Fiber optic patch cords are used not only for patching between panels and devices,
but also as preterminated fiber cable runs. As termination tooling can be expensive
and require craftsmanship to install, it is often easier to purchase preterminated fiber
cable lengths that are plug and play. Also, it is common for fiber cables to bridge
between Levels which may require a diffent Level connector on either side of the span.
So with fiber patch cords, there are endless combinations of lengths and connector types.