Bob Blick ha scritto:

> Each manufacturer can decide how they assemble them. It may be that one
> of them makes a mirror image for convenience, so one transformer is
> rotated and has the lower resistance winding on the primary whereas the
> other transformer has the higher resistance winding as the primary, so
> the DC resistance will follow their choices. In that one datasheet you
> linked to, the primary inductance is listed as 350 uH, I assume for both
> TX and RX. The secondary inductance is not listed, I imagine because any
> value they got wouldn't be significant since the common-mode coils are
> in the package. I'd say the TX and RX designations are arbitrary and you
> could safely swap them.


:)
sure they can. I appreciate your "interpretation" :) and it makes sense, 
so I guess we can possibly swap them as needed.

In fact, as I said, I was looking for all of the 4 values of impedance , 
but could not find them separately.


thanks again Bob!


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Ciao, Dario
--
Cyberdyne
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