Siemens SIPROCESS GA700 Compact Operating Instructions page 150

Connecting
4.2 Electrical connections
①
②
③
④
⑤
Figure 4-2
44
Connector number
Power supply unit: Power connector with securing bracket
Processing unit, Ethernet with interlock and 37-pin sub-D (female), digital inputs and outputs
Optional module 1.1 25-pin sub-D (female), digital inputs and outputs
or
Blank plate
Optional module 2.1, 15-pin sub-D (male), digital outputs and analog outputs
or
Optional module 2.2, 15-pin sub-D (female), digital inputs, analog inputs and analog outputs
Example of rear panel with OXYMAT 7, connecting the signal lines
Devices in explosion-proof design
Compact Operating Instructions, 05/2015, A5E35134047-02