Siemens S5-135U/155U - Page 245

5-105
System Manual
C79000-G8576-C199-06
Wiring of a connecting cable for RTS/CTS flow control
CPU
RxD
7
3
2
7
TxD
Receiver Transmitter
TxD
2
RxD
ReceiverTransmitter
Shield
1
RTS
CTS
Housing, GND
1
3
RTS
CTS
Housing, GND
4
5
4
5
CPU
Figure 5-19 Example of a Connecting Cable: CPU - CPU for RTS/CTS Flow Control
CPUs, Memor
y
Cards, Memor
y
Submodules, Interface Submodules