Rockwell Automation 2706-M1 MESSAGEVIEW 421 HARDWARE MANUAL - Manual (Page 100)

6–7 Remote I/O and RS-232 Connections
Publication 2706–816
To another MessageView terminal
DB-9 Connector (Female)
(DCE)
DB-9 Connector (Female)
(DCE)
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
TXD
RXD
Common
CTS
RTS
DTR
DSR
Common
Note: If you create a cable, connect the cable shield to metal housing or pin 9 of MessageView terminal connector.
RS-232 Communication Cable
MessageView Terminal MessageView Terminal
NC NC
NC
DCD
Shield Shield
TXD
RXD
DTR
CTS
RTS
DSR
To a DTE Device
DB-9 Connector (Female)
(DCE)
DB-9 Connector
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
TXD
RXD
Common
CTS
RTS RTS
CTS
DCD DCD
DTR DTR
DSR DSR
RXD
TXD
Common
Note: If you create a cable, connect the cable shield to metal housing or pin 9 of MessageView terminal connector.
RS-232 Communication Cable
MessageView Terminal DTE Device
RI
NC
Shield