12-Fiber Multimode OM3 MPO Female no guide pins to MPO Female no guide pins - Method A/B Polarity

This multimode OM3 fiber optic MPO trunk cable is made with Corning glass fiber and consists of a MPO/MTP female connector on both ends. It is used in high bandwidth datacenter applications connecting switches or MPO/MTP cassettes.

MPO POLARITY, METHOD A VS. METHOD B

MPO/MTP cables can be conpd in a number of different polarities, method A, method B or method C.

Method A would be considered straight through, position 1-1, 2-2, 3-3 etc.

Method B is considered cross over, position 1-12, 2-11, 3-10 etc.

Method C would be the least common and is considered a paired cross over, position 1-2, 2-1, 3-4, 4-3 etc.

Infinite Cables stocks method A and method B cables. Method C cables are available by special order. The diagrams below further highlight method A and method B polarities.

METHOD A

METHOD B

Physical Characteristics
Color	Aqua
Cable Diameter	3mm
Fiber Count	12 Fibers
Fiber Type	Multimode OM3 50/125 Micron
Polarity	Method A / Method B
Jacket Rating	Plenum (OFNP)
Connector(s)
Connector A	1 - 12-Position MPO Female (no guide pins) Elite Connectors
Connector B	1 - 12-Position MPO/PC Female (no guide pins) Elite Connectors
Performance
Insertion Loss	≤0.35 dB
Return Loss	≥20db
Testing	100% IL, RL and Interferometer Tested
Environmental
RoHS	Yes
UL	UL Listed Cable
Packaging Information
Warranty	Limited Lifetime