ADTRAN 1200070L2, 1200070L1 user manual Table D-A, Table D-B

Appendix D

Connector Pinouts

							Table D-A
						IBM/AT Style EIA-232 Interface
		Pin		Name	I/O		Description
		1		CD	N/C		Carrier Detect
		2		RD	O		Receive Data
		3		TD	I		Transmit Data
		4		DTR	N/C		Data Terminal Ready
	MAINTENANCE
		5		GND	N/A		Signal Ground
		6		DSR	N/C		Data Set Ready
		7		RTS	I		Request to Send
		8		CTS	O		Clear to Send
		9		RI	N/C		Ring Indicator
I = Input	O = Output		N/A = Not Applicable				N/C = Not Connected
							Table D-B
							RJ-45 ISDN BRI U

ISDN

BRI U

Pin 4 Ring

Pin 5 Tip

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