RS-485: Imported from Wikipedia (overwrite)

2026-05-03T13:37:19Z

Imported from Wikipedia (overwrite)

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{{Short description|Network protocol for building automation}}
'''BatiBus''' was a network protocol for [[building automation]] that was introduced in 1989 and has since been succeeded by [[KNX (standard)|KNX]]. It was a relatively simple low-cost [[Communication protocol|protocol]] that did not rely on dedicated [[Integrated circuit|chips]].<ref>{{Cite web|url=http://www.cwct.co.uk/ibcwindow/ibc/fieldbus/batibus.html|title=BatiBUS|website=Centre for Window and Cladding Technology|access-date=2018-07-07|archive-date=2018-12-04|archive-url=https://web.archive.org/web/20181204121121/http://www.cwct.co.uk/ibcwindow/ibc/fieldbus/batibus.html|url-status=dead}}</ref>

The system was run by the BatiBus Club International (BCI),<ref>{{Cite web|url=https://uia.org/s/or/en/1100045659|title=BatiBus Club International|website=Union of International Associations}}</ref> which was founded by the Swiss company [[Landis+Gyr|Landis & Gyr]] and the French companies AIRELEC, [[Électricité de France|Electricité de France]] and [[Schneider Electric|Merlin Gerin]] (who originated the concept). Predominately used in France and captured by French Electrical Standard [[Liste de normes NF|NF C 46620]], it provided layers 1, 2 and 7 of the [[OSI model]]. Approximately 500,000 BatiBus network units were installed, mainly in France.

BatiBus communicated over [[twisted pair]] lines and in [[Topology (electrical circuits)|topologies]] that could be divided into several segments. Each segment was powered with a 15 volt power supply rated at 150 milliamps. A device ([[Node (networking)|node]]) could be reached at one of 240 possible addresses. In addition, 16 group addresses could be established under which all nodes in a group could be reached. The nodes avoided data collisions via [[CSMA/CA]]<ref>{{cite web |title=BatiBus |url=https://www.kunbus.com/batibus.html |access-date=2021-09-10 }}{{Dead link|date=August 2025 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> and had [[Flow control (data)|data flow controls]]. The maximum [[Bit rate|data transfer rate]] was 4800 [[Bit rate|bits/s]].<ref>{{Cite book|title=Building Energy Management Systems: An Application to Heating, Natural Ventilation, Lighting and Occupant Satisfaction|last=Levermore|first=Geoff|publisher=Routledge|year=2013|isbn=9781135812089|pages=101}}</ref>

== References ==
{{Reflist}}

[[Category:Network protocols]]
[[Category:Building automation]]

{{Automation protocols}}

{{compu-network-stub}}

BatiBUS - Revision history

RS-485: Imported from Wikipedia (overwrite)