> Well, I plugged my Oncore UT+ into my PC and it didn't work until I
> put a level shifter in... no damage but no data either. So far I've
> been lucky in that every device I tried that needed a level shifter
> wasn't damaged by the lack of one. 

The normal MAX232 type level shifters include an inverter.

So even if the voltage levels work without a level shifter, the signal will 
be upside down.


-- 
These are my opinions, not necessarily my employer's.  I hate spam.




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