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CAN Bus Fiberoptic Router


The CG FL CAN Bus fiberoptic router, fitted in a compact housing with integrated connector, transmits data between CAN subnets via optical fiber. It allows the realization of the high CAN data rates on the copper based segments while high system extension and short latency times are achieved at the same time.

CAN Bus Fiberoptic Router - CG-FL

The underlying technology offers the possibility to run the subnets on both ends at 1Mbit/s, earning the benefits of short reaction times and high data throughput.

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Key Features

  • CAN Interface for Commercial, Business, and Industrial applications
    • FCC Class A Verified: Use is restricted to commercial, business, and industrial environments
    • Class IIIb Laser Device: Utilizing products are subject to US federal regulations relating to Class IIIb lasers
  • Optical fibre based router for connection of CAN subnets
  • Overcomes the relationship of cable length to data rate for the complete system
  • Fiber length up to 1km (CG FL-1000/CMD) or 4km (CG FL-4000/CMD)
  • Different baud rates in subnets possible
  • Switchable termination resistor

CG FL CAN Fiberoptic Router in action

Technical Data

Layout and Connection

CG FL has a male and a female D-Sub-9 connector to attach both CAN and power supply. The optical fibre is connected by a pair of ST plugs. 62.5/125µm or 50/125µm multi mode glass fibers can be used.

Absolute Limiting Values

Parameter Minimal Maximal Unit
Storage temperature -20 +80 °C
Operating temperature 0 +60 °C
Operating voltage -100 +30 V
Voltage on CAN bus connections -30 +30 V
Optical Transmit Power - 120 mW

Any (also temporary) stress in excess of the limiting values may cause permanent damage on CG FL and other connected devices. Exposure to limiting conditions for extended periods may affect the reliability and shorten the life cycle of the device. vice.

Nominal Values

Parameter Minimal Typical Maximal Unit
Current consumption - 30 45 mA
Operating voltage 10 24 30 V
Switchable termination resistor 188.8 120.0 121.2 Ω
Optical damping (CG FL-1000) - - 7 db
Optical damping (CG FL-4000) 2 - 12 db
Admisable fibre length (CG FL-1000) - 1000 - m
Admissable fibre length (CG FL-4000) - 4000 - m
Wavelength - 850 - nm
Optical Transmit Power ** - - 20 mW

** Hard limited to 120mW per Absolute Limiting Values

All values, unless otherwise specified, refer to a supply voltage of 24V (CG FL) and an environmental temperature of 20°C. Fibre length specifications are valid for fibre damping of 3dB/km without additional patch panels.

Scope of Delivery

  • CAN-LWL-Router CG FL
  • User Manual