Optical Fiber to CAN converter GCAN-208

Brand: GCAN
Model: GCAN-208-1
1. Metro tunnel sensor monitoring system.
2. Building Fire Distributed Control System.
3. The internal communication transformation of the wind turbine.
4. Networking of substation security monitoring system.

Product Introduction


The GCAN-208 optical fiber to CAN converter can convert CAN bus signals to optical signal. The conversion time between CAN data and optical signals is microsecond, ensuring the real-time communication. The GCAN-208 supports any CAN bus communication protocol such as CANopen, SAE J1939, DeviceNet, NMEA2000, etc.
It can be used for extending CAN bus communication distance, eliminating long-distance communication interference, and preventing the bus from being damaged.


CAN connector Open3 terminal block
CAN interface CAN 2.0A, CAN 2.0B, conform to ISO11898-2
CAN baud rate 5kbit/s to 1Mbit/s, can be configed
CAN resistor 120Ω selected by DIP switch
Fiber optic channel 1 fiber-2 CAN, 2 fiber-1 CAN selectable
Fiber optic interface single/multi-mode, simplex/duplex fiber selectable
Isolation DC 1500V electrical isolation
Maximum frame rate 8000fps
Size(LxWxH) 121 x 93 x 22 mm
Weight approx.230g
Operating temperature -40°C~85°C
Humidity 15 to 95% non-condensing
Power supply
Power Supply 9~30V DC
Current 20mA, 24V DC

1. Point-to-point connection: Using a pair of GCAN-206 optical fiber to CAN converter to realize CAN bus data long-distance transmission.  As shown in the figure below:

2. Hand in hand connection (cascade): Using two-channel optical fiber to CAN module can connect the CAN bus network in many places together, and transmit CAN data to each node on the network through the optical fiber. It is often used in the networking scheme of fire host, as shown in the figure below:


  1. GCAN-208-1 has 2 CAN interface and 1 Fiber interface;
  2. GCAN-208-2 has 1 CAN interface and 2 Fiber interface;
  3. Power supply: 9~30V(50mA, 24V DC);
  4. Surge immunity level: ±1KV;
  5. Working temperature range from -40 to 85°C;
  6. Operating humidity range: 5% to 95% RH no condensation;
  7. Integrated 1 or 2 CAN-Bus interface with terminal;
  8. CAN-Bus signals include: CAN_H, CAN_L, CAN_GND;
  9. CAN-Bus supports CAN2.0A and CAN2.0B, conform to ISO/DIS 11898 standards;
  10. CAN-Bus baud rates range from 5Kbps to 1Mbps, configured by DIP switch;
  11. CAN-Bus isolation converter insulation voltage: DC 1500V;
  12. Fiber interface: SC, ST, FC optional;
  13. Fiber transmission mode: single mode, multi mode optional;
  14. Size: (L)121mm * (W)93mm * (H)22mm.
Our Service

Standard package: Carton
Delivery Time
2~5 days after receipt of your payment by air express
After-sale service
GCAN provide one year free after-sales warranty, lifetime free software and technical support.
User Manual(Click to view)

GCAN-208 (Fiber to CAN) converter