IoT Router / Gateway PRO4 for Industrial Use

Industrial cellular router, gateway and data concentrator developed specifically for IoT and IIoT applications

Wireless router
Wireless router
4G LTE / LTE 450
4G LTE / LTE 450
4x Ethernet
4x Ethernet
RS232/RS485
RS485 / 2 DI
MBus connection
M-Bus meters
DIN mount
DIN mount

 

Last Updated on 2026-05-11

Designed specifically for industrial use, the PRO4 router offers reliable, secure high-speed wireless connectivity and remote access. It enables the integration of various industrial applications such as smart metering, industrial automation, substation management or the integration of Distributed Energy Resources (DER).

Our LTE router comes with all the interfaces, protocols and management functions desirable in the world of industrial automation and smart grids. This is the preferred choice for mission-critical cellular communications of many large energy companies and IoT system integrators.

The router has 4 Ethernet ports, RS485 port, 2 Digital Inputs and an M-Bus expansion option.

Quick Specifications — M2M ROUTER PRO4
Device type Industrial cellular router and data concentrator
Primary use case Smart metering (AMI/AMR), Smart Grid, Industrial Automation, Building Automation, Substation Management, Data Acquiring
Cellular & RF Access Technology LTE Cat.1 / 2G, 2pcs SIM slot
Protocols TCP, Modbus TCP/RTU, DHCP, DynDNS, SFTP, NTP, SNTP, HTTPS, SSHv2, IPv4, IPv6, IP Route, IP passthrough, LwM2M, MQTT
Interfaces, Physical Connectors 4 Ethernet, RS485, Digital Inputs (DI), micro-USB, microSD
Power, Environment & Protecion AC  power; between -40 Celsius and +75 Celsius degree, IP51 protection
Fastening, Mount Built-in 35mm DIN-Rail adapter
Approvals & Certifications CE, RoHS, ReD DA
Firmware OpenWRT operation system
Configuration LuCi web GUI interface (via local or TCP), UCI
Device Management Device Manager software (Remote provisioning, firmware update, bulk config)
Security TR-069, IPSec, OpenVPN, sealable port cover

 

Cellular routers are highly effective for the implementation of reliable and extremely secure communications networks for remote substation SCADA, distribution automation, and metering applications. The routers collect data via Ethernet, RS485 or I/O and send it to a central server through the encrypted 4G LTE cellular networks. For maximum security, OpenVPN, IPSec services and firewall are also available. For higher levels of reliability, our cellular routers may be equipped with two SIM cards (by option).

It comes in a IP51 housing, supports DIN-rail, and the ports can be protected under sealable terminal cover. It supports the most important industrial and network protocols like TCP/IP, Modbus TCP, Modbus RTU, Modbus Gateway, etc. Thanks to our Automatic Modbus Data Acquirer System this router can also be used as a data concentrator.

The open-source, Linux-based operating system OpenWrt® (optionally Debian) allows users to develop and run their own applications on the platform.

The device has full remote access, monitoring and maintenance features by Device Manager® application. a microSD card slot, and a micro-USB port for configuration and OTG functions.

We also offer customization (protocols, interfaces, modules etc.) for our clients. More than 100.000 units have been sold around the world.

 

Device Manager

On-demand OTA firmware and software upgrades may be remotely and securely uploaded to the cellular router from any point within the user’s network. The Windows-based Device Manager® software allows faster deployment and guarantees the secure and proper functioning of the routers. State-of-the-art management functionalities including rapid device onboarding with bulk provisioning, easy administration, in-depth visibility of device status and, its performance metrics and security issues, logical groupings of devices into hierarchical structures for mass software and firmware updates.

 

 

Thanks to our Automatic Modbus Data Acquirer System (application developed for standard Modbus Modbus data collection) this router can also be used as a data concentrator.

The 4G LTE router is currently our most popular product!

 

Main features

  • LTE Cat.1 / 2G cellular module
  • Interfaces
    • 4 Ethernet ports (RJ45, LAN, 10/100Mbit)
    • RS485 port (terminal block)
    • 2 digital inputs (terminal block)
    • M-Bus input (up to 32 slave devices) – order option
    • AC power input (terminal block)
  • microSD card slot
  • micro-USB configuration port
  • Supercapacitor (against small power outages)
  • Automatic Data Acquirer System: Modbus TCP/IP Gateway (Scada connection) data sending by LwM2M, MQTT protocols
  • OpenWrt operation system, Web GUI – remote firmware updates, configuration
  • Sealable, DIN-rail mountable IP51 enclosure
  • Device Manager® (remote FW updates / configuration) – order option

 

Application & Use Cases

 

Industries

 

Solution

Design and outfit

  • Plastic enclosure, fit to DIN-rail
  • Industrial standard interfaces are presented, the ports can be protected by the sealable terminal cover
  • Expansion options (see table)

 

Compatibility

  • Scada and metering systems
  • Modbus meters and measurement systems
  • Metering systems (electricity, water, gas)

 

Operation

  • OpenWRT® system, web interface, Linux CLI, UCI
  • Security: Firewall, diagnostic, monitoring of operation parameters, IEE 802.1x encryption, AES128/AES256 encryption, super-capacitor component against short power outages, remote reboot and maintainance, remote voice call, remote control

 

Protocols

  • Protocols: DHCP, DynDNS, IP route, NAT, IPv4/IPv6, (S)FTP, (S)NTP, HTTP(S), SSHv2, IP passthrough, IPSec, OpenVPN, Modbus Gateway, LwM2M, MQTT
  • Management: SNMPv3 protocol, Device Manager® software (optional management/configuration/updates)
  • Scada Protocols: Modbus TCP / Modbus RTU

 

Accessories (Order options)

  • 4G LTE antenna
  • Device Manager® software

 

Technical data

m2m PRO4 router

Product Datasheet

Updated: 2026-03-23


Quick Guide

Updated: 2022-11-24

Installation Guide

Updated: 2022-11-24

User Manual (OpenWrt)

Updated: 2022-11-24

UCI Command Line Reference

Updated: 2020-11-13

EasyCwmp Command Line Reference

Updated: 2020-11-13

License Notice – GNU General Public License Notice

Updated: 2020-11-13


Firmware (2021-11-25)

Updated: 2021-11-25

IMPORTANT! Backup your settings before performing the firmware update. Read the User Manual for more details.

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