[time-nuts] Thunderbolt serial port

[WB6BNQ]

Brian,

Have you measured the voltages with a scope to see if it may not be a compliance
problem ?

Bill....WB6BNQ

"bjones0 at mindspring.com" wrote:

> Nic -   I have tried several of each... and even tried using the breakout
> box to create a crossover/null modem but no luck.
>
> Brooke -
>         Thanks for the insight.  I will tear in to it this weekend and see what
> I can find.
>
> Thanks.
>
> -Brian
>
> On Fri, 2009-02-20 at 15:33 +1100, Nic McLean wrote:
> > Are you using a straight through or crossover serial cable?
> > Nic
> >
> > -----Original Message-----
> > From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> > Behalf Of Brooke Clarke
> > Sent: Friday, 20 February 2009 2:35 PM
> > To: Discussion of precise time and frequency measurement
> > Subject: Re: [time-nuts] Thunderbolt serial port
> >
> > Hi Brian:
> >
> > There have been a small number of problems related to poor solder joints on
> > U9
> > (RS-232 chip) or the serial connector. see:
> > http://www.prc68.com/I/ThunderBolt.shtml#Maint
> >
> > Have Fun,
> >
> > Brooke Clarke
> > http://www.prc68.com
> >
> > bjones0 at mindspring.com wrote:
> > > I'm tired of banging my head against the wall so I think it is time to
> > > ask.. Is there a way to test if the serial port on the Thunderbolt
> > > works?  I know the Thunderbolt itself powers up and works (I get a
> > > 9.9999978 Mhz signal out of the 10Mhz output when it is on) but I have
> > > been unable to talk/listen to it in Windows (tboltmon or Lady Heather)
> > > or in Linux (even looking at the raw serial port state).  I stuck my
> > > breakout box on the line but I get no lights on the Thunderbolt side.
> > >
> > > Thanks,
> > > Brian
> > >
> > >
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