Service walls are wall assemblies, wall-mounted units or modular units that contain specific services intended for use within an interior space.  Types of services may include: medical services, drinking fountains, electric outlets, clocks, fire hoses and alarms, extinguisher cabinets, telephone and internet connections, waste receptacles, or other services.  This type of system is most commonly used in the health care industry, although the term service wall can also be used to describe other typical wall assemblies where services are installed.