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???
07/05/06 16:27
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 		 #119687 - links to juicy B&B 485 stuff
Responding to: ???'s previous message
I could not find a link to the printed appnote I have, but the below is very valuable

the tech info section of this:
http://catsearch.atomz.com/search/?s...age10.y=30
The documents found here:
http://www.bb-elec.com/guide/guide_info.asp

describe a multitude of RS-485 considerations.

While all this, of course, reference the B&B products, most of it is of general interest.

Erik

List of 38 messages in thread
TopicAuthorDate
rs485 connection with 8051            01/01/70 00:00      
   RS 485            01/01/70 00:00      
      I have recommended the above appnote for            01/01/70 00:00      
         Yes, but...            01/01/70 00:00      
            cable shield connection ...            01/01/70 00:00      
               is it P.G. Woodhouse?            01/01/70 00:00      
               Hard and soft grounding            01/01/70 00:00      
                  grounding differential signals            01/01/70 00:00      
                     for such Maxim has 'the cure'            01/01/70 00:00      
                        Also AD & Linear Tech            01/01/70 00:00      
                     PEC            01/01/70 00:00      
                        RS485 using 2 wires only            01/01/70 00:00      
                           Using two wires only            01/01/70 00:00      
                              Thanks Russell Bull            01/01/70 00:00      
                                 Shielding            01/01/70 00:00      
                                    CAT5E - UTP and RS485            01/01/70 00:00      
                                       Cat5E & RS485            01/01/70 00:00      
                                          to shield or not to shiels, that is the            01/01/70 00:00      
                                             Thanks Erik            01/01/70 00:00      
                                             common mode voltage            01/01/70 00:00      
                                                comments to common            01/01/70 00:00      
                                                   Even without any tolerance            01/01/70 00:00      
                                                      you are right - need anothe cuppa            01/01/70 00:00      
                                                      I never tried...            01/01/70 00:00      
                                                         What threshold voltage do you use?            01/01/70 00:00      
                                                Transmitting signal ground and +5V            01/01/70 00:00      
                                       Yes            01/01/70 00:00      
                                          Thanks Russel, Erik and Kai            01/01/70 00:00      
                                             re 485 cabling            01/01/70 00:00      
                                                Slew rate controlled drivers prefered            01/01/70 00:00      
                                                   I agree but do not            01/01/70 00:00      
                                                      Of course, this is no excuse for fumblin            01/01/70 00:00      
                                                   slew rate controlled - low speed ??            01/01/70 00:00      
                                                      there is a graph in one of the 485 appno            01/01/70 00:00      
                                                      250kbps?            01/01/70 00:00      
                                                links to juicy B&B 485 stuff            01/01/70 00:00      
                                                re 485 cabling            01/01/70 00:00      
                                                   you found a better link than the one I            01/01/70 00:00      

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