US Patent 10302876 Multi-channel optical insert

A connector comprising a first outer housing defining at least one cavity, the cavity being cylindrical, a first insert disposed in the cavity, the first insert comprising at least a first housing, the housing being cylindrical, a first ferrule in the first housing, the first ferrule configured with arcuate sides to be received in the cavity, the first ferule comprising an end face, at least one alignment hole for receiving an alignment pin defined in the end face, and at least one fiber-receiving channel for receiving an optical fiber, an optical fiber disposed in the fiber-receiving channel of the first ferrule.