Quatech DSC-200/300 user manual Half- or full-duplex selection

Jumpers J6, J8

		Tx ENABLE	6
	Tx ENABLE		5
Tx ENABLE			4
				6
	Tx ENABLE
	Tx ENABLE		5
	Tx ENABLE		4
			6
	Tx ENABLE
Tx ENABLE			5
Tx ENABLE			4

3	Rx ENABLE
2	RTS	Half-Duplex(DTR) Operation
1	DTR
3	Rx ENABLE
2	RTS	Half-Duplex(RTS) Operation
1	DTR
3	Rx ENABLE
2	RTS	Full-Duplex Operation
1	DTR

Figure 23 --- Half- or full-duplex selection

AUXOUT		RS-422 or		+
		RS-485		-
		Driver
		TXEN
6	3
5	2			AUXIN	RS-422 or
					RS-485
					Receiver
4	1				RXEN
XCLK
RTS
CTS
RCLK
DTR			6	3
DSR
DCD			5	2
RI

4 1

+

-

Figure 24 --- Output control block diagram

Quatech DSC-200/300 User's Manual 33