20-pin connector for DIN-rail 70mm

20-pin male connector for connection between
- A controller board in the lid of a housing or standing REG 4TE
and
- An application board in the bottom of housing

The view shows the pinout on the application board viewed from above. The assignment is designed to get by applications that require only 4-port theory, with a 2 X 5 connectors. The free pins reserved for later extensions, such as ADC / DAC or SPI. You will be fined if specific applications are emerging.