The Secondary Hub connects to the Primary Hub via 2-core fiber optic cable for the purpose of extending the reach of optical signals from the Primary Hub or providing additional coverage for a system with the addition of up to eight Remotes per unit. The Secondary Hub supports optical connectivity to the Primary Hub as well as optical and electrical connectivity to the Remotes. Power Supply Unit (PSU) functionality is integrated into the Secondary Hub chassis and powers the Remotes via 48VDC, available on eight 2-way Phoenix connectors (which connect to the attached Remotes via copper wire). Secondary Hubs can be housed with the Primary Hub or distributed campus-wide, depending on the site layout.