Eaton N390B-76M-8AP 76 m OM4 8-Fiber MPO Cable

Extend an MPO multimode link across a 76 m cable run while retaining an 8-fiber, female-to-female connector arrangement. Eaton N390B-76M-8AP uses OM4 50/125 µm multimode fiber and APC-polished MPO ends. Its Type B polarity maps fiber positions in reverse from one end to the other, so the cable must be matched to the polarity method used by the connected trunks, cassettes, or optical equipment. Eight fibers make this cable suited to interfaces and structured-cabling paths that use an 8-fiber MPO format rather than individual duplex connectors. The 76 m fixed length addresses runs that exceed short equipment-row patching while avoiding field termination. Female MPO connectors mate with corresponding male MPO interfaces; APC end-face geometry should likewise match the interfaces at both ends. Select it where OM4 multimode media, 50/125 µm construction, 8-fiber count, female-to-female MPO connectivity, APC polish, and Type B polarity are each required. Those attributes are interdependent: connector gender governs physical mating, while fiber count and polarity govern how lanes are presented across the link. The cable supplies a pre-terminated optical path, not active signal conversion or a change in connector format. This matters when a channel's lane mapping is established end to end before installation begins.