Getting started

Hardware overview

MAPIO hardware is based on multiple electronic boards to facilitate repair. It is based on a Raspberry Pi Compute Module 4, adding integrated circuits and connectors to enhance features.

PCB1 is mandatory, and provide the following functions :

  • Socket for Raspberry Pi Compute Module 4 (eMMC variants only)

  • Slot for an M.2 SSD (2242 or 2280)

  • Ethernet 1Gbps

  • 1x USB-C 2.0

  • 1x USB-A 2.0

  • Internal USB-C connector for debug purposes

  • Optocoupled UART input for TIC (Linky)

  • RS485 10 Mbps transceiver

  • 250V 10A relay

  • 5V Fan connector

  • Jumpers for power supply selection

  • Jumpers for Wifi/BLE/BOOT configuration

PCB2 is optional, but delivers the full potential of MAPIO :

  • A 18650 backup battery, providing several hours of autonomy in case of power loss

  • 3 slots for (optional) RF modules

  • 2.13” black and white ePaper

  • 3 RGB LEDs

  • 3 buttons

  • 3V3 DC-DC converter

Mechanical overview

MAPIO has been designed to be installed on DIN rail. The case is a customized version of Bud DMB-4773.

You need to have at least 6 free spaces (108 mm) on your switchboard for MAPIO, plus space for AC-DC power supply. 9 free spaces are recommended.

Electrical specifications and installation

MAPIO has to be powered by a 5V DC, 2A power supply. The power input connector is on the upper left side of the casing.

You need to use the provided Wurth 691361100002 connector.


Connect the output of the AC-DC converter (for example, Mean Well HDR-30-5) to J1001 connector.

Note : the use of a 2A circuit breaker upstream of the AC-DC converter is highly recommended.

Jumper configurations