CSI designs and manufactures Fiberlink® fiber optic transmission systems for video, audio and data,
Scan Do® scan converters,
Deuce® video scalers and more!
Communications Specialties, Inc. (CSI) offers a comprehensive line of point-to-point and point-to-multipoint fiber optic transmission systems for video, audio and data.
All products within the Fiberlink® line deliver state-of-the-art performance at unparalleled pricing.
Be sure to check out our Fiber Optic Test Equipment!

The Fiberlink® 5100 Series transmits 10/100/1000 Base-T Ethernet over one or two single mode or multimode fiber optic cables. The Fiberlink® 5100 supports both full and half duplex modes and is ideal for IT, broadcast and pro a/v...
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The XRD-8050 supports fiber optic data transmission for CALTRANS 170 or 179 series and NEMA traffic signal controller applications. It is ideal for Intelligent Transportation and Traffic and Control applications.Features:Implements a fiber...
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The Fiberlink® XC/RC-1000A transmits eight independent contact closure
or TTL signals over a single fiber and is ideal for Security Centers,
Casinos, Power Plants and Industrial Facilities. The eight independent
channels may be used in...
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The Fiberlink® XC/RC-1000A transmits eight independent contact closure or TTL signals over a single fiber and is ideal for Security Centers, Casinos, Power Plants and Industrial Facilities. The eight independent channels may be used in any...
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