Repeaters

for CAN, CAN FD and
CAN-based higher layer protocols



Ixxat repeaters are used to establish a physical coupling of two or more segments of a CAN or CAN FD bus system. They can be used to implement tree or star topologies as well as for long drop lines. In addition, network segments can be electrically decoupled using a galvanically isolated repeater. 


CAN Repeaters
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Increase reliability

CAN and CAN FD repeaters increase your system reliability with almost no influence on the real-time behavior.

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For harsh environments

Ixxat repeaters decouple CAN or CAN FD segments galvanically up to 4 kV and are also available as variants with fiber optics.

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Save costs

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

CAN Repeater

ISO 11898-2 CAN repeater
with low-speed option

This product is not recommended for new developments. For new developments we recommend to use a successor product of the Ixxat CAN-CR1/2/3xx product family.

The CAN Repeater is used for the galvanic isolation of two segments of a CAN network and for creating star or tree topologies. One special feature of the Repeater is that it separates a defective segment from the rest of the network so that the remaining network can continue working. After elimination of the defect, the segment is switched into the network again.

Alternative, the Repeater can be equipped with a low-speed bus interface (ISO 11898-3), allowing the operation as high/low-speed converter. Its galvanic isolation isolates both CAN segments from each other as well as from the power supply.

CAN Repeater
  • Signal conversion between High- and Low-Speed CAN
  • Cost savings due to simple wiring
  • Increased system reliability
  • Almost no influence on real-time behavior
  • CAN-Repeater
  • Quick reference
Display Transmit (2 green LEDs), defective segment (2 red LEDs)
CAN bus interface ISO 11898-2 with CAN choke. Screw terminals. CAN termination resistors are integrated (switchable).
Baudrate Up to 1 Mbit/s
Delay 200 ns (corresponds ~40 m (~120ft.) bus length)
Power supply 9-35 V DC, 1.5 W typ., through terminals
Galvanic isolation 1 kV, 1 sec.; CAN 1, CAN 2 and power supply are galvanic isolated against each other.
Certification CE
Temperature range  -20 ºC ... +70 ºC
Housing, size Plastic enclosure, 110 x 75 x 22 mm

Order number

1.01.0064.44000 CAN-Repeater (2 x ISO 11898-2) with galvanic isolation
1.01.0064.46000 CAN-Repeater (ISO 11898-2 to ISO 11898-3) with galvanic isolation

Learn more about the repeaters and see how they work
Click to see application samples...

The lines coupled by the repeater are independent electric segments that can be optimally terminated in terms of signals. In this way topologies can be implemented that are not possible with a pure line of the bus due to electrical reflections. According to the transceiver output capacities, the division of a CAN / CAN FD system into several subsystems, connected via CAN / CAN FD repeaters, increases the maximum number of bus nodes. Using repeaters does not influence the real-time behavior of a system because in terms of transmission behavior it corresponds to a network that consists only of lines. In terms of signals, the repeater corresponds to a line with relevant delay time. Therefore, it cannot be used to extend a CAN / CAN FD system. However, using repeaters allows to increase the system dimensions indirectly, as shown in the sample.

Conventional bus structure
The distance between the two nodes furthest apart (1/6) is 220 meters test
       

Conventional bus structure

Extended structure with drop line
The distance between the two nodes furthest apart (1/4 or 4/6) is 150 meters
       

Extended structure with drop line

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