Multi-Tech Systems FR111 Appendix a Cabling Diagrams, Data connector RS232C/V.24 * Cable

Appendix A

Cabling Diagrams

Data Cables

13 12 11 10 9 8 7 6 5 4 3 2 1

25 24 23 22 21 20 19 18 17 16 15 14

Data connector

RS232C/V.24 * Cable

To Data

Device

Connector

PIN NO.	PIN NO.
1	1
2	2
3	3
4	4
5	5
7	7
8	8
15	15
17	17
20	20
25	25

CHASSIS GROUND (AA) TRANSMIT DATA (BA) RECEIVE DATA (BB) REQUEST TO SEND (CA) CLEAR TO SEND (CB) SIGNAL GROUND (AB) CARRIER DETECT (CF) TRANSMIT CLOCK (DB) RECEIVE CLOCK (DD)

DATA TERMINAL READY (CD)

To FR111

Data Connector

V.35 Adapter Cable**

	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
	a		21	TRANSMIT CLOCK B

*The FR111 RS232C interface circuits have been designed to meet the electrical specifications given in EIA (Electronic Industries Association RS232C and CCITT (Consultative Committee International Telegraph and Telephone) V.24 Standards.

**When configured for V.35 interface operation, 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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