[time-nuts] GSyncQ GPS Evalution Kits && NTPns

Pekka Niemelä pniemel at gmail.com
Fri Apr 25 05:47:13 EDT 2008

Hi Bruce, thanks for bearing with me. :)

On 4/25/08, Bruce Griffiths <bruce.griffiths at xtra.co.nz> wrote:
> Pekka
> If you want, you can easily construct your own external RS422 to RS232
> transceiver.
> Just use a Max 232 to convert the RS232 signals to TTL/CMOS and connect
> RS422 receiver and transmitter chips to that.
> RS 485 transceivers chips can also be used instead of RS422 transmitters
> and receivers, just connect them as drivers or receivers as required.
> If you need a circuit schematic I can send you one.

Hmm, if you would have schematics that would be really great. Can I download
them from somewhere? I'm not 100% that I understand what you're saying, but
I guess the schematics talk more than thousand words. :)

The other option is ofcourse to just buy the transciever. But even in that
case I would need to drop the voltage with the max 232? That is, the 1PPS
signal that we drive into the Soekris?

Novatel also use Deutsch connectors on some of their enclosures.

Hmm, so it's an industry standard? Wikipedia doesn't know anything about it.

warm regards,
P. Niemelä

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