Matrix PS System Installation and Commissioning Guide
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Dali Wireless Proprietary and Confidential | DW-MAN-036 Rev 06
The bend radius is specified by the fiber manufacturer. You can make larger curves but
never smaller than specified.
Macrobend
—a bend in the fiber cable which exceeds the minimum bend radius.
The minimum bend radius for fiber-optic cables should not be less than 10x the
outer diameter of the fiber cable jacketing or 2 inches, whichever is larger.
Radius Limiters are designed to eliminate macrobends.
Microbend
—a small nick in the cladding of an optical fiber.
Cleaning Fiber-Optic Connectors
The importance of clean fiber-optic connectors cannot be overstated. Ensuring fiber-
optic connectors are free of face debris and damage will eliminate the vast majority of
reported problems in the DAS.
Improperly cleaned, a contaminated optical connector can:
Damage the end-face of a mating connector.
Turn end-face debris into plasma which can permanently damage the end-face
polish or form.
Cause back reflections damaging optical fiber terminal equipment.
Cleaning Guidelines
Here are a few simple and easy to implement tips for avoiding contaminated junctions:
Keep environment as clean, dry, and dust free as possible.
Wash hands immediately prior to fiber work.
Keep all connectors and jacks properly CAPPED until use.
Clean connectors using ONLY approved cleaning kits.
Learn and master appropriate steps to clean junctions.
Inspect connections with a 200X fiber scope when installed.
Record and validate “as-built” F.O. link budget information.
Always clean fiber connectors prior to mating.