{"product_id":"s54339-a5-a1-siemens-pad-5-mb-main-board-for-notification-power-extender","title":"S54339-A5-A1 | Siemens PAD-5-MB Main Board for Notification Power Extender","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-end=\"396\" data-start=\"144\"\u003eThe Siemens S54339-A5-A1 is the PAD-5-MB main board designed for use with PAD-5 notification-extender units in Siemens Modular fire alarm systems. It provides remote auxiliary power for signaling appliances while supporting expansion of multiple notification appliance circuits (NACs). The module ensures reliable communication with the XDLC loop card and delivers robust functionality for life safety applications.\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFire Alarm Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eS54339-A5-A1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNotification Appliance Extender Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePAD-5-MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem Application\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSiemens Modular Fire Alarm Panels (X-Series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eP2 loop via XDLC card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAddressing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 system address, programmed via DPU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNAC Circuits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 Class A or 8 Class B (configurable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWiring Isolation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIntegrated Class X device\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelays\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTrouble relay for supervision\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC powered\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Support\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTemperature-compensated charging circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIndicators\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDiagnostic LEDs for status\/faults\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCapacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 32 PAD-5 boards per XDLC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSiemens XDLC and PAD-5 notification extenders\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.25 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003eS54339-A5-A1\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe S54339-A5-A1 is the PAD-5-MB main board for Siemens PAD-5 notification power extender units, engineered to expand notification capacity in X-Series modular fire alarm control systems. It connects directly to the P2 loop of a Siemens XDLC (Device Loop Card) and can support up to 32 interconnected PAD-5 units or expansion boards per loop. With one programmable address set through the Siemens DPU device programmer, the PAD-5-MB enables flexible and scalable notification power distribution. Its design incorporates advanced features such as Class A\/B NAC wiring support, Class X isolation, onboard diagnostics, and temperature-compensated battery charging, making it a critical element in expanding large-scale fire alarm installations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRemote Auxiliary Power: Supplies additional power to notification appliances in Siemens fire alarm systems.\u003c\/li\u003e\n\u003cli\u003eExpandable NAC Support: Provides four Class A or eight Class B circuits with mix-and-match configuration.\u003c\/li\u003e\n\u003cli\u003eXDLC Loop Integration: Connects via P2 loop to Siemens Modular fire-alarm control panels.\u003c\/li\u003e\n\u003cli\u003eAddressable Programming: Supports one system address configured through the Siemens DPU programmer.\u003c\/li\u003e\n\u003cli\u003eBuilt-In Isolation: Class X wiring isolator enhances circuit fault tolerance.\u003c\/li\u003e\n\u003cli\u003eBattery Charging: Includes temperature-compensated charging circuits for reliable backup power.\u003c\/li\u003e\n\u003cli\u003eSystem Monitoring: Equipped with “trouble” relay outputs for remote supervision.\u003c\/li\u003e\n\u003cli\u003eDiagnostic LEDs: Provides clear visual indicators for status and fault conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe S54339-A5-A1 delivers the reliability and scalability required for extending notification circuits in Siemens Modular fire alarm systems.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":49105199530240,"sku":"S54339-A5-A1","price":1196.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/s-l1600_4df79aaf-a5b2-483e-b0ee-199bc94e890e.webp?v=1785542403","url":"https:\/\/alotechparts.com\/products\/s54339-a5-a1-siemens-pad-5-mb-main-board-for-notification-power-extender","provider":"Alo Tech Solutions","version":"1.0","type":"link"}