AT&T 7400 series, 7500 series, 7100 series manual Bba, Bbb, Dda, Ddb, Dba, Dbb, Baa, Bab, Daa, Dab

E-6LEAD DEFINITIONS

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_			Table E-5.CCITT V.35 LEADS/DEFINITIONS
⎜	PIN	⎜	CCITT	⎜	EIA	⎜	LEAD DESCRIPTION	⎜	MPDM
⎜	NO.	⎜	INTERCHANGE	⎜	EQUIVALENT	⎜	(FUNCTION)	⎜	INPUT/
⎜		⎜		⎜		⎜		⎜
⎜		⎜	CIRCUIT	⎜	CIRCUIT	⎜		⎜ OUTPUT
⎜	A	⎜	—	⎜	—	⎜ Unassigned		⎜	—
⎜	B	⎜	102	⎜	AB	⎜	Signal Ground	⎜	—
⎜	C	⎜	105	⎜	CA	⎜	Request to Send	⎜	I
⎜		⎜		⎜		⎜		⎜
⎜	D	⎜	106	⎜	CB	⎜	Clear to Send	⎜	O
⎜	E	⎜	107	⎜	CC	⎜ Data Set Ready		⎜	O
⎜	F	⎜	CF	⎜	109	⎜ Received Line Sig Detector		⎜	O
⎜	H	⎜	CD	⎜	108/2	⎜	Data Terminal Ready	⎜	I
⎜	J	⎜	CE	⎜	125	⎜	Calling Indicator	⎜	O
⎜		⎜		⎜		⎜		⎜
⎜	K	⎜	—	⎜	—	⎜	Unassigned	⎜	—
⎜	L	⎜	LL	⎜	141	⎜ Local Loopback		⎜	I
⎜	M	⎜	—	⎜	—	⎜ Unassigned		⎜	—
⎜	N	⎜	RL	⎜	140	⎜	Loopback/Maintenance Test	⎜	I
⎜		⎜		⎜		⎜	(Remote Loopback)	⎜
⎜		⎜		⎜		⎜		⎜
⎜	R	⎜	BB(A)	⎜	104	⎜	Receiver Data	⎜	O
⎜	T	⎜	BB(B)	⎜	104	⎜ Receiver Data		⎜	O
⎜	V	⎜	DD(A)	⎜	115	⎜ Receiver Sig Element Tmg		⎜	O
⎜	X	⎜	DD(B)	⎜	115	⎜	Receiver Sig Element Tmg	⎜	O
⎜	Y	⎜	DB(A)	⎜	114	⎜	Transmitter Sig Element Tmg	⎜	O
⎜		⎜		⎜		⎜		⎜
⎜	AA	⎜	DB(B)	⎜	114	⎜	Transmitter Sig Element Tmg	⎜	O
⎜	P	⎜	BA(A)	⎜	103	⎜ Transmitted Data		⎜	I
⎜	S	⎜	BA(B)	⎜	103	⎜ Transmitted Data		⎜	I
⎜	U	⎜	DA(A)	⎜	113	⎜	Transmitter Sig Element Tmg	⎜	I
⎜	Z	⎜	—	⎜	—	⎜	Unassigned	⎜	—
⎜		⎜		⎜		⎜		⎜
⎜	W	⎜	DA(B)	⎜	113	⎜	Transmitter Sig Element Tmg	⎜	I
⎜ BB		⎜	—	⎜	—	⎜ Unassigned		⎜	—
⎜ CC		⎜	—	⎜	—	⎜ Unassigned		⎜	—
⎜	DD	⎜	—	⎜	—	⎜	Unassigned	⎜	—
⎜	EE	⎜	—	⎜	—	⎜	Unassigned	⎜	—
⎜		⎜		⎜		⎜		⎜
⎜	FF	⎜	—	⎜	—	⎜	Unassigned	⎜	—
⎜ HH		⎜	—	⎜	—	⎜ Unassigned		⎜	—
⎜	JJ	⎜	—	⎜	—	⎜ Unassigned		⎜	—
⎜	KK	⎜	—	⎜	—	⎜	Unassigned	⎜	—
⎜	LL	⎜	—	⎜	—	⎜	Unassigned	⎜	—
⎜		⎜		⎜		⎜		⎜
⎜ MM		⎜	—	⎜	—	⎜	Unassigned	⎜	—
⎜ NN		⎜	TM	⎜	142	⎜ Test Indicator		⎜	O

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