Designed specifically for industrial use, the PRO4 DCU M-Bus 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).

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

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, Digital Inputs or M-Bus and send it to a central server through the encrypted 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 optional).

**Quick Specifications — M2M PRO4 DCU MBUS**
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 / LTE Cat.M/NB / 450 MHz; 2G fallback / 3G/2G fallback — Dual SIM option
Protocols	TCP, M-Bus, Modbus TCP/RTU, DHCP, DynDNS, SFTP, NTP, SNTP, HTTPS, SSHv2, IPv4, IPv6, IP Route, IP passthrough, LwM2M, MQTT
Interfaces, Physical Connectors	4 Ethernet, M-Bus, RS485, Digital Inputs (DI), micro-USB, microSD
Power & Environment	AC or DC 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

The PRO4 DCU M-Bus has a modular design, meaning that there are options for expansions. By default, it has 2 SIM card slots, 4 Ethernet ports, RS485 interface, M-Bus interface, 2 Digital Inputs, a microSD card slot, and a micro-USB port for configuration and OTG functions.

The open-source, Linux-based operating system OpenWrt^® (optionally Debian) allows users to develop and run their own applications on the platform. It comes in an IP51 housing, supports DIN-rail, and the ports can be protected under sealable terminal cover.

Supports the most important industrial and network protocols like TCP/IP, Modbus TCP/RTU, Modbus Gateway, M-Bus, MQTT, LwM2M etc. We also offer customization (protocols, interfaces, modules etc.) for large projects.

The M2M PRO4 M-Bus uses standard M-Bus communication and it has full remote access, monitoring and maintenance features.

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

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.

m2m device manager

Our remote device management solution offers state-of-the-art management functionalities including rapid device onboarding with bulk provisioning, easy administration, in-depth visibility of device status, its performance metrics and security issues, logical groupings of devices into hierarchical structures for mass software and firmware updates.

Microsoft Windows-based application hosted on-premise for high security and continuous remote management of IoT devices (routers, modems etc.). Ideal for enterprise or government deployments with strict ICT policies.

Main features

Power: 230VAC
Onboard cellular module (LTE Cat.4 /3G/2G)
2 mini-SIM card slots (2FF)
4 Ethernet ports (RJ45, LAN, 10/100Mbit)
RS485 port (terminal block)
M-Bus (5-50 slaves)
2 x Digital Input (terminal block)
micro-SD card slot
micro-USB configuration port
Supercapacitor (against small power outages)

Software / Operation

Transparent & secure wireless data transmission
Modbus TCP/IP Gateway (Scada connection)
M-Bus communication
Data sending with TCP/IP, MQTT or LwM2M protocol
Linux-based OpenWrt^® operating system, Web GUI
Remote software updates and configuration
Safety, networking and management protocols
Sealable, DIN-rail mountable IP51 enclosure

Application & Use Cases

Industries

Design and outfit

IP51 enclosure, fit to DIN-rail
Industrial standard interfaces are presented, the ports can be protected by the sealable terminal cover

Compatibility

M-Bus meters and sensors (for 5 to 50 slave devices)
Scada and metering systems

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