User Manual

Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System
3-8
As with any fiber optic connector, the optical end should be kept clean and be dusted with air-
spray prior to insertion into a SC/APC to SC/APC adapter on the CDU or ERAU. If good
optical contact is not maintained, there can be link failure or high noise figure, as considerable
back reflections could result in a higher-than-normal noise floor in the antenna link. To keep the
cables clean during shipping and installation, protective dust caps are provided on the Andrew
composite cable fiber connectors. The ERAU and CDU SC/APC-SC/APC bulkhead connectors
are also provided with dust caps to ensure optimal connections.
Fiber Optic Installation Note
For installation in plenum areas, plenum-rated cable jackets are required to meet
local and US safety codes. Fiber optic cables are available for many uses and
with many types of outer coatings. Take care to ensure that only plenum rated
cables are used where required