Lemo connector

[bide]

@agrimgalina

to pins 1 - 2 and 3 that are the earth should I join them together?

They are joined together inside the Reach, so you could join them together if you want to do that.

@agrimgalina

connect my external source to the RS + but it works as a battery charger and not direct power

That is the purpose of the power input line: to charge the internal battery.