By Gilbert Held
Knowing Broadband over energy Line explores all points of the know-how that permits electrical utilities to supply high-speed information communications through their electrical energy line infrastructure. This booklet examines the 2 equipment used to attach shoppers and companies to the net in the course of the software infrastructure: the present electric wiring of a house or workplace; and a instant neighborhood region community (WLAN) entry element. An appreciation for a way applied sciences paintings enables figuring out of ways broadband transmission over energy traces has the aptitude to supply ubiquitous communications that supply domestic clients, community managers, and LAN directors with one other approach to meet their high-speed networking specifications.
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Additional info for Understanding Broadband over Power Line
Sample text
Resistance represents the ratio of voltage to current and is measured in ohms; 1 ohm is defined as the resistance when 1 volt is applied to a material and the current is 1 amp. Resistance is denoted by the symbol R. The relationship between voltage, current, and resistance is referred to as ohm’s law, where: R (ohms) = voltage/current = volts/amps = V/I Using ohm’s law, we need to know only two of three measurements to compute the third. For example, assume we measure the current in a circuit to be 5 amps when 120 volts is applied.
At utility poles within a neighborhood, another device, commonly referred to as a bridge, is installed. Depending on the vendor of this product, the bridge may include one or more communications functions. 1 lists the possible functions that can be performed by a bridge mounted on a utility pole containing a transformer that provides low-voltage power to a cluster of homes or offices. 1, it’s apparent that the bridge represents the heart of a BPL transmission system. 11 WiFi standard, enables a low-cost commodity such as wireless LAN adapters to be used by customers.
Resistance is denoted by the symbol R. The relationship between voltage, current, and resistance is referred to as ohm’s law, where: R (ohms) = voltage/current = volts/amps = V/I Using ohm’s law, we need to know only two of three measurements to compute the third. For example, assume we measure the current in a circuit to be 5 amps when 120 volts is applied. fm Page 23 Tuesday, March 14, 2006 3:53 PM Power Line Operations Ⅲ 23 Similarly, if we know the resistance of a circuit is 24 ohms and we measure the current flowing through the circuit, we can compute the voltage.