# Coaxial plug and socket

Canonical URL: https://eloragrid.ai/symbols/iec-coaxial-plug-and-socket
Publisher: Elora Grid
Updated: 2026-10-28
Lookup label: X
Drawing use: Schematic
Reference families: IEC

## Symbol convention

Convention: IEC
Form: Coaxial plug and socket
Independent IEC-context illustration; not certified IEC geometry.
Related representation: [Plug and socket connector pair](https://eloragrid.ai/symbols/plug-and-socket-connector-pair)

A plug and socket pair with concentric inner and outer contacts, used to connect coaxial cables to equipment.

## In plain English

### What does Coaxial plug and socket mean?

The coaxial plug and socket shows a connector that mates both the centre conductor and the outer conductor of a coaxial cable. In power and control systems it appears on GPS antenna inputs for time synchronisation, partial-discharge and RF sensors, and video or radio links.

### A simple example

The symbol does not tell you the connector series, impedance or gender convention, which vary between product families. A 50 ohm connector mated to a 75 ohm cable will work poorly, so the connector type should be stated. Outer conductor earthing through the connector body is often implicit and should be checked.

### What the drawings help you do

Read connector series and impedance in the annotation. Check how the outer conductor is earthed at the equipment. A coaxial plug and socket mates concentric contacts; an ordinary plug and socket pair mates single pins.

### This particular reference

A plug and socket pair with concentric inner and outer contacts, used to connect coaxial cables to equipment. A coaxial plug and socket mates concentric contacts; an ordinary plug and socket pair mates single pins.

### Terms

- Terminal: An identified point where a conductor connects.
- Signal: Electrical information passed between devices, rather than necessarily the main power supply.
- Schematic: A drawing showing function and connections rather than physical appearance.

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.

- [AutoCAD Electrical: Connectors](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-7175D293-9F4C-485C-8E2D-DE684820D53B.htm)
- [IEC-60617 symbol preview directory](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-7871E6EF-24D5-467E-9B74-321FEDC9DFDA.htm)


## What it represents

The coaxial plug and socket shows a connector that mates both the centre conductor and the outer conductor of a coaxial cable. In power and control systems it appears on GPS antenna inputs for time synchronisation, partial-discharge and RF sensors, and video or radio links.
The symbol does not tell you the connector series, impedance or gender convention, which vary between product families. A 50 ohm connector mated to a 75 ohm cable will work poorly, so the connector type should be stated. Outer conductor earthing through the connector body is often implicit and should be checked.

## How to read it

- Read connector series and impedance in the annotation.
- Check how the outer conductor is earthed at the equipment.

## Information to show or reference

- Name the connector series.
- Match impedance to the cable.
- Show outer conductor earthing where it matters.

## Important distinction

A coaxial plug and socket mates concentric contacts; an ordinary plug and socket pair mates single pins.

## Facts

- Graphic cue: Pin and socket with a concentric outer contact outline
- Must annotate: Connector series and impedance
- Preview: Original educational illustration; consult the publisher and applicable standard for the exact graphic

## Public references

- [AutoCAD Electrical: Connectors](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-7175D293-9F4C-485C-8E2D-DE684820D53B.htm) — Autodesk. Public IEC-oriented preview of plug and jack connector forms.
- [IEC-60617 symbol preview directory](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-7871E6EF-24D5-467E-9B74-321FEDC9DFDA.htm) — Autodesk. Public directory of IEC-oriented symbol families.

## 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.