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???
10/22/03 14:12
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 		 #57079 - RE: Multiple RS232 devices, 1 controller
Responding to: ???'s previous message
Shahzad Aslam wrote:
-------------------------------
okey R232 can not do the job..

No idea about RS485. Can some body suggest me a chip and how will multiple devices be handled in this case.

Does the chip connects to 8052 like MAX232

Shahzad
Go take a look at Erik's links. The answers are all there. 4 wire RS485 can be handled like RS232. 2 wire (+earth) has a direction signal that you need to drive.

Steve

List of 32 messages in thread
TopicAuthorDate
Multiple RS232 devices, 1 controller            01/01/70 00:00      
   sorry some mistakes in question            01/01/70 00:00      
      RE: sorry some mistakes in question            01/01/70 00:00      
         RE: sorry some mistakes in question            01/01/70 00:00      
            RE: sorry some mistakes in question            01/01/70 00:00      
            Not RS232            01/01/70 00:00      
               RE: Not RS232            01/01/70 00:00      
                  RE: Not RS232            01/01/70 00:00      
                     RE: Not RS232            01/01/70 00:00      
                     RE: Not RS232            01/01/70 00:00      
      RE: sorry some mistakes in question            01/01/70 00:00      
         RE: sorry some mistakes in question            01/01/70 00:00      
            RE: Multiple devices, 1 main controller            01/01/70 00:00      
               RE: Multiple devices, 1 main controller            01/01/70 00:00      
                  RE: Multiple devices, 1 main controller            01/01/70 00:00      
                     RE: Multiple devices, 1 main controller            01/01/70 00:00      
               RE: Multiple devices, 1 main controller            01/01/70 00:00      
                  RE: Why bodge it?!            01/01/70 00:00      
   RE: Multiple RS232 devices, 1 controller            01/01/70 00:00      
      RE: Multiple RS232 devices, 1 controller            01/01/70 00:00      
         RE: Multiple RS232 devices, 1 controller            01/01/70 00:00      
            RE: Multiple RS232 devices, 1 controller            01/01/70 00:00      
         RE: Multiple RS232 devices, 1 controller            01/01/70 00:00      
   RE: Multiple RS232 devices, 1 controller            01/01/70 00:00      
   RE: Multiple RS232 devices, 1 controller            01/01/70 00:00      
      RE: Multiple RS232 devices, 1 controller            01/01/70 00:00      
         RE: Multiple RS232 devices, 1 controller            01/01/70 00:00      
   Why not to use CAN bus            01/01/70 00:00      
      RE: Muhammad Sajjad            01/01/70 00:00      
   RE: Multiple RS232 devices, 1 controller            01/01/70 00:00      
      RE: Jacob Boyce            01/01/70 00:00      
         RE: But with a good Twisted Pair            01/01/70 00:00      

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