Notifier NCM-1 Noise Control Module

The Notifier NCM-1 is a noise control module that reduces common-mode noise on the SLC to help maintain reliable communication in compatible Notifier systems. It allows the use of untwisted, unshielded wire on the SLC in qualifying applications, connects directly in line with the signaling circuit, and uses pig-tail leads for wiring. Key Specifications: Type: Noise control module for SLC wiring Core Function(s): Reduces common-mode noise on both SLC conductors to improve signaling reliability Loop/Protocol: Connects directly in line with the SLC loop Power: Powered by the SLC loop; no external power required Indicators/UI: Pig-tail type connections; cabinet or external mounting Wiring: Supports untwisted, unshielded SLC wire in qualifying non-audio applications; multiple NCM-1 modules may be used for T-tapped non-shielded connections System Compatibility: Works with compatible Notifier intelligent fire alarm control panels and SLC loops where common-mode noise reduction is needed. Applications with audio or firefighters' telephones still require twisted, shielded wiring for all circuits, including the SLC.