What type of cable is commonly used for patch cords and backplanes?

Ribbon cable is commonly used for patch cords and backplanes due to its design, which allows multiple fibers to be arranged in a flat, ribbon-like format. This configuration provides high density in a compact space, making it ideal for applications where numerous fiber connections are required in close proximity, such as in patch panels or equipment backplanes.

The use of ribbon cable enhances organization and minimizes the footprint of the installation while maintaining flexibility for routing and connecting to various equipment. Additionally, the fibers can be mass-fused spliced, which increases efficiency in both installation and maintenance.

Other types of cable serve different purposes: simplex cable offers a single fiber strand, loose tube cable is designed for outdoor applications with more robust environmental protection, and gel-filled cable is used to prevent moisture ingress in outdoor settings. These characteristics make them less suitable for the specific needs of patch cords and backplanes when high density and easy organization are desired.