{"schemaVersion":1,"slug":"iec-combined-loudspeaker-and-microphone","name":"Combined loudspeaker and microphone","kind":"symbol","abbreviation":"HAN1B8","aliases":["Combined loudspeaker and microphone symbol","HAN1B8","Combined loudspeaker and microphone IEC reference"],"category":"installation-communications","drawingTypes":["Schematic"],"referenceFamilies":["IEC","Manufacturer"],"summary":"This representation identifies an electroacoustic device serving loudspeaker and microphone roles.","description":["This representation identifies an electroacoustic device serving loudspeaker and microphone roles.","Show transmit/receive connections and the documented operating modes.","Two acoustic roles do not imply simultaneous two-way operation."],"readingNotes":["Show transmit/receive connections and the documented operating modes.","Two acoustic roles do not imply simultaneous two-way operation."],"drawingChecklist":["Identify the associated device, circuit or diagram boundary.","Show transmit/receive connections and the documented operating modes.","Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form."],"distinction":"Two acoustic roles do not imply simultaneous two-way operation.","facts":[{"label":"Reference scope","value":"Specific public IEC-context family form"},{"label":"Publisher reference token","value":"HAN1B8 (Autodesk token; not a verified IEC database ID)"},{"label":"Information added","value":"Show transmit/receive connections and the documented operating modes."},{"label":"Preview","value":"Independent educational concept; consult the publisher and applicable standard for the exact graphic"}],"references":[{"sourceId":"iec-public-annunciation","relevance":"Official public publisher family name and reference context; vendor identifiers and graphics are distinct from licensed IEC database content."}],"related":["power-converter","generic-electrical-load"],"artwork":"edu-iec-combined-loudspeaker-and-microphone","publishedOn":"2026-10-14","updatedOn":"2026-10-14","provenance":"independent-public-research","symbolVariant":{"convention":"IEC","form":"Combined loudspeaker and microphone","reference":"Autodesk IEC-60617 Symbol Preview — Electroacoustic annunciation forms; vendor family reference, not certified IEC geometry or database identifier."},"url":"https://eloragrid.ai/symbols/iec-combined-loudspeaker-and-microphone","illustration":{"url":"https://eloragrid.ai/library/illustrations/iec-combined-loudspeaker-and-microphone.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"iec-public-annunciation","title":"Autodesk IEC-60617 preview: Electroacoustic annunciation forms","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-4602FA60-BECA-4C77-A435-73C8C05E41F7.htm","type":"cad-reference","scope":"Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.","checkedOn":"2026-10-14","reuse":"link-only","relevance":"Official public publisher family name and reference context; vendor identifiers and graphics are distinct from licensed IEC database content."}]}