTE	DTE	DB25 DCE	Direction
			Pin #	Pin #	Pin #	DTE-DCE
CF	109	DCD (Data Carrier Detected)	1	1	8	<------
BB	104	RxD (Received Data)	2	2	3	<------
BA	103	TxD (Transmitted Data)	3	3	2	------>
CD	108.2	DTR (Data Terminal Ready)	4	4	20	------>
AB	102	SG (Signal Ground)	5	5	7	-------
CC	107	DSR (Data Set Ready)	6	6	6	<------
CA	105	RTS (Request-to-Send)	7	7	4	------>
CB	106	CTS (Clear-to-Send)	8	8	5	<------
CE	125	RI (Ring Indicator)	9	9	22	<------

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