Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!watmath!clyde!burl!ulysses!allegra!mit-eddie!genrad!decvax!decwrl!pyramid!pesnta!amd!amdcad!lll-crg!caip!cbmvax!grr
From: grr@cbmvax.UUCP
Newsgroups: net.micro.cbm
Subject: Re: RS-232-C
Message-ID: <131@cbmvax.cbmvax.cbm.UUCP>
Date: Wed, 23-Apr-86 21:56:59 EST
Article-I.D.: cbmvax.131
Posted: Wed Apr 23 21:56:59 1986
Date-Received: Sat, 26-Apr-86 05:07:46 EST
References: <3045@sunybcs.UUCP> <109@cbmvax.cbmvax.cbm.UUCP> <3081@sunybcs.UUCP>
Reply-To: grr@cbmvax.UUCP (George Robbins)
Organization: Commodore Technology, West Chester, PA
Lines: 32

In article <3081@sunybcs.UUCP> ugbowen@sunybcs.UUCP (Devon Bowen) writes:
>In article <109@cbmvax.cbmvax.cbm.UUCP>,fred@cbmvax.cbm.UUCP(Fred Bowen) writes:
>
>> The Commodore C1011A card is an RS-232C terminal interface card, and has
>> been available for some time for the C64. It works also on the C128, but
>> you will have to remove its case, which interferes with the RGBI port.
>
>I think you misunderstood me (or I, you). What I'm looking for is something
>that would plug into the back of another computer that uses a standard
>RS-232C (like the TRS-80, for example) and converts this computer to a
>CBM RS-232C so that the computer could use CBM modems (because everyone
>knows how much cheaper CBM hardware is!). Any ideas? I've gotten E-mail
>from others also interested in such a device.
>
>                                   Devon E
>                                   University of Buffalo

Well, all you need to do is convert the signals from your standard EIA RS232
device back to TTL levels, then wire them into the modem, and provide a
suitable power supply.  See one of the C64 reference manuals for the pin-out.

I really can't recommend doing this, but I think a third party manufacturer
could build a product that would power and convert say 4 Commodore 1660/1670
modems.  It should go over pretty well with the BBS crowd.

Also, the 1680 Amiga Modem, when it comes out, will be a standard 1200 Baud 
Hayes compatible RS232 modem.  The priceing should be in-line with other
Commodore products, but that's up to the marketing people.  
-- 
George Robbins - now working with,	uucp: {ihnp4|seismo|caip}!cbmvax!grr
but no way officially representing	arpa: cbmvax!grr@seismo.css.GOV
Commodore, Engineering Department	fone: 215-431-9255 (only by moonlite)