Siemens SIMATIC CP 340 - Page 176

Connecting Cables
B.2 20 mA TTY interface on the CP 340-20mA-TTY
PtP coupling and configuration of CP 340
176 Manual, 04/2011, A5E00369892-03
20mA-TTY connecting cable (S7 (CP 340) - CP 544, CP 524, CPU 928B, CPU 945, CPU 948)
The figure below illustrates the connecting cable for a point-to-point connection between a
CP 340 and a CP 544, CP 524, CPU 928B, CPU 945, CPU 948.
For the connecting cables you will require the following male connectors:
● At the CP 340 end: 9-pin sub D male connector with screw-locking
● At communication partner: 25-pin sub D male connector with shift latch
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Figure B-10 20mA-TTY connecting cable CP 340 - CP 544, CP 524, CPU 928B, CPU 945, CPU
948