OMEX wiring diagram

[Morinicorse]

A good day together,

who can help me with a wiring diagram for an Omex 710 ECU on a SpeedSix engine?

Furthermore, why are these two devices connected when installing an OMEX ECU, see pic below?
Presumably, they generate the RPM signal for the dashboard, right?




Thanks in advance for any hint.

Best regards
Thorsten