[SI-LIST] Re: Tip & Ring Signals -Reg

  
  
Hi steve,
Thankyou, here if I provide  Earth ,whether Capacitive loading of the tip&ring 
plays role ? also  how I can  make a trade off between the  crosstalk shielding 
 and capacitive loading.

Whether Capacitive loading actually reduce the bit rate ?


With Regards,
Suresh Kumar.R

    


On Wed, 22 Dec 2004 steve weir wrote :
>Suresh, your primary concern with tip and ring should be meeting the safety 
>standards.  Earth can provide some crosstalk shielding, but at the low 
>frequencies of DSL you are primarily talking about shielding from other nearby 
>RF sources.
>
>Steve
>At 05:14 AM 12/22/2004 +0000, RamachandranSuresh Kumar wrote:
>>
>>Hi all,
>>I am a new user.
>>
>>This is the 12 layer ADSL  line card and regarding giving
>>earth shield pouring.
>>
>>I am routing  24 differential pairs of tip@ring signals from the transformer 
>>to the  CPCI Connector in the layout.
>>I would like to know
>>
>>1. How if Earth Shield is poured in between the  tip@ring signal
>>    routing plays the role.
>>
>>Whether earth shield helps in any way to this differential signal.
>>
>>The shield is shorted in the backplane with the ground,and kept sperately in 
>>the line card.
>>
>>Expecting your reply
>>
>>With Regard,
>>Suresh Kumar.R
>>
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>

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