Optical power margin — In an optical communications link, the optical power margin is the difference between the optical power that is launched by a given transmitter into the fiber, less transmission losses from all causes, and the minimum optical power that is… … Wikipedia
RF power margin — In telecommunication, the term RF power margin has the following meanings: 1. The amount of transmitter power above that which is computed by the link designer as the minimum required to meet specified link performance. Note: The RF power margin… … Wikipedia
Power supply unit (computer) — Power supply unit with top cover removed A power supply unit (PSU) supplies direct current (DC) power to the other components in a computer. It converts general purpose alternating current (AC) electric power from the mains (110 V to… … Wikipedia
Power over Ethernet — or PoE technology describes a system to transfer electrical power, along with data, to remote devices over standard twisted pair cable in an Ethernet network. This technology is useful for powering IP telephones, wireless LAN access points,… … Wikipedia
Power rating — In electrical engineering, the power rating of a device is a guideline set by the manufacturer as a maximum power to be used with that device. This limit is usually set somewhat lower than the level where the device will be damaged, to allow a… … Wikipedia
margin — mar|gin W3S3 [ˈma:dʒın US ˈma:r ] n [Date: 1300 1400; : Latin; Origin: margo border ] 1.) the empty space at the side of a page ▪ Someone had scribbled a note in the margin . ▪ Use double spacing and wide margins to leave room for comments. 2.)… … Dictionary of contemporary English
Electrical power industry — The electrical power industry provides the production and delivery of electrical power (electrical energy), often known as power, or electricity, in sufficient quantities to areas that need electricity through a grid. Many households and… … Wikipedia
Optical power budget — The optical power budget in a fiber optic communication link is the allocation of available optical power (launched into a given fiber by a given source) among various loss producing mechanisms such as launch coupling loss, fiber attenuation,… … Wikipedia
Buying Power — The money an investor has available to buy securities. In a margin account, the buying power is the total cash held in the brokerage account plus maximum margin available. Also referred to as excess equity. For example, if you have $1,000 cash in … Investment dictionary
Contribution margin — Decomposing Sales as Contribution plus Variable Costs. In the *****Cost Volume Profit Analysis model, costs are linear in volume. In cost volume profit analysis, a form of management accounting, contribution margin is the marginal profit per unit … Wikipedia
