Gateways and Bridges/Router

open up a variety of connection possibilities


With bridges and gateways CAN or CAN FD systems can be coupled or implemented over a larger area, devices without CAN can be connected to CAN systems or CAN systems can be coupled using different technologies, e.g. Bluetooth, Ethernet or PROFINET.

Gateways and Bridges


Expand your system 

Bridges and gateways enable larger system expansions and increase the reliability of your system.


Cloud connection

MQTT cloud connection enables remote monitoring and alarms (CAN@net NT).


Save costs

Easier wiring and reduction of cables reduces the cost of your system.


Action rules

Execution of various actions using event-triggered rules (CAN@net NT & CANbridge NT).


Data manipulation

Filter and conversion functionality reduces network load and simplifies interconnection of various devices.



Bridging of large distances, easy system access and retrofitting of old devices using Bluetooth, Ethernet, PROFINET, CAN and CAN FD.


Configurable CAN-to-CAN Bridge / Router

The CANbridge allows the coupling of two CAN networks, including networks with different bit rates. The bridge/router has a powerful 16-bit microcontroller that can process bursts at higher data rates without message loss. LEDs signal the current status of the coupled networks.

The CANbridge is available in three different versions: as an industrial version in either a DIN rail housing or in a robust metal housing, and as an automotive version in a robust metal housing.

This product is not recommended for new developments. For new developments we recommend to use the successor product Ixxat CANbridge NT 200/420.

Order codes: 1.01.0121.11020, 1.01.0121.22020, 1.01.0120.22010, 1.01.0120.23010, 1.01.0120.22020

CAN Bridge Montage

Features and Benefits

  • Cost savings due to simple wiring
  • Allows larger system expansion
  • Filter and conversion functionality
  • Increased system reliability
  • Line protection by galvanic isolation

Contents of delivery

  • CANbridge
  • Operation Instruction
  • Configuration cable
  • Power supply cable (only 1.01.0120.xxxxx)

Technical specifications

Microcontroller Fujitsu MB90F543
CAN controller 2 x CAN on-chip, CAN 2.0A, 2.0B
CAN bus interface Industrial Version: 2x ISO 11898-2, as an option galvanic isolated
Automotive Version: 2x ISO 11898-2 (galvanic isolated) or 1x ISO 11898-2 (galvanic isolated) + 1x ISO 11898-3
Serial interface RS232 for device configuration
Power supply Industrial Version: 9-36 V, 1.5 W, Automotive Version: 7-16 V, 1.5 W
Temperature range -20 ºC ... +70 ºC
Certification CE
Housing, size Robust metal housing approx. 100 x 85 x 32 mm or plastic DIN rail housing approx. 110 x 75 x 22 mm

How it works

Unlike a CAN Repeater, which only translates the electric signals, the CAN messages are received completely by the CANbridge and then sent to the other CAN network in line with existing filter and conversion rules (Store-Forward principle). With the aid of conversion rules (gateway tables), CAN messages can be filtered or forwarded under another identifier. With these mechanisms, the bus load can be reduced in the individual networks by only sending messages which are of interest to the other network. 


The configuration of the CANbridge can be made using a configuration file, which is uploaded to the device via RS232 by an upload program included in the scope of delivery. 

Order options

  • Industrial version: Housing option, galvanic isolation
  • Automotive version: second CAN-bus interface according to ISO 11898-2 (high-speed) or ISO 11898-3 (low-speed)

Order number

1.01.0121.11020 CANbridge - DIN Rail, 2 x High-Speed Bus Interface, Industrial Version
1.01.0121.22020 CANbridge - DIN Rail, 2 x High-Speed Bus Interface (galvanic isolated), Industrial Version
1.01.0120.22010 CANbridge - Aluminium, 2 x High-Speed Bus Interface (galvanic isolated), Automotive Version
1.01.0120.23010 CANbridge - Aluminium, 1 x High-Speed Bus Interface (galvanic isolated) + 1 x Low-Speed Bus Interface, Automotive Version
1.01.0120.22020 CANbridge - Aluminium, 2 x High-Speed Bus Interface (galvanic isolated), Industrial Version

Learn more about bridges and gateways and see how they work
Click to see application samples...

CAN bridges and CAN gateways are infrastructure components with which complex network structures can be implemented.

A CAN bridge can connect CAN or CAN FD networks of different bit rates or protocols with each other. It is based on the store-(modify)-forward principle where CAN / CAN FD messages are received by a sub-network and then transmitted to the other sub-network. Translation and filter rules can also be used, allowing a protocol adaptation to be carried out between the sub-networks. Unlike the CAN / CAN FD repeater, the CANbridge enables the enlargement of the maximum network size so that the sub-systems are fully self-sufficient with regard to bus arbitration. Independent of each other in terms of their real-time behavior, CAN sub-networks connected by bridges are to be regarded as independent networks.

The bridge function can also be executed with the aid of other transmission systems. For example, the CAN-Ethernet-CAN bridge is connected via two Ethernet-TCP/IP gateways which enable connection to remote CAN / CAN FD networks.

As an extension to the CAN bridges, CAN gateways allow for access to CAN networks via other communication systems. In each case, the protocols of the connected bus systems are mapped to the other communication model.

Application samples:

CAN bridge
Using the CANbridge NT, CAN or CAN FD systems within a building can be separated for every flor, due to this the maximum system expansion can be easily extended.

CAN Bridge Application Sample

CAN gateway
CAN@net NT allows large distance coupling of CAN or CAN FD systems via Ethernet, e.g. for connecting the engine room with the control room on a ship.

CAN Gateway Application Sample

Compare the bridge / gateway functionality
Click to find the right product for your application...

  • CANbridge NT420
  • CAN@net NT420
  • FRC-EP170/190
CANbridge NT420 CAN@net NT420
Powerful gateway/logger solution from our automotive portfolio
CAN / CAN FD ports (max) 4 4 8
Digital IOs / Analog inputs 0 0 4 / 4
Frame / Signal based configuration / - / - / (DBC, LDF, Fibex, ARXML )
Signal visualization / Web browser - - Web browser / OPC UA / APP
Data logger - - (SD card, USB, PC)
Programming (C user code) - - with Eclipse IDE and Debugger
Matlab / Simulink / RBS - -
Further interfaces / Protocols - ETH, MQTT USB, ETH, WLAN, FlexRay, LIN, K-Line, Bluetooth, EtherCAT, OPC UA, FDX, XCP

CAN Brochure

Download our latest CAN brochure as PDF file and learn more about the various products we offer for CAN and CAN FD...
Technical Services

Development services and OEM products

From brand-labelling, to HW/SW modification to completely custom designed products.

CAN Accessories

HMS offers special cables, plugs and termination resistors for the CAN and CAN FD products.

All you need for CAN

Under the Ixxat and Anybus brands, HMS offers over 200 different products for CAN, CAN FD and the CAN-based protocols.