While fiber connectors require a certain reflectance performance to comply with industry component standards, it is not something you typically need to test for with the exception of new short-reach singlemode applications. Aunque los transceptores multimodo son extremadamente tolerantes a la reflexión, los transceptores monomodo no lo son. And low-cost, low-power singlemode transceivers used in short-reach applications like are even more susceptible to reflectance.
As a result, IEEE actually specifies insertion loss limits for new short-reach applications based on the number and reflectance of connections in the channel. As shown in the table, in a application with four connectors that have a reflectance between, the insertion loss is But with four connectors that have a reflectance between , the insertion loss goes down.
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