[SI-LIST] Re: Tip & Ring Signals -Reg
- From: "RamachandranSuresh Kumar" <suresh_files@xxxxxxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: 23 Dec 2004 10:36:38 -0000
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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