TIA TR-42.11 Engineering Committee on Optical Systems has issued a call for interest for document TIA-526.7-A  ”Measurement of Optical Power Loss of Installed Single-Mode Fiber Cable Plant, Adoption of IEC 61280-4-2 edition 2: Fibre-Optic Communications Subsystem Test Procedures – Part 4-2: Installed Cable Plant – Single-Mode Attenuation and Optical Return Loss Measurement”. This standard applies to the measurement of attenuation and optical return loss of installed optical fiber cable plant containing single-mode fiber.

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