Bus configuration or wiring problem

[nikhilele]

I have simple doubt in bus configurations.
I know to keep more no of ground or sheilding the bus with ground gives good performance but for simple confuguration. which is the best choice
I have attached file.

I know its silly question but I also know here I will get answers.

 

[ptmsl]

Yes no3 is best for shielding. What kind of bus are you talking about pcb lines pcb layers or flat cable? In any case if the rise time is not very fast and you dont need to shield the signals from outside noise sources it will not make any difference.

 

[nikhilele]

mine are flat cables