From: c8922369@jupiter.newcastle.edu.au (Leon James Garde)
Subject: Re: Hi-Speed Modems and //c
Organization: Uni of Newcastle, Australia
Date: Wed, 18 Nov 1992 13:34:07 GMT

c8922369@jupiter.newcastle.edu.au (Leon James Garde) writes:

>dratzlaf@nyx.cs.du.edu (Norby) writes:


>>Since it seems that high-speed modems require hardware handshaking to
>>operate properly, am I correct in assuming my //c will not properly handle
>>a 9600 bps modem?  Ya know, with my crippled little 5-pin serial port and
>>all...
>Now, some //c's dont handle  > 2400 because of an internal hardware
>problem, but I assume you will be able to.

Hardware hand shaking can be a problem, but there is a signalling method
in a sense, empoyable. set the modems dsr to follow the recieved data,
and have dsr connected to dcd on the 5-pin. Kermit, and others, use
dcd as a dsr signal ... which implies data incoming, and set about
recording the incoming into a buffer, to process when the burst stops.
because there is no cts, or rts, (or real dcd) there can be problems with 
continuous data, but a good terminal/transfer program can handle it.
See below for the ftp'able (try mail ftp ! ) terminal programs !.
>>--
>>    |\  |            Internet: dratzlaf@nyx.cs.du.edu     
>>    | \ |               GEnie: D.RATZLAFF1                
>>    |  \| orby                                          



Myth .. all myth .... I use v42bis 9600 bps connections all the time with

my //c. So it can be done ... I'll give a list of software I've tried.
Most shareware, some are public domain. Kermit is widely available,
and reccomended as it never hangs, crashes, and always available
or kermit transfers. AGATE recommended for high speed transfers.
(Agate handles 1k packets, and 20k disk accesses.and also falls back to
smaller packets, very nice :) )  I should pay its shareware fee. Do you
people accept Aussie dollars ?

KERMIT   :  best vt100, good for unix, but keypad/function keys i havent worked
	    out pagination is neccasary, even ls loses characters at that speed
	    buts that common for all speeds above 4800 ...
	    19200 max, but kermit file transfer is always slow.
	    PACKET size is FA   (thats in hex   :) )
            cntrl-g is annoying as a buzz, due to interrupts.
Zlink.  : 9600 (higher doesnt work).
	  Xmodem useful. ..  Zmodem would be better :) 
	 : terminal emulation good, vt220 keys useful..
 AGATE   : 9600 only (only goes to 14400). Zmodem :) (receive only :( ),
 	  crashes whilst emulating vt100, apparently only on //c's :(
 Talkischeap : Works ok. 4800 maximum. Apparently set up to handle all sorts
             : of terminals, but doesnt quite manage compatibility with
 	    : the BSD 5 I connect to ...Could not work the file transfer.
 	    : file transfer is ymodem or kermit ?
 DCOM (dont remember full name) : large number of graphics cards, serial cards,
 modem command sets, (large for an apple 2 ) , no baud control :( 
 no file transfer ? :( , no emulation , or is it vt100 and my adversion
 to reading manuals leaves me ignorant of its capabilities ?

 Comm.system  : no emulation, couldnt work file transfer. 4800 max ?

 ATP   : havn't unpacked it yet. executioner is such a pain, compared
         to binscii/shrinkit (I hadnt found stripexec yet !! )



 Are there any more ? I want to have a look at them all, 
 I'm not interested in mainstream commercial ones, I am in a country  town !
 in OZ ! :)


 leon
Newsgroups: comp.sys.apple2