10
2.2
General Notes
Circuits
Refers to a physical electrical interface for the
analog
loop, indicating signals or relays, and
common alarm, supervisory, and trouble relay outputs.
Zone/Group
Is a logical concept for a Fire Alarm Protected Area, and will consist of at least one Circuit. The
MR-400 uses Groups extensively to facilitate bypass of multiple input and output points.
Display Points
The MR-400 LCD display annunciates the status of the system and connected devices.
Wiring Types
The addressable (SLC) loop can be configured system-wide as Class B or Class A. With the
addition of isolators, a Class A loop will become a Class X.