Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.
PHY layer ethernet
See SoftwareDefinedRadio for Ethernet phy layer development by Ettus.
optical switching networks http://www.amazon.com/Optical-Switching-Networks/dp/0521868009/ref=pd_sim_b_1
Passive optical network
Serial latency: how many devices? Up to 32 devices in a daisy-chain can be sensibly deployed in an industrial setting. Theoretically there could be dozens of device deployed in a chain through use of store and forward technology ¨C used by both daisy-chain devices and standard Ethernet switches. This assures that each packet is checked for accuracy before being forwarded on the network. The cost of that accuracy is 20-40¦Ìs latency for the average automation protocol message passing through each device. This means that the total time it takes for a message to travel from the first device in a chain of 32 to the last device would be less than 1.3ms absolute worst case.
http://www.hardforum.com/showthread.php?p=1033085451 Hardware forum
http://www.freepatentsonline.com/6240082.html routers for daisy chained components
http://www.windowsbbs.com/hardware/32244-can-routers-daisy-chained.html 4 switches will result in latency
* http://www.tomshardware.com/forum/19527-42-switch-question-daisy-chain-home * comp.dcom.lans.ethernet