Editing LonWorks (section)

== Technical details ==
Two physical-layer signaling technologies, [[twisted pair]] ''free topology'' and power-line carrier, are typically included in each of the standards created around the LonWorks technology. The two-wire layer operates at 78&nbsp;kbit/s using [[differential Manchester encoding]], while the power line achieves either 5.4 or 3.6&nbsp;kbit/s, depending on frequency.<ref>http://www.echelon.com/support/documentation/manuals/transceivers/005-0154-01D.pdf {{Webarchive|url=https://web.archive.org/web/20070927005459/http://www.echelon.com/support/documentation/manuals/transceivers/005-0154-01D.pdf |date=2007-09-27 }} PL3120/3150 transceiver data book, p5</ref>

Additionally, the LonWorks platform uses an affiliated IP tunneling standard—ISO/IEC 14908-4<ref>{{Cite web |title=IP Tunneling Protocol (International) |url=http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=50360 |access-date=2024-10-07}}</ref> (ANSI/CEA-852)<ref>{{cite web|url=http://global.ihs.com/doc_detail.cfm?document_name=CTA-852.1 |title=CTA-852.1 : Enhanced Protocol for Tunneling Component Network Protocols over Internet Protocol Channels}}</ref>—in use by a number of manufacturers<ref>http://www.lonmark.org/membership/directory/ {{Webarchive|url=https://web.archive.org/web/20190830021840/http://www.lonmark.org/membership/directory/ |date=2019-08-30 }} Directory of LonMark International Member Companies</ref> to connect the devices on previously deployed and new LonWorks platform-based networks to IP-aware applications or remote network-management tools. Many LonWorks platform-based control applications are being implemented with some sort of IP integration, either at the UI/application level or in the controls infrastructure. This is accomplished with Web services or IP-routing products available in the market.

An Echelon Corporation-designed [[integrated circuit|IC]] consisting of several 8-bit processors, the ''Neuron chip'' was initially the only way to implement a LonTalk protocol node and is used in the large majority of LonWorks platform-based hardware. Since 1999, the protocol has been available for general-purpose processors: A port of the ANSI/CEA-709.1 standard to IP-based or 32-bit chips.<ref>{{cite web|url=http://global.ihs.com/doc_detail.cfm?document_name=CTA-709.1 |title=CTA-709.1 : Control Network Protocol Specification}}</ref>