Gray wire on evin/John control ?

[Johnbrew]

3 extra wires out of controler, white is ground red is acc power from alarm what should Gray be used for? or is it used?

 

[wilde1j]

Re: Gray wire on evin/John control ?

Probably tach pulse feed.

 

[Numlaar]

Re: Gray wire on evin/John control ?

Gray is typically the Tachometer lead.