The Network Communications Module (NCM) provides NOTIFIER Intelligent Fire Alarm Control Panels, and NCA and NCA-2 Network Control Annunciators with a means to connect to NOTI•FIRE•NET™. Two types of NCM are available: NCM-W for connecting nodes with twisted-pair wire, and NCM-F for connecting nodes with fiber-optic cable.

NCM-W Features
• Supports twisted-pair wire medium.
• NFPA Style 4 (Class B) operation or NFPA Style 7 (Class A) operation.
• Two programmable data thresholds.
• Transformer coupling provides electrical isolation between nodes.
• Pluggable terminal wiring with strain relief.
• Pluggable service connector (feeds signal directly through) in the event that power must be removed from a node.
• 312.5 Kbaud transmission rate.
• Data is regenerated at each node.
• Two network ports to allow simultaneous connection to fire alarm control panel and to programming computer.
• Enables software and database upload/download over NOTI•FIRE•NET™.
• Repeaters are available to increase signal.
• Repeaters may be utilized to switch media type.
• Up to 3,000 feet (914.4 m) between nodes in a point-to-point fashion (actual distance varies with wire quality). 

NCM-F Features
• Supports fiber-optic medium.
• NFPA Style 4 (Class B) or Style 7 (Class A) operation.
• Data is immune to all environmental noise.
• Optical isolation prevents ground loops.
• NOTI•FIRE•NET™ fiber-optic medium.
• Fiber type: 62.5/125 micrometers (multimode); or 50/125 micrometers (multimode).

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