[comp.sys.sgi] Access IRIS from PC problem

naiming@eng.umd.edu (Naiming Shen) (04/11/91)

I use my  PC as a terminal to access the IRIS workstation through
a null modem cable to connect both serial ports. The software I use
on PC is procomm plus. When I try to logon to IRIS within procomm,
I get strange characters in first 2-3 minutes(if I keep hitting Enter).
then suddenly the "IRIS Login" prompt comes out. After that the PC terminal
works fine within the day(even I get off then get on procomm again).
I'm wondering if there is a sleep function built in the serial communication
on IRIS? if this is true, why should it be there?

--
*****************************************************************************
  Naiming Shen
  naiming@bagend.eng.umd.edu
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vjs@rhyolite.wpd.sgi.com (Vernon Schryver) (04/16/91)

In article <1991Apr11.024102.24895@eng.umd.edu>, naiming@eng.umd.edu (Naiming Shen) writes:
> 
> I use my  PC as a terminal to access the IRIS workstation through
> a null modem cable to connect both serial ports. The software I use
> on PC is procomm plus. When I try to logon to IRIS within procomm,
> I get strange characters in first 2-3 minutes(if I keep hitting Enter).
> then suddenly the "IRIS Login" prompt comes out. After that the PC terminal
> works fine within the day(even I get off then get on procomm again).
> I'm wondering if there is a sleep function built in the serial communication
> on IRIS? if this is true, why should it be there?


This sounds like the PC is talking to the IRIS at a speed slower than
9600.  Try changing the gettydefs tag on the appropriate line in /etc/inittab.
See the inittab(4), gettydefs(4), getty(1m), and uugetty(1m) man pages.



Vernon Schryver,   vjs@sgi.com

cohen@brodmann.iaf.uiowa.edu (04/16/91)

In article <97498@sgi.sgi.com> vjs@rhyolite.wpd.sgi.com (Vernon Schryver)
writes:
>In article <1991Apr11.024102.24895@eng.umd.edu>, naiming@eng.umd.edu (Naiming
Shen) writes:
>......
>This sounds like the PC is talking to the IRIS at a speed slower than
>9600.  Try changing the gettydefs tag on the appropriate line in /etc/inittab.
>See the inittab(4), gettydefs(4), getty(1m), and uugetty(1m) man pages.
>


Is there a way to make a 210 address the com ports at higher speeds than 9600? 
I have Macs and DOS machines that can do 38400, and that
would help alot with some serial transfers that happen (when one isn't rich
enough for a local ethernet, or boards for all of our boxes).
Thanks
.