[time-nuts] Thunderbolt and USB to RS232 converters
Javier Herrero
jherrero at hvsistemas.es
Tue Jun 24 13:13:20 EDT 2008
I've been using it with Prolific PL2303 based converters with no problem
at all (Aten brand, in my case).
Regards,
Javier
Jeroen Bastemeijer escribió:
> Dear All,
>
> More and more people are starting to play with the Thunderbolts. I
> already received mine :-) Now playing around with them.
>
> First I powered it up and connected it to the normal serial port of the
> PC. The Thunderbolt behaved fine, self survey took some time, because
> the antenna is inside a concrete building with very limited view to the sky.
>
> However, next I did a test with the same Thunderbolt but now it was
> connected to a USB to Serial converter (brand is Sweex). After
> switchinhg it off and on, I expected the same behaviour as when it was
> connected to the "real" serial port. But... it started to behave very
> strange... instead of starting a normal survey, it started disciplining
> after a couple of minutes (almanac was not even valid). The DAC-voltage
> clipped to the power rail, and the SV and AMU-fields remained "?".
> Resetting (hot, cold, factory default) didn't make any difference.
> When power cycling the unit and connecting it back to the normal serial
> port the normal behaviour returned. I assume it has something to do with
> the USB to serial converter. Is there anyone else with similar
> experience? Or who has used a USB to serial converter with succes?
>
> Thank you, best regards,
>
> Jeroen
>
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