MS-2. MS-2 is a two zone conventional fire alarm control panel compatible with the new I3 smoke detectors from System Sensor, and provides such advanced features as drift compensation, maintenance alert, and freeze warning.
The Ring of Fire describes the margins of the Pacific Plate, which is ringed by volcanoes and experiences frequent catastrophic earthquakes, from New Zealand to Indonesia to Japan and Russia's Kamchatka, through Alaska's southern fringe along the entire western coast of the Americas.
The theory states that Earth's outermost layer, the lithosphere, is broken into 7 large, rigid pieces called plates: the African, North American, South American, Eurasian, Australian, Antarctic, and Pacific plates. Several minor plates also exist, including the Arabian, Nazca, and Philippines plates.