Fiber count
SM OS2, 250 µm coated fiber.
Termination type and connector count
For each end, pick one ferrule type, how many connectors, pin gender and polish. Every connector on an end is the same type, and they must add up to the fiber count. Types that can't do that are crossed out. MPO12 can also run 8 fibers with positions 5–8 left empty, the layout used by transceiver ports.
Length
Enter a length greater than zero.
Polarity
Drag from a left position to a right position. On touch screens, tap a left position, then tap its destination. Tap a connected right position to disconnect it.