Siemens S5-155U System Manual page 227

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Interface Submodules
CPU
Receiver
Transmitter
RTS
CTS
Housing, GND
Figure 5-15
Example of a Connecting Cable: CPU - CPU for RTS/CTS Flow Control
5 - 78
Wiring of a connecting cable for RTS/CTS flow control
3
RxD
TxD
2
4
5
7
Shield
1
CPU
Transmitter
TxD
2
Receiver
RxD
3
4
RTS
5
CTS
7
1
Housing, GND
C79000-B8576-C199-03
System Manual

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