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???
02/11/12 12:35
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#185837 - Data collision
Responding to: ???'s previous message
Mahmood said:
I think more than 1 phone line is available, but is it worth having 1 phone line for data and one for voice?

If data is running in both directions you need some "handshaking", e.g. a master and a slave, to prevent data collision.

With two phone lines, on the other hand, you could send all the time.

Kai Klaas

List of 12 messages in thread
TopicAuthorDate
long range RS-485            01/01/70 00:00      
   Current loop?            01/01/70 00:00      
   Repeaters?            01/01/70 00:00      
   can you use repeaters?            01/01/70 00:00      
      No            01/01/70 00:00      
   Profibus people...            01/01/70 00:00      
      details            01/01/70 00:00      
         just a note            01/01/70 00:00      
         Phone lines...            01/01/70 00:00      
            phone lines            01/01/70 00:00      
               Data collision            01/01/70 00:00      
   It just works at slow speeds            01/01/70 00:00      

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