Paradyne 7924 Connection Cable Pin Assignments, Direction Code Pin Name, Function Description

Cable Pin Assignments

V.35 Connection Cable Pin Assignments

The connector that plugs into the rear panel of V.35-compatible units has the following pin assignments.

CCITT			Direction
Code	Pin	Name	DCE DTE	Function	Description
101	A	PG		Protective Ground	Machine ground
102	B	SG		Signal Ground	Ground reference for all circuits
105	C	RTS	←	Request to Send	DTE has message to send
106	D	CTS	→	Clear to Send	DCE is ready to accept and transmit DTE data
107	E	DSR	→	Data Set Ready	DCE is ready to operate
109	F	RLSD	→	Data Channel	DCE is receiving a carrier signal
				Received Line Signal
				Detector
108	H	DTR	←	Data Receiver Ready	DTE is ready to operate
141	L	LL	←	Local Loopback	Local loopback
140	N	RDL	←	Loopback/Maintenan	Remote loopback
				ce
103	P	TXD	←	Transmit Data (A)	Data generated by DTE
104	R/D	RXD	→	Received Data (A)	Data received by DTE
103	S	TXD	←	Transmitted Data (B)	Data generated by DTE
104	R	RXD	→	Received Data (B)	Data received by DTE
113	U	EXT	←	Transmitter Signal	To help detect center of signaling element on BA
		CLK		Element Time (A)
115	V	RSET	→	Receiver Signal	To help detect center of signaling element on BB
				Element Timing (A)
113	W	EXT	←	Transmitter Signal	To help detect center of signaling element on BA
		CLK		Element Timing (B)
115	X	RSET	→	Receiver Signal	To help detect center of signaling element on BB
				Element Timing (B)

114

Y TSET

→

Transmit Signal Element Timing (A)

To help detect center of signaling element on BA

114

a

TSET

→

Transmit Signal Element Timing (B)

To help detect center of signaling element on BB

142

n

TST

→

Test Indicator

Reserved for test

B-4 October 1997 7924-A2-GB20-30