Specifications
FS-250 Installation and Operation Manual
8
GENERAL DESIGN FEATURES
Environmental
All hardware is suitable for use in an interior or protected location.
Power Limiting
The AC power and battery wiring are not power limited. All other circuits leaving the control
panel are power limited, provided the proper installation rules are maintained.
Ground Fault Detection
The control panel provides system ground fault detection and a ground fault will trigger the
common fault buzzer and system trouble LED. In addition, each addressable loop circuit
has its own ground detection circuitry and indicator.
NAC Operation
While the notification appliance circuits are essentially hardware circuits, the fact that the
outputs are commanded and controlled by the processor does provide more versatility than
in a total hardware system.
• Output Sounding Patterns - The notification appliance circuits are operable in different
sounding patterns. Any circuit is selectable to any of eight software-generated patterns
or continuous sounding. For convenience, three of the patterns are preprogrammed for
March Time, Temporal, and Siemens SYNC Protocol.
• Control of Audible Silencing - It is possible to select an “auto-silence” mode, adjustable
from 0 to 255 minutes for each NAC. Each notification appliance circuit programmed for
alarm silence sequence will be silenced upon time-out of its auto-silence timer. The
system alarm silenced LED will flash, indicating an auto-silence time-out.
• Audible Silence Inhibit
- In addition to designation of water flow zones, the entire control
panel may be programmed to inhibit audible silence for 0, 1, 3, or 6 minutes from the
last alarm. System reset may also be inhibited.
Transient Protection
Transient protection devices are provided where needed to meet the requirements of
UL864.
Security Features
Processor control and addressing allow inclusion of several functions to assure security of
the system.
Multi-level password protection of programming functions prevents unauthorized
configuration changes.
Device-type supervision: If the type reported by an addressable detector or module, does
not agree with the configuration, the system reports a trouble. Device-address supervision:
The system checks that all configured devices on the addressable device circuit and the
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