Las Colinas is a 6,500 acre land development served by a two-way cable system owned and operated by the Las Colinas Association. By virtue of being a multi-user land development consisting of residential, commercial and industrial facilities, it provides a unique opportunity for evaluating the full range of issues associated with the utilization of two-way capabilities. In particular, their experience indicates that there are four areas concerned that must be addressed by the cable operator: 1) plant and product reliability; 2) alarm signal receiving and processing procedures; 3) design and installation of proprietary systems; 4) special purpose local origination capabilities.