Here is the interfaces regarding the power needs/uses and the front sens connector.
It describes the connector used in the TOP PCB.

There are mainly three types of connectors:
- JST/Molex 1.25mm like 6p
- JST/Molex 1.25 like 3p
- PFC connectors for the RPI CAM sockets and for the front sens panel

The power of the RPi CAMs are not represented, they are directly distributed by the compute module.

The SAME70-M1/M2 are powered with the same converter.
Each signal connector (UART, DAC,..etc) has GND/3V3/Signals, the 3V3 comes from a dedicated converter.
The communication modules are also powered by a dedicated converter.