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???
06/09/09 15:03
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Msg Score: +1
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#165950 - typical of "undefined" behaviour.
Responding to: ???'s previous message
Bing Logarth said:
this is the only info i could give.

In that case, unfortunately, you're on your own.

..the 2 rs232 are separated by diode.

How?
Surely you can show that?

the circuit works fine in the breadboard

"Bad" circuits can sometimes work by pure luck.

That's the trouble with "undefined" behaviour - it can sometimes look like "working"!

The arrangement you've shown is "bad" - it is abusing the RS232 connection - but it is possibe that it could appear to "work" under certain circumtances.

the other defective device can only receive and could not transmit when connected to a pc but both tx/rx works fine when connected to a device.

This is also typical of a "bad" design "working" by pure luck.

..i also have thesame circuit on the breadboard but could no longer receive the signal coming from both devices i assembled...but its transmitted signal can be received b both devices.

Again, typical of "undefined" behaviour.

List of 9 messages in thread
TopicAuthorDate
Weird Occurence            01/01/70 00:00      
   Are there two outputs connected together?            01/01/70 00:00      
   More detail required!            01/01/70 00:00      
      its confidential            01/01/70 00:00      
         typical of "undefined" behaviour.            01/01/70 00:00      
            unproductive response            01/01/70 00:00      
               Seriously            01/01/70 00:00      
   Aside: phenomena; phenomenon            01/01/70 00:00      
      I am always reminded of the muppets            01/01/70 00:00      

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