Fire Alarm Code
Where abouts could someone find a code book for fire alarm, I have been told two different ways to wire something and was wondering which way is correct.
Data loop goes around the building and you come to a stairwell with fire rated walls. Do you need to continue the loop through the stairwell(pipe to octagon and then pipe out of octagon) or can you stop a box and take one pipe into the stairwell(with the in and out). I know where the isolators go just wondering the proper way to pipe it.