The below specification is about Patch Cords.
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Main Features
Low insertion loss and back reflection loss, Easy installation,Good Durability,High temperature stability.
Insertion Loss:        below 0.2DB
Return Loss: Above 55dB
Be used toTelecommunications, Optical test equipment,FTTX system.

AVAILABILITY:
Simplex/Duplex patch-cord available
Fan-out available
Pigtail available
Various boot (cable)sizes