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Application <br />NOTE: The installation of visible and audible signals are subject to national and local standards, codes, and ordinances. <br />Consult your Authority Having Jurisdiction for device installation requirements, application standards, and minimum performance specifications. <br />Horns <br />During installation, the horn is configured for steady or temporal <br />tone signal and either low (94 dBA) or high (98 dBA) output. When <br />temporal output is selected all horns on a common two -wire <br />circuit are self -synchronized (see specifications). External control <br />modules are not required for audible synchronization. <br />Suggested sound pressure level for each signaling zone used with <br />alert or alarm signals is at least 15dB above the average ambi- <br />ent sound level, or 5dB above the maximum sound level having a <br />duration of at least 60 seconds, whichever is greater, measured <br />5' (1.5m) above the floor. The average ambient sound level is the <br />RMS, A -weighted sound pressure measured over a 24-hour period. <br />Doubling the distance from the signal to the ear will theoretically result <br />in a 6 dB reduction of the received sound pressure level. The actual <br />effect depends on the acoustic properties of materials in the space. A 3 <br />dBA difference represents a barely noticeable change in volume. <br />l Angle - Degrees <br />105 968575 dBA 758595106 <br />—Temporal Horn (dBA) <br />Typical Sound Output Distribution <br />dBA measured at 10 ft in anechoic chamber <br />757 Series Temporal Horn ('HIGH' output) <br />Installation and <br />Mounting <br />All models fit to a standard flush <br />mounted, North -American two- <br />Mounting Plate <br />gang electrical box, 23/a inch (69 <br />mm) minimum. Optional flush <br />trims are not required. For surface <br />mount, use EDWARDS's custom <br />indoor and outdoor surface boxes <br />painted in color -matched red or <br />white epoxy. EDWARDS recom- <br />mends that fire alarm horn/strobes <br />always be installed in accordance <br />with the latest recognized edi- <br />tion of national and local fire alarm <br />codes. <br />?P\ <br />NO <br />Strobes <br />EDWARDS strobes are UL 1971-listed for use indoors as wall - <br />mounted public -mode notification appliances for the hearing im- <br />paired. Prevailing codes require strobes to be used where ambient <br />noise conditions exceed specified levels, where occupants use <br />hearing protection, and in areas of public accommodation. Con- <br />sult with your Authority Having Jurisdiction for details. <br />As part of the Enhanced Integrity line of products, 757 Series <br />strobes exceed UL synchronization requirements (within 10 mil- <br />liseconds other over a two-hour period) when used with a syn- <br />chronization source. Synchronization is important in order to avoid <br />epileptic sensitivity. <br />Integrity strobes are fully compatible with EDWARDS Genesis <br />signals. <br />NOTE: The flash intensity of some visible signals may not be adequate <br />to alert or waken occupants in the protected area. Research indicates <br />that the intensity of strobe needed to awaken 90%of sleeping persons is <br />approximately 100 cd. EDWARDS recommends that strobes in sleeping <br />rooms be rated at at least 110 cd. <br />WARNING: These devices will not operate without electrical power As <br />fires frequently cause power interruptions, further safeguards such as <br />backup power supplies may be required. <br />0 <br />screws (by others\ <br />Housing <br />5-1/2" (140mm) x 5-1/2" (140mm) x 5/6" (16mm) <br />Mounting Screw (provided) <br />North American 2-gang <br />electric box, 2-W (69mm) minimum <br />(Anernatil 4' square box <br />2-1/6' (54mm) deep) <br />M <br />Surface Box - 55/6" (143mm) sq. x <br />3-9/16" (91mm) deep <br />Page 2 of 6 <br />DATA SHEET E85001-0341 <br />Not to be used for installation purposes. Issue 1.2 <br />