Polarity Reversal Relay Module (UIO Mount)

Availability: Estimated 6 - 8 Business Days

  • Factory New
Brand: EST FireAlarm.com Part #: 44855 Categories: , Manufacturer Part #: SIGA-MCRR


The Control Relay Module and the Polarity Reversal Relay Module are part of the Signature Series system. They are intelligent analog addressable devices available in either plug-in (UIO) versions, or standard 1-gang mount versions.

The SIGA-CRR/MCRR Polarity Reversal Relay Module provides a Form “C” dry relay contact to power and activate a series of SIGA-AB4G Audible Sounder Bases. Upon command from the Signature loop controller, the SIGA-CRR reverses the polarity of its 24 Vdc output, thus activating all Sounder Bases on the data loop.

Plug-in UIO versions (SIGA-MCR and SIGA-MCRR) are part of the UIO family of plug-in Signature Series modules. They function identically to the standard mount versions, but take advantage of the modular flexibility and easy installation that characterizes all UIO modules. Two- and six-module UIO motherboards are available. All wiring connections are made to terminal blocks on the motherboard. UIO assemblies may be mounted in Edwards enclosures.


Weight .18 lbs





  • Provides one no/nc contact (SIGA-CR/MCR)
  • Allows group operation of sounder bases
  • Plug-in (UIO) or standard 1-gang mount
  • Automatic device mapping
  • Electronic addressing
  • Intelligent device with microprocessor


Edwards Control Relay Modules Data Sheet

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