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Kai Klaas
02/11/12 05:35
Read: 422 times
Germany


 
#185837 - Data collision
Responding to: Mahmood Elnasser'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      Mahmood Elnasser      02/10/12 01:51      
   Current loop?      Per Westermark      02/10/12 02:29      
   Repeaters?      Daniel Contarino      02/10/12 06:10      
   can you use repeaters?      Erik Malund      02/10/12 07:58      
      No      Mahmood Elnasser      02/10/12 14:10      
   Profibus people...      Kai Klaas      02/10/12 08:03      
      details      Mahmood Elnasser      02/10/12 14:24      
         just a note      Erik Malund      02/10/12 17:04      
         Phone lines...      Kai Klaas      02/10/12 17:06      
            phone lines      Mahmood Elnasser      02/10/12 23:06      
               Data collision      Kai Klaas      02/11/12 05:35      
   It just works at slow speeds      Oliver Sedlacek      02/14/12 05:03      

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