Rockwell Automation 1769-L23E-QB1B_L23E-QBFC1B_L23-QBFC1B CompactLogix Packaged Controllers Quick Start and User Manual User Manual
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Publication IASIMP-QS010B-EN-P - October 2009
Chapter 2 Network Communication
After you have determined if you are using an isolator, use this table to
determine what cable you need to use.
Serial Port Cable Options
If you are using
an isolator
Then use this cable
No
The 1756-CP3 cable attaches the controller directly to the controller.
If you make your own cable, it must be shielded. The shields must be tied to the metal shell (that surrounds
the pins) on both ends of the cable.
You can also use a 1747-CP3 cable from the SLC product family. This cable has a taller right-angle connector
housing than that of the 1756-CP3 cable.
Yes
The 1761-CBL-AP00 cable (right-angle connector to controller) or the 1761-CBL-PM02 cable (straight
connector to the controller) attaches the controller to port 2 on the 1761-NET-AIC isolator. The mini-DIN
connector is not commercially available, so you cannot make this cable.
2 RDX
3 TXD
4 DTR
COMMON
6 DSR
7 RTS
8 CTS
9
1 CD
2 RDX
3 TXD
4 DTR
COMMON
6 DSR
7 RTS
8 CTS
9
1 CD
DB-9 Right-angle or Straight
Cable End
8-pin, Mini-DIN Cable End
Pin
DB-9 End
Mini-DIN End
1
DCD
DCD
2
RxD
RxD
3
TxD
TxD
4
DTR
DTR
5
Ground
Ground
6
DSR
DSR
7
RTS
RTS
8
CTS
CTS
9
N/A
N/A
1 2
3
4
5
6 7 8
6
7
8
9
1
2
3
4
5