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From: garon@pedro.UUCP (Garon C. Yoakum)
Newsgroups: comp.dcom.modems,comp.unix.questions
Subject: Re: Telebit Trailblazer on Microport
Message-ID: <127@pedro.UUCP>
Date: Wed, 11-Nov-87 02:01:43 EST
Article-I.D.: pedro.127
Posted: Wed Nov 11 02:01:43 1987
Date-Received: Sun, 15-Nov-87 20:52:00 EST
References: <177@wa3wbu.UUCP> <122@pedro.UUCP>
Organization: An As Yet Unnamed Public System
Lines: 35
Summary: Telebit TrailBlazer expoeriences with MicroPort V/AT
Xref: mnetor comp.dcom.modems:1192 comp.unix.questions:4915

In article <177@wa3wbu.UUCP>, john@wa3wbu.UUCP (John Gayman) writes:
> 
>     Is anyone currently using one of the new Telebit Trailblazer modems
> successfully with Microport Sys V/AT UNIX ?  Curious if this operating
> will handle them.
> 

Recently, I have read many articles asking about the Telebit TrailBlazer
modem on MicroPort V/AT systems similar to the one above.

Following, is a summary of my experience with using the TrailBlazer
on MicroPort systems.

    1 - Make sure you have modem firmware release 3.0  Without it, a couple
        of bothersome problems occur.  First, if you want high-speed
        operation, then low speed modems time out before the TrailBlazer gets
        to their speed.  Second, UUCP, XMODEM and other block type transfers
        have serious time-out problems because the TrailBlazer waits for a
        full buffer before sending data.
    2 - MicroPort V/AT doesn't handle 19.2 connections to the modem very
        successfully.  However, 9600 baud works fine.
    3 - MicroPort V.3/386 does handle 19.2 wonderfully.
    4 - The TrailBlazer seems succeptable to line noise at 2400 & 1200.

Those are the worst things I have experienced with TrailBlazers.  Currently,
I'm running modem Firmware R3.0 on MicroPort's V.3/386 and have not
experienced any problems.  The TrailBlazer answers at 2400/1200/300 and then
high-speed.  Thereby allowing low-speed and high-speed modems to login in
without timing out.  In addition, it is set up to work with block orientated
protocols so it doesn't time out after each block.
 
I welcome other point's of view, and can be reached through USENET or
directly at:  pedro -> (801) 277-0272

- Garon