MNS100-EXP Mass Notification System

The MNS-100EXP is a highly modular, state-of-the-art, emergency communications system providing highly configurable and reliable command and mass communication capabilities for any emergency situation, including fire and weather emergencies, terrorist events, biological, chemical and nuclear emergencies, and other threats. The MNS-100EXP accommodates virtually any host alarm system, integrating as quickly and easily as a single primary connection to an NAC output from the FACP. The MNS-100EXP meets the stringent requirements of NFPA 72, UL864 9th edition, and UFC 4-021-01.

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Expansion Options
External communications to the MNS-100EXP is provided through a serial port, which will accept signals from Sigcom DTX Radio Master Box and integrate with Sigcom’s TRX50 Emergency Reporting and Wide Area Mass Notification System.


  • Supervised dry contact closure primary activation input
  • 8 prioritized contact closure activation inputs
  • On-board DMR with up to 9 messages/6-1/2 minute capacity
  • Local recording of messages
  • Field-programmable 10 minute timeout of message annunciation
  • Remote microphone input
  • Aux audio inputs for paging, background music, and remote system control
  • 100 Watt, highly efficient Class D digital audio amplifier
  • 4 selectable speaker circuits (Class A or B wiring)
  • RS-232 or RS-485 communication with external systems

Remote microphone
Common alarm and trouble relays
70 VRMS transformer
High-level speaker audio input
Audio power booster function
8 speaker loop zone expansion card
Relay expansion card with 2 NAC and 6 Form-C relays
Add up to 15 LOCs (Local Operating Consoles)
8 supervised contact closure activation input card