DIN Rail Fieldbus and Wireless Module for Transportation

Manufacturer: duagon MEN

The ME4 is a modular extension for embedded applications in transportation, e.g., in trains or wayside. The module adds wireless connectivity and Fieldbus and audio functionality to the system CPU. Main applications of the module include predictive maintenance, IoT gateway, diagnostics server, smart vehicle, passenger information and ticketing systems.

Wireless Connectivity

The ME4 comes with one M.2 slot for high-speed LTE modems (LTE Advanced or LTE) providing two front-accessible micro-SIM card slots. For GPS/GLONASS functions, the box has an onboard GNSS receiver which can be connected via antenna connector.

Fieldbus and Audio Functionality

The ME4 is equipped with one PCI Express Mini Card slot which is prepared for adding an MVB, CAN bus or audio module. The functions can be made available on two D-Sub connectors at the front panel.

Modular System for Easy Configuration

Due to MEN's modular concept, the ME4 offers flexibility in built-to-order configurations. Via its extension connectors, the box can be easily combined with pre-fabricated CPU modules or other extension modules, for example a PSU or removable storage shuttles, providing additional features and short delivery times.

In the modular system, the data transfer between the modules as well as the power distribution between the individual components takes place via the extension connectors standardized by MEN.

Flexible System Installation

Various mounting options facilitate the integration of the box into an existing environment. The standard 35 mm DIN Rail mounting offers space-saving mounting of all system modules on a single rail. Wall mounting and mounting in a 19" rack using adaption brackets are an option.

The aluminium housing with cooling fins allows fanless operation. ME4 has no moving parts, making it maintenance-free.

Rolling Stock Qualified and Long-Term Availability

The wireless and Fieldbus module is qualified for rolling stock and wayside applications. Long term availability until 2027 minimizes life-cycle management by making the ME4 available at least for this period of time.


InterfacesThis product includes interface options
• Different wireless functions depending on assembled wireless interface cards
• GNSS antenna connector: 1 × SMA receptacle (X3)
M.2 Card
• 1 × M.2 Card slot
• M.2 3042 (LTE) socket 2 Key B; USB 2.0, USB 3.0
PCI Express Mini Card
• 1 × PCI Express Mini Card slot
• PCIe Full-Mini; PCIe x1, USB 2.0
SIM card
• 2 × micro-SIM, externally accessible
• Status: power status
• User configurable: 3 ×
• Antenna connector options: RP-SMA receptacle
• D-Sub options: audio, CAN bus, MVB



ElectricalPower consumption: 6 W typ.
MechanicalDimensions: (W) 38 mm, (D) 144 mm, (H) 132 mm
Weight: 500g approx.
• DIN rail
• Wall-mount
• Rack-mount in 19" cabinet
Cooling: Air cooling, natural convection, airflow 0.4 m/s
Protection rating: IP20
• Supported kernel: 4.8 or higher. For older kernels (e.g., 4.4.x), patches for the Apollo Lake platform are also available.
• Yocto BSP
• Tested with Yocto BSP (Sumo 2.5, Linux kernel 4.15), Lubuntu 18.04 X LTS
• Windows 10 IoT Enterprise 64-bit
TemperatureOperating temperature: -40 °C to +70 °C, +85 °C for 10 min (EN 50155:2017, class OT4, ST1)
Rapid temperature variations: EN 50155:2017, class H1, no requirements
Storage temperature: -40 °C (EN 50155:2017) to +85 °C (EN 60068-2-2, Bb)
Humidity+55°C and +25°C, 100 % max. (EN 50155:2017)
Vibration10 min @ 2.02 m/s² and 5 h @ 11.44 m/s² (EN 61373:2010/AC:2017-09, vehicle body, cat. 1, class B x 2)
Shock30 ms @ 50 m/s² (EN 61373:2010/AC:2017-09, vehicle body, cat. 1, class B)
MTBF200 000 h predicted @ 40 °C according to IEC/TR 62380 (RDF 2000)
Safety/CertificationElectrical safety
• EN 50155:2017
• EN 50153:2014 + A1:2017
• EN 50124-1:2017
• EN ISO 13732-1:2008
Fire protection:
• EN 45545-2:2013 + A1:2015, HL3
EMCRolling Stock:
• EN 50121-3-2:2016
• Regelung Nr. EMV 06 :2014-07-29, Anhang E: Messung an Geräten
Warranty2 Years


Ordering Details

Modular extension, wireless communication, GNSS, M.2 Slot for LTE function, PCI Express Mini Card Slot for MVB, CAN bus or audio function, -40 °C to +70 °C (+85 °C)
Sierra Wireless EM7455, M.2 LTE Advanced Cat 6 modem, -40 °C to +85 °C, SKU1103582

USB HID to analog audio PCI Express Mini Card, 1 stereo input and 1 stereo output, conformal coated
Recab UK
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