asterisk users - Oct 2005 - New TDM Revision in the wild: J

Hello!

Just thought I'd let everyone know that a new revision has popped out from 
Digium:  Rev J.  I don't have an I board in front of me to compare with, 
so I can't tell you what's different (besides a bunch more text on the 
back).  It looks like there is a PE-68624 chip near each RJ-45 connector 
now.  Google says that it's a "frequency control filter"  The
RJ-45
sockets themselves seem different from what I remember as well. 
All-in-all, the board seems to have a better look to it.  Or maybe I'm 
just tired!  :)

Does anyone know what might be different about this card?  I bought it to 
put into a new machine that I wanted to be identical to one I just put 
tougether two weeks ago.  Unfortunately, they're not identical now..

Tim Massey
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>It looks like there is a PE-68624 chip near each RJ-45 connector
 >now.  Google says that it's a "frequency control filter"

Looking at the data sheet for this chip, it is being used as an EMI 
filter, (preventing RF interference generated on the card being radiated 
back out the cable).

It would also offer filtering the other way - attenuating incoming 
spikes and RF noise.

Regards,

Richard

> Just thought I'd let everyone know that a new revision has popped out
from Digium:  Rev J.  I
don't have an I board in front of me to compare
with,
> so I can't tell you what's different (besides a bunch more text on
the back).  It looks like
there is a PE-68624 chip near each RJ-45 connector now.
>  Google says that it's a "frequency control filter"  The
RJ-45 sockets themselves seem different
from what I remember as well.  All-in-all, the board
> seems to have a better look to it.  Or maybe I'm just tired!  :)
> 
> Does anyone know what might be different about this card?  I bought it to
put into a new machine
that I wanted to be identical to one I just put
> tougether two weeks ago.  Unfortunately, they're not identical now..
One of the digium employees indicated the primary difference on this
card is complying with various non-US country standards on line 
filtering, jack design, etc. No functional differences.