Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!decwrl!sun!pitstop!sundc!seismo!uunet!mcvax!hp4nl!uva!kim!dik
From: dik@uva.UUCP (Casper H.S. Dik)
Newsgroups: comp.dcom.modems
Subject: Re: Telebit stuff
Message-ID: <641@uva.UUCP>
Date: 15 Feb 89 11:51:47 GMT
References: <64400002@uicbert.eecs.uic.edu>
Sender: news@uva.UUCP
Reply-To: dik@uva.UUCP (Casper H.S. Dik)
Organization: Faculteit Wiskunde & Informatica, Universiteit van Amsterdam
Lines: 51

In article <64400002@uicbert.eecs.uic.edu> solworth@uicbert.eecs.uic.edu writes:
>	Having received a pair of telebit modems, I have been trying
>them out with kermit and tip.  With kermit, between a pair of Sun 3/50s,
>I am unable to get an effective baud rate over 5000 transmitting
>pre-compressed files.

>	Settings are as follows:
>
>Kermit:
>	at &f s51=5 s52=1 s54=3 s110=0 s111=0 s53=3 s66=1 s55=3 s45=255 q6 &w
					  ^^^
Use a Kermit protocol support setting of s111. (e.g. s111=10)

This will make create communications like

Sun <- kermit protocol -> telebit <- PEP -> telebit <- kermit -> Sun

With this setting (set s110=1 to use compression) I get an effective
baudrate (using kermit) > 10000. (using a PC & a SUN)

Note your two kermits are no longer talking the protocol
to each other but are talking to the telebits instead.


Many people seem to think that switching on the kermit protocol
support requires a special version of kermit, or a special program.

Or they think that the modem will start transmitting kermit packets.

(Well I did anyway)

>Tip:
>	at &f s51=5 s52=1 s54=3 s110=1 s58=3 s53=3 s66=1 s55=3 s45=0 q6 &w

Tip doesn't support binary transmissions.
When tip gets a take command it sends the command
cat filename ; echo ^A.
As soon as the receiving end of tip sees a ^A it stops sending the
characters to the file, and starts sending them to your screen.

Try sending over uuencoded files instead.


>Jon Solworth

Hope this helps,
--cd
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Casper H.S. Dik
University of Amsterdam     |		      dik@uva.uucp
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