single detached dwelling unit means a residential building consisting of one dwelling unit and not attached to another structure;
single detached dwelling means a completely detached Building containing only one Dwelling Unit;
semi-detached dwelling means a building divided vertically into two dwelling units each of which has a separate entrance and access to grade;
Loose-fitting facepiece means a respiratory inlet covering that is designed to form a partial seal with the face.
Loop Concentrator/Multiplexer or "LCM" is the Network Element that does one or more of the following: aggregates lower bit rate or bandwidth signals to higher bit rate or bandwidth signals (multiplexing); disaggregates higher bit rate or bandwidth signals to lower bit rate or bandwidth signals (demultiplexing); aggregates a specified number of signals or channels to fewer channels (concentrating); performs signal conversion, including encoding of signals (e.g., analog to digital and digital to analog signal conversion); or in some instances performs electrical to optical (E/O) conversion. LCM includes DLC, and D4 channel banks and may be located in Remote Terminals or Central Offices.