Quatech Asynchronous Communications Adapter DSC-200/300 Bedienungsanleitung PDF herunterladen (Seite 33)

Full-Duplex Operation

1

2

36

5

4

RTS

DTR

Tx ENABLE

Tx ENABLE

Tx ENABLE

Rx ENABLE

Half-Duplex(DTR) Operation

1

2

36

5

4

RTS

DTR

Tx ENABLE

Tx ENABLE

Tx ENABLE Rx ENABLE

Half-Duplex(RTS) Operation

1

2

3

6

5

4

RTS

DTR

Tx ENABLE

Tx ENABLE

Tx ENABLE

Rx ENABLE

Jumpers J6, J8

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

AUXOUT

AUXIN

RS-422 or

RS-485

Receiver

+

-

TXEN

RXEN

1

2

36

5

4

1

2

36

5

4

XCLK

RTS

CTS

RCLK

DTR

DSR

DCD

RI

+

-

RS-422 or

RS-485

Driver

Figure 24 --- Output control block diagram

Quatech DSC

-200/300 User

'

s Manual

33

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 39

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