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???
09/14/04 14:08
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 		 #77383 - RE: Noise Reduction Techniques.
Responding to: ???'s previous message
Prahlad wrote:

12. For cables carrying signals from one board to the other It's a good idea, to use a flat cable for this purpose, where each second, or at least third line is a ground line. All these ground lines MUST be connected to ground at each board!

Oleg wrote:

I disagree completely. Ground planes of two boards must not be connected by wires of ribbon flat cable because...

Oleg,

Prahlad is totally right! Please have a look into any PC: There you will find, that every SCSI or IDE harddisk is connected to motherboard in that way. And those guys must have had a very good reason to do this. Infact, they follow the rule, that every signal line (especially the fast digital ones!) must have its ground return current as close as possible next to it. This forces you to use several ground wires in the flat ribbon cable and to connect them to ground planes on both sides of course!!

Kai

List of 35 messages in thread
TopicAuthorDate
Noise Reduction Techniques.            01/01/70 00:00      
   RE: Noise Reduction Techniques.            01/01/70 00:00      
      RE: Noise Reduction Techniques.            01/01/70 00:00      
      RE: Noise Reduction Techniques.            01/01/70 00:00      
         RE: Noise Reduction Techniques.            01/01/70 00:00      
      RE: Noise Reduction Techniques.            01/01/70 00:00      
         RE: Noise Reduction Techniques.            01/01/70 00:00      
   RE: Point No: 28 To Erik & Steve            01/01/70 00:00      
      RE: Point No: 28 To Erik & Steve            01/01/70 00:00      
         RE: Point No: 28 To Erik & Steve            01/01/70 00:00      
   RE: Noise Reduction Techniques.            01/01/70 00:00      
      RE: Noise Reduction Techniques.            01/01/70 00:00      
   RE: Noise Reduction Techniques.            01/01/70 00:00      
      RE: Noise Reduction Techniques.            01/01/70 00:00      
         RE: Noise Reduction Techniques.            01/01/70 00:00      
            RE: Noise Reduction Techniques.            01/01/70 00:00      
               RE: Noise Reduction Techniques.            01/01/70 00:00      
                  Excellent thread            01/01/70 00:00      
               RE: Noise Reduction Techniques.            01/01/70 00:00      
                  RE: Noise Reduction Techniques.            01/01/70 00:00      
                     RE: flat cables            01/01/70 00:00      
            RE: Noise Reduction Techniques.            01/01/70 00:00      
               RE: Noise Reduction Techniques.            01/01/70 00:00      
   RE: Noise Reduction Techniques.            01/01/70 00:00      
      RE: Noise Reduction Techniques.            01/01/70 00:00      
   RE: Noise Reduction Techniques.            01/01/70 00:00      
   RE: Noise Reduction Techniques.            01/01/70 00:00      
      RE: Noise Reduction Techniques.            01/01/70 00:00      
         Revision 2.0 Noise Reduction Techniques.            01/01/70 00:00      
            RE: Revision 2.0 Noise Reduction Techniques.            01/01/70 00:00      
         RE: Noise Reduction Techniques.            01/01/70 00:00      
            RE: Noise Reduction Techniques.            01/01/70 00:00      
               RE: Noise Reduction Techniques.            01/01/70 00:00      
   RE: Noise Reduction Techniques.            01/01/70 00:00      
      RE: Noise Reduction Techniques.            01/01/70 00:00      

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