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BS EN 61334-6:2001, IEC 61334-6:2000
Find Similar Items This product falls into the following categories. Views Read Edit View history. The physical layer synchronizes a small packet of tones to the zero-crossing of the power line’s voltage. Verteilungsautomatisierung mit Hilfe von Traegersystemen auf Verteilungsleitungen.
List of International Electrotechnical Commission standards.
61343-6 Learn more about the cookies we use and how to change your settings. Depending on the signal to noise ratios, the bits can be recovered from 61334–6 difference between the power of the mark and space tones, the power of the mark tones only, or the space tones only.
Click to learn more. The most significant bits are sent first, unlike a conventional serial port. The silence and the preamble allow the receiver’s signal processing to measure the channel’s noise ratios.
IEC – Wikipedia
The physical layer is adaptive. S-FSK spread frequency-shift keying is a modulation scheme that combines some of the advantages of classical spread-spectrum modulation immunity against narrow-band interference with some of the advantages of classical frequency-shift keying FSK is low complexity.
The bytes from the low-layer packets are reformed into bytes for the higher layers. Related standards use the physical layer e. The frequencies are placed far enough apart that frequency-selective fading and narrow-band interference only blocks one of the frequencies, so the receiver can still recover all the data from the other frequency.
For example, it lets a central controller read a unit’s signal to noise ratios, and set the bit that enables a station to retransmit weak stations. IECknown as Distribution automation using distribution line carrier systemsis a standard 6134-6 low-speed reliable power line communications by electricity meterswater meters and SCADA.
This is followed by ied bytes of data, and 3 byte-times of silence. Each byte is collected into byte packets. The data from zero crossings should be collected into 8-bit bytes. Accept and continue Learn more about the cookies we use and how to change 613334-6 settings. A-XDR encoding rule Status: The high reliability comes from its reliable timing system i.
Wide area networks Networking standards. The standard’s low speed is caused by the limited number of bits per power line cycle.
IEC – MediaWiki
Take the smart route to manage medical device compliance. Electric power distribution, Electric power transmission, Electric power distribution lines, Data transmission, 61334–6 power transmission networks, Electric power networks, Automatic control systems, Control systems, Coding data conversionCodes, Data handling, Data syntax, Data transfer.
The system should be able to adjust the receiving method on each byte packet. Search all products by. You may experience issues viewing this site in Internet Explorer 9, 10 or The standard permits each zero-crossing to convey 1, 2, 4 or 8 bits, with increased sensitivity to timing as the number of bits increases.
You may find similar items within these categories by selecting from the choices below:. This page was last edited on 30 Marchat One tone is chosen for mark i. Your basket is empty. It is actually a series of standards describing the researched physical environment jec power lines, a well-adapted physical layer, a workable low-power media access layer, and a management interface.
From Wikipedia, the free encyclopedia. In multiphase power lines, a separate signal might be sent on each phase to speed up the transmission. Automatisation de la distribution a l’aide de systemes de communication irc courants porteurs. Please download Chrome or Firefox or view our browser tips.
This 61334- is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3.