Multi-Tech Systems MMV1600 owner manual Composite Link Cabling

Composite Link Cabling

RS232C/V.24 *Configured Composite Link

To

External

Synchronous

Modem/DSU

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)	To
REQUEST TO SEND (CA)	MultiMux
CLEAR TO SEND (CB)	External
SIGNAL GROUND (AB)	Modem/DSU
	Connector
CARRIER DETECT (CF)
TRANSMIT CLOCK (DB)
RECEIVE CLOCK (DD)
DATA 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
	a		21	TRANSMIT CLOCK B

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

**When configured for V.35 interface operation on composite link A or B, 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.