What are the properties of digital class connectors?

I. What are the properties of digital class connectors? First of all, the optical properties, in addition to consider the interchangeability of fiber optic connectors, repeatability, tensile strength, temperature and the number of insertion and extraction. (1) optical performance for optical fiber connector optical performance requirements, mainly insertion loss and return loss of the two most basic parameters. Insertion loss (InsertionLoss) that is, connection loss, refers to the link caused by the introduction of the connector effective optical power loss. Insertion loss is as small as possible, the general requirement should not be greater than 0.5 dB. return loss (ReturnLoss, ReflectionLoss) refers to the connector on the link optical power reflection inhibition ability, its typical value should not be less than 25 dB. practical application of the connector, the pin surface has been specially polished, can make the return loss is greater, generally not less than 45 dB. (2) interchangeability, repeatability fiber optic connector is a universal passive device, for the same type of fiber optic connector, generally can be used in any combination, and can be repeated many times, which leads to additional loss is generally less than 0.2dB in the range. (3) tensile strength for a good fiber optic connector, the general requirements of its tensile strength should not be less than 90N. (4) temperature general requirements, fiber optic connectors must be -40oC ~ +70oC temperature can be used normally. (5) The number of times the fiber optic connectors used now can basically be inserted and removed more than l000 times.

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