{"product_id":"thorn-automated-976217-dc-audio-signal-module","title":"Thorn Automated 976217 DC Audio Signal Module","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\" class=\"PDq2pG_selectionAnchorContainer\"\u003eDescription:\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp data-start=\"18\" data-end=\"766\"\u003eThe Thorn Automated OXA-502SDA DC Audio Signal Module OXA-503SDA (P\/N 976217) is used in addressable fire alarm control systems to supervise and drive DC notification appliance circuits and emergency voice evacuation audio circuits. Commonly installed in Autocall TFX-500 and TFX-800 fire alarm systems serving commercial buildings, hospitals, schools, industrial facilities, and institutional life safety installations requiring supervised notification and audio signaling. Fire alarm technicians and \u003ca href=\"https:\/\/plgautomation.com\/collections\/hmi-operator-interfaces\"\u003esystem integrators\u003c\/a\u003e use this signal module for system expansion, preventive maintenance, replacement of failed signal driver modules, and restoration of supervised DC and audio notification circuits. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"768\" data-end=\"785\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"787\" data-end=\"1308\"\u003eThe Thorn Automated OXA-502SDA module provides supervised DC and audio signal outputs for notification appliances and emergency voice evacuation equipment while communicating with compatible Autocall fire alarm control panels. It is widely used to control horns, strobes, speakers, audio risers, and other notification devices in commercial and industrial fire detection systems where continuous circuit supervision and reliable emergency signaling are required. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1310\" data-end=\"1339\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1341\" data-end=\"2201\"\u003e• Brand: Thorn Automated Systems \/ Autocall\u003cbr data-start=\"1384\" data-end=\"1387\"\u003e• Model: OXA-502SDA \/ OXA-503SDA\u003cbr data-start=\"1419\" data-end=\"1422\"\u003e• Part Number: 976217\u003cbr data-start=\"1443\" data-end=\"1446\"\u003e• Additional Number: 19700402\u003cbr data-start=\"1475\" data-end=\"1478\"\u003e• Product Type: DC Audio Signal Driver Module\u003cbr data-start=\"1523\" data-end=\"1526\"\u003e• Function: Supervised DC and Audio Signal Driver\u003cbr data-start=\"1575\" data-end=\"1578\"\u003e• System Type: Addressable Fire Alarm System\u003cbr data-start=\"1622\" data-end=\"1625\"\u003e• Compatible Systems: Autocall TFX-500 and TFX-800 Fire Alarm Control Panels\u003cbr data-start=\"1701\" data-end=\"1704\"\u003e• Application: Emergency Voice Evacuation and Notification Appliance Control\u003cbr data-start=\"1780\" data-end=\"1783\"\u003e• Mounting: OXM-501SDA Motherboard Assembly\u003cbr data-start=\"1826\" data-end=\"1829\"\u003e• End-of-Line Resistor: 27 kΩ, 1 W (P\/N 976250)\u003cbr data-start=\"1876\" data-end=\"1879\"\u003e• Audio Riser End-of-Line Resistor: 5.1 kΩ, 2 W (P\/N 4281-050)\u003cbr data-start=\"1941\" data-end=\"1944\"\u003e• OXA-503SDA DC Return Supervision Relay: P\/N 19240410\u003cbr data-start=\"1998\" data-end=\"2001\"\u003e• Communication: Addressable Loop Interface\u003cbr data-start=\"2044\" data-end=\"2047\"\u003e• Installation: Plug-In Module\u003cbr data-start=\"2077\" data-end=\"2080\"\u003e• Designed for Continuous Life Safety Operation\u003cbr data-start=\"2127\" data-end=\"2130\"\u003e• OEM Fire Alarm System Component \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"2203\" data-end=\"2227\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"2229\" data-end=\"2393\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• Thorn Automated Systems OXA-501SDA 976186\u003cbr data-start=\"2272\" data-end=\"2275\"\u003e• Thorn Grinnell OXA-504SDA 976216\u003cbr data-start=\"2309\" data-end=\"2312\"\u003e• Thorn Automated Systems OXA-500SDA 976091\u003c\/p\u003e","brand":"Thorn","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51714022048046,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_4d2a7d17-fdb6-44fa-8e51-b039be213651.jpg?v=1770414040","url":"https:\/\/plgautomation.com\/products\/thorn-automated-976217-dc-audio-signal-module","provider":"PLG Automation ","version":"1.0","type":"link"}