One thing you have to watch for is the cable length from PI to the DSY-Box. If
you dont have linedrivers installed, the length should be kept short, say no
more then 80cm or so. I had lots of trouble when hooking up the new Paccom 56k
with a cable that worked fine with two DSY-homebrew boxes, but gave all sorts
of errors with a Paccom without linedrivers installed.
A second hint is the old PI-card had trouble with the BUS-clock, which i think
is gone with the new
PI2-card, but am not shure, as the hardware has not changed very much in
delaying the IO-ack signals.
Ok, thats my coin.
73 de DK8GD
Rich Mulvey wrote:
> Hi All:
>
> I currently have a Linux 2.0.33 box that has AX.25 working for quite a
> while with a KPC-9612. I recently installed a PI/2 card for use with a
> WA4DSY 56K modem.
>
> The PI2/DSY combo works, but I'm plagued by overrun errors when I attempt
> to ftp any files of significant length to/from a JNOS system. I've set the
> MTU from 2088 to 1024 to 256 to 236, and it still occurs. It seems like
> the two boxes don't negotiate MTU correctly. ( The overrun error message
> indicates that the packet length is, for example, 286 when the MTU is set
> at 256. )
>
> Any ideas? Comments?
>
> Thanks,
> - Rich
>
> --
> Rich Mulvey
> http://mulveyr.roc.servtech.com
> Amateur Radio: aa2ys@wb2wxq.#wny.ny.usa
-- K.E. Ebel E-Mail sijuytt@host-ip146-251.crowley.pl DK8GD Phone +49 2204-43-363 Fax +49 2204-43-833 German language WWW http://www.ampr.de