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ERRCS & DAS SYSTEMS

RELIABLE COMMUNICATION WHEN SECONDS COUNT.

When the signal drops, so does everything responders depend on.

Give first responders a signal they can trust.

Total penetration. Zero dead zones. Constant contact.

A fire doesn't wait for a strong signal. Neither should the responders trying to fight it. Emergency Responder Radio Communication Systems (ERRCS) and Distributed Antenna Systems (DAS) exist for one reason: to make sure fire, police, and EMS teams can talk to each other and to command, everywhere inside your building — stairwells, basements, parking structures, the places where radio signal goes to die. Guarantee the connection. Guide the response. Protect the responders protecting you. Increasingly, this isn't optional. California, Texas, and Florida — along with a growing list of jurisdictions nationwide — now mandate ERRCS/DAS coverage in large, high-rise, and below-grade buildings. Fortis designs, installs, and maintains systems that meet that mandate and the AHJ scrutiny behind it. We make sure that when your building's signal is tested, it holds.

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What is an ERRCS/DAS system?

An Emergency Responder Radio Communication System (ERRCS), often deployed via a Distributed Antenna System (DAS), is in-building infrastructure that captures public safety radio frequencies from outside a building and rebroadcasts them throughout the interior — including stairwells, basements, elevator shafts, and parking structures where signal from outside towers can't reach.

A Bi-Directional Amplifier (BDA) receives and boosts the signal; a network of interior antennas distributes it. For facility and property managers, ERRCS/DAS is increasingly a code requirement, not an amenity — and a system that fails its annual test can jeopardize a building's certificate of occupancy.

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Who needs ERCCS & DAS SYSTEMS

SIZE CREATES DEAD ZONES. DEAD ZONES CREATE RISK.

ERRCS/DAS requirements are triggered less by industry and more by a building's size, height, and structural composition — though certain occupancies face the strictest scrutiny once those thresholds are crossed.

Hospitality

Hotels and resorts with below-grade parking, dense guest-room construction, and multi-building footprints are common ERRCS/DAS triggers — and a system failure during an active event puts both responders and guests at risk simultaneously.

Healthcare

Hospitals and long-term care facilities combine large footprints, below-grade equipment areas, and zero tolerance for communication failure during an emergency response. A dead zone in a hospital stairwell isn't an inconvenience — it's a responder operating blind in a building with patients who can't self-evacuate.

Education

University buildings, dormitories, and large lecture halls with below-grade mechanical infrastructure increasingly fall under ERRCS/DAS mandates as campuses build taller and denser.

Multi-Family Residential

High-rise apartment and condo buildings face the same code triggers as commercial towers, with the added complexity of below-grade parking garages and mechanical rooms that are notoriously difficult for standard radio signal to penetrate.

Large & High-Rise Buildings

Most jurisdictions require ERRCS/DAS in buildings of 50,000 square feet or more, and in any structure of three stories or higher. Dense construction materials — steel, concrete, low-E glass — block the public safety frequencies responders depend on, and building height multiplies the number of dead zones a standard signal has to fight through.

Office Buildings

Class A office towers are frequently subject to the strictest AHJ scrutiny — both for initial certificate of occupancy and for the annual recertification testing that keeps it valid.

ERRCS & DAS CODE & COMPLIANCE

THE STANDARDS ARE STRICT.
SO IS OUR RECORD OF MEETING THEM.

ERRCS/DAS compliance sits at the intersection of fire code, radio licensing, and local AHJ interpretation — three regulatory bodies that don't always agree on the details.

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NFPA 1225

is the current governing standard for Emergency Communication Systems, consolidating and superseding the patchwork of ERCES provisions previously scattered across earlier code editions. It establishes coverage, signal strength, and testing requirements for in-building emergency responder communication.

Typical technical benchmarks include 99% signal coverage in critical areas (fire command centers, stairwells, elevator lobbies, pump rooms), 90% coverage in general building areas, 24-hour minimum battery backup, and NEMA 4 enclosures rated for the environments this equipment often sits in.

International Fire Code (IFC) Section 510

and its state and local amendments still govern in many jurisdictions that haven't yet adopted NFPA 1225 directly — and California, Texas, and Florida each layer their own amendments and enforcement standards on top.

FCC Part 90 rules

govern the radio spectrum these systems operate on. Installing or servicing a BDA/DAS system legally requires a technician holding a General Radiotelephone Operator License (GROL) — a credential many providers in this space don't actually carry.

Local AHJs conduct acceptance testing before occupancy and require annual recertification after — and the standards for passing vary by jurisdiction. Fortis technicians work directly with AHJs across every market we serve.

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how it works

ENGINEERED FOR COVERAGE. TESTED FOR CERTAINTY.

Every Fortis service relationship follows the same standard: thorough assessment, precise execution, clear documentation, and a team that stays accountable long after the work is done.

Building Survey & RF Coverage Testing

Every engagement starts with a full radio-frequency survey — mapping existing signal strength floor by floor, zone by zone, to identify every gap before the AHJ does.

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System Design

Fortis engineers design BDA capacity, antenna placement, and enclosure specifications around your building's actual construction and coverage gaps — not a generic amplifier dropped in a closet.

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Installation & Alarm Integration

Installation includes integration with your existing fire alarm system, so system troubles and signal failures report through the same monitoring pathway your fire systems already use.

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Acceptance Testing & AHJ Sign-Off

Fortis manages the acceptance testing process directly with your local AHJ — documenting coverage results in the format your jurisdiction requires for certificate of occupancy approval.

Ongoing monitoring and annual recertification keep your system — and your CO — from ever lapsing.

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FREQUENTLY ASKED QUESTIONS

FAQS ABOUT ERRCS & DAS SYSTEMS

We get asked a lot of questions about ERRCS & DAS Systems — here are some of the most common.

What's the difference between a DAS and a commercial cell phone signal booster?

A commercial cell booster amplifies consumer cellular signal for convenience. An ERRCS/DAS system is licensed, code-mandated infrastructure built specifically to carry public safety radio frequencies for fire, police, and EMS communication — a fundamentally different (and far more regulated) system, even though the underlying antenna technology looks similar.

Is ERRCS/DAS required in my building?

Requirements vary by jurisdiction, but the most common triggers are buildings over 50,000 square feet, structures of three stories or more, and any building with below-grade parking or occupied basement space. A Fortis RF coverage survey will tell you definitively whether your building meets the threshold in your specific AHJ.

What happens if my building fails its ERRCS/DAS recertification test?

A failed test typically results in a compliance notice from the AHJ with a remediation deadline — and in some jurisdictions, can affect your certificate of occupancy status until the deficiency is corrected. Fortis manages remediation and AHJ communication as part of every recertification engagement.

Who is legally allowed to install or service a DAS/BDA system?

FCC regulations require technicians working on BDA/DAS equipment to hold a General Radiotelephone Operator License (GROL). Fortis technicians carry this certification as standard.

How long does an ERRCS/DAS installation take?

Timelines depend on building size and coverage complexity, but most projects move from initial RF survey through design, installation, and AHJ acceptance testing within a matter of weeks, not months — with the survey and design phase typically the longest single step.

Does the system need battery backup?

Yes. Code requires a minimum 24-hour battery backup so the system continues operating during a power outage — precisely the scenario where emergency responder communication matters most.

WHY CHOOSE FORTIS FOR ERRCS & DAS SYSTEMS

The Fortis Difference

Most building owners never think about ERRCS/DAS until an AHJ flags it during a permit review — and by then, the clock is already running against a certificate of occupancy deadline.

Licensed, not just installed.

Every Fortis technician working on your system holds FCC GROL certification. That's not a nice-to-have in this field — it's the legal minimum, and not every provider in this space actually meets it.

Coverage that holds up under AHJ scrutiny.

We design to the coverage percentages your jurisdiction actually enforces, and we document the testing in the format your AHJ expects — because "close enough" doesn't pass an acceptance test.

Local expertise, wherever local is.

With deep experience across California, Texas, and Florida — three of the most active ERRCS/DAS enforcement environments in the country — Fortis technicians know the local amendments, not just the national code. And we bring the same rigor to ERRCS/DAS in every market we serve — mastering local AHJ expectations wherever your building operates.

Service Area

ERRCS & DAS SERVICE COVERAGE

Fortis Fire & Safety operates through a national network of regionally embedded fire and life safety companies — delivering ERRCS/DAS expertise in every market we serve, backed by the resources and standards of a premier national organization.

For national account inquiries, contact our National Accounts team.

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CJ Suppression

205 Lewis Court
Corona, CA 92882

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VFS Fire & Security Services

501 W. Southern Avenue
Orange, CA 92865

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LaMarco Systems

425 Huehl Rd Building 5
Northbrook, IL 60062

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Diversified Systems, Inc.

1103 Great Falls Court
Knightdale, NC 27545

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Integrated Fire & Security Systems

1970 Dana Drive
Fort Myers, FL 33907

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Lifesafety Management

2017 Corporate Drive
Boynton Beach, FL 33426

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Piper Fire Protection

13075 US Hwy 19 N
Clearwater, FL 33764

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DON'T LET A DEAD ZONE JEOPARDIZE YOUR C.O.

Talk to a Fortis ERRCS/DAS specialist about your building's coverage requirements.

(833) 3-FORTIS

Request an RF Coverage Survey

Fortis Family of Brands

Local expertise, national strength

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The best of both — in every market we serve.

Trust is built locally. It lives in the technician who knows your building, knows your local codes, and shows up when something goes wrong at midnight. It lives in the relationship between a fire protection company and the community it has served for decades. 

But capability is built at scale. The training standards, the technical resources, the purchasing power, the shared knowledge of a unified national organization — these are the things that make a local provider exceptional rather than merely adequate.

Fortis was built on this belief.

Our network of regionally rooted fire and life safety companies delivers genuine local expertise in every market we serve — technicians who know the regional AHJs, the local codes, and the specific demands of the facilities in their community. Behind each of them stands the full weight of a premier national organization.

You build. You create. You push the world forward.
‍We protect it all.