Intelligent CAN-Bridge

Connection of two CAN networks

  • Connects two CAN networks including data buffering

  • Connection of CAN networks with different data rates

CAN interface with electrical isolation

  • High-speed CAN interface according to ISO11898-2
  • Electrical isolation via optocouplers and DC/DC converters

  • Support of 11-bit CAN identifiers and 29-bit CAN identifiers

  • MB90F543 microcontroller


  • Easy configuration of the CAN-CBM-Bridge/2 via serial interface (RS232) of the PC

Linking two CAN networks

The module CAN-CBM-Bridge/2 can link two independent CAN networks. The networks can be operated with different bit rates. The module operates with a MB90F543 microcontroller, which buffers the CAN data in a local SRAM. The firmware is in the flash. A serial EEPROM stores parameters.

Physical Interfaces

The ISO 11898-compatible CAN interfaces allow each a maximum data-transfer rate of 1 Mbit/s. The CAN interfaces are electrically insulated by optocouplers and DC/DC converters. They are connected via 5-pin screw/plug connectors in Combicon design


The RS-232 is used as serial programming interface. The interface is connected via a DSUB9 connector.
The CAN-CBM-Bridge/2 module can easily be configured by means of a terminal, e.g. Windows Hyperterminal.
The module is a 11-bit-ID and a 29-bit-ID Bridge. Up to 26 unidirectional links of identifiers can be configured. Beyond that up to four masks can be defined to link the identifiers completely or to link defined ranges of identifiers.

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Number: C.2853.02

Compact module-DIN rail mountable, 2 CAN interfaces, physical layer according to ISO 11898, electrically isolated, up to 1 MBit/s, firmware with Bridge functionality, baudrate adjustable via software for each CAN Interface, additional RS-232 is used for configuration

  • galvanically isolated
  • CAN
Form factor: Railmount  
  • CAN-Layer 2
HS Code: 85176200