The NFS2-640 is engineered specifically for mid-size applications, and easily expanded via NOTIFIER’s intelligent fire alarm network, NOTI-FIRE-NET, to accommodate future building expansion. Adapts to Your Needs The NFS2-640’s modular design maximizes flexibility and allows customization to your specific fire protection needs. And should those needs change in the future, the NFS2-640 can adapt with the addition, removal, or replacement of system modules. Adapts to Your Environment Using ONYX Intelligent Sensing algorithms - built into every ONYX Series panel - the NFS2-640 learns the environment in which the smoke sensors are installed. The NFS2-640 self-optimizes each individual sensor alarm thresholds to speed response times and minimize, if not eliminate, nuisance alarms. • 1 SLC expandable to 2 • 636 intelligent points (159 detectors/159 modules per SLC) • 4 on-board NACs • Optional integrated digital voice evacuation (DVC) support • Networkable (NOTI-FIRE-NET) • 80 or 640 character LCD display with QWERTY keypad