Alwayslearningelec
Senior Member
- Location
- NJ
- Occupation
- Estimator
Does every fire alam device get a loop( out and back) with andressable class A system or is it certain devices such as initiating, signaling etc.? Thanks
Does every fire alam device get a loop( out and back) with andressable class A system or is it certain devices such as initiating, signaling etc.? Thanks
Too many variables to answer yes or no. Someone competent must design the system. You will not see (at least not if it was compentnently designed) a 'class A system'. The spec may call for one type of circuit class A and others are B.
Too many variables to answer yes or no. Someone competent must design the system. You will not see (at least not if it was compentnently designed) a 'class A system'. The spec may call for one type of circuit class A and others are B.
What do you mean ' you will not see a class A system"
But can it be ONLY class A and not mix? Thanks