消防报警主机

General Conventional Fire Alarm Control Panel with four Zones Key Specifications/Special Features •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.