DinBox RTU M4

DinBox RTU M4

The DinBox RTU M4 is a cost-effective RTU with built-in wide range AC power supply. The power supply comes with a supercap back-up, in order to ensure the required energy to communicate with the SCADA system, even after a mains power supply disconnect. Direct WAN communication is possible thanks to the built-in Sierra Wireless communication module. Everything is managed by a powerful Cortex M4 microcontroller. Finally, the RTU is built into a DIN rail mountable housing.
The DinBox RTU M4 uses IEC 60870-5-104 to communicate as a slave with the SCADA system (master). Other protocols can be implemented.
The DinBox has 8 active digital inputs, which enable sending events when a change has been detected. Furthermore, it has 2 digital outputs which can be controlled via SCADA commands, and 2 analogue inputs to monitor.
Thanks to the modbus client implementation and the Modbus-to-IEC104 mapping the DinBox RTU M4 can be used as a gateway to connect other Modbus slave IEDs.
Authentication, integrity and security are provided per application or service running on the RTU by protecting the transport layer of the protocol stack with TLS (Transport Layer Security).


  • GPRS/LTECat.M1 Communication
  • IEC 60870-5-104/Modbus mapping
  • MQTT/Modbus mapping
  • Backend Services (Q1 2021): FoTa / Commissioning / Security / Remote parametrization...
  • I/O
  • Ethernet Routing
  • TLS Security
  • VPN IPsec ike V1
  • Supercap ‘Last gasp’
  • Applications:
    Substation IP communication with SCADA systems or central dispatch
    IEC-60870-5-104 protocol between substation and control station
    SCADA installations in industries such as power and distribution, water and gas applications, oil and gas production
    Distributed Control Systems (DCS), PLC…
    Alarm management through SMS with ACK


  • Housing:
    Type: Phoenix Dinrail enclosure
    Housing material: Reinforced polyamide fiber
    Housing type: DINrail housing side element, two pieces necessary to close base element, 1,5mm thick.
    DINrail snap slot for easy DINrail mounting
    Color: green
    Dimensions housing: : 172 mm x 35 mm x 135 mm
    Ambient temperature (operation) -40°C +105°C
    Inflammability class acc. to UL 94: HB
  • Power Supply:
    isolated input wide range 85 - 264Vac
    direct 9 - 25Vdc (Optional)
    Power backup via SuperCap capacitor
  • Interfaces & Connectors:
    Local communication (console port) with DB RTU M4 for configuration using RJ-45 to DB9 serial cable. (Terminal software program (e.g. Hyperterminal) must be used to communicate with the micro-RTU through RS-232)
    Ethernet port for config (webserver), LAN or WAN port
    RS-232 communication port
    RS-485 communication port
    Slot for MMC SD card
    FME antenna connector
  • Inputs & Outputs:
    8 active galvanic isolated digital input channels - active 24Vdc/dc
    2 galvanic isolated digital output channels - max. 100 mA load non inductive
    2 analog non-isolated input channels - 0-5 V - 12 bit single ended ADC
  • Engine:
    Built-in Sierra Wireless AirPrime (HL series) communication modules:
    Integrated GPRS - EDGE
    3G or LTE (cat 4) module or other optional through ‘snap-in’ system if supported by Sierra Wireless.
    Cortex M(4) Processor
    Mini SIM-card reader
  • Reset:
    Separate long term watchdog processor
    Configurable resetting
  • Backend services (Q1 2019):
    FoTa (Firmware over the Air)
    TLS security
    Local configuration: HTML, RS-232
    Remote configuration: Telnet, HTML
  • Communication Protocols:
    IEC 60870-5-104 (slave function)
    Modbus RTU (serial)
    Modbus TCP (Ethernet)
    NMKD-3085 ASCII (ABB)
    TCP/IP Protocols: PPP / ICMP / DNS / SMTP / POP3 / FTP / TCP socket/HTTP /HTTPS…
  • Security:
    In a 'integrated' RTU solution, as in the case of the Dinbox RTU M4, the device has direct access to the GSM network. Security, integrity and authentication are provided per application or service running on the device by protecting on the transport layer of the protocol stack. The Dinbox RTU M4 provides security by having a TLS library on board. All applications of which the traffic is routed over public network infrastructure uses TLS. The PKI key management strategy is to be defined on a customer basis.  Legacy applications in the DSO's back end side of the network, for example SCADA systems which implement a IEC104 master without TLS encryption, can be supported by installing a TLS Proxy service. This is an application which service runs in the trusted network. It serves as an enpdoint towards the RTU, and proxies the connection to the legacy application.
  • Certification: CE

Additional Info

Log in to reply

arrow_upward Back to Top