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???
02/13/06 14:38
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#109838 - Forget about resistance etc think ULs on
Responding to: ???'s previous message
Straigh forward question is that how many AT89c2051 can be attached with the RS485.
NONE, you can attcah 32 Unit loads (UL) to a RS485 transciever.

Mean to say unit load is not clear to me.may someone explain it.
Forget about resistance etc think ULs only.
ANY RS485 driver can drive 2 terminators and 32 ULs.
Thus if you use devices which are specified as 1/2 UL then, of course, you can connect 64 devices etc.

Erik


List of 9 messages in thread
TopicAuthorDate
2 Level Master Slave architecture            01/01/70 00:00      
   not correct            01/01/70 00:00      
      latency            01/01/70 00:00      
         that depends ...            01/01/70 00:00      
            32+32+...            01/01/70 00:00      
               a current hog            01/01/70 00:00      
                  branches            01/01/70 00:00      
   unit Load........            01/01/70 00:00      
      Forget about resistance etc think ULs on            01/01/70 00:00      

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