Mircom’s FX-3500 Series systems are powerful intelligent fire / agent release control panels that are UL/ULC listed.


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Mircom’s FX-3500 Series systems are powerful Intelligent Fire / Agent Release Control Units that are UL/ULC listed for fire alarm services, including releasing service.

The FX-3500 Series provides up to three intelligent Data Communication Links (DCLs) / Signaling Line Circuits (SLCs) that support a new AP protocol, which is faster and has capacity for up to 954 intelligent devices.

In addition, the FX-3500 Series has backward compatibility support for CLIP devices. The FX-3500 Series systems are recommended for both new and retrofit fire detection and/or special-hazard/critical-infrastructure suppression/special agent applications.

Capable of releasing up to six discrete physical hazard zones, the FX-3500 offers exceptional value for complex installations.

Elegant configuration options by onsite laptop, or when required by the Engineer of Record, by remote PC via modem, the FX-3500
can be operational with minimal set up time.

Typically these environments require agent-based suppression solutions easily managed by the FX-3500 Intelligent Addressable Release Control Unit.

Agency Listings

Intelligent addressable fire alarm with releasing control.


  • New fast AP protocol, extending number of devices on the loops, up to 954 (318 X3)
  • Panel supports both AP and CLIP protocol
  • Uses USB key for enhanced security
  • Utilizing cross-zoning or counting detection
  • Flush or Surface mountable with no additional hardware required
  • Utilizes the universal Mircom enclosure
  • The FX-3500 Series RCUs are fully expandable to meet the demanding requirements for mission critical facilities, both inside the high value asset areas and also in the office environments


  • One onboard SLC/DCL communication circuit that supports up to 318 addressable devices/points
  • Expandable to three SLC/DCL communication circuits that supports up to 954 addressable devices/points
  • Reliable and industry proven dedicated releasing power supply
  • Six dedicated hazard zone LED indicators
  • Convenient USB Programming port
  • Built-in UDACT/DACT for remote monitoring
  • Enhanced tactile response for operator interface
  • 4 x 20 character Liquid Crystal Display (LCD)
  • Easy to read numerical keypad
  • 10 Ampere (Amp.) Power Supply to satisfy typical releasing load requirements
  • Four Class A/B Notification Appliance Circuits (NAC) rated at 1.5Amp. each
  • SLC is capable of NFPA 72 Style 4, Style 6, or Style 7 wiring & ULC’s DCL-A & DCL-B
  • Resettable auxiliary power supply
  • Four easy to read status queues with selector switches and LEDs for Alarm, Supervisory, Trouble and Building Safety (Formerly Monitor) Input visual indications
  • Supports up to seven remote annunciators
  • Accessible multifunction RS-232 port for:
    • Audio Interface
    • Serial Communication interface
  • RS-485 Interface for remote LCD/LED Annunciators and other devices
  • Optional City Tie/Polarity Reversal module for central station monitoring
  • Cross-zoned or Counting Zone Smoke Detection programming to enable release by either counting active zone detection circuits or active cross-zoned detection circuits (includes options for single, double, triple and 2 different inputs counting zones)


  • Audible alarm response within three seconds of activation in Advanced Protocol mode (when using AP devices only);
  • AP is a completely digital protocol
  • AP is an Interrupt base protocol
  • Individual LED Control
  • Releasing capability for up to 6 Zones
  • Supports Pre-Action/Agent Release and Deluge Applications
  • Supports up to 3 SLC loops and 954 points
  • Supports CLIP and AP System Sensor protocols
  • Built-in strobe synchronization support for Mircom, Potter/Amseco, System Sensor, Gentex and Wheelock protocols
  • Grouped inputs and outputs
  • NACs can be configured as Silenceable or Non-Silenceable for both signals and strobes
  • Group bypass with built-in false alarm prevention technology
  • Zone Counting
  • Built-in Drift Compensation for AP protocol
  • Positive Alarm Sequence
  • Configurable Signal Silence Inhibit, Auto Signal Silence, Two Stage Operation and One-Man Walk Test
  • Relay contacts for Common Alarm, Auxiliary/Alarm (Disconnectable), Common Supervisory and Common Trouble
  • Two event history logs comprised of a 400 event alarm log for alarm related events and a 400 event general log for all other events


  • The FX-3500 supports both flush and surface mount applications
  • Dimensions 26” x 14.5” x 4.2”
    66 cm x 36 cm x 11 cm
  • Modular display placement options
  • Fits up to 2, 18 Ampere Hour batteries
  • Durable CAT-30 lock and key
  • Removable enclosure door
  • Easy access to all modules for serviceability


  • Compatible with INX-10A Addressable Intelligent NAC Expander Panel
  • Supports Acclimate smoke detection sensors

Parts of the FX-3500 System


FX-3500 Intelligent Fire Alarm Control Unit

FX-3500RCU All features of the FX-3500 plus releasing capability included

Optional Adder Modules

RAX-1048TZDS Programmable LED Annunciator Module

PR-300 Polarity Reversal / City Tie Module

ALC-636 Dual Loop Controller Module


Remote Annunciators

RAM-3500-LCD Remote LCD Annunciator

RAX-LCD-Lite Remote Annunciator with large LCD display

RA-1000 Remote LED Annunciators

AGD-048 Adder Graphic Module

MGD-32 Master Graphic Driver Module

Advanced Protocol (AP) Detection

AP Intelligent Heat Detector

AP Intelligent Smoke Detector

MIX-M500AP Series Intelligent Monitor Modules

MIX-M500SAP/MIX-M500RAP Series Intelligent Control Modules

Clip Detection

Intelligent Heat Detection

Intelligent Smoke Detection

Intelligent Modules

Manual Pull Stations



Horns & Strobes


SS-2001 Abort Station

SS-2004 Abort Station

MP-300 End of Line Module

MP-3500 Solenoid EOL Modules

BC-160 Battery Cabinet