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3.2 Single-drum Optical Fiber Cable Examination
3.2.1 Single-drumoptical fiber cable examination mainly includes:re-measuring of cable fiber length，measurement of optical fiber loss and observation on backscattering curve.
3.2.2 Transmission characteristics of optical fiber cables shall meet design requirements.Single-drum cable length shall be in compliance with the project design requirements and be identical to the length designated by the manufacturer.