# ANSI/IEEE Audible siren form Canonical URL: https://eloragrid.ai/symbols/ansi-audible-siren Publisher: Elora Grid Updated: 2026-10-28 Lookup label: HAN1S Drawing use: Schematic Reference families: IEEE / ANSI, Manufacturer ## Symbol convention Convention: IEEE / ANSI Form: Siren Autodesk IEEE Symbol Preview: Miscellaneous, block HAN1S. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier. Related representation: [Audible siren](https://eloragrid.ai/symbols/iec-audible-siren) IEEE-library form of audible siren: a siren indication identifies an audible alarm output with the documented operating role. ## In plain English ### What does ANSI/IEEE Audible siren form mean? This reference locates audible siren in Autodesk's IEEE-oriented miscellaneous family. A siren indication identifies an audible alarm output with the documented operating role. The public library uses HAN1S for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number. ### A simple example Use the surrounding circuit labels and the project legend to identify the intended operating condition and connection. Carry the same device reference into the schedule or equipment document so the symbol can be reconciled with its real terminals, function and operating limits. ### What the drawings help you do State the alarm condition and the controlling circuit. The symbol alone does not prescribe tone pattern or evacuation meaning. State the alarm condition and the controlling circuit. The symbol alone does not prescribe tone pattern or evacuation meaning. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted. ### This particular reference IEEE-library form of audible siren: a siren indication identifies an audible alarm output with the documented operating role. The symbol alone does not prescribe tone pattern or evacuation meaning. ### Terms - Terminal: An identified point where a conductor connects. - Signal: Electrical information passed between devices, rather than necessarily the main power supply. - Rating: A value stating the conditions for which equipment is specified. Concept diagram: Identify the device and form → Read the connections and state → Check the equipment reference A guide to reading this reference. The original symbol illustration and its drawing notes appear below; these boxes are not a wiring diagram. - [Autodesk IEEE Symbol Preview — Miscellaneous](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-34282BFD-7B8E-48F3-A6ED-93ADBDDDFBD3.htm) ## What it represents This reference locates audible siren in Autodesk's IEEE-oriented miscellaneous family. A siren indication identifies an audible alarm output with the documented operating role. The public library uses HAN1S for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number. Use the surrounding circuit labels and the project legend to identify the intended operating condition and connection. Carry the same device reference into the schedule or equipment document so the symbol can be reconciled with its real terminals, function and operating limits. State the alarm condition and the controlling circuit. The symbol alone does not prescribe tone pattern or evacuation meaning. State the alarm condition and the controlling circuit. The symbol alone does not prescribe tone pattern or evacuation meaning. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted. ## How to read it - State the alarm condition and the controlling circuit. - The symbol alone does not prescribe tone pattern or evacuation meaning. ## Information to show or reference - Identify the associated device, circuit or diagram boundary. - State the alarm condition and the controlling circuit. - Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form. ## Important distinction The symbol alone does not prescribe tone pattern or evacuation meaning. ## Facts - Convention evidence: Autodesk IEEE Symbol Preview: Miscellaneous; published form: Siren. - Public vendor block: HAN1S. Vendor library token, not an IEEE symbol number. - Information added: State the alarm condition and the controlling circuit. - Preview: Independent educational concept; consult the publisher and applicable standard for the exact graphic - Artwork scope: Original educational geometry. Exact standard graphics, product ratings and terminal pinouts are not certified. ## Public references - [Autodesk IEEE Symbol Preview — Miscellaneous](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-34282BFD-7B8E-48F3-A6ED-93ADBDDDFBD3.htm) — Autodesk. Public IEEE-oriented Miscellaneous table explicitly lists HAN1S as Siren. This supports the vendor convention context, not reproduction of the publisher graphic. ## Graphic scope Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.