Final answer:
To attach an AFL Fujikura FASTConnect connector, you should leave at least 25 mm of fiber at the end.
Step-by-step explanation:
In preparation for attaching an AFL Fujikura FASTConnect connector, you should leave at least 25 mm at the end of a fiber. The purpose of leaving this length is to allow for the proper alignment and connection of the connector to the fiber.
Leaving a sufficient length of fiber ensures that there is enough space for the connector to be securely attached and the connection to be made without any strain or tension on the fiber. This helps to maintain the integrity and reliability of the connection.
In some cases, a slightly longer length of fiber, such as the options given in the question, may also be acceptable depending on the specific requirements of the connector and the application.