53
W&T
Serial PCI cards
Subject to error and alteration
Bus A (-)
Bus B (+)
Bus A (-)
Bus B (+)
RS485 2-wire application
Data Out A
Data Out B
Data In A
Data In B
RS485 interface
1
6
2
7
RS485
device
RS485
device
Data Out A
Data Out B
Data In A
Data In B
RS485 interface
1
6
2
7
RxD A (-)
RxD B (+)
TxD A (-)
TxD B (+)
RxD A (-)
RxD B (+)
TxD A (-)
TxD B (+)
RS485
device
RS485 4-wire bus master application
RS485
device
RxD A (-)
RxD B (+)
TxD A (-)
TxD B (+)
CTS A (-)
CTS B (+)
RTS A (-)
RTS B (+)
RS422
device
RS422 application with hardware handshake
Data Out A
Data Out B
Data In A
Data In B
Handshake Out A
Handshake Out B
Handshake In A
Handshake In B
RS422 interface
1
6
2
7
3
8
4
9
Modem
RS232 application with hardware handshake
DCD
RxD
TxD
DTR
GND
DSR
RTS
CTS
RI
RS232 interface
PCI card 13610
1
2
3
4
5
6
7
8
9
DCD
RxD
TxD
DTR
GND
DSR
RTS
CTS
RI
8
3
2
20
7
6
4
5
22
PCI card 13610
PCI card 13610
PCI card 13610
Applications
Summary of Contents for 13011
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