The Emerson BUPX is ideal for multi-tenant dwelling applications where two service providers maintain telephone service to subscribers in the same building. Each carrier can terminate, protect, and distribute up to fifty pairs into the building, wherein subscribers are quickly and easily connected on an IDC (insulation displacement connection) cross-connect field. The BUPX is made of heavy gauge mill-galvanized steel treated with a unique finishing process for longer life. A 216-type can wrench (Emerson catalog no. 15 or 38) is required to open the unit. For further security, each unit is also equipped with a padlock hasp.