[time-nuts] Did my Tbolt die ?

Chris H timenuts at archnetnz.com
Sat Jul 17 10:06:45 UTC 2010


How do you find the latency on a USB to Serial converter?

I think a physical port is a little better at not changing than a
'virtal' port :)

On Sat, 2010-07-17 at 19:17 +1000, Neville Michie wrote:
> I have had problems with TBolts on PCs. The COM port assignments seem  
> to be a bit volatile,
> plug in a different mouse or other user and you may find the COM port  
> has been assigned to it.
> I have never been able to confidently cope with this problem, I just  
> keep hacking the
> system and sooner or later I get the COM port right with the right  
> settings and all is well.
> There seem to be up to 3 layers to get right.
> This may be because I use USB to serial converters or just be  
> inherent to the later Windows OS.
> cheers, Neville Michie
> 
> On 17/07/2010, at 5:02 PM, Adam Feigin wrote:
> 
> > After rebooting one of my servers, I noticed that I was no longer
> > getting information from my Thunderbolt. Low and behold, it really  
> > seems
> > to be no longer supplying TSIP packets on the serial port. The PS is
> > okay, and the PPS and 10Mhz outputs also are working. Its just the
> > serial output which seems to be broken. Connected it directly to a PC,
> > and tried with both Heather and Tboltmon. Heather says No COM1 Serial
> > Port data seen, and Tboltmon shows data being sent, but nothing being
> > received. Even tried a factory reset via Tboltmon, to no avail.
> >
> > Have no idea why it might have stopped working.  Any suggestions ?  
> > TIA.
> >
> >
> >
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