Db-9 connector (female) (dce) db-9 connector, Db-25 connector, Db-9 connector (female) (dce) – Rockwell Automation 2706-M1 MESSAGEVIEW 421 HARDWARE MANUAL User Manual
Page 101
6–8
Remote I/O and RS-232 Connections
Publication 2706–816
To a DCE Device DB-9 Connector
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
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
DCE Device
NC
NC
NC
DCD
RI
Shield
TXD
RXD
DTR
CTS
RTS
DSR
To a DTE Device DB-25 connector
DB-25 Connector
8
3
2
20
7
6
4
5
22
RTS
CTS
DCD
DTR
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
DTE Device
RI
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
25
24
23
22
21
20
19
18
17
16
15
14
DB-9 Connector (Female)
(DCE)
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
TXD
RXD
Common
CTS
RTS
DCD
DTR
DSR
MessageView Terminal
Shield