The blown fiber system technology uses compressed air or nitrogen to literally blow (or “jet”) lightweight optical fiber micro cables, or units, through predefined routes at rates up to 500 feet per minute. The micro duct consists of multiple individual tubes, bundled into. communications company, back in the 1980's. Previously, blown cable had a niche in special environments, but today they are gaining popularity due to significant adv. This application note discusses fiber optic cable installation by blowing technique, the factors effecting blowing performance and best practices. The use of Air Blown Fiber Systems gives complete freedom from risk by pre-installing a ducting route and then blowing in the fiber element when required. The. The cable blowing technique first appeared in the early 80s. As optical fibre cables are intrinsically much lighter than copper cables, blowing became an alternative to drawing (cable drawn with a needle) when installing cables in ducts. Traditional installations include pulling fiber wheras pushing fiber using jetting equipment is known as a blown fiber system. Today, blown fiber optic cabling is.
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