An increasing number of subscribers are being served by loop-thru wiring in apartment houses and a strong need exists for systems to control service to those subscribers. Two new devices, a flush-mounted wall-box intelligent tap and an addressable disconnect unit are now available to exercise control. The intelligent tap for loop-thru service is part of a complete system of addressable control for basic services and Pay-TV. The limited address disconnect device is offered as a means of cutting losses in problem locations.