{"id":13,"date":"2013-04-03T08:09:45","date_gmt":"2013-04-03T12:09:45","guid":{"rendered":"http:\/\/firealarmsboston.com\/?page_id=13"},"modified":"2017-11-17T13:21:06","modified_gmt":"2017-11-17T18:21:06","slug":"fire-alarm-systems-basics","status":"publish","type":"page","link":"https:\/\/www.firealarmsboston.com\/?page_id=13","title":{"rendered":"Fire Alarm Systems Basics"},"content":{"rendered":"<p><strong>Fire alarm systems are a combination of initiation devices tied into a main control panel. Any initiation device\u00a0that\u00a0activates will cause an alarm condition on the main control panel that will in turn activate notification devices, relays, and if set up, send notification of alarm to fire department via central station, masterbox, or radio transmitter.<\/strong><\/p>\n<figure id=\"attachment_79\" aria-describedby=\"caption-attachment-79\" style=\"width: 566px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/i0.wp.com\/firealarmsboston.com\/wp-content\/uploads\/2013\/04\/Fire_alarm_diag2.jpg\"><img loading=\"lazy\" class=\"size-full wp-image-79\" alt=\"Fire alarm block diagram\" src=\"https:\/\/i0.wp.com\/firealarmsboston.com\/wp-content\/uploads\/2013\/04\/Fire_alarm_diag2.jpg?resize=566%2C484\" width=\"566\" height=\"484\" srcset=\"https:\/\/i0.wp.com\/www.firealarmsboston.com\/wp-content\/uploads\/2013\/04\/Fire_alarm_diag2.jpg?w=566&amp;ssl=1 566w, https:\/\/i0.wp.com\/www.firealarmsboston.com\/wp-content\/uploads\/2013\/04\/Fire_alarm_diag2.jpg?resize=300%2C256&amp;ssl=1 300w\" sizes=\"(max-width: 566px) 100vw, 566px\" data-recalc-dims=\"1\" \/><\/a><figcaption id=\"caption-attachment-79\" class=\"wp-caption-text\">Fire alarm block diagram<\/figcaption><\/figure>\n<iframe src=\"\/\/docs.google.com\/viewer?url=http%3A%2F%2Ffirealarmsboston.com%2Fwp-content%2Fuploads%2F2013%2F04%2Falarm_training1.ppt&hl=en_US&embedded=true\" class=\"gde-frame\" style=\"width:100%; height:500px; border: none;\" scrolling=\"no\"><\/iframe>\n<p class=\"gde-text\"><a href=\"http:\/\/firealarmsboston.com\/wp-content\/uploads\/2013\/04\/alarm_training1.ppt\" class=\"gde-link\">Download (PPT, 783KB)<\/a><\/p>\n<p>Here is a good site with a many articles about fire alarms. <a href=\"http:\/\/ecmweb.com\/design\/understanding-basic-fire-alarm-systems\">http:\/\/ecmweb.com\/design\/understanding-basic-fire-alarm-systems<\/a><\/p>\n<div class=\"sharedaddy sd-sharing-enabled\"><div class=\"robots-nocontent sd-block sd-social sd-social-icon-text sd-sharing\"><h3 class=\"sd-title\">Share this:<\/h3><div class=\"sd-content\"><ul><li class=\"share-print\"><a rel=\"nofollow noopener noreferrer\" data-shared=\"\" class=\"share-print sd-button share-icon\" href=\"https:\/\/www.firealarmsboston.com\/?page_id=13\" target=\"_blank\" title=\"Click to print\"><span>Print<\/span><\/a><\/li><li class=\"share-facebook\"><a rel=\"nofollow noopener noreferrer\" data-shared=\"sharing-facebook-13\" class=\"share-facebook sd-button share-icon\" href=\"https:\/\/www.firealarmsboston.com\/?page_id=13&amp;share=facebook\" target=\"_blank\" title=\"Click to share on Facebook\"><span>Facebook<\/span><\/a><\/li><li class=\"share-linkedin\"><a rel=\"nofollow noopener noreferrer\" data-shared=\"sharing-linkedin-13\" class=\"share-linkedin sd-button share-icon\" href=\"https:\/\/www.firealarmsboston.com\/?page_id=13&amp;share=linkedin\" target=\"_blank\" title=\"Click to share on LinkedIn\"><span>LinkedIn<\/span><\/a><\/li><li class=\"share-twitter\"><a rel=\"nofollow noopener noreferrer\" data-shared=\"sharing-twitter-13\" class=\"share-twitter sd-button share-icon\" href=\"https:\/\/www.firealarmsboston.com\/?page_id=13&amp;share=twitter\" target=\"_blank\" title=\"Click to share on Twitter\"><span>Twitter<\/span><\/a><\/li><li class=\"share-pinterest\"><a rel=\"nofollow noopener noreferrer\" data-shared=\"sharing-pinterest-13\" class=\"share-pinterest sd-button share-icon\" href=\"https:\/\/www.firealarmsboston.com\/?page_id=13&amp;share=pinterest\" target=\"_blank\" title=\"Click to share on Pinterest\"><span>Pinterest<\/span><\/a><\/li><li><a href=\"#\" class=\"sharing-anchor sd-button share-more\"><span>More<\/span><\/a><\/li><li class=\"share-end\"><\/li><\/ul><div class=\"sharing-hidden\"><div class=\"inner\" style=\"display: none;\"><ul><li class=\"share-reddit\"><a rel=\"nofollow noopener noreferrer\" data-shared=\"\" class=\"share-reddit sd-button share-icon\" href=\"https:\/\/www.firealarmsboston.com\/?page_id=13&amp;share=reddit\" target=\"_blank\" title=\"Click to share on Reddit\"><span>Reddit<\/span><\/a><\/li><li class=\"share-tumblr\"><a rel=\"nofollow noopener noreferrer\" data-shared=\"\" class=\"share-tumblr sd-button share-icon\" href=\"https:\/\/www.firealarmsboston.com\/?page_id=13&amp;share=tumblr\" target=\"_blank\" title=\"Click to share on Tumblr\"><span>Tumblr<\/span><\/a><\/li><li class=\"share-end\"><\/li><li class=\"share-pocket\"><a rel=\"nofollow noopener noreferrer\" data-shared=\"\" class=\"share-pocket sd-button share-icon\" href=\"https:\/\/www.firealarmsboston.com\/?page_id=13&amp;share=pocket\" target=\"_blank\" title=\"Click to share on Pocket\"><span>Pocket<\/span><\/a><\/li><li class=\"share-end\"><\/li><\/ul><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Fire alarm systems are a combination of initiation devices tied into a main control panel. Any initiation device\u00a0that\u00a0activates will cause an alarm condition on the main control panel that will in turn activate notification devices, relays, and if set up, send notification of alarm to fire department via central station, masterbox, or radio transmitter. Here &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.firealarmsboston.com\/?page_id=13\" class=\"read-more\">Read More<span class=\"screen-reader-text\"> &#8220;Fire Alarm Systems Basics&#8221;<\/span><\/a><\/p>\n<div class=\"sharedaddy sd-sharing-enabled\"><div class=\"robots-nocontent sd-block sd-social sd-social-icon-text sd-sharing\"><h3 class=\"sd-title\">Share this:<\/h3><div class=\"sd-content\"><ul><li class=\"share-print\"><a rel=\"nofollow noopener noreferrer\" data-shared=\"\" class=\"share-print sd-button share-icon\" href=\"https:\/\/www.firealarmsboston.com\/?page_id=13\" target=\"_blank\" title=\"Click to print\"><span>Print<\/span><\/a><\/li><li class=\"share-facebook\"><a rel=\"nofollow noopener noreferrer\" data-shared=\"sharing-facebook-13\" class=\"share-facebook sd-button share-icon\" href=\"https:\/\/www.firealarmsboston.com\/?page_id=13&amp;share=facebook\" target=\"_blank\" title=\"Click to share on Facebook\"><span>Facebook<\/span><\/a><\/li><li class=\"share-linkedin\"><a rel=\"nofollow noopener noreferrer\" data-shared=\"sharing-linkedin-13\" class=\"share-linkedin sd-button share-icon\" href=\"https:\/\/www.firealarmsboston.com\/?page_id=13&amp;share=linkedin\" target=\"_blank\" title=\"Click to share on LinkedIn\"><span>LinkedIn<\/span><\/a><\/li><li class=\"share-twitter\"><a rel=\"nofollow noopener noreferrer\" data-shared=\"sharing-twitter-13\" class=\"share-twitter sd-button share-icon\" href=\"https:\/\/www.firealarmsboston.com\/?page_id=13&amp;share=twitter\" target=\"_blank\" title=\"Click to share on Twitter\"><span>Twitter<\/span><\/a><\/li><li class=\"share-pinterest\"><a rel=\"nofollow noopener noreferrer\" data-shared=\"sharing-pinterest-13\" class=\"share-pinterest sd-button share-icon\" href=\"https:\/\/www.firealarmsboston.com\/?page_id=13&amp;share=pinterest\" target=\"_blank\" title=\"Click to share on Pinterest\"><span>Pinterest<\/span><\/a><\/li><li><a href=\"#\" class=\"sharing-anchor sd-button share-more\"><span>More<\/span><\/a><\/li><li class=\"share-end\"><\/li><\/ul><div class=\"sharing-hidden\"><div class=\"inner\" style=\"display: none;\"><ul><li class=\"share-reddit\"><a rel=\"nofollow noopener noreferrer\" data-shared=\"\" class=\"share-reddit sd-button share-icon\" href=\"https:\/\/www.firealarmsboston.com\/?page_id=13&amp;share=reddit\" target=\"_blank\" title=\"Click to share on Reddit\"><span>Reddit<\/span><\/a><\/li><li class=\"share-tumblr\"><a rel=\"nofollow noopener noreferrer\" data-shared=\"\" class=\"share-tumblr sd-button share-icon\" href=\"https:\/\/www.firealarmsboston.com\/?page_id=13&amp;share=tumblr\" target=\"_blank\" title=\"Click to share on Tumblr\"><span>Tumblr<\/span><\/a><\/li><li class=\"share-end\"><\/li><li class=\"share-pocket\"><a rel=\"nofollow noopener noreferrer\" data-shared=\"\" class=\"share-pocket sd-button share-icon\" href=\"https:\/\/www.firealarmsboston.com\/?page_id=13&amp;share=pocket\" target=\"_blank\" title=\"Click to share on Pocket\"><span>Pocket<\/span><\/a><\/li><li class=\"share-end\"><\/li><\/ul><\/div><\/div><\/div><\/div><\/div>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"spay_email":""},"jetpack_shortlink":"https:\/\/wp.me\/P3k9h9-d","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":162,"url":"https:\/\/www.firealarmsboston.com\/?page_id=162","url_meta":{"origin":13,"position":0},"title":"The Fire Alarm System","date":"April 22, 2013","format":false,"excerpt":"Fire alarm systems are a combination of initiation devices tied into a main control panel. Any initiation device that activates will cause an alarm condition on the main control panel that will in turn activate notification devices, relays, and if set up, send notification of alarm to fire department via\u2026","rel":"","context":"Similar post","img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":16,"url":"https:\/\/www.firealarmsboston.com\/?page_id=16","url_meta":{"origin":13,"position":1},"title":"Initiation Devices","date":"April 3, 2013","format":false,"excerpt":"Initiation devices activate an alarm signal to the fire alarm control panel. There are many kinds of devices, and we are trying to give you an understanding of the most common ones in this section.","rel":"","context":"Similar post","img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":36,"url":"https:\/\/www.firealarmsboston.com\/?page_id=36","url_meta":{"origin":13,"position":2},"title":"Bells","date":"April 3, 2013","format":false,"excerpt":"Today bells are used mostly on sprinkler systems. They used to be widely used in fire alarm systems until the invention of the horn\/strobe and\/or speaker\/strobe.","rel":"","context":"Similar post","img":{"alt_text":"","src":"https:\/\/i0.wp.com\/firealarmsboston.com\/wp-content\/uploads\/2013\/04\/SSM_SSV.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":32,"url":"https:\/\/www.firealarmsboston.com\/?page_id=32","url_meta":{"origin":13,"position":3},"title":"Horn\/Strobes","date":"April 3, 2013","format":false,"excerpt":"Horn\/strobes are the most common notification device used in fire alarm systems. They provide audible and visual notification of an alarm condition and evacuation of the affected area(s).","rel":"","context":"Similar post","img":{"alt_text":"","src":"https:\/\/i0.wp.com\/firealarmsboston.com\/wp-content\/uploads\/2013\/04\/P2R.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":29,"url":"https:\/\/www.firealarmsboston.com\/?page_id=29","url_meta":{"origin":13,"position":4},"title":"Flow and Tamper Switches","date":"April 3, 2013","format":false,"excerpt":"Flow switches and tamper switches are devices used on sprinkler systems. Flow switches detect water movement or drop in pressure, and activate alarms. Tamper switches detect when a sprinkler valve has been partially to fully closed and usually activates a trouble signal at the control, although some cities require them\u2026","rel":"","context":"Similar post","img":{"alt_text":"","src":"https:\/\/i0.wp.com\/firealarmsboston.com\/wp-content\/uploads\/2013\/04\/WFD20.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":45,"url":"https:\/\/www.firealarmsboston.com\/?page_id=45","url_meta":{"origin":13,"position":5},"title":"Duct Detectors","date":"April 3, 2013","format":false,"excerpt":"Duct detectors are devices installed on ventillation systems ducts that detect the presence of smoke and send out a trouble signal when activated, while shutting down the hvac unit the duct is attached to. In the past these units used to generate alarms, but due to high false alarms, they\u2026","rel":"","context":"Similar post","img":{"alt_text":"","src":"https:\/\/i0.wp.com\/firealarmsboston.com\/wp-content\/uploads\/2013\/04\/DNRHS.jpg?resize=350%2C200","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.firealarmsboston.com\/index.php?rest_route=\/wp\/v2\/pages\/13"}],"collection":[{"href":"https:\/\/www.firealarmsboston.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.firealarmsboston.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.firealarmsboston.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.firealarmsboston.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=13"}],"version-history":[{"count":8,"href":"https:\/\/www.firealarmsboston.com\/index.php?rest_route=\/wp\/v2\/pages\/13\/revisions"}],"predecessor-version":[{"id":262,"href":"https:\/\/www.firealarmsboston.com\/index.php?rest_route=\/wp\/v2\/pages\/13\/revisions\/262"}],"wp:attachment":[{"href":"https:\/\/www.firealarmsboston.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=13"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}