M800 and ADL

Hi,
I want to use a M800 and a ADL on my bike.
The question is:
-It is necessary to use 2 CAN connectors or is 1 enought to communicate with M800 and ADL?
Thanks
I want to use a M800 and a ADL on my bike.
The question is:
-It is necessary to use 2 CAN connectors or is 1 enought to communicate with M800 and ADL?
Thanks