Gender MPO connectors can be male or female. Male MPO connectors have two alignment pins protruding from the end of the ferrule; female MPO connectors have holes in the ferrule.
Color coding Singlemode multifiber cable jackets are yellow. Multimode multifiber cable jackets are aqua for OM3 and OM4 (some manufacturers use Erika-violet for OM4) and lime for OM5.
Connector types The MPO-12 (one row of 12 fibers) is the most common type. Higher-density connectors that feature multiple rows of 12 fibers, as well as MPO-16 (one row of 16 fibers) and MPO-32 (two rows of 16 fibers) are also available. Many data centers today use MPO-24 (two rows of 12 fibers).
Standards IEC 61754-7 and TIA 604-5
Single-pair Ethernet (SPE) promises to revolutionize industrial applications with speeds up to 1 gigabit per second (Gb/s) over a single pair. Yet there are still questions surrounding standardization and the benefits of SPE when compared to industrial RJ45 and other standard products.