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USB to CAN/CAN FD Converter DCI-CAN2

Connection of a CAN/CAN FD Network to the Host PC

The DCI-CAN2 (dSPACE Calibration Interface – CAN2) is an interface, that makes it possible to establish a USB-based connection from your host PC to the CAN/CAN FD data streams in the vehicle.

With the DCI-CAN2 you can access the data stream on CAN and CAN FD networks. The interface transfers messages between the CAN/CAN FD network and the host PC via the universal serial bus (USB). The DCI-CAN2 is powered directly via USB, so no additional components are necessary to connect to the CAN bus.

Key Benefits

Compared with the classic CAN protocol, CAN FD (FD = flexible data rate) comes with increased data rates and payload data length. With CAN FD, a multiplied data rate allows an average data transmission speed of several Mbit/s and payload lengths of up to 64 bytes (compared to 8 bytes in a classic CAN).

Parameter Specification
  • NXP CAN transceiver TJA1044GT
  • CAN FD 1.0 (compatible with CAN 2.0 A/B)
  • Transmission standards: CAN/CAN FD (ISO 11898-1) & CAN FD (NON-ISO v1.0)
  • Arbitration bitrate: 25 kbit/s ... 1 Mbit/s; CAN-FD data field: 25 kbit/s ... 8 Mbit/s1)
Host interface
  • USB 2.0 (high speed)
Software configuration
  • Configuration of the DCI-CAN2 from host PC with ControlDesk or with dSPACE CAN API / dSPACE CAN API 2.0
Physical characteristics Enclosure
  • Robust aluminum box
  • 9-pin, male Sub-D connector for connection to CAN (according to CiA-DS 102-1)
  • A-type USB connector with 1.5 m (59.0 in) cable for connection to the host PC
  Status LED
  • Green (lit): connection to operating system driver is established
  • Green (blinking slowly): software application is connected to the interface
  • Green (blinking quickly): CAN data is transmitted
  • Red (blinking): error during CAN data transmission
  • Orange (blinking quickly): identification of an interface when multiple interfaces are connected
  Physical size
  • 16 x 55 x 84 mm (0.63 x 2.16 x 3.30 in)
  Approx. weight
  • 68 g (0.15 lb.)
  Temperature range
  • -40 ... 85 °C (-40 ... 185 °F) ambient temperature
  • -40 ... 100 °C (-40 ... 212 °F) storage temperature
  IP protection class
  • IP 20
Electromagnetic compatibility
  • EN 55024: 2011-09
  • EN 55022: 2011-12
  • EC directive 2004/108/EG
Electrical characteristics Power supply
  • Power supply via USB
  • +5 V DC, max. 170 mA
  Galvanic isolation
  • Up to 500 V (connector maximum)

1) The possible transmission rate depends on the environment (cable harness, topology and interferences). 


Application Areas Key Features
The API allows custom applications to be built in Python (API available as a Python module) or Microsoft® Visual C++ 6.0 (API available as a functional WIN32 DLL). For supported operating systems (API, driver) see
  • Supports multiapplication: several applications can connect to the same CAN channel
  • Supports multiclient: the same application can connect to one or more CAN channels
  • 2 virtual CAN channels for testing your application without using the hardware
  • Up to 16 CAN channels accessible
  • Provided along with the DCI-CAN2 and dSPACE Release