Trailblazer modems on ULTRIX.

[George Robbins]

In article <88318 at felix.UUCP> kinley at bond.crim.ca (Darren Kinley) writes:
> Reply-to: kinley at bond.crim.ca (Darren Kinley)
> 
> 	I am desperately seeking information concerning TELEBIT Trailblazer
> modem and how to connect this modem to an ULTRIX 2.2  machine. I have 
> successfully placed 1200 and 2400 calls using tip but have not been able to 
> answer any calls. The local unix wizard tells me that the getty which is
> on the Telebits port is talking to the modem at 19200 as configured, but
> once a connection is established, the speed of the line drops to 1200 baud
> regardless of the speed at which the connection is made. If anyone can
> offer any usefull information it would be greatly appreciated. Also, any
> insight as to why and who is resetting the speed of the tty line.

There are two basic modes of setting up the trailblazer.  The simple way
requires "locking the interface rate" by setting some of those S-registers
described in the manual.  This is probably what you need to do.  You can
also allow the trailblazer to switch baud rates, but then you must use
breaks and whatnot to cycle though the speed tables.  You probably don't
need this form of self abuse.

-- 
George Robbins - now working for,	uucp: {uunet|pyramid|rutgers}!cbmvax!grr
but no way officially representing	arpa: cbmvax!grr at uunet.uu.net
Commodore, Engineering Department	fone: 215-431-9255 (only by moonlite)