“OM” is abbreviated for optical multimode, and it is specified by the ISO/IEC 11801 international standard. Currently, TIA and IEC defined fiber patch cord standards are OM1, OM2, OM3, OM4, and

MPO stands for Multi-Fiber Push On. MPO fiber patch cord is a high-density fiber optic transmission jumper which consists of MPO connectors and fiber cables. The MPO connector is built on the MT-style