Fire Alarm Class A Wiring Diagram. The Potter part number for the listed end of line assembly is 3005013 EOL Resistor Assembly. If the NFPA addressed this kind of wiring path though the Class of wiring would be Class-Dont.
A fire can still be detected because using this redundant path most if not all devices on the loop remain connected to the panel. It shows the components of the circuit as streamlined shapes and also the power as well as signal links in between the devices. A wiring diagram is a simplified standard photographic depiction of an electric circuit.
From compatible fire alarm control panel 2.
Collection of fire alarm pull station wiring diagram. Assortment of class b fire alarm wiring diagram. How the wires connect from the fire alarm panel to each device on the Class A Wiring loop and back to the fire alarm panel. A wiring diagram is a simplified standard photographic depiction of an electric circuit.