{"id":10053,"date":"2025-11-10T05:35:58","date_gmt":"2025-11-10T05:35:58","guid":{"rendered":"https:\/\/alsuprun.com\/blog\/?p=10053"},"modified":"2025-11-10T05:36:00","modified_gmt":"2025-11-10T05:36:00","slug":"radionics-d1256-and-d1257-system-annunciators","status":"publish","type":"post","link":"https:\/\/alsuprun.com\/blog\/radionics\/radionics-d1256-and-d1257-system-annunciators\/","title":{"rendered":"Radionics D1256 and D1257 System Annunciators"},"content":{"rendered":"<p><a href=\"https:\/\/alsuprun.com\/\" target=\"_blank\">Radionics<\/a>&#8216; D1256 and D1257 system annunciators are four-wire serial devices designed to work with its D9124 Addressable 24 VDC Fire Command Center as well as D9412, D7212, and D7412 Control\/Communicators. They feature highly visible blue vacuum fluorescent displays which display alarms or troubles of system alarms\/troubles easily &#8211; they&#8217;re easy to install, test, and maintain using all procedures outlined by Installation Guides, NFPA 72, Local Codes or authorities having Jurisdiction.<\/p>\n<h2>Installation<\/h2>\n<p>The D1256 and D1257 system annunciators connect to fire control\/communicator and fire detectors via four-wire cable (with shielded wiring being recommended if excessive EMI levels exist), with field wiring terminating on a four-pin connector on each unit&#8217;s rear side. Follow installation instructions, NFPA 72, local codes and Authority Having Jurisdiction when installing and testing these devices. The D9127U annunciator is polarity sensitive; ensure all POPIT loop wiring that connects to it are landed correctly to avoid point trouble; often disconnecting and reconnecting loop wiring momentarily will work to clear it. Smoke detectors require Detector Reset on either their panel or keypad by entering code>+Enter+Command+47 in order to reset them successfully.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Radionics&#8216; D1256 and D1257 system annunciators are four-wire serial devices designed to work with its D9124 Addressable 24 VDC Fire Command Center as well as D9412, D7212, and D7412 Control\/Communicators. They feature highly visible blue vacuum fluorescent displays which display alarms or troubles of system alarms\/troubles easily &#8211; they&#8217;re easy to install, test, and maintain [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[25],"tags":[],"class_list":["post-10053","post","type-post","status-publish","format-standard","hentry","category-radionics"],"_links":{"self":[{"href":"https:\/\/alsuprun.com\/blog\/wp-json\/wp\/v2\/posts\/10053","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/alsuprun.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/alsuprun.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/alsuprun.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/alsuprun.com\/blog\/wp-json\/wp\/v2\/comments?post=10053"}],"version-history":[{"count":1,"href":"https:\/\/alsuprun.com\/blog\/wp-json\/wp\/v2\/posts\/10053\/revisions"}],"predecessor-version":[{"id":10054,"href":"https:\/\/alsuprun.com\/blog\/wp-json\/wp\/v2\/posts\/10053\/revisions\/10054"}],"wp:attachment":[{"href":"https:\/\/alsuprun.com\/blog\/wp-json\/wp\/v2\/media?parent=10053"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/alsuprun.com\/blog\/wp-json\/wp\/v2\/categories?post=10053"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/alsuprun.com\/blog\/wp-json\/wp\/v2\/tags?post=10053"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}