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Jumpers J10, J12, J14, J16
Tx ENABLE
Tx ENABLE
Tx ENABLE
Tx ENABLE
Tx ENABLE
Tx ENABLE
Tx ENABLE
Tx ENABLE
Tx ENABLE
Quatech QSC-200/300 Users Manual
3
6
Rx ENABLE
2
RTS
5
4
1
DTR
3
6
Rx ENABLE
2
RTS
5
4
1
DTR
3
6
Rx ENABLE
2
RTS
5
4
1
DTR
Figure 23 --- Half- or full-duplex selection
AUXOUT
6
3
2
5
4
1
XCLK
RTS
CTS
RCLK
DTR
DSR
DCD
RI
Figure 24 --- Output control block diagram
Half-Duplex(DTR) Operation
Half-Duplex(RTS) Operation
Full-Duplex Operation
RS-422 or
+
RS-485
-
Driver
TXEN
AUXIN
6
3
5
2
4
1
RS-422 or
+
RS-485
-
Receiver
RXEN
33
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