Talk:Token bus network
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Withdrawn?
[edit]A previous version of this article said that the standard has been withdrawn. This does not appear to be the case. The IEEE site [has a copy of the 802.4 standard https://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=5097] with no reference to withdrawing it. It is quite possible that I've missed something, so please revert if that is the case, but also please cite a reliable source indicating that the standard has been withdrawn, not just that the WG has been disbanded. superlusertc 2012 November 28, 10:39 (UTC)
- Standards 802.4
- 802.4-1990 - Standard for Token-Passing Bus Access Method and Physical Layer Specifications Date of Publication:Oct. 15 2011; Status: Withdrawn
- The 1992 and 1997 supplements also say that they've been withdrawn, though you can still find them archived on that site. I'll revert your edit. – Wbm1058 (talk) 16:50, 7 November 2013 (UTC)
Development order
[edit]Refs and IEEE numbering lead me to believe that Token Bus was developed before Token Ring. Content in the lead implies that Token Bus was intended to be an improvement on Token Ring. This may be wrong. ~Kvng (talk) 15:45, 25 January 2021 (UTC)
- 802.4 Token Bus and 802.5 Token Ring were developed near-simultaneously by different factions of the 802 committee (manufacturing automation interests for 802.4, IBM for 802.5). 802.4 was based on combining the bus network idea popularized by 1970s Ethernet (the pre-802.3, 3 mbit Xerox PARC version), the token passing model seen in 1970s early token ring networks (like the Cambridge Ring), and broadband instead of baseband signaling. Ehrbar (talk) 23:37, 15 June 2022 (UTC)