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.

FO Repeater

Converter from ISO 11898
to fiber optic cable

This product is not recommended for new developments. For new developments we recommend to use a successor product of the IXXAT CAN-CR2xx series.

The FO Repeater is used for the conversion of the CAN-signal from copper wire (ISO 11898-2) to fiber optic cables. This provides a complete isolation and protection against EM-influences.

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.

Order codes: 1.01.0063.01020

CAN Fiber Optic Repeater

Features and Benefits

  • Fiber optic enables transmission in areas with high electromagnetic disturbances
  • Increased system reliability
  • Almost no influence on real-time behavior

Contents of delivery

  • FO-Repeater
  • Quick reference

Technical specifications

Display Sending (2 green LEDs), defective segment (2 red LEDs)
CAN bus interface ISO 11898-2. Screw terminals. CAN termination resistors are integrated (switchable).
FOC connection 2 x ST terminals for duplex line (Glass 50/125 µm duplex)
Baudrate Up to 1 Mbit/s
Delay ~300 ns (translates into ~60 m (~90 ft.) bus length) between the wire connection of a FO Repeater through the fiber optic cable to the wire connection of a second FO Repeater (not including the signal delay time of the fiber optics, which is ~5 ns/m)
Power supply 9-35 V DC, 3 W typ., through terminals
Galvanic isolation 1 kV, 1 sec.; CAN 1
Certification CE
Temperature range  -20 ºC ... +60 ºC
Housing, size Plastic enclosure, 110 x 75 x 22 mm (without FO connector)

Order number

1.01.0063.01020 CAN Fiber Optic Repeater - Glass fiber version with ST connector

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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