[NTLK] Newton to DB9 to USB Connection Conundrum

Michael W. Arnold michael at rnold.info
Wed Jul 5 14:44:03 EDT 2017

I’m not sure.  I believe I saw something back in the archives saying I would need a null modem cable.  I tried it earlier without and it also didn’t work.

Worse, yet.  I think this little USB experiment might have burned the serial port in both my eMate and MP130.  Both Newtons will no longer connect to either of my classic Macs.  My MP2000 — which thankfully wasn’t a part of this experiment — connect to my classic Macs over serial just fine.

Anyone with any suggestions on what I’ve done?  Any way to reset the eMate and MP130?

Michael Wayne Arnold
☎️ 615.200.6464<tel:+1-615-200-6464>
🐦 @marmanold<https://www.twitter.com/marmanold>

On July 2, 2017 at 11:19:08 AM, Piotrowski Paweł (Newton) (newton at indigi.co.uk<mailto:newton at indigi.co.uk>) wrote:

Why do you use null modem adapter if FTDI cable is male and DB9 to RS have female?


> On 2 Jul 2017, at 15:15, Michael W. Arnold <michael at rnold.info> wrote:
> I hate to bother everyone for support, but I can’t figure this one out.
> I’ve got a DB9 to USB cable with the FTDI chip, a DB9 to 8p MiniDIN cable, and a null modem DB9 to DB9 between it all.
> In theory, this should work perfectly to allow my eMate to connect to NCX on macOS 10.12, but it doesn’t. Newton keeps saying there was a response from the computer.
> I’ve also tried without the null modem, and that didn’t work either. (Connect works fine, BTW, via mini DIN to mini DIN to my Quadra 630.)
> Any ideas? What am I doing wrong?
> Exact product links for details:
> https://www.amazon.com/gp/product/7564005068/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
> https://www.amazon.com/gp/product/B0194C4Z96/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
> https://www.amazon.com/gp/product/B00QUZY4L0/ref=oh_aui_detailpage_o01_s01?ie=UTF8&psc=1
> —————
> Michael Wayne Arnold
> ☎️ 615.200.6464<tel:+1-615-200-6464>
> 🐦 @marmanold<https://www.twitter.com/marmanold>
> ----------------------------------------------------------------------
> http://newtontalk.net/
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