Fire Alarm Wiring NAC Circuits Diagram

In the fire alarm industry there are three types of fire alarm wiring circuits. Below is a circuits diagram that displays the circuit styles of a Notification Appliance Circuit (NAC). This would be your horn/strobe or speaker circuits off of remote power supplies, addressable fire alarm panels, signal modules, bell cards, etc. Sorry for the poor picture quality. I tried to upload a clean excel file that I give my employees but for some reason Blogger will not allow it.
*** If you click on the image it should enlarge.***

Click here for information on fire alarm wiring IDC Initiating Device Circuits.
Click here for information on fire alarm wiring SLC Signaling Line Circuits.