Vanguard Managed Solutions 342 DB25 V.35/V.36 Pinouts, CLOCK-B External External Transmit CLOCK-A

Cabling the Vanguard 342

DB25 V.35/V.36 Pinouts

Connector Pinout This table shows the DB25 V.35/V.36 connector pinouts for DCE/DTE mode. To use DTE to DTE or DCE to DCE mode, a crossover adapter cable is required. Refer to Figure 3-5 on page 3-21for crossover cable connections:

Port 3	DCE Signal	Function/Signal	Port 3	DTE Signal	Function/Signal Name
Pin		Name	Pin	using
				Crossover
				Adapter Cable
1	-------------	PROTECTIVE	1	-------------	PROTECTIVE GROUND
		GROUND
2	<------------	TRANSMITTED	2	------------>	TRANSMITTED DATA-A
		DATA-A
3	------------>	RECEIVED DATA-A	3	<------------	RECEIVED DATA-A
4	<------------	REQUEST TO SEND	4	------------>	REQUEST TO SEND
5	------------>	CLEAR TO SEND	5	<------------	CLEAR TO SEND
6	------------>	DATA SET READY	6	<------------	DATA SET READY
7	-------------	SIGNAL GROUND	7	--------------	SIGNAL GROUND
8	------------>	DATA CARRIER	8	<------------	DATA CARRIER DETECT
		DETECT
14	<------------	TRANSMITTED	14	------------>	TRANSMITTED DATA-B
		DATA-B
15	------------>	TRANSMITTED	15	(no signal)	TRANSMITTED
		CLOCK-A			CLOCK-A
16	------------>	RECEIVED DATA-B	16	<------------	RECEIVED DATA-B
17	------------>	RECEIVE CLOCK-A	17	<------------	RECEIVE CLOCK-A
18	------------>	RECEIVE CLOCK-B	18	<------------	RECEIVE CLOCK-B
20	<------------	DATA TERMINAL	20	------------>	DATA TERMINAL
		READY			READY
21	------------>	TRANSMITTED	21	(no signal)	TRANSMITTED
		CLOCK-B			CLOCK-B
22	<------------	EXTERNAL	22	------------>	EXTERNAL TRANSMIT
		TRANSMIT			CLOCK-B
		CLOCK-B
24	<------------	EXTERNAL	24	------------>	EXTERNAL TRANSMIT
		TRANSMIT			CLOCK-A
		CLOCK-A
25	-------------	(no connection)	25	-------------	(no connection)

Note

To use DTE mode, the Interface Options parameter must be set to XOVER. For details on setting the V.35/V.36 Interface Options, see “Setting the Interface Options” section on page 3-10.

Installation and Replacement 3-19