SFC-500 Series Installation and Operation Manual
3
Conventions
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. Groups are used
extensively in the SFC-500 Series to facilitate annunciation of multiple input and output points on the 32 (up to 64)
LED display and to facilitate bypassing of inputs and outputs.
Display Points
The SFC-500 Series provides an LCD display to annunciate the status of the system and connected devices. The
FX-351 also provides up to 64 LED display points on the panel front in addition to the LCD display. Display points
may be assigned to LEDs during configuration to groups of inputs or outputs. There are two LEDs for every display
point: one single color (amber) and one dual color (red/amber).
Wiring Styles
The analog loop can be connected in Class B (Style Y) or Class A (Style D) configurations. Changing the indicating
circuits to Class A requires an SOCA-204 adder board which will convert four indicating zones from Class B (Style
Y) circuits to Class A (Style Z). This is done without reducing the number of circuits.
Note: The Model SFC-500-60DR panels DO NOT recognize any devices with addresses higher than 60.
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