Paradyne 336x E1 manual Table D-6 RS449 Cable Interface Signal Circuit

ACCULINK 336x E1 NTU

Table D-6

RS449 Cable Interface

	Signal	Circuit	CCITT	Direction	Pin
		Mnemonic	Number
Shield		Ð	Ð	Ð	1
Signal Ground		SG	102A	Ð	19
Receive Ground		RC	102B	Ð	20
Send Common		SC	Ð	Ð	37
Send Data		SD	103	To NTU	4 (A)
					22 (B)
Receive Data		RD	104	From NTU	6 (A)
					24 (B)
Request-to-Send		RS	105	To NTU	7 (A)
					25 (B)
Clear-to-Send		CS	106	From NTU	9 (A)
					27 (B)
Receiver Ready		RR	109	From NTU	13 (A)
					31 (B)
Data Mode		DM	107	From NTU	11 (A)
					29 (B)
Terminal Ready		TR	108/1, /2	To NTU	12 (A)
					30 (B)
Terminal Timing		TT	113	To NTU	17 (A)
					35 (B)
Send Timing		ST	114	From NTU	5 (A)
					23 (B)
Receive Timing		RT	115	From NTU	8 (A)
					26 (B)
Local Loopback		LL	141	To NTU	10
Remote Loopback		RL	140	To NTU	14
Test Mode		TM	142	From NTU	18

D-8 December 1996 3360-A2-GB20-20