# Media converter symbol

Canonical URL: https://eloragrid.ai/symbols/iec-media-converter-symbol
Publisher: Elora Grid
Updated: 2026-10-28
Lookup label: MC
Drawing use: Schematic
Reference families: IEC

Network symbol for a media converter linking copper Ethernet to optical fibre, drawn as a box with electrical and optical ports.

## In plain English

### What does Media converter mean?

A media converter changes the physical medium of an Ethernet link from copper twisted pair to optical fibre, without routing or switching. Diagrams draw a box with a copper port on one side and a fibre port, often marked with a light arrow, on the other.

### A simple example

On electrical and control drawings, media converters appear where a device with copper Ethernet must reach a remote location or cross an area with earth potential differences. Their power supply and mounting in the panel are shown on the schematic. The symbol does not show the fibre type or wavelength. The fibre port must match the cable.

### What the drawings help you do

Identify which side is fibre. Check power supply. A network switch forwards traffic between many ports; a media converter only changes the medium on one link.

### This particular reference

Network symbol for a media converter linking copper Ethernet to optical fibre, drawn as a box with electrical and optical ports. A network switch forwards traffic between many ports; a media converter only changes the medium on one link.

### Terms

- 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.

- [Industrial Ethernet to fibre media converters](https://www.westermo.com/products/converters/ethernet-media-converters)
- [Autodesk IEC-60617 preview: Propagation and signal-flow qualifiers](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-1C0C7AE2-F703-4283-BCB1-3E0B30882715.htm)


## What it represents

A media converter changes the physical medium of an Ethernet link from copper twisted pair to optical fibre, without routing or switching. Diagrams draw a box with a copper port on one side and a fibre port, often marked with a light arrow, on the other.
On electrical and control drawings, media converters appear where a device with copper Ethernet must reach a remote location or cross an area with earth potential differences. Their power supply and mounting in the panel are shown on the schematic. The symbol does not show the fibre type or wavelength. The fibre port must match the cable.

## How to read it

- Identify which side is fibre.
- Check power supply.

## Information to show or reference

- State fibre type and connector.
- Show power supply.
- Label link ends.

## Important distinction

A network switch forwards traffic between many ports; a media converter only changes the medium on one link.

## Facts

- Function: Medium conversion only
- Ports: One copper, one fibre
- Preview: Independent educational concept; plan symbols for this device vary between legends, so read the project key

## Public references

- [Industrial Ethernet to fibre media converters](https://www.westermo.com/products/converters/ethernet-media-converters) — Westermo. Public product family page describing copper Ethernet to fibre conversion.
- [Autodesk IEC-60617 preview: Propagation and signal-flow qualifiers](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-1C0C7AE2-F703-4283-BCB1-3E0B30882715.htm) — Autodesk. Public IEC-oriented propagation and signal-flow qualifiers used on communication symbols.

## 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.