Re: Serial line server, was Re: flexfax: DG/UX anyone?

[Leslie Mikesell <les@Mcs.Net>]

According to Nico Kadel-Garcia:
> 
> Speaking of which: Ted T'so just asked me to play with a serial line
> server board, apparently a Digiboard, on a Linux system to find booby
> traps for HylaFAX. Is there anything I should look out for?

It has been a while since I have set one of these up so I don't
know where you run into trouble with a fast pentium, but there
will be some number of ports at which you need an intelligent
processor on the ports card instead of getting an interrupt per
character (Digiboard and others make both kinds).

> And I am still looking for a good configuration file for 33.6 modems
> to handle data calls, the "Performance" modem I've been working with
> doesn't seem to cope well with data rather than fax.

This may be a flow control issue.  You need hardware flow control
working for data and some modems require software flow control for
fax.  I had good luck with the MultiTech ZDX2834's running with
hardware flow control for both.  (I think the 56K versions have
dropped the class 2 fax mode though).

  Les Mikesell
    les@mcs.com