What is the main function of splice trays inside splice closures?

The main function of splice trays inside splice closures is to protect mechanical splices and provide fiber slack storage. This is crucial because mechanical splices are sensitive components that require protection from environmental factors and physical stress that could affect their performance.

In typical installations, splice trays serve as a secure housing for these splices, ensuring that they remain intact and function correctly over time. Additionally, the trays are designed to neatly store excess fiber length, preventing strain on the fibers and allowing for easy maintenance or future adjustments. Proper management of fiber slack also helps avoid complications during installation or repair, where improper handling could lead to fiber damage or signal degradation.

Thus, splice trays play an essential role in the overall reliability and functionality of fiber optic networks by safeguarding splices and efficiently managing fiber resources.