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- Path: sparky!uunet!spool.mu.edu!agate!darkstar.UCSC.EDU!darkstar.ucsc.edu!hermit
- From: hermit@cats.UCSC.EDU (William R. Ward)
- Newsgroups: comp.sys.cbm
- Subject: Re: need info on RS232 adapter for non-cbm modem
- Date: 3 Jan 93 03:09:26
- Organization: Computing and Telecommunications Services, UCSC
- Lines: 24
- Distribution: usa
- Message-ID: <HERMIT.93Jan3030926@am.ucsc.edu>
- References: <1993Jan1.180301.25324@cbnewse.cb.att.com>
- NNTP-Posting-Host: am.ucsc.edu
- In-reply-to: liuzzo@cbnewse.cb.att.com's message of 1 Jan 93 18:03:01 GMT
-
- In article <1993Jan1.180301.25324@cbnewse.cb.att.com>, liuzzo@cbnewse.cb.att.com (james.g.liuzzo) writes:
- ) I understand that a non-cbm modem can be used with a C64 or C128
- ) if one has an RS232 interface adapter. What is this exactly?
- ) If I had the connectors, could I fabricate such a thing myself?
- ) If so, could someone supply me with a wiring diagram?
-
- If you're electronically inclined you can make it yourself. You'll
- need a 1488 and 1489 chip to convert the power, and a pinout of the
- user port (where a Commodore-compatible modem plugs in). The rest is
- basically just wiring. You might have to convert the 9VAC signal to
- 9VDC, but I believe that signal is present on that port, so it
- shouldn't be hard if you know what you're doing.
-
- I don't have a pinout; I once did, but threw it away and bought a used
- adapter (via this newsgroup, actually). You can buy them for almost
- as cheap as the parts, and since it's kind of difficult to find a
- connector that'll plug into the user port (non-standard size), you
- might be better off going that route. I think CMD probably sells an
- adapter/cable, or flip through an old RUN or Gazette for ads.
- --
- William R Ward __o Bay View Software
- VoiceMail: +1 (408) 479-4072 _ \<,_ Internet: hermit@cats.ucsc.edu
- SnailMail: 1803 Mission St. #339 (_)/ (_) BITNet: hermit@cats.bitnet
- Santa Cruz CA 95060 USA
-