{"schemaVersion":1,"slug":"ansi-audible-bell","name":"ANSI/IEEE Audible bell form","kind":"symbol","abbreviation":"HAN1B","aliases":["HAN1B","VAN1B","IEEE Bell","ANSI Audible bell"],"category":"control-circuits","drawingTypes":["Schematic"],"referenceFamilies":["IEEE / ANSI","Manufacturer"],"summary":"IEEE-library form of audible bell: a bell indication identifies an audible annunciation output in a control circuit.","description":["This reference locates audible bell in Autodesk's IEEE-oriented miscellaneous family. A bell indication identifies an audible annunciation output in a control circuit. The public library uses HAN1B 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.","Label the alarm purpose, supply and control contact. A bell symbol does not establish sound level or alarm priority. Label the alarm purpose, supply and control contact. A bell symbol does not establish sound level or alarm priority. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted."],"readingNotes":["Label the alarm purpose, supply and control contact.","A bell symbol does not establish sound level or alarm priority."],"drawingChecklist":["Identify the associated device, circuit or diagram boundary.","Label the alarm purpose, supply and control contact.","Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form."],"distinction":"A bell symbol does not establish sound level or alarm priority.","facts":[{"label":"Convention evidence","value":"Autodesk IEEE Symbol Preview: Miscellaneous; published form: Bell."},{"label":"Public vendor block","value":"HAN1B. Vendor library token, not an IEEE symbol number."},{"label":"Information added","value":"Label the alarm purpose, supply and control contact."},{"label":"Preview","value":"Independent educational concept; consult the publisher and applicable standard for the exact graphic"},{"label":"Artwork scope","value":"Original educational geometry. Exact standard graphics, product ratings and terminal pinouts are not certified."}],"references":[{"sourceId":"ansi-autodesk-34282bfd-7b8e-48f3-a6ed-93adbdddfbd3","relevance":"Public IEEE-oriented Miscellaneous table explicitly lists HAN1B as Bell. This supports the vendor convention context, not reproduction of the publisher graphic."}],"related":["iec-audible-bell","relay-coil","normally-open-contact"],"artwork":"s28-ansi-audible-bell","publishedOn":"2026-10-28","updatedOn":"2026-10-28","provenance":"independent-public-research","symbolVariant":{"convention":"IEEE / ANSI","form":"Bell","reference":"Autodesk IEEE Symbol Preview: Miscellaneous, block HAN1B. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier.","counterpart":"iec-audible-bell"},"plainEnglish":{"title":"What does ANSI/IEEE Audible bell form mean?","introduction":"This reference locates audible bell in Autodesk's IEEE-oriented miscellaneous family. A bell indication identifies an audible alarm indication output in a control circuit. The public library uses HAN1B for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.","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.","drawings":"Label the alarm purpose, supply and control contact. A bell symbol does not establish sound level or alarm priority. Label the alarm purpose, supply and control contact. A bell symbol does not establish sound level or alarm priority. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted.","terms":[{"name":"Normally open / normally closed","meaning":"The contact state in the normal condition defined for the drawing."},{"name":"Terminal","meaning":"An identified point where a conductor connects."},{"name":"Signal","meaning":"Electrical information passed between devices, rather than necessarily the main power supply."}],"diagram":"flow","steps":["Identify the device and form","Read the connections and state","Check the equipment reference"],"caption":"A guide to reading this reference. The original symbol illustration and its drawing notes appear below; these boxes are not a wiring diagram.","sources":[{"label":"Autodesk IEEE Symbol Preview — Miscellaneous","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-34282BFD-7B8E-48F3-A6ED-93ADBDDDFBD3.htm"}],"detail":"IEEE-library form of audible bell: a bell indication identifies an audible alarm indication output in a control circuit. A bell symbol does not establish sound level or alarm priority.","profileId":"reviewed-symbol-20261028"},"url":"https://eloragrid.ai/symbols/ansi-audible-bell","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/ansi-audible-bell.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"ansi-autodesk-34282bfd-7b8e-48f3-a6ed-93adbdddfbd3","title":"Autodesk IEEE Symbol Preview — Miscellaneous","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-34282BFD-7B8E-48F3-A6ED-93ADBDDDFBD3.htm","type":"cad-reference","scope":"Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.","checkedOn":"2026-10-14","reuse":"link-only","relevance":"Public IEEE-oriented Miscellaneous table explicitly lists HAN1B as Bell. This supports the vendor convention context, not reproduction of the publisher graphic."}]}