Multi-Tech Systems DT102, DT101/xx Composite Link Cabling, Appendix C Cabling Diagrams, 121

Appendix C - Cabling Diagrams

Composite Link Cabling

RS232C/V.24 Configured Composite Link*

PIN NO. PIN NO.

To

External

Synchronous

Modem/DSU/

Terminal Adapter

Connector

1

2

3

4

5

7

8

15

17

20

25

1CHASSIS GROUND (AA)

2TRANSMIT DATA (BA)

3RECEIVE DATA (BB)

4REQUEST TO SEND (CA)

5	CLEAR TO SEND (CB)	To DataTalker
7	SIGNAL GROUND (AB)	RS232C/V.35
8	CARRIER DETECT (CF)	Connector

15TRANSMIT CLOCK (DB)

17RECEIVE CLOCK (DD)

20DATA TERMINAL READY (CD)

V.35 Adapter Cable Configured on a

RS232C/V.35 Composite Link**

	V.35 34-PIN		25-PIN
CONNECTOR (MALE)		CONNECTOR (FEMALE)
	A		1	PROTECTIVE GROUND
	B		7	SIGNAL GROUND
	C		4	REQUEST TO SEND
	D		5	CLEAR TO SEND
	E		6	DATA SET READY
	F		8	DATA CARRIER DETECT
	H		20	DATA TERMINAL READY
	P		2	TRANSMIT DATA A
	R		3	RECEIVE DATA A
	S		12	TRANSMIT DATA B
	T		22	RECEIVE DATA B
	U		23	EXTERNAL TX CLOCK A
	V		17	RECEIVE CLOCK A
	W		25	EXTERNAL TX CLOCK B
	X		18	RECEIVE CLOCK B
	Y		15	TRANSMIT CLOCK A
	AA		21	TRANSMIT CLOCK B

*The DataTalker RS232C interface circuits have been designed to meet the electrical specifications given in EIA (Electronic Industries Association) RS232C and ITU-T (International Telecommunications Union) V.24 Standards.

**When configured for V.35 interface operation on the composite link, the V.35 adapter cable should be used. This cable uses a 25-pin female connector at one end and a 34-pin Winchester male connector at the other end.

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