411 Series

411, 411UD, 411UDAC
Fire Alarm Communicator designed for a variety of fire and non-fire applications

Fire Alarm Communicator designed for a variety of fire and non-fire applications. It provides four channels (three on the 411) that accepts waterflow devices, two-wire and four-wire smoke detectors, pull stations, and other normally-open contact devices. Three models are available: 411 - Slave Communicator; 411UD - Slave Communicator with upload/download; 411UDAC - Stand-alone Communicator with upload/download.

Features & Benefits:

  • Fully programmable with Pro-411 or with Windows Inputs may be individually programmed for stand-alone
  • Fully supervised trigger inputs require a contact closure for activation
  • Optional digital programming unit with a keypad, model PRO-411


Electrical Specifications:

  • Programmable Channels 1 through 4
  • Power-limited circuitry
  • Fully supervised
  • Operation: All channels NFPA Style B (Class B). Requires Normally Open contact to trigger
  • Normal operating voltage: 12 VDC
  • Alarm current: 3.34 mA
  • End-of-line resistor: 2.2K ohms
  • Short-circuit current: 3.8 mA per channel/input



  • UL Listed: S2424
  • CSFM: 7300-0075:0174
  • MEA: 328-94-E Vol. III (411UD); 328-94-E Vol. IV (411)
  • FDNY: COA#6085


  • UL Listed: S624.
  • CSFM: 7300-0075:0174.
  • MEA: 328-94-E Volume


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Document Name Asset Type Type & Size Modified Date
Brochures pdf | 2.68 MB 04/24/2019
Data Sheets pdf | 0.11 MB 06/10/2019
Data Sheets pdf | 0.30 MB 06/10/2019