Connection Examples - W&T 18801 Manual

W&T

Connection examples

RS232 application with hardware handshake
RS232 interface
DCD
RxD
TxD
DTR
GND
DSR
RTS
CTS
RI
RS422 application with hardware handshake
RS422 interface
Data Out A
Data Out B
Data In A
Data In B
Handshake Out A
Handshake Out B
Handshake In A
Handshake In B
RS485 4-wire bus master application
RS485 interface
Data Out A
Data Out B
Data In A
Data In B
RS485 2-wire application
RS485 interface
Data Out A
Data Out B
Data In A
Data In B
Subject to error and alteration
1
2
3
4
5
6
7
8
9
1
6
2
7
3
8
4
9
1
6
2
7
1
6
2
7
Interface modules
8
DCD
3
RxD
2
TxD
20
DTR
7
GND
6
DSR
4
RTS
5
CTS
22
RI
RxD A (-)
RxD B (+)
TxD A (-)
TxD B (+)
CTS A (-)
CTS B (+)
RTS A (-)
RTS B (+)
RxD A (-)
RxD B (+)
TxD A (-)
TxD B (+)
RxD A (-)
RxD B (+)
TxD A (-)
TxD B (+)
Bus A (-)
Bus B (+)
Bus A (-)
Bus B (+)
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