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 all-digital Fiberlink® 7820 series has three modes of operation allowing the user to transmit high-quality HD/SD Component Video along with stereo audio, or S-Video and Composite Video along with stereo audio, or three channels of...
[learn more]
The Fiberlink® 3134 Series is a 10 Channel Video Multiplexer that transmits all-digital signals over one single mode or multimode fiber. Fiberlink® 3134 is capable of multiplexing up to 10 individual composite video sources onto one optical...
[learn more]
The Fiberlink® 7100 Series digitally transmits 15 MHz Wideband Video over one multimode or single mode fiber at 850, 1310 or 1550 nm using 10-bit video sampling. The video channel is compatible with NTSC, PAL or SECAM video standards. Pure...
[learn more]
The Beamer-V provides fiber optic transmission of composite video in a simple, low-cost system. It transmits up to three kilometers over multimode fiber at 850 nm at 8 MHz video bandwidth. Beamer-V is ideal for Security and A/V Confidence...
[learn more]