{"schemaVersion":1,"slug":"iec-plug-jack-common-pin-number","name":"Plug and jack with common pin number","kind":"symbol","abbreviation":"X","aliases":["plug/jack shared pin label","common pin numbered connector","single pin number connector"],"category":"connections-wiring","drawingTypes":["Schematic"],"referenceFamilies":["IEC","Manufacturer"],"summary":"A plug and jack pair carrying one shared pin number for both halves rather than separate numbers on each half.","description":["Some connector symbols carry a single pin number shared by both mating halves, because the pin and socket on a given contact position carry the same number in the connector insert. This keeps schematics uncluttered and matches how most connector manufacturers number inserts.","The common number assumes both halves use matching numbering. Where a harness connector is mated to a board header with different numbering, separate pin numbers are needed. This is a publisher drafting variant, so the underlying connection meaning is the same as an ordinary plug and socket pair."],"readingNotes":["Confirm both halves use the same pin numbering scheme.","Read the pin number once for both halves."],"drawingChecklist":["Use common numbering only where the inserts match.","Keep the connector tag on the symbol.","Switch to separate numbers for mismatched pairs."],"distinction":"The common pin number form carries one number for both halves; the standard pair can carry different numbers per half.","facts":[{"label":"Graphic cue","value":"Plug and jack pair with one pin number between them"},{"label":"Publisher form","value":"Plug/Jack (common pin number), Autodesk IEC-60617 preview"},{"label":"Preview","value":"Original educational illustration; consult the publisher and applicable standard for the exact graphic"}],"references":[{"sourceId":"pub-symbol-connectors","relevance":"Public IEC-oriented preview listing the common pin number plug and jack form."},{"sourceId":"ansi-autodesk-0b14feab-110a-4dd3-884e-0a2f8f9e76f7","relevance":"Public IEEE-oriented preview of the same connector family."}],"related":["plug-and-socket-connector-pair","iec-additional-connector-pin","iec-connector-retaining-wire-identity"],"artwork":"s28-iec-plug-jack-common-pin-number","publishedOn":"2026-10-28","updatedOn":"2026-10-28","provenance":"independent-public-research","symbolVariant":{"convention":"IEC","form":"Plug/Jack with common pin number","reference":"Autodesk IEC-60617 Symbol Preview: Connectors - No Wirenumber Changes; vendor family reference, not certified IEC geometry.","counterpart":"plug-and-socket-connector-pair"},"plainEnglish":{"title":"What does Plug and jack with common pin number mean?","introduction":"Some connector symbols carry a single pin number shared by both mating halves, because the pin and socket on a given contact position carry the same number in the connector insert. This keeps schematics uncluttered and matches how most connector manufacturers number inserts.","example":"The common number assumes both halves use matching numbering. Where a harness connector is mated to a board header with different numbering, separate pin numbers are needed. This is a publisher drafting variant, so the underlying connection meaning is the same as an ordinary plug and socket pair.","drawings":"Confirm both halves use the same pin numbering scheme. Read the pin number once for both halves. The common pin number form carries one number for both halves; the standard pair can carry different numbers per half.","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":"Schematic","meaning":"A drawing showing function and connections rather than physical appearance."}],"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":"AutoCAD Electrical: Connectors","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-7175D293-9F4C-485C-8E2D-DE684820D53B.htm"},{"label":"Autodesk IEEE Symbol Preview — Connectors - No Wirenumber Changes","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-0B14FEAB-110A-4DD3-884E-0A2F8F9E76F7.htm"}],"detail":"A plug and jack pair carrying one shared pin number for both halves rather than separate numbers on each half. The common pin number form carries one number for both halves; the standard pair can carry different numbers per half.","profileId":"reviewed-symbol-20261028"},"url":"https://eloragrid.ai/symbols/iec-plug-jack-common-pin-number","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/iec-plug-jack-common-pin-number.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pub-symbol-connectors","title":"AutoCAD Electrical: Connectors","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-7175D293-9F4C-485C-8E2D-DE684820D53B.htm","type":"cad-reference","scope":"Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Public IEC-oriented preview listing the common pin number plug and jack form."},{"id":"ansi-autodesk-0b14feab-110a-4dd3-884e-0a2f8f9e76f7","title":"Autodesk IEEE Symbol Preview — Connectors - No Wirenumber Changes","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-0B14FEAB-110A-4DD3-884E-0A2F8F9E76F7.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 preview of the same connector family."}]}