Buy IEC Ed. Distribution automation using distribution line carrier systems Part 6: A-XDR encoding rule from SAI Global. IEC (), Distribution automation using distribution line carrier systems. Part 6: A-XDR encoding rule: Defines a set of encoding rules that may be. Purchase your copy of BS EN , IEC as a PDF download or hard copy directly from the official BSI Shop. All BSI.
|Published (Last):||8 March 2012|
|PDF File Size:||8.88 Mb|
|ePub File Size:||17.2 Mb|
|Price:||Free* [*Free Regsitration Required]|
Automatisation de la distribution a l’aide de systemes de communication a courants porteurs. This website is best viewed with browser version of up to Ice Internet Explorer 8 or Firefox 3. Related standards use the physical layer e. The standard’s low speed is caused by the limited number of bits per power line cycle. Your basket is empty.
The high reliability comes from its reliable 63134-6 system i. Depending on the signal to noise ratios, the bits can be recovered from the difference between the power of the mark and space tones, the power of the mark tones only, or the space tones only. 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.
BS EN 61334-6:2001, IEC 61334-6:2000
One tone is chosen for mark i. The bytes from the low-layer packets are reformed into bytes for the higher layers. Each byte is collected into byte packets. Click to learn more. The first four bytes of each packet are a preamble to measure the channel’s current condition.
IEC – Wikipedia
The system should be able to adjust the receiving method on each byte packet. 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. Retrieved from ” https: It is actually a series of standards describing the researched physical environment of power lines, a well-adapted physical layer, a workable low-power media access layer, and a management interface. The most significant bits are sent first, unlike a conventional serial port.
Wide area networks Networking standards. 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. The higher link-layer strongly resembles HDLCexcept with a novel feature that allows selected stations to retransmit messages.
IEC – MediaWiki
This is followed by 38 bytes of data, and 3 byte-times of silence. The tones are chosen by utilities, not ied in the standard. From Wikipedia, the free encyclopedia. Please download Chrome or Firefox or view our browser tips.
Views Read Edit View history. Learn more about the cookies we use and how to change your settings. A-XDR encoding rule Status: The physical layer is adaptive.
You may experience issues viewing this site in Internet Explorer 9, 10 or The silence and the preamble allow the receiver’s signal processing to measure the channel’s noise ratios. In multiphase power lines, a separate signal might be sent on each phase to speed up the transmission.
Take the smart route to manage medical device compliance. Search all iev by. IECknown as Distribution automation using distribution line carrier systemsis a standard for low-speed reliable power line communications by electricity meterswater meters and SCADA. Verteilungsautomatisierung mit Hilfe von Traegersystemen auf Verteilungsleitungen.
This page was last edited on 30 Marchat Accept and continue Learn more about the cookies we use and how to change your settings. Find Similar Items This product falls into the following categories.