ADRF FiRe™ Series: Code-Compliant Connectivity for Emergency Response
When first responders enter a building during an emergency, seamless communication is not just helpful—it is essential for safeguarding lives and ensuring coordinated action. Modern construction materials and layouts can create signal dead zones, risking the safety of firefighters, EMS, and law enforcement as they work inside buildings of every type, size, and industry. The ADRF FiRe™ Series, available through MCA’s partnership with Advanced RF Technologies, provides robust, code-compliant in-building radio coverage designed specifically to support first responder operations in the most challenging environments.
What is the ADRF FiRe™ Series?
The ADRF FiRe Series is a comprehensive portfolio of public safety Distributed Antenna Systems (DAS) and Emergency Responder Communications Enhancement System (ERCES) solutions engineered to extend and reinforce mission-critical radio coverage indoors. Centered around the innovative FiRe-78-8-U, the series includes UL 2524–certified fiber-optic repeaters, optical expansion units, and high-power remote units that ensure reliable communications for fire, EMS, and law enforcement personnel. Every component is designed for full compliance with NFPA, IFC, and UL requirements, providing scalable, code-compliant coverage that adapts to a building’s unique layout and operational demands.
Integrated, Certified Solutions for Reliable Communication
At the heart of the FiRe Series is the FiRe-78-8-U, an all-in-one platform that combines a channelized 700/800 MHz repeater with a fiber DAS head end in a single, weather-resistant enclosure. Unlike fragmented systems that rely on multiple boxes and enclosures, this integrated approach streamlines installation and helps reduce deployment costs.
The FiRe-78-8-U is certified to UL 2524, Second Edition, and built to fully comply with NFPA, IFC, and relevant UL standards. This ensures it fulfills rigorous fire code and life safety requirements for in-building emergency responder communications, providing both the coverage and the reliability that authorities, building owners, and AHJs demand.
System Overview and Portfolio
FiRe-78-8-U
The FiRe-78-8-U is a digital, channelized 700/800 MHz repeater and fiber DAS head end, engineered as the system anchor for in-building emergency responder communications. Housed in a UL 2524 Second Edition–certified, Type 4/NEMA 4/IP66-rated enclosure, it is designed specifically for harsh indoor and outdoor environments.
Key Features and Technical Specifications:
- Comprehensive Channel Support: Accommodates up to 32 non-contiguous narrowband filters (12.5 kHz–200 kHz) and 2 wideband filters (3–10 MHz) across PS700 (incl. FirstNet Band 14) and PS800, with highly selective digital filtering for optimal adjacent channel interference mitigation.
- Extensive Frequency Coverage:
- PS700 (including Band 14): 758–768 MHz, 769–775 MHz (UL); 788–798 MHz, 799–805 MHz (DL)
- PS800: 851–861 MHz (DL); 806–816 MHz (UL)
- Output Power and Gain: Delivers up to 30 dBm composite output power from the head end and supports up to 33 dBm from each remote unit, with total system gain of up to 95 dB combined with the ADXV-R-3378P-U.
- Oscillation Detection & ALC: Sophisticated oscillation detection with automatic amplifier shutdown. Auto-level control offers ≥60 dB of dynamic range.
- Battery Backup & Alarming: Supports up to 24-hour operation with battery backup (external/sold separately). Extensive dry contact alarming capabilities, including supervised circuits for antenna, amplifier, AC/DC power supply, battery, and charger failures.
- Annunciator Integration: Supports up to two PSR-ANN-L annunciators for code-compliant visual and audible alarm outputs throughout a facility.
- Configuration and Monitoring: Remote management through Ethernet (RJ-45), web-GUI, SNMP, and dry contact alarms. Channel setting resolution down to 0.025 kHz for precise public safety frequency allocations.
- Compliance: Certified to UL 2524 Second Edition for in-building ERCES, and fully compliant with all major codes including NFPA 72, NFPA 1221/1225, IFC 2015/2018/2021. Meets FirstNet Band 14 requirements and FCC rules for public safety communication.
Physical and Environmental:
- Dimensions (W × D × H): 11.0 × 12.2 × 21.3 in (280 × 311 × 540 mm)
- Weight: 72.7 lbs (35.0 kg), natural convection cooled, operating temperature -22°F to +131°F (-30°C to +55°C)
- Power Supply: 100–240 VAC (200 W), natural convection cooling
FiRe-OEU-U (Optical Expansion Unit)
Purpose-built for system scalability, the FiRe-OEU-U enables expansion of the FiRe architecture to cover large or multi-building campuses.
Key Features and Technical Specifications:
- Expansion Capability: Each OEU supports eight additional remote units, allowing a standalone FiRe-78-8-U system to scale from 8 to up to 36 RUs for broad, flexible coverage.
- Zero Added Gain: Provides 0 dB system gain, ensuring transparent RF signal extension between the head end and remote units.
- Durable Construction: Housed in an IP66-rated enclosure for reliable operation regardless of environmental factors; supports both wall and rack mounting.
- Power and Backup: Powered by 100–240 VAC (30 W consumption), with 24 VDC backup input.
- Alarming and Monitoring: Comprehensive dry contact alarms, SNMP, and support for two PSR-ANN-L annunciators.
- Optical Interface: 8-port fiber optic connectors enable flexible system topology, with up to two internal optic terminal trays.
- Compliance: UL 2524 Second Edition, compliant with NFPA, IFC, and FCC code requirements.
- Physical Specs: 11.8 × 15.7 × 7.9 in (300 × 400 × 200 mm, with bracket), weight 33.5 lbs (15.2 kg), operating temperature 32°F–122°F (0°C–50°C).
ADXV-R-3378P-U Remote Unit
A fiber-optic, 2W remote amplifier designed to bring public safety signals deep into large or difficult areas, the ADXV-R-3378P-U is essential for delivering reliable first responder communication throughout expansive facilities.
Key Features and Technical Specifications:
- Frequency Coverage: Supports PS700 (Band 14 and standard 700 MHz) and PS800, fully meeting the requirements for public safety, FirstNet, and 800 MHz interoperability.
- Strong Output Power: Composite downlink power up to 33 dBm, ensuring reach into the most challenging RF environments.
- High System Gain: Downlink gain adjustable from 32 to 57 dB; uplink gain from -4 to 36 dB.
- Low Noise: Noise figure ≤5 dB at maximum gain for clear, intelligible communications.
- Code-Compliant: UL 2524 Second Edition certified, fully compatible with NFPA, IFC, FCC standards, and designed for seamless ERCES integration.
- Alarm and Network Integration: Dry contact alarming, Ethernet-based network management, and support for up to two annunciators.
- Environmental Robustness: Type 4/NEMA 4 enclosure; can operate in temperatures from -22°F to +131°F (-30°C to +55°C), humidity 5–90%.
- Power Supply: 110–240 VAC (with battery backup function), 102 W max consumption.
These products work together to provide a robust, fully compliant public safety DAS and ERCES solution that can be tailored for both modest facilities and sprawling campuses. With industry-leading filtering, resilient backup options, and built-in remote monitoring, the ADRF FiRe Series is engineered for mission-critical first responder operations—ready to meet the demands of AHJs and evolving life safety standards.
The FiRe Series is designed for first responder operations, with comprehensive monitoring and safety features. Automatic oscillation detection actively protects the system and broader radio environment. Integrated alarming presents instant, real-time notifications for faults related to antennas, amplifiers, power systems, batteries, and charging circuits—helping minimize downtime and maximize system reliability.
With support for remote PSR-ANN-L annunciators, building staff and first responders can receive visual and audible system alerts at designated locations, further ensuring awareness and rapid response if a communication issue arises.
Flexible and Scalable Architecture
From high-rises and hospitals to stadiums, data centers, and schools, the FiRe Series is engineered for scalability and adaptability. Fiber-optic expansion options and high-power remote units make it possible to deliver consistent coverage across individual large structures or interconnected campuses, regardless of complexity or size.
Expansion modules maintain full code compliance, while environmental ratings protect system components against challenging installation conditions and weather exposure.
Reliability in Critical Moments
Battery backup of up to 24 hours keeps communications active during power failures, and natural convection cooling reduces reliance on mechanical components, further improving long-term reliability. ADRF’s solution natively supports FirstNet Band 14, ready for current and future public safety broadband needs—including 5G as networks evolve.
Integrated Management and Monitoring
Web-based management tools, SNMP integration, and real-time alarming give facility managers and emergency personnel comprehensive oversight. Whether at a single site or across multiple facilities, centralized control and notification allow fast identification and remediation of issues—supporting both day-to-day reliability and code-mandated recordkeeping.
Expert Support and Code Compliance
MCA, in partnership with manufacturers like ADRF, delivers Public Safety DAS and ERCES solutions that prioritize technological excellence and strict compliance with fire and life safety codes. ADRF’s FiRe Series products are UL 2524-certified, meeting rigorous standards for system survivability, alarm supervision, and performance during fire events. These solutions also comply with NFPA codes (72, 1221/1225) and IFC requirements (2015, 2018, 2021 editions), ensuring features like 24-hour battery backup, signal reliability, and integration with Fire Alarm Control Panels.
Designed for durability, the FiRe Series meets Type 4/NEMA 4, IP66 standards, protecting components from water, dust, and environmental hazards. Compliance is critical for AHJ approval, occupancy permits, and reliable emergency communications. MCA’s expert engineers ensure smooth navigation of code compliance, from documentation to installation and testing, guaranteeing first responder safety and uninterrupted communication in emergencies.
Selecting the Right Solution for First Responder Communication
The ADRF FiRe Series is one of several leading Public Safety DAS and ERCES solutions available through MCA. Determining the right approach depends on a detailed consultative process—one where we assess each client’s building characteristics, risk profile, compliance requirements, and budget. Our team carefully evaluates your needs and surveys your site before recommending the system that provides the most reliable and cost-effective support for first responder communications. Whether the FiRe Series or another technology fits best, MCA delivers tailored solutions designed to protect lives and meet code with confidence.
About MCA
MCA is one of the largest and most trusted technology integrators in the United States, offering world-class voice, data, and security solutions that enhance the quality, safety, and productivity of customers, operations, and lives.
More than 65,000 customers trust MCA to provide carefully researched solutions for a safe, secure, and more efficient workplace. As your trusted advisor, we reduce the time and effort needed to research, install, and maintain the right solutions to make your workplace better.
Our team of certified professionals across the United States delivers a full suite of reliable technologies with a service-first approach. The MCA advantage is our extensive service portfolio to support the solution lifecycle from start to finish.
