Stackable converter from
ISO 11898-2 to fiber optic cable

The CAN-CR210/FO 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.

For creating star or tree topologies, several CAN-CR210/FO can be connected to a CAN-hub via the integrated backbone bus (also in conjunction with CAN-CR200).
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.


Features and benefits

  • DIN-Rail backbone bus to line up and connect the devices easily
  • Fiber optic enables transmission in areas with high electromagnetic disturbances
  • Increased system reliability
  • Almost no influence on real-time behavior

Technical specifications

DisplayTransmit and defective segment (three duo LEDs), Power (one LED)
CAN bus interfaceISO 11898-2, Sub-D9 connector. CAN termination resistors are integrated (switchable). Integrated backbone bus.
FOC connection2 x F-SMA or ST terminal for duplex line (multi-mode glass 50/125 µm, 62.5/125 µm duplex)
BaudrateUp to 1 Mbit/s
Delay~300 ns (translates into ~60 m (~90ft.) 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 supply9-35 V DC, 1.5 W typ., through terminals
Galvanic isolation1 kV, 1 sec.; CAN 1
CertificationCE, FCC
Temperature range-20 ºC … +70 ºC
HousingPlastic enclosure
Size22.5 x 100 x 115 mm (without FO connector)

Contents of delivery

  • CAN-CR210/FO
  • Quick reference

Accessories (not included)

  • T bus connector for creating star / tree topologies

Order numbers

1.01.0068.45010CAN-CR210/FO – Glass fiber version with F-SMA connector
1.01.0068.46010CAN-CR210/FO – Glass fiber version with ST connector
1.04.0073.00000T bus connector

Learn more about the repeaters and see how they work

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.