{"product_id":"3-asu-edwards-est-audio-source-unit-for-est3-fire-and-mass-notification-systems","title":"3-ASU | Edwards EST Audio Source Unit for EST3 Fire and Mass Notification Systems","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-start=\"144\" data-end=\"396\"\u003eThe Edwards EST 3-ASU is an audio source unit designed for EST3 fire alarm and mass notification systems, supporting up to eight digital audio channels. It enables live paging, pre-recorded message playback, and seamless audio transmission over twisted pair or fiber optic connections for reliable communication.\u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8613%;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.775%;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8613%;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.775%;\"\u003eEdwards EST\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8613%;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.775%;\"\u003eFire Alarm Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8613%;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.775%;\"\u003e3-ASU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8613%;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.775%;\"\u003eAudio Source Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8613%;\"\u003e\u003cstrong\u003eSystem Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.775%;\"\u003eEST3 fire alarm and mass notification systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8613%;\"\u003e\u003cstrong\u003eAudio Channels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.775%;\"\u003e8 digital channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8613%;\"\u003e\u003cstrong\u003eAudio Transmission\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.775%;\"\u003eTwisted pair or fiber optic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8613%;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.775%;\"\u003eSupports live paging and pre-recorded messages\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8613%;\"\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.775%;\"\u003eAuxiliary audio input interface (paging\/telephone)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8613%;\"\u003e\u003cstrong\u003eIndicators\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.775%;\"\u003eVU display for paging output, Ready-to-Page LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8613%;\"\u003e\u003cstrong\u003eDigital Audio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.775%;\"\u003eHigh-quality transmission with greater noise immunity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8613%;\"\u003e\u003cstrong\u003eStandards\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.775%;\"\u003eUL 2572 (CCS, ACU, or LOC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8613%;\"\u003e\u003cstrong\u003eOptional Features\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.775%;\"\u003eLCD fire phone display, OSHPD seismic pre-approval\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8613%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.775%;\"\u003eFire alarm, MNEC, and emergency communications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8613%;\"\u003e\u003cstrong\u003eEnclosure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.775%;\"\u003eFits EST3 cabinets with standard power supplies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8613%;\"\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.775%;\"\u003eGray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 23.8613%;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.775%;\"\u003e15 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003e3-ASU\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe 3-ASU is an Edwards EST3 audio source unit engineered for integration into EST3 fire alarm and emergency communication systems. It provides eight digital audio channels for distributing paging and pre-recorded messages across networked panels with 3-ZA amplifiers. Audio data can be transmitted using twisted copper wiring or fiber optics, offering flexibility and enhanced noise immunity. Supporting Mass Notification\/Emergency Communication (MNEC) applications, the 3-ASU complies with UL 2572 and can be equipped with optional features such as fire phone LCD display and OSHPD seismic pre-approval.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEight Digital Channels: Provides multiple audio sources for paging, tones, and pre-recorded messages.\u003c\/li\u003e\n\u003cli\u003eFlexible Transmission: Sends high-quality audio over twisted pair wiring or single fiber optic filament.\u003c\/li\u003e\n\u003cli\u003eMass Notification Ready: UL 2572 listed for MNEC applications as CCS, ACU, or LOC.\u003c\/li\u003e\n\u003cli\u003eLive and Pre-Recorded Audio: Supports real-time paging alongside stored message playback.\u003c\/li\u003e\n\u003cli\u003eAuxiliary Audio Inputs: Interfaces with external paging systems, telephone networks, and campus-wide systems.\u003c\/li\u003e\n\u003cli\u003eUser Indicators: Includes VU meter display and Ready-to-Page LED for clear operational feedback.\u003c\/li\u003e\n\u003cli\u003eNoise-Immune Transmission: Digital format reduces interference for clear, reliable communication.\u003c\/li\u003e\n\u003cli\u003eScalable Design: Seamlessly integrates with EST3 panels and amplifiers for system-wide audio distribution.\u003c\/li\u003e\n\u003cli\u003eOptional Enhancements: Supports LCD fire phone call display and earthquake-hardened configurations.\u003c\/li\u003e\n\u003cli\u003eEnd-to-End Solution: Designed for life safety and emergency communication, including sleeping areas with low-frequency signaling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 3-ASU delivers the reliability and precision required for large-scale fire alarm and emergency communication systems in commercial, institutional, and high-occupancy environments.\u003c\/p\u003e","brand":"Edwards EST","offers":[{"title":"Default Title","offer_id":49105201168640,"sku":"3-ASU","price":1990.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/img_4645_edited-2-removebg-preview.png?v=1785542428","url":"https:\/\/alotechparts.com\/products\/3-asu-edwards-est-audio-source-unit-for-est3-fire-and-mass-notification-systems","provider":"Alo Tech Solutions","version":"1.0","type":"link"}