W&T Com-Server++ - Page 40

40
W&T The serial combi-port
330O 330O120O
+5V
SW6
SW7
Data In B
Data In A
Wiring examples
RS422 connection with hardware handshake
Com-Server RS422/485
Data Out A
Data Out B
Data In A
Data In B
Handshake Out A
Handshake Out B
Handshake In A
Handshake In B
RxD A (-)
RxD B (+)
TxD A (-)
TxD B (+)
CTS A (-)
CTS B (+)
RTS A (-)
RTS B (+)
1
6
2
7
3
8
4
9
RS485 connection (4-wire bus master)
Com-Server RS422/485
Data Out A
Data Out B
Data In A
Data In B
Handshake Out A
Handshake Out B
Handshake In A
Handshake In B
1
6
2
7
3
8
4
9
RxD A (-)
RxD B (+)
TxD A (-)
TxD B (+)
RxD A (-)
RxD B (+)
TxD A (-)
TxD B (+)
RS485 connection 2-wire
Com-Server RS422/485
Data Out A
Data Out B
Data In A
Data In B
Handshake Out A
Handshake Out B
Handshake In A
Handshake In B
1
6
2
7
3
8
4
9
Bus A (-)
Bus B (+)
Bus A (-)
Bus B (+)
RS585
device
RS585
device
RS585
device
RS585
device
RS585
device