The RLH 4 Channel Contact Closure fiber link system provides a transmission of up to four independent contact closure signals over one optical fiber. The system comprises two 4 channel cards, a transmitter card and a receiver card.
The transmitter card provides the electrical-to-optical interface between dry contact closure relay input and a fiber strand.
The receiver card is locally powered by a 24-56VDC source and provides LED indicators to display relay conditions, power, and fiber carrier receive.
This fiber link card is designed to be installed into any of the RLH Fiber Link Card Housings, and occupies a single card slot.
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