i'm guessing, but it sounds like it could be a hand shaking problem. re: running the hp gear off of rs-422, how are you converting? normally if you do it right it works fine, as with an rs-232 modem (which of course they all are, at least all the "standard" modems). most apple modem cables do have the handshaking correctly wired (required for faster modems). i did once find (and i don't know where, i found the problem much later) on the web a cable pinout for this, that was wrong, but worked most of the time, until it damaged the port in my lc475 and then refused to work at all with replacement chips (different brand, but pin compatible) until i finally checked the cable and found the problem, i think the "ground" line on the rs-232 actually wound up tied to one of the handshake lines and it just happened to work anyway, probably due to a static protection diode or something.
KL�S wrote: > > After resurrecting my Apple II and IIe I decided to try to use the II as a > terminal to talk to a piece of electronic test equipment on my workbench via > RS-232. I'm using a Videx PSIO serial/parallel card whose specs say it can > communicate up to 19.2K. When I attach it to the test gear (a HP Z3801A GPS ------------ -- philip stortz -- To be nobody but yourself when the whole world is trying its best night and day to make you everybody else is to fight the hardest battle any human being will ever fight. -- ee cummings -- Apple2list is sponsored by <http://lowendmac.com/> and... / Buy books, CDs, videos, and more from Amazon.com \ / <http://www.amazon.com/exec/obidos/redirect-home/lowendmac> \ Support Low End Mac <http://lowendmac.com/lists/support.html> Apple2list info: <http://lowendmac.com/lists/apple2.html> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/apple2list%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
