A wiring diagram is a simplified conventional pictorial representation of an electrical circuit. It shows the components of the circuit as simplified shapes, and the power and signal connections between the devices.
A wiring diagram usually gives information about the relative position and arrangement of devices and terminals on the devices, to help in building or servicing the device. This is unlike a schematic diagram, where the arrangement of the components' interconnections on the diagram usually does not correspond to the components' physical locations in the finished device. A pictorial diagram would show more detail of the physical appearance, whereas a wiring diagram uses a more symbolic notation to emphasize interconnections over physical appearance.
A wiring diagram is often used to troubleshoot problems and to make sure that all the connections have been made and that everything is present.
Architectural wiring diagrams show the approximate locations and interconnections of receptacles, lighting, and permanent electrical services in a building. Interconnecting wire routes may be shown approximately, where particular receptacles or fixtures must be on a common circuit.
Wiring diagrams use standard symbols for wiring devices, usually different from those used on schematic diagrams. The electrical symbols not only show where something is to be installed, but also what type of device is being installed. For example, a surface ceiling light is shown by one symbol, a recessed ceiling light has a different symbol, and a surface fluorescent light has another symbol. Each type of switch has a different symbol and so do the various outlets. There are symbols that show the location of smoke detectors, the doorbell chime, and thermostat. On large projects symbols may be numbered to show, for example, the panel board and circuit to which the device connects, and also to identify which of several types of fixture are to be installed at that location.
A set of wiring diagrams may be required by the electrical inspection authority to approve connection of the residence to the public electrical supply system.
Wiring diagrams will also include panel schedules for circuit breaker panelboards, and riser diagrams for special services such as fire alarm or closed circuit television or other special services.
Wikipedia
1. Requires an Internet connected Genie HD DVR (model HR34 or higher) connected to a primary television, a Wireless Genie Mini (model C41 or higher) in each additional room, and a Wireless Video Bridge. The primary television must be connected to the Genie HD DVR so wireless connection not available for that TV.
Connect your Genie DVR to the Internet. Get online with the DIRECTV Genie (HR20, HR21, HR22, HR23, HR24, HR34, or R22) or HD DVR by setting up the Wireless DIRECTV CINEMA Connection Kit.
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Recording option can be added though, by using Genie Lite HD DVR Kit which is DIRECTV prepared external hard drive. In addition, this receiver has a built in DIRECTV CINEMA™ Connection Kit (Wireless) which enables it for self connection to a Wi Fi network at your home and the Internet. Genie Lite supports DIRECTV Ready TVs and Genie Minis.
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Req's SELECT Pkg or above; OPTIMO MAS Pkg or above; or qual. Int'l svc bundle with PREFERRED CHOICE. $99 fee applies for Wireless Genie Mini upgrade. Whole Home HD DVR functionality req's an HD DVR connected to one television and a Genie Mini, H25 HD Receiver(s) or a DIRECTV Ready TV Device in each additional room.
Free Genie HD DVR upgrade. With DIRECTV, there's no equipment to buy. ... Enjoy added features like DIRECTV On Demand or use your high speed AT&T Internet connection to stream your favorite shows on the DIRECTV App. ... OPTIMO MAS Pkg or above; or qual. Int'l svc bundle with PREFERRED CHOICE. $99 fee applies for Wireless Genie Mini upgrade ...
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