[time-nuts] Tymserve 2100 thinks it's 1995?

[Sean Gallagher]

Hi all,

The problem is not the 2100. It is the Trimble Ace III receivers inside 
of it. There is a company in France, Heol Design, that makes what is 
essentially a replacement for the Ace III, they call it an N024 model. I 
am currently in contact with them to see if their units will correct 
this issue. I first noticed the problem in the Datum BC635 cards and 
when I tried to go back to a 2100 is when it was confirmed for me. The 
French units are about $100 apiece and I'll keep you updated on if they 
work or not.

In other 2100 news if you revert the firmware back to it's oldest 
version (2.something) that is embedded in the 2100 it gets rid of the 1 
second leap issue. You'll lose quite a few options and functionality 
like the NIST ACTS connection, which I don't think works anyway, but 
your time will finally be right again. I did this by beginning the 
firmware update process and power cycling my machine during it. 
Basically by screwing it up you can make it better.


Sean Gallagher

On 5/4/2015 10:09 PM, Robert Watzlavick wrote:
> Mine was fine until I power cycled it :(   I can confirm that even 
> with the v4.1 firmware, power cycling it causes the date to revert 
> back to 1995.  A software restart as listed below seems to restore the 
> correct date for awhile but it eventually reverts back to the wrong 
> year.  Maybe some smart guy can reverse engineer the binary and patch 
> it.  It must have already been patched once by the vendor since it 
> seems unlikely the GPS firmware would have been updated.
>
> Luckily I have an ET-6000 so I can always feed IRIG-B from it into the 
> TS-2100 until it too exhibits the rollover bug.  After that runs out, 
> I can use the 1 PPS input.
>
> -Bob
>
> On 05/04/2015 01:23 PM, Mark Strovink wrote:
>> Bob Martin<k6rtm at ...>  writes:
>>
>>> Additional information --
>>>
>>> Power cycling (leaving it off for about 5 minutes) didn't do any good.
>>>
>>> Once at the correct time/date, it bounces back to 1995 at about 30 
>>> seconds
>> after the hour (now to Sep 18, 1995).
>>> --------------------------------------------
>>>
>>> My Tymserve 2100 gps unit (Rev 4.1) thinks it's 1995 -- September 
>>> 17, 1995.
>>>
>>> But a restart (connect via telnet and give the commands util restart)
>> brings it back to the correct time and
>>> date -- for a while? I haven't caught it dropping back, so i don't 
>>> know if
>> it's doing this on the hour, after an
>>> hour, or what, but I noticed it last night, and I've restarted it a few
>> times today.
>>> Any clues?
>>>
>>> I know about the off-by-a-second issue with the pending leap second. 
>>> This
>> one is more interesting!
>>> So far I've just been issuing software restarts. The next time I'll 
>>> power
>> cycle the sucker and see if that
>>> does any good.
>>>
>>> GPS signal isn't the issue; the 2100 shares an external GPS antenna 
>>> with
>> my Thunderbolts through a
>>> Symmetricom 58536A GPS splitter, and the Thunderbolts are as happy as a
>> Thunderbolt can be.
>>> cheers
>>>
>>> bob k6rtm
>>>
>>>
>> What a great way to start a Monday: phone call that the entire domain 
>> was
>> back in 1995.
>>
>> The good news: Tymserve units will keep the correct date in Free mode.
>>
>> GPS handling, not the GPS signail, is the problem.  The GPS unit is 
>> rolling
>> the date over to its initial date once the date is past May 2 or 3,
>> 2015.
>>
>> The bad news: Tech support said the company will not be providing a 
>> fix for
>> a product 5 years past end of support.
>>
>>
>>
>>
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>
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-- 
Respectfully,


Sean Gallagher
Malware Analyst
571-340-3475