Subject:
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Re: Anyone using Mac beige G3
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Newsgroups:
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lugnet.robotics.rcx.nqc
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Date:
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Fri, 2 Feb 2001 02:00:37 GMT
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Viewed:
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2406 times
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In article <kevin-no-spam-bhayes-F449FB.23282831012001@lugnet.com>,
Kevin Hayes <kevin-no-spam-bhayes@home.com> wrote:
> Hi all,
>
> I having trouble connecting a PowerMac G3 (beige model, 233MHz) to the
> IR tower. I've tried NQC, MacNQC but keep getting "Error: no response
> from IR tower". I've also tried ZTerm to see if I can get an echo back.
>
> The Green LED in the tower lights up when trying to connect so I know I
> can transmit properly, but it seems I can't receive.
>
> I've heard reports of people using older Macs with NQC but nobody with a
> beige G3. My QuickCam also no longer works in my beige G3 but did in
> older Macs so I wonder if Apple changed the serial ports.
The serial ports weren't changed in a major way (still RS-422, etc), but
there could have been subtle changes to the driver/receiver that would
cause problems when hooked to marginal RS-232 devices (such as the IR
tower).
Fred Martin reported some problems with certain flavors of Mac hardware
that were apparently fixed by using a serial extension cable. I don't
recall if beige G3 was a problem model or not.
Make sure that your adapter cable grounds the RxD+ line. I think some
adapters leave this pin unconnected, which can lead to very marginal
behavior.
Dave
--
reply to: dbaum at enteract dot com
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Message is in Reply To:
 | | Anyone using Mac beige G3
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| Hi all, I having trouble connecting a PowerMac G3 (beige model, 233MHz) to the IR tower. I've tried NQC, MacNQC but keep getting "Error: no response from IR tower". I've also tried ZTerm to see if I can get an echo back. The Green LED in the tower (...) (24 years ago, 1-Feb-01, to lugnet.robotics.rcx.nqc)
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