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-CR300

CAN / CAN FD repeater with screw terminals
and 4 channels

The CAN-CR300 is used for galvanic isolation of CAN / CAN FD network segments and to design tree or star topologies. As a special feature, the repeater separates a defective segment from the rest of the network, allowing the remaining network to continue working. After the fault has been eliminated, the segment is automatically switched back to the network. The galvanic isolation is provided for the CAN / CAN FD segments as well as for the power supply.

CAN-CR300 CAN-FD-Repeater
  • CAN and CAN FD interfaces in one device
  • 4 x CAN / CAN FD
  • Cost savings due to simple wiring
  • Increased system reliability
  • Almost no influence on real-time behavior
  • CAN-CR300
  • User manual
Display Transmit and defective segment (four duo LEDs, one for
each segment), Power (one LED)
CAN bus interface ISO 11898-2 with CAN choke. Two screw terminals.
Available with and without integrated CAN termination.
CAN baudrate Up to 1 Mbit/s
CAN FD bus interface ISO CAN FD and nonISO CAN FD
CAN FD baudrate 500 kbit/s (arbitration bitrate) and up to 4 Mbit/s  (flexible data rate)
Delay typ. 175 ns (corresponds to ~35 m bus length)
Power supply 9-36 V DC, typ. 90 mA, max. 125 mA, through terminals
Galvanic isolation 1 kV DC / 1 sec, 500 V AC / 1 min; All CAN channels
and power supply are galvanically isolated from each other.
Certification CE, FCC
Temperature range  -20 ºC ... +70 ºC
Housing, size Plastic enclosure, 22.5 x 105 x 114 mm

Order number

1.01.0210.40000 CAN-CR300, with bus termination resistor
1.01.0210.40200 CAN-CR300, without bus termination resistor

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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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.