Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!meaddata!johnt
From: johnt@meaddata.com (John Townsend)
Newsgroups: comp.sys.handhelds
Subject: HP-48SX <--> Sun 3/80 Transfer Problems
Message-ID: <2033@meaddata.meaddata.com>
Date: 28 Nov 90 17:08:06 GMT
Sender: usenet@meaddata.com
Reply-To: johnt@meaddata.com (John Townsend)
Organization: Mead Data Central, Dayton OH
Lines: 22

I need help with some problems I'm having with getting my Sun workstation and
HP-48 to speak Kermit to each other.  I am using the HP IBM PC cable kit, and
haven't had any trouble at all on the PC.  I had to get a M-M gender bender
to connect to the Sun's ttya port.  Do I need a null modem too?  I'm told that
the Sun is wired DTE, and from the pin diagram on page 39 of J.D.'s Handbook
it appears that the HP-48 is wired DTE too (the transmit signal on pin 2 of
the DB-25 is driven by the HP-48).  However, the little success that I've had
has been WITHOUT a null modem.  That is, I have been able to send and receive
strings with XMIT and SRECV on the HP through /dev/ttya on the Sun, though I
usually lose characters going from the HP to the Sun.  Kermit, however, totally
croaks.  Frequently I get an "unable to condition line" error, and when I do
get a transfer started, it either times out or hits the retry max.  One thing
I have noticed is that the HP's buffer fills up with garbage when I attempt
Kermit transfers and doesn't get emptied.

If you have any suggestions, please let me know.

--
     John Townsend                 Internet:   johnt@meaddata.com
 c/o Mead Data Central             UUCP:       ...!uunet!meaddata!skibum!johnt
     P.O. Box 933                  Telephone:  (513) 865-7250 
  Dayton, Ohio, 45401