How it operates
Initiating devices are wired into zones. When a device operates, the control panel identifies the affected zone rather than reporting the identity of that individual detector.

Conventional FDAS groups initiating devices into zones so the panel identifies the affected area. We assess the layout, define the zoning, then handle installation, testing and follow-up.
Conventional FDAS can be a practical choice for a clear, manageable layout. The zoning and device coverage still need to match the property and approved design.
Initiating devices are wired into zones. When a device operates, the control panel identifies the affected zone rather than reporting the identity of that individual detector.
Often considered for smaller or less complex commercial properties where clear zone identification provides the required level of information and the approved design supports it.
Zone boundaries, detector and manual-station coverage, circuit loading and wiring, alarm appliances, power supplies, interfaces, expansion needs and available plans.
We review the property, required alarm sequence and existing interfaces before defining the FDAS scope and project sequence.
We review the property, current conditions, available plans and project requirements.
We define the panel, device layout, alarm sequence, interfaces and installation scope.
We discuss the proposed scope, inclusions, commercial terms and questions before approval.
Equipment, cabling, devices and site work follow the agreed project scope.
The installed system is tested and commissioned against the approved scope and sequence.
We remain available for maintenance, project records and BFP-related follow-up within our scope.
We maintain existing conventional FDAS installations according to the installed panel, zone arrangement, device condition and agreed testing scope.
Review the panel, zone labels, power supplies, batteries and visible wiring conditions.
Test the agreed detectors, manual stations, notification appliances and zone responses.
Record open circuits, ground faults, disabled zones, device concerns and corrective work.
Provide service records and BFP-related follow-up connected to our scope.
Straight answers about zoning, suitable sites, exact-device identification, expansion, maintenance and project information.
It is a fire detection and alarm system that groups initiating devices into zones. When an alarm or fault occurs, the panel indicates the affected zone so responders can investigate that area.
Normally, the panel identifies the affected zone rather than the exact initiating device. The zone layout and labels must therefore make the protected area clear and practical to investigate.
It may suit smaller or less complex commercial buildings with straightforward zoning. Final suitability depends on the layout, occupancy, hazard, device count, interfaces and approved requirements.
Expansion depends on the panel capacity, available zones, power, wiring and the proposed changes. We review the existing system before confirming whether an extension or a different system approach is practical.
Yes. We can agree on a scope covering panel condition, zone operation, initiating devices, alarm appliances, batteries, faults, records and corrective work that may be needed.
Send the contact person, company, site location, new or existing system status, and any floor plans, zone schedule, specifications, bill of quantities, panel information or BFP comments available.
Completed work
Selected DGRB projects involving this equipment or system category.
Conventional FDAS scope with a 10-zone panel, 27 smoke detectors, manual stations, strobe horns, conduit, wiring, testing, drawings and sprinkler monitoring.
Scope: Conventional fire detection and alarm system
View the projectSend the site location, whether this is a new installation or an existing system, and any available plans or specifications. We’ll review the details and contact you about the site assessment and next steps.
Reviewed by DGRB Fire Safety Technical Team · Updated August 9, 2026 · References: BFP Revised IRR of RA 9514 and NFPA 72 — Fire Alarm and Signaling Code.