PLUG SOCKET
Plug and socket connector pair
A plug/socket pair represents a detachable electrical connection with two mating sides.
Schematic
IEC · X
Plug and jack with common pin number
A plug and jack pair carrying one shared pin number for both halves rather than separate numbers on each half.
In plain English
What does Plug and jack with common pin number mean?
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.
A simple 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.
What the drawings help you do
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.
This particular reference
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.
- Normally open / normally closed
- The contact state in the normal condition defined for the drawing.
- Terminal
- An identified point where a conductor connects.
- Schematic
- A drawing showing function and connections rather than physical appearance.
Read the source: AutoCAD Electrical: Connectors · Autodesk IEEE Symbol Preview — Connectors - No Wirenumber Changes
IEC · Plug/Jack with common pin number
Autodesk IEC-60617 Symbol Preview: Connectors - No Wirenumber Changes; vendor family reference, not certified IEC geometry.
Shown as an independently authored educational illustration. Use the cited publication and drawing legend to verify the required drafting form.
Schematic · X
What it represents
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.
How to read it
- Confirm both halves use the same pin numbering scheme.
- Read the pin number once for both halves.
Information to show or reference
- Use common numbering only where the inserts match.
- Keep the connector tag on the symbol.
- Switch to separate numbers for mismatched pairs.
A distinction that matters
The common pin number form carries one number for both halves; the standard pair can carry different numbers per half.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
AutoCAD Electrical: Connectors
Public IEC-oriented preview listing the common pin number plug and jack form.
Autodesk IEEE Symbol Preview — Connectors - No Wirenumber Changes
Public IEEE-oriented preview of the same connector family.
About this graphic
This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.
SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.
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