The 24V Smoke Loop Expansion SnapCard allows you to add 24V 2-wire smoke detectors to commercial Advent fire/security panels. The panel provides false alarm prevention (alarm verification) and AC and battery supervision. The card is installed in either the primary or secondary snapcard slots of the panel.
The card provides the system with power for style A class B smoke detectors and an auxiliary regulated 24 VDC supervised (ground fault only), unswitched, and power limited output. Only one 24V Smoke Loop Snapcard is allowed per Advent panel. One 24V, 2-wire Style A (Class B) supervised smoke detector initiating device circuit that provides power for up to 20 smoke detectors. Converts Advent Panels onboard 2-wire smoke loop from 12V to 24V. One regulated 24 VDC supervised (ground fault only), unswitched, power-limited output (current limited to 1.5A). False alarm prevention: alarm verification for fire points. When the panel receives an alarm from the smoke detector, the panel briefly interrupts power to the smoke loop. Smoke detectors reset and recheck the alarm.