Black Box LR1530A-EU-R3, LR1530A-R3 manual Link Pinouts, Connecting cable must be a shielded cable

Servicing Information

V.35 Link Pinouts

DB25	M.34		Direction
Contact	Contact	Circuit	To	From
No.	No.	Name	DCE	DCE
1	A	Protective Ground	NA
2	P	Transmitted Data (A)	X
3	R	Received Data (A)		X
4	C	Request to Send	X
5	D	Clear to send		X
6	E	Data Set Ready		X
7	B	Signal Ground	NA
8	F	Data Channel Received Line Signal		X
		Detector
9	X	Receiver Signal Element Timing (B)		X
10		----------
11	W	Terminal Signal Element Timing (B)	X
12	AA	Send Signal Element Timing (B)		X
13		----------
14	S	Send Data (B)	X
15	Y	Send Signal Element Timing (A)		X
16	T	Received Data (B)		X
17	V	Received Signal Element Timing (A)		X
18	L	Local Loopback	X
19		----------
20	H	Data Terminal Ready	X
21	N	Remote Loopback
22		----------
23		----------
24	U	Terminal Signal Element Timing (A)	X
25	NN	Test Mode	X

Figure C - 6 V.35 Link Pin Outs

The connecting cable must be a shielded cable.

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