PA line · life safety
Voice alarm system & fire interface
Voice-alarm control, evacuation messages, fire-alarm interfaces and monitored loudspeaker circuits — specified to the standard the project actually has to meet.
Representative image. Final finish and configuration are confirmed with the quotation.
Key values: EN 54 scope · 32 · Hard-wired · Battery
Overview
The part of the PA system that has to work when everything else fails.
Voice alarm is not a louder version of background music. It is a life-safety function with its own standards, its own documentation and its own acceptance process. The loudspeakers may be shared with the PA system, but the control path, the power supply and the fault monitoring have to satisfy the fire strategy.
The common standards in export projects are EN 54-16 for the voice-alarm control equipment and EN 54-24 for the loudspeakers, with local equivalents in the Gulf, Southeast Asia and Africa. We do not claim that a product is certified because it is “EN 54 ready”. The certificate, its scope and the accepting authority are checked model by model before the offer is fixed.
Where a full certified voice-alarm system is not required, the same engineering can still be applied: a hard-wired fire trigger, a dedicated evacuation message, priority override, monitored circuits and a documented test procedure. That is often the right scope for a hotel, school or factory that has a fire alarm but no separate voice-alarm mandate.
Manufacturing & system package
Manufactured in our own factory. Available as a standalone family, or combined with PA, conference, AV and ballroom families into one complete system package and one combined proposal. ODM and OEM programmes available.
Standard first, product second
The accepting authority and the applicable standard are confirmed before a model is proposed. The certificate scope is part of the submittal.
Hard-wired override
The fire trigger does not depend on the network or the paging console. It takes priority at the amplifier or zone controller.
Monitored circuits
Pilot tone, impedance monitoring and fault contacts are specified where the fire strategy requires line supervision.
Documented test sequence
Zone-by-zone test sheets, battery autonomy checks and cause-and-effect matrices are issued with the system.
Reference specification
What are the reference specifications and selection rules?
The table is a design reference, not a model datasheet. The quoted model carries the final ratings.
| Item | Reference value or guidance |
|---|---|
| Model-specific | EN 54 scope |
| Alarm inputs (ref.) | 32 |
| Override path | Hard-wired |
| Autonomy by fire strategy | Battery |
| Reference standards | EN 54-16 control, EN 54-24 loudspeakers |
| Fire interface | 32 alarm inputs, 2 alarm outputs (reference) |
| Message storage | Pre-recorded evacuation messages, multiple languages |
| Priority | Fire override above paging and music |
| Monitoring | Pilot tone / impedance / amplifier fault |
| Power | Battery backup sized to the fire strategy |
| Full EN 54-16 system | Use certified control equipment and certified loudspeakers. Confirm the certificate numbers, the model list and the local acceptance route. The design and commissioning documents follow the standard. |
| Local equivalent standard | Some markets accept a national fire code rather than EN 54. The control logic may be similar, but the documentation and the witness tests are different. Confirm before quoting. |
| Shared PA / voice alarm | The loudspeaker circuits can be shared if the standard allows it. The fire override, monitoring and power supply still have to be dedicated or certified as part of the system. |
| No mandated voice alarm | Use a hard-wired fire interface, a dedicated message and a documented test procedure. This is a engineering solution, not a claim of certification. |
| Existing building retrofit | Check the existing loudspeaker circuits, cable integrity and fire-alarm interface before reusing them. A circuit that passes a continuity test may still fail an impedance or intelligibility test. |
Model range
Representative models with photos
Only models with an available product photo are listed. The full range, model-level datasheets and certificate scope are supplied with the quotation. Brand names are not used on this site.
Request the full model list| Photo | Model | Type | Note |
|---|---|---|---|
 | BL-E3001-H | IP network broadcast control host | Host platform for paging, alarm triggers and zone override. |
 | IP56 | Network sound-light alarm | Alarm sound and light unit for local warning; fire interface confirmed per project. |
Representative models only. Key electrical, acoustic and certification values are confirmed in the model datasheet and the quotation.
Typical applications
Where this family is used
Schools & campuses
One bell, one paging system and one evacuation path across classrooms, corridors, playgrounds and canteens.
View application design
Hospitals & healthcare
Patient announcements, staff paging and evacuation in one system, with the privacy and zoning a hospital actually needs.
View application design
Airports, stations & transit
Long concourses, hard surfaces and constant background noise — announcements that stay intelligible at the farthest gate.
View application design
Offices & commercial buildings
Background music, floor paging and evacuation in a building that has to feel calm every day and work under pressure once.
View application design
Hotel public areas
Lobby, restaurants, corridors, spa and pool — one background-music system with the ballroom and the fire alarm on speaking terms.
View application design
Existing building retrofit
New paging and evacuation in a building that cannot be opened up, closed down or filled with new cable.
View application designRelated
Build the rest of the chain
A working system is more than one family. These are the adjacent blocks that are usually specified together.
PA line · coreBroadcast control & amplifiers
Broadcast hosts, zone controllers, mixer amplifiers and IP amplifiers for background music, paging and emergency override — specified as one signal chain.
PA line · outputCeiling, horn, column & wall loudspeakers
Ceiling, horn, column, wall and landscape loudspeakers for corridors, halls, factories, stations and outdoor areas — selected by coverage and environment, not by wattage alone.
PA line · controlZone paging & paging consoles
Desktop paging consoles, remote paging stations, zone selectors and timed message players for schools, hospitals, stations and commercial buildings.
PA line · networkedIP network audio
IP audio terminals, network amplifiers, paging consoles and cloud or local management for campuses, towers and distributed sites.
Questions
Frequently asked questions
The questions that usually decide the scope: loudspeaker count, amplifier size, fire interface, certification and who installs the system. If your question is not here, send it with the building data.
Ask an application engineerIs your equipment EN 54 certified?
Certification is model-specific and must be checked against the current certificate list. We quote EN 54-16 control equipment and EN 54-24 loudspeakers where the project requires them, and provide the certificate scope for the models offered. We do not describe a product as certified unless the certificate covers that model and the intended use.
Can the voice alarm share loudspeakers with the BGM system?
In many projects, yes. The shared loudspeaker circuit must still meet the voice-alarm requirements for level, intelligibility and monitoring, and the fire override must be independent of the music source. Some authorities require dedicated circuits or dedicated loudspeakers; that is a local code question, not a product question.
What is a cause-and-effect matrix?
It is the table that says which fire alarm event triggers which evacuation zone, message and output. It is agreed with the fire-alarm supplier and the building’s fire engineer. The voice-alarm system is configured to that matrix, and the commissioning test proves it.
How long should the battery backup last?
The autonomy is set by the fire strategy and the local code, not by the equipment supplier. Common targets are 30, 60 or 120 minutes of evacuation operation, sometimes with a longer standby requirement. The battery size is calculated from the quiescent and alarm loads and confirmed with the accepting authority.
Do you provide the acceptance test?
We provide the test procedure, the configuration record and the commissioning checklist. The statutory acceptance test is carried out by the local licensed contractor and witnessed by the authority having jurisdiction. If the project requires our engineer on site, that is quoted as a separate service.
Next step
Send the room, not the model
Tell us the building type, the zones, the ceiling height and the fire interface. We will check whether this family fits before we quote it, and show how it combines with the rest of the system in one proposal.
- Coverage and tap-load calculation
- Interface list for fire, paging and network
- Certificate scope confirmed per model
- ODM / OEM or private-label requirement
Project inquiry
Ask about Voice alarm
Send the room or building data once. We return one combined proposal covering PA, conference, ballroom and AV, with the equipment schedule, interface list and the questions that still need an answer. ODM and OEM inquiries are welcome. Drawings are welcome but not required.