The CW-140 “Interface for CAN and LAN” is a bus interface for different automotive bus systems. The basic version provides two CAN buses and two LIN buses as well as two channels with digital-analog converters.

The integrated touchscreen display facilitates intuitive operation. Five discrete buttons make it easier to operate in particularly harsh ambient conditions. The voltage supply is designed for use in automotive environments.

It is possible to extend the software without any difficulty via the USB interface in conjunction with a standard PC. That facilitates customer-specific modifications and extensions to the software at any time.

With the aid of add-on modules it is also possible to extend the CW-140 to support additional bus systems as well as signal measurement and signal generation applications.


  • Bus interface for automotive fieldbuses
  • Supports for 2 CAN and LIN bus systems respectively
  • 2 integrated digital-analog converters
  • Operation and visualization via touchscreen
  • Extendable with add-on modules for other bus systems and measurement tasks
  • Realize customer-specific applications
  • Rugged, handy housing for use in harsh environmental conditions


Technical Data


Number: 2
Type: ISO 11898-2 (Highspeed)
CAN-protocol version 2.0 A and 2.0 B, supports SAE J1939 (29-bit identifier)
Data rate: Highspeed up to 1000 kbit/s, configurable
Termination: 120 Ω resistor, optional
Connector: LEMO EPG.0B.304


Number: 2, master-/slave mode configurable 
Type: LIN specification 2.0 or 2.1
Data rate: Up to 20 kbit/s
Connector: LEMO EPG.0B.304


Number: 1
Type: USB 2.0
Data rate: Up to 100 Mbit/s
Connector: Mini USB-socket, type B

Voltage outputs

Number: 2
Output level: 0 VDC to 10 VDC
Resolution: 12 bit
Connector: LEMO EPG.0B.303

Environmental conditions

Temperature range operation: 0 °C to +70 °C
Temperature range storage: -20 °C to +85 °C
Relative humidity: 35 % to 85 %, non-condensing
Protection class: IP 40

General Information

Housing: Rugged aluminum-housing
Dimensions: LxWxH: 143 mm x 86 mm x 25 mm
Weight: 350 g
Pushbutton: membrane keypad with 5 pushbuttons
Special features: Cable set and DIN-top-hat rail mounting on request, protection case optional available 
Scope of features:
  • programmable interface for CAN and LIN
  • any representation of configuration menus or measurement data on display
  • comfortable handling via touch display
  • free configurable function of the pushbuttons


Datasheet CW-140

Download (PDF)

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