Plastic Optical Fiber Transceivers for Power Electronics Applications

RedLink transmitters feature a reliable resonant cavity light emitting diode with an integrated driver IC.

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Firecomms, a global leader in plastic optical fiber (POF) transceivers and fiber optic solutions, combining state-of the-art compound and silicon semiconductor technology with inventive small-scale integration, announced its comprehensive series of proven RedLink plastic optical fiber (POF) transceivers featuring high EMI immunity and robust RF signal isolation for industrial power electronics applications.

Firecomms’ RedLink transmitters feature a reliable resonant cavity light emitting diode (RCLED) with an integrated driver IC to send 650nm red wavelength light over plug-terminated plastic optical fiber to a RedLink receiver with integrated pulse width distortion modulation (PWM) circuitry and push-pull TTL CMOS output to provide reliable data transmission rates from DC to 50MBd for up to 50 meters. They support industry communications standards RS232, RS485, CAN-Bus, ModBus, and PROFIBUS.

The intrinsically safe visible light produced by the RCLED requires low operating current and simplifies set-up and testing. Available in inverting and non-inverting options, the RedLink Series devices operate from 5V or 3.3V DC rails with ±10% voltage tolerance at industrial temperature ranges from -40°C to +85°C.

The RedLink devices are available in horizontal, vertical, and 30° angled entry versions, in RoHA-compliant, flame retardant (UL 94 V-0) miniature housings.

“The Firecomms RedLink Series devices are ideal for networking of industrial high voltage power electronics systems that require high speed digital signals with robust EMI immunity and superior RF signal isolation,” said Bill Morrow, head of Sales for Firecomms Americas. “In addition, the plastic optical fiber connection provides greater flexibility, durability, and bend radius for robotic and machine applications that require movement; and their operating temperature range enables them to provide reliable connectivity in harsh environments such as traction controls.”

Firecomms’ RedLink® POF industrial grade transceivers provide high voltage isolation and EMI immunity for high voltage DC drives, robotics, renewable energy, medical diagnostic equipment, diesel and electric traction, industrial power control systems, and other power electronics applications.

For complete product and specification details about the Firecomms’ RedLink®Series devices, please visit: For more information about the complete range of Firecomms’ products, please visit:

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