john@wa3wbu.UUCP (John Gayman) (11/03/87)
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. John -- John Gayman, WA3WBU | UUCP: uunet!wa3wbu!john 1869 Valley Rd. | Packet: WA3WBU @ AK3P Marysville, PA 17053 | Voice: (717) 957ororo(
garon@pedro.UUCP (Garon C. Yoakum) (11/11/87)
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
jmsully@uport.UUCP (John M. Sully) (11/14/87)
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. We are using two of them here at Microport on a 386 box and they seem to work just fine. They have also been tested on a 286 system where they also worked. The login script requires some futzing 'a la the old ATDT in the chat script, but other than that they drop right in. -- John M. Sully UUCP: ...!{sun | ucbvax | ihnp4}!amdcad!uport!techs Microport Systems ARPA: uport!techs@ucscc.UCSC.EDU Technical Support