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???
05/02/05 15:38
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#92728 - yes, if you measure
Responding to: ???'s previous message
Is it true that in all cases this convention holds true
yes, if you measure between the ground point of the device and another point on the same device.

If you measure between some arbitrary gruond and some point you have no knowledge of what you see.

Two plugs labelled ground e.g. in a building can be very different.

Erik

List of 13 messages in thread
TopicAuthorDate
Serial Port            01/01/70 00:00      
   ground is not ground            01/01/70 00:00      
      Grounded !!!            01/01/70 00:00      
         yes, if you measure            01/01/70 00:00      
            Connecting grounds of different circuits            01/01/70 00:00      
               connected            01/01/70 00:00      
   No isolators?            01/01/70 00:00      
      MAX232 is not an isolator            01/01/70 00:00      
         B & B Electronics            01/01/70 00:00      
   MAX232 is no isolator indeed            01/01/70 00:00      
   IMHO Erik is right..            01/01/70 00:00      
   serial port cable            01/01/70 00:00      
   Damages???            01/01/70 00:00      

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