# ANSI/IEEE coaxial connector symbol

Canonical URL: https://eloragrid.ai/symbols/ansi-coaxial-connector
Publisher: Elora Grid
Updated: 2026-10-28
Lookup label: J
Drawing use: Schematic
Reference families: IEEE / ANSI

## Symbol convention

Convention: IEEE / ANSI
Form: Coaxial connector form
Independent illustration in IEEE drafting context; no equivalence of every detailed standard graphic is asserted.

IEEE-oriented coaxial connector symbol showing mating centre and outer contacts for a coaxial cable.

## In plain English

### What does ANSI/IEEE coaxial connector mean?

IEEE-style schematics show a coaxial connector as a centre contact within an outer shell outline, often with the shell tied to ground. US-practice drawings label coaxial jacks with J reference designators and plugs with P, following IEEE reference designation practice.

### A simple example

This is an independently drawn explanation, not the IEEE graphic. Connector series and impedance must still be given. Where the shell is grounded at the panel, the outer conductor of the cable is grounded there too, which affects ground loop analysis.

### What the drawings help you do

Read J or P designations to identify jack or plug. Check shell grounding at the panel. An ANSI coaxial connector mates concentric contacts; the ANSI plug and socket pair mates single conductors.

### This particular reference

IEEE-oriented coaxial connector symbol showing mating centre and outer contacts for a coaxial cable. An ANSI coaxial connector mates concentric contacts; the ANSI plug and socket pair mates single conductors.

### Terms

- 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.

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.

- [IEEE/ANSI 315-1975: graphic symbols for electrical and electronics diagrams](https://standards.ieee.org/ieee/315/515/)
- [Autodesk IEEE Symbol Preview — Connectors - No Wirenumber Changes](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-0B14FEAB-110A-4DD3-884E-0A2F8F9E76F7.htm)


## What it represents

IEEE-style schematics show a coaxial connector as a centre contact within an outer shell outline, often with the shell tied to ground. US-practice drawings label coaxial jacks with J reference designators and plugs with P, following IEEE reference designation practice.
This is an independently drawn explanation, not the IEEE graphic. Connector series and impedance must still be given. Where the shell is grounded at the panel, the outer conductor of the cable is grounded there too, which affects ground loop analysis.

## How to read it

- Read J or P designations to identify jack or plug.
- Check shell grounding at the panel.

## Information to show or reference

- State connector series and impedance.
- Use J and P designators consistently.
- Show shell grounding.

## Important distinction

An ANSI coaxial connector mates concentric contacts; the ANSI plug and socket pair mates single conductors.

## Facts

- Convention evidence: IEEE 315 graphic conventions for coaxial connectors (standards context only)
- Standards context: IEEE/ANSI 315-1975 covers diagram graphics; IEEE lists this edition as Inactive-Reserved.
- Preview: Original educational illustration; consult the publisher and applicable standard for the exact graphic

## Public references

- [IEEE/ANSI 315-1975: graphic symbols for electrical and electronics diagrams](https://standards.ieee.org/ieee/315/515/) — IEEE Standards Association. Graphic-symbol standards context and official status; not a source of reproduced artwork.
- [Autodesk IEEE Symbol Preview — Connectors - No Wirenumber Changes](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-0B14FEAB-110A-4DD3-884E-0A2F8F9E76F7.htm) — Autodesk. Public IEEE-oriented preview of connector forms.

## 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.