[time-nuts] Help needed: Jupiter-T TU60-D120

Richard H McCorkle mccorkle at ptialaska.net
Mon May 11 17:23:30 UTC 2009


Lasse,

If you are getting a Message ID 1180 at power-on you are in Navman bin
mode and the EEPROM power-on default has been set to this mode. You need
to send Message ID 1331 using LabMon to set it back to Motorola protocol
before TAC32 can talk to it.

Richard


> I got a Jupiter-T TU60 off eBay and my intentions are (was) to get a
> diciplined oscillator running.
> Somehow I expected it to be pretty similar (command wise) to a TU-30
> wich is up and running here, but must have missed the information that
> it starts in Motorola Bin??
>
> My TU60 will just say "ff 81 9c 04 01 00 00 00 64 79 00 00 00 00"  at
> power-up (Message ID 1180) once, then nothing.
> After installing TAC32 (demo) yesterday I managed (don't ask me how) get
> the uint running, everything looked OK,  I then wanted to put it inot
> Navman Bin mode. This should be safe as according to datasheet as it
> will revert to Motorola commands when cycling the power. After trying
> @@Wb, but nothing from Labmon/WinLabmon, and  now TAC32 cannot get in
> contact with the GPS,
> I let the GPS be off power over night but it sill refuses to connect to
> TAC32.
>
> Have I put my Jupiter in a mode that I cannot revert? It still reports
> the MessageID 1180 at power-on.
> Or was I just plain lucky once to somhow fool TAC32 to get the Jupiter
> to run?
>
> Any hints or comments are most welcome!
>
> /Lasse
>
>
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