[time-nuts] FTS-4060M/S24

[Bill Smitherman]

Bill    kd4af1 at gmail.com
To the group
Just today, received my Thunderbolt from China.  It is up and running.  Just
a simple question
for you you Thunderbolt Experts.  After reading the Trimble Manual,
download.  I still do not have an answer.  How can I tell when I have a
lock.  I desire to install an LED on one of the pins of the  db9 connector
to indicate when lock has been achieved.  I do not need to know  location
when the unit was made, GPS week and all that stuff. I am trying to keep it
simple.  Surely one of these pins go high when lock is achieved.  I just
need a simple indication of the lock status.  Perhaps I am trying to
oversimplify,  all help appreciated.  I am from the old school  of using my
Fluke Monotronics 207 Receivers to track the old Omega Stations and WWVB.
Trying to get acquainted with the new GPS Technology.

Thanks for any ideas.
BillOn 6/20/08, Björn Gabrielsson <bg at lysator.liu.se> wrote:

>
> On Thu, 2008-06-19 at 22:54 +0000, Mark Sims wrote:
> > I recently bought a FTS-4060M/S24 cesium beam unit.
> [...]
> > There are a few issues with it.  First the crystal oven monitor reading
> > stays at 5V.  The unit has an FTS-2000A OCXO.  This is basically a
> smaller
> > OCXO that is mounted on a carrier and has a small connector PCB attached
> > that converts the pinouts to match the Datum 1000 OCXO.
> > The OCXO does seem to stabilize at the proper freq.
> > All the other monitor voltages seem OK.
>
> I have a few 10.23MHz FTS2000 units. Got them running through reverse
> engineering magic. Thanks Magnus! Mine are marked "Model" 2000/S02A/S18
> and 2000/S03/S18 (400Hz offset model)
>
> How is yours marked?  (assume its a 10MHz model)
>
> Does your Cesium manual mention the pinout or the specifications for the
> OCXO? Is your FTS1000 adaptor compatible with the below pinout? Does it
> use pins 6 and 9?
>
> This is the pinout Magnus found out. Connector is "DSUB with 1 center
> coax and 10 pins", (used on Datum FRS rubidiums)
>
> J1 - 1  +28Vin
> J1 - 2  +28Vin
> J1 - 3  EFC
> J1 - 4  GNDA
> J1 - 5  0V
> J1 - 6  Unknown
> J1 - 7  28V_Return
> J1 - 8  GNDA
> J1 - 9  Unknown
> J1 - 10 +15Vin
>
> thanks,
>
>
>    Björn
>
>
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