The MIMO technology standard proposed for 5 G and next generation mobile communication base stations can increase the system capacity directly by increasing the number of antennas

which is characterized by placing dozens or even hundreds of antennas in a large-scale antenna array. By use of optical fiber directly connection between the antenna and the base station

so large-scale antennas need to use high-density fiber optic connectors. This paper presents a new type of outdoor multi-core MPO/MTP cable assemblies that can be used in large-scale distributed antenna base stations to replace the normal 2-core LC cable assemblies

which can directly boost the capacity of a single base station and the connection efficiency between the base station and the base station greatly improved

the connection costs significantly reduced as well.