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

[paul swed]

Measure both pins and see if 1 is grounded.
Telco is indeed -48V. So I would expect hopefully to see pin 8 at close to
0 ohms. If so then the plus of the 48 V would connect here and the label
is explicit.
But what I have run into is that nothing connects to ground and as such
whats minus is a guess. So at that point if you can take a cover off, look
at the electrolytic caps that are sure to be across those 2 pins. Confirm
the actual plus and minus. May be good to do this no matter what. I hate
smoke.
Regards
Paul

On Wed, Nov 21, 2012 at 9:10 AM, Fabio Eboli <fabioeb at quipo.it> wrote:

> Thank you, Peter and Paul.
> Now I see that the pinout is almost identical
> to LPRO-101, the only difference are pins
> 8 and 10 for power supply.
> That's nice, I like the external C-Field control,
> and monitor voltage for lamp, they can be useful.
>
> I'm not familiar with telco power supplies,
> I know only that they used 48V with positive
> to ground.
>
> So the supply should be 48V, positive
> to pin 8 and negative to 10 ?
>
> Should I expect the GND to be connected to pin
> 8? Or it will be floating at middle voltage
> (hence the 19 to 32V rating), in this case
> all I need will be a dual 24V psu.
>
> Fabio.
>
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