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Model CANFB isolates and protects CAN (Control Area Network) systems from component killing surges and transients in noisy and harsh environments. Model CANFB is a copper-to-fiber, fiber-to-copper converter that provides 2kV optical isolation for CAN systems. It separates and protects critical segments of the system from the rest of the CAN network. It is protocol independent, allowing it to work with different CAN protocols and frame lengths. Model CANFB converter is used in pairs, one for each side of the fiber._x000D_
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The CAN side is connected to the system via terminal blocks. Fiber is connected via ST connectors (multi-mode). Model CANFB is housed in a rugged DIN rail mountable box, making it easy to install in industrial cabinets. A 10-30 VDC power supply is required (sold separately)._x000D_
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According to the CAN specification, the CAN network must be terminated at both ends. Networks not properly terminated may have data errors or miss the data completely. The CANFB creates two new ends on the CAN network. Space is provided on the board for a termination resistor, R8. A 120 Ohm resistor is recommended for termination. If the CANFB is not at the end of the network, it should not be terminated._x000D_
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Model CANFB is bit-wise enabled, allowing it to automatically adjust for different baud rates. Bit-wise enable only enables the driver on every low bit received. It also disables the driver on the receive side for the low bit plus a maximum of 2µ sec. This prevents data from echoing back from the CANFB, but allows the nodes to respond back. The maximum fiber length used depends on the baud rate, the CANFB, and length of copper wire used. The CAN bus requires a response in one bit time.