Four Style B (Class B) Initiating Device Circuits (IDCs). All zones accept two-wire smoke detectors and any normally-open contact devices. One built-in, Style Y (Class B) Notification Appliance (Signal) Circuits (NACs). Alarm, Trouble and Supervisory, Form-C relays standard. 24-volt operation. Resettable four-wire smoke detector power @ 500 mA. Non-resettable power @ 500 mA. One-man walk-test programmable for silent or audible test. Disable/Enable control per IDC. Reverse polarity protection. |