Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!mit-eddie!uw-beaver!milton!djo7613@milton.u.washington.edu
From: djo7613@milton.u.washington.edu (Dick O'Connor)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: AST Premium 286 serial port troubles
Keywords: AST Premium 286, serial port, 9600 baud
Message-ID: <16394@milton.u.washington.edu>
Date: 13 Feb 91 21:19:08 GMT
Sender: djo7613@milton.u.washington.edu
Distribution: usa
Organization: University of Washington, Seattle
Lines: 20

We have two AST Premium 286 machines (one a more recent vintage "Work-
station" model, the other the old large boat-anchor model) that are
having trouble keeping up with serial port communications at 9600 baud.
Has anyone had to deal with this before?
 
We direct-connect to a line multiplexor without a modem, and have tried
ProComm and MS-Kermit alike.  Symptom is that after about a screen of display,
the leftmost characters get "eaten".  Sometimes the number eaten is 
predictable, usually it's just a hash.  Feels like either a buffer overflow
somewhere, or (related to that) the AST's can't send XOFF when their 
mouths are full, so to speak.
 
I can plop a Kaypro XT next to one of these boxes and use the same 
serial line, monitor, power source and software, and the Kaypro doesn't
lose anything.  Neither do high-speed 386 boxes, or any of our other 286s.
AST should get back to me "soon" on this, but I wondered if anyone in
netland has seen/solved this.  Yes, our distributor DID fold, in fact!  :)

"Moby" Dick O'Connor                         djo7613@u.washington.edu 
Washington Department of Fisheries           *I brake for salmonids*