Standard MT and PrizmMT MPO Cables
The most common connector for EDR is the 4x PrizmMT (PMT) MPO cable. Unlike the standard MT ferrules found in traditional MPO cables, which are black in color and function by way of physical contact between fiber tips, the new PrizmMT ferrules in these new PrizmMT MPO cables use clear plastic molded lenses to transmit laser light between fibers across small air gaps.
 | Caution - Connecting a PrizmMT MPO cable to a standard MT MPO cable or port, such as on a QSFP transceiver, will damage the PrizmMT ferrule and render the cable unusable. |
This table identifies PrizmMT MPO cable end types by the features of ferrule type, shell color, alignment method, and describes what that cable end type connects with.
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Note - Some supported cables have a PrizmMT MPO connector on one end, and a Standard MT connector on the other. Pay close attention when connecting this cable, to identify which connector is which, and not confuse the two.
Visually comparing the design of the three cables, note the differences between the Standard MT MPO cable on the left, with the PrizmMT MPO cables in the middle and on the right.
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