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VMBSIG-V1 - Signum iot gateway

The Velbus Signum is an IoT Gateway for the Velbus home automation system. Its main functions are:
• to control your Velbus installation using an iOS app, Android app or browser on mobile devices (smartphone, tablet...)
• periodically sync the time on your Velbus installation with an NTP server
• time and date backup (48 hours) in case of power failure
• connect VelbusLink (Velbus configuration software) directly (with a USB cable plugged into the Velbus Signum, or an IP (LAN) connection)
• secure access to your Velbus Signum and home automation system from anywhere in the world

In the near future, the following functions will also be available:
• IoT gateway to allow integration/communication with other protocols
• advanced visual configuration of your Velbus installation (and connected systems)
• manually or periodically back-up your local Velbus project/settings on the Velbus Signum

The Velbus Signum is a DIN-rail module that is powered by and connected directly to the Velbus bus.


  • Only a qualified professional may carry out the installation in conformity with in force legislation and standards.

  • protocol manuals for developers

    available for download at https://github.com/velbus

  • carrier board with Computer-on-Module (COM) (RPI CM3+/16GB)
  • RJ45 Ethernet port (10/100 Mbps)
  • onboard USB A 2.0 host port (500 mA)
  • onboard USB B 2.0 slave galvanic insulated Velbus configuration port
  • a USB micro 2.0 console port
  • onboard micro SD card slot for flash storage
  • master clock for Velbus system with 48-hour time and date backup in case of power outage
  • onboard CAN terminator switch
  • PS (Power Supply), RX (CAN Receive), TX (CAN Transmit), RUN and ACT status LEDs
  • DIN Rail mount and Velbus connector
  • power supply: 15 ± 3 VDC
  • power consumption: 100 mA idle, 500 mA max
  • dimensions (l x h x d): 71 mm x 90 mm x 58 mm
  • DIN dimensions: 4 modules
  • weight: 128 g
  • ambient temperature: 0°C - 40°C
  • minimal operation (charging) time need for time and date backup to function correctly: 2 h


PDF-File Short manual


HTML-File Signum changelog
EXE-File VelbusLink 10.7.0 (EN/NL/FR) - Latest version (01/18/2022)
Free Windows program to configure and program a Velbus installation (latest version - 01/18/2022)
PDF-File Velbus Installation Guide, Part 1: Hardware and Cabling
Everything you need to know about the Velbus hardware
PDF-File Velbus Installation Guide, Part 2: Configuration
How to configure Velbus modules using the free software VelbusLink
PDF-File Velbus Troubleshooting Guide
Step-by-step guide for solving Velbus problems.
EXE-File VelbusLink 10.5.1 (EN/NL/FR) - Previous version
Previous version of VelbusLink
XLSX-File Velbus consumption calculator
Spreadsheet to calculate the number of power supplies you need in a Velbus installation.

Info Sheets

PDF-File Infosheet
HTML-File Velbus actions by module (click on an action to see a description)
List of actions per module
Q. How can I do a factory reset of my Signum?
A. Starting from release 1.7.0, there is a factory reset button in the Configuration pages of the Signum application.
Another method is to surf to [Signum IP]/health/rescue in a browser, and follow the instructions.