Mike W8UR wrote: RS-232 has always specified a cable pinout; originally on an unspecified 25 pin connector.
----------------------------------- Okay, you made me go look. When I first encountered the RS-232 interface, IBM had not yet built the first "PC". Bob, W7AVK kindly forwarded to me a URL containing the info: http://www.interfacebus.com/Design_Connector_RS232.html#b Or http://tinyurl.com/zgnvp So the specification does contain a connector pinout for DB-9 and DB-25 connectors. That makes it all the more important to heed Don Wilhelm's observation: all DB-9's or DB-25 connectors do not carry RS-232 signals as described in the specification. One might assume a DB-9 or DB-25 does carry RS-232 signals with some assurance if it says "RS-232" next to the connector, but not when it says "AUX I/O" or anything else next to it. Ron AC7AC _______________________________________________ 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
