At 05:10 PM 3/27/2006, Don Wilhelm wrote... >It is unfortunate that the PC world uses these DE9 connectors for RS-232, >and it is (was) a PC world implementation only, real RS-232 ports use the >DB9 or the RJ45 connectors - these are defined in the RS-232 standard, the >DE9 connector is not in the latest standard publication that I am aware of.
There is no DB-9. ITYM DB-25, but that wasn't specified in RS-232 - it was added with RS-232C. Prior to that the standard merely called for an unspecified 25 pin connector. What was once RS-232 was replaced by EIA/TIA-232, which in turn was succeeded by ANSI/EIA/TIA-723-1998 "High Speed 232 Type DTE/DCE Interface," which is active and current. The standard says the DE-9 interface shall be referred to as "ANSI/EIA/TIA-723 Alt B." In addition to the regular DB-25, there is also a 26 pin "Alt A." _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
