Instructions on how to use a Minitel as a Linux terminal.

Felix Pojtinger


1.1 Introduction

1.1.1 Contributing

Found an error or have a suggestion? Please open an issue on GitHub (

QR-Code to the source code on GitHub

1.1.2 License

This document and included source code is Free Culture/Free Software.

Badge of the AGPL-3.0 license

Minitel (c) 2021 Felix Pojtinger

SPDX-License-Identifier: AGPL-3.0

1.2 Compatible Minitels

Your Minitel needs to have a Funz or Fnct key and the DIN-5 port at the back side. This includes the following Minitels:

1.3 Minitel DIN-5 to USB/RS232/Serial Adapter

To build the adapter to connect the Minitel to a PC, you need the following (cheap) components:

You will need to check the pinout of the DIN-5 plug/cable; in my case, the following mapping is present:

DIN-5 port mapping

Connect like so:

Schematic and breadboard layout

In my case, the breadboard prototype ended up looking like this: