Multi-purpose I/O hub

Like all good standards, the Read protocol of the digital tachograph is full of exceptions. Each tacho has, in fact, its own singularity, and this is why we recommend the H4 when implementing a fleet solution that integrates tacho data reporting.

The H4 is a small but extremely versatile I/O Hub design to extend the features of the C4 range of devices at and after their rollout. It is fully programmable with integrated ARM9 + Linux/Java dedicated to I/O processing and, of course, customisable through the Morpheus3 SDK.


Best suited for services such as

Perfect for markets such as

Tachograph Fuel Consumption Monitoring Sensors management
AmbulanceAmbulance BusBus TruckTruck DeliveryDelivery

Full Technical Specifications


Processor ARM 9 – 208 MHz
Ram 32 Mbytes
Flash 32 Mbytes


RS232 4
USB host/device 2
1-wire (ibutton + many peripherals) 1, supports up to 10 peripherals


Analogue inputs 4
Digital inputs 6 (4 shared with analogue inputs)
Digital outputs 2

Power Supply

Power supply directly from vehicle voltage 8 to 30 V
Power consumption (measured on 13.7V) Shutdown : 2.7 µARunning mode (average) : 80 mA


Operating temperature -20/+60°C
Dimensions (mm) 82 x 55 x 32
Morpheus 3 OSThe H4 runs the only Open Telematics Operating System: Morpheus3 OS
Morpheus 3 OSTune the H4 directly using 3000+ APIs on Morpheus3 SDK
Morpheus 3 OSConnect your service, database or proxy on a scalable server with CloudConnect
Morpheus 3 OSAccess a catalogue of services for the H4 with our Application MarketPlace
For more info, contact us on – info@mobile-devices.comor call +33 1 42 11 93 25