Re: [time-nuts] Thunderbolt Serial Port Shutdown

[Artek Manuals]

On 3/20/2016 2:10 AM, Dave Brown wrote:

Are there any circumstances when the Thunderbolt serial port is disabled
by firmware?  My TB runs 24/7 but stopped the night before last for no
apparent reason.   I only discoverd this when I checked Lady Heather
early yesterday.(19 March) LH had stopped with a 'no data' warning late
on the 18th Feb. I initially restarted LH but to no avail, then powered
off the Thunderbolt briefly-again to no avail. I then left it powered
off for over 24 hrs and restarted it around mid-afternoon today (20
March) and now, after about four hours running normally, it seems like
all is back to normal. Just running Tboltmon at present but will go back
to LH later tonight.
DaveB, NZ


DaveB

If I read this correctly . You restarted the program and you power 
cycled the T-Bolt ?


What does your serial computer interface look like? is it an older style 
dedicated DB9 port on the computer or are you using a USB/Serial interface?


. If this occurs again I would also try rebooting the computer  before I 
power cycled the T-Bolt


Dave
NR1DX

--
Dave
manu...@artekmanuals.com
www.ArtekManuals.com

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Re: [time-nuts] Thunderbolt Serial Port Shutdown

[Tom Van Baak]

Dave,

Make sure your -12 volt supply is valid. It's used by the UART. Anything from 
-7 to -12 should be ok.

Here's the wiring diagram:

http://www.leapsecond.com/pages/tbolt/power.htm

/tvb

- Original Message - 
From: "Dave Brown" 
To: "Discussion of precise time and frequency measurement" 
Sent: Saturday, March 19, 2016 11:10 PM
Subject: [time-nuts] Thunderbolt Serial Port Shutdown


> Are there any circumstances when the Thunderbolt serial port is disabled by 
> firmware?  My TB runs 24/7 but stopped the night before last for no apparent 
> reason.   I only discoverd this when I checked Lady Heather early 
> yesterday.(19 March) LH had stopped with a 'no data' warning late on the 
> 18th Feb. I initially restarted LH but to no avail, then powered off the 
> Thunderbolt briefly-again to no avail. I then left it powered off for over 
> 24 hrs and restarted it around mid-afternoon today (20 March) and now, after 
> about four hours running normally, it seems like all is back to normal. Just 
> running Tboltmon at present but will go back to LH later tonight.
> DaveB, NZ
> 
> 
> 
> 
> 
> ___
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Re: [time-nuts] Thunderbolt Serial Port Shutdown

[Mike Naruta AA8K]

I have seen something similar with one of my Trimble 
Thunderbolts that I got through this group.  After weeks of 
operation, the serial port stops responding and a power-cycle 
has it communicating again.


Firmware A002206.G1  Rev E

Running on OpenHPSDR LPU analog power supply that gets 13.6 
volts from a pair of 6 volt golf cart batteries in series that 
are charged from AC mains.


Serial port is normally disconnected; attached to MS Windows PC 
with Lady Heather when I am interested in data.


I bought a third Thunderbolt on eBay and it does not fail.  The 
second of the two Thunderbolts I got through this group in 2008 
does not fail either (same firmware).



On 03/20/2016 02:10 AM, Dave Brown wrote:

Are there any circumstances when the Thunderbolt serial port is
disabled by firmware?  My TB runs 24/7 but stopped the night
before last for no apparent reason.   I only discovered this when
I checked Lady Heather early yesterday.(19 March) LH had stopped
with a 'no data' warning late on the 18th Feb. I initially
restarted LH but to no avail, then powered off the Thunderbolt
briefly-again to no avail. I then left it powered off for over
24 hrs and restarted it around mid-afternoon today (20 March)
and now, after about four hours running normally, it seems like
all is back to normal. Just running Tboltmon at present but will
go back to LH later tonight.
DaveB, NZ



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Re: [time-nuts] Thunderbolt Serial Port Shutdown

[Bob Camp]

Hi

Check the solder joints on the 9 pin serial connector. Your TBolt would not be 
the first to come back to live after a questionable joint on the PC board was 
touched up.

Bob


> On Mar 20, 2016, at 2:10 AM, Dave Brown  wrote:
> 
> Are there any circumstances when the Thunderbolt serial port is disabled by 
> firmware?  My TB runs 24/7 but stopped the night before last for no apparent 
> reason.   I only discoverd this when I checked Lady Heather early 
> yesterday.(19 March) LH had stopped with a 'no data' warning late on the 18th 
> Feb. I initially restarted LH but to no avail, then powered off the 
> Thunderbolt briefly-again to no avail. I then left it powered off for over 24 
> hrs and restarted it around mid-afternoon today (20 March) and now, after 
> about four hours running normally, it seems like all is back to normal. Just 
> running Tboltmon at present but will go back to LH later tonight.
> DaveB, NZ
> 
> 
> 
> 
> 
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
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