Which of the following is NOT a purpose of using bumpers in fiber optic installations?

Using bumpers in fiber optic installations serves multiple practical purposes related to the protection and handling of cables. It is essential to understand that their main roles include safeguarding cables during installation by cushioning them from impacts and preventing damage from physical handling, which ensures the integrity of the fibers within the cables. Bumpers also support alignment during splicing, aiding in maintaining the correct positioning of fibers to enhance connection quality.

The enhancement of fiber signal quality, however, is not a function of bumpers. While proper installation and handling are crucial for maintaining signal integrity, bumpers themselves do not directly affect the fiber's ability to carry signals effectively. Their primary role is more about physical protection and support rather than improving the optical performance of the fibers. This distinction clarifies why signal quality enhancement is not a purpose of using bumpers in fiber optic installations.