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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
  • Physical properties:
    • Width DIN modules: 4
  • Electrical data:
    • Current consumption range: 100-500 mA
  • Technical data:
    • Protocol: CAN bus
    • Mounting type: DIN rail
  • Environmental data:
    • Operating temperature: 0-40 °C
  • IT connections:
    • Network interface: LAN
    • USB type: USB 2.0
    • Smart device compatibility: Android, iOS
    • Network port type: Ethernet 10/100
    • SD card port: Yes
    • Interface type: USB
  • Power supply:
    • Backup battery operating time: 2 h
    • Input voltage rating VDC: 12-18 V
  • Included:
    • LED indicators: Yes
  • Product basic info:
    • Colour: White
    • Depth: 58 mm
    • Height: 90 mm
    • Weight: 128 g
    • Width: 71 mm
    • Material: PC (polycarbonate)


PDF-File Short manual


HTML-File Signum changelog
EXE-File VelbusLink 10.8.5 (EN/NL/FR) - Latest version
Free Windows program to configure and program a Velbus installation (latest version - 09/22/2022)
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 10.6.5 (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.