[time-nuts] FE-5682A coming, any info?

[paul swed]

I would agree that it sounds like you have a -48 telco unit. Thats pretty
easy to do as some form of an option or alternate. But I have no proof.
Regards
Paul

On Wed, Nov 21, 2012 at 7:28 AM, Peter Bell <bell.peter at gmail.com> wrote:

> I'm not familiar with that unit, but the pinout appears to match the
> Efratom LPRO-101 with the exception of the power supply.
>
> On the LPRO, pin 8 is the -ve side of the 24V supply and pin 10 is the
> +ve side.  The "19V to 32V, 24V nominal" spec also matches the LPRO.
>
> It's possible that there is more than one variant - one with a +24V
> supply to match the LPRO and another with a -48V supply for telecom
> applications.
>
> Regards,
>
> Pete
>
>
> On Wed, Nov 21, 2012 at 5:50 PM, Fabio Eboli <FabioEb at quipo.it> wrote:
> > Hello,
> > I have a pair of FE-5682A coming,
> > not that I need them, but I had flat
> > shipping from the seller freakyflickers
> > on ebay fro another item, I was asked 14USD each.
> >
> > I'm a bit confused by the pinout on
> > the datasheet:
> >
> http://www.ko4bb.com/Manuals/05)_GPS_Timing/FEI/FE-5682A_Datasheet_REVB.pdf
> >
> > The pinout:
> > 1 RF out
> > 2 RF RTN (Chassis GND)
> > 3 DC ISOL RF RTN
> > 4 CHASSIS GND
> > 5 Lamp Volts
> > 6 BITE OUT
> > 7 EXT. C-FIELD V adj.
> > 8 -48V RTN
> > 9 CRYSTAL V MON
> > 10 POWER -48V
> >
> > a) power supply:
> > On the specs it reports
> > "Input Voltage Range +19 TO +32Vdc"
> > but the pinout reports pins 10 "POWER -48V" and 8 "-48V RTN"
> > how is supposed to be powered?
> >
> > b) pins 1 and 2 seem self explanatory, but
> > pin 3 "DC ISOL RF RTN" what should mean?
> > Should I connetc it to ground (or any reference I have)?
> >
> > c) pins 5 and 9 are monitors for working voltage of
> > lamp and VCXO, am I correct?
> >
> > When I will have the units here I'll open them up and
> > post some pics.
> >
> > Fabio.
> >
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> >
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