Gary,
About 50% of our 100BASE-Tx cards require an additional 4-line common-mode choke
between the transformer-filter and the RJ-45 connector, to meet Radiated
Emissions limits with enough margin to satisfy our electromagnetic compatibility
(EMC) folks. So we snuggle all three components as clo
Cook, Jack
Subject: RE: 10/100 base interface in a plastic box
John,
Really good information there regarding treatment of chassis ground &
evacuation of other layers. I'd add the comment that the layout of the
signal etch between the transformer & the RJ45 connector (UTP) is al
domo.ieee.org
Subject: Re: 10/100 base interface in a plastic box
Jon,
My department has developed ten generations of Ethernet adapters (10BASE2,
10BASE-T, 100BASE-Tx) for IBM/Lexmark printers since 1990. We have looked
at,
but so far have not used, integrated-magnetics connectors because w
Jon,
My department has developed ten generations of Ethernet adapters (10BASE2,
10BASE-T, 100BASE-Tx) for IBM/Lexmark printers since 1990. We have looked at,
but so far have not used, integrated-magnetics connectors because we like having
the option of putting a common-mode choke in between the
(Richard) [mailto:rsto...@lucent.com]
Sent: Wednesday, October 17, 2001 8:22 AM
To: 'Jon Keeble'; emc-p...@majordomo.ieee.org
Subject: RE: 10/100 base interface in a plastic box
Jon,
if your running high etherent freq.
and the shield is NOT grounded,
you might fail class A FCC/Cispr 2
Jon,
if your running high etherent freq.
and the shield is NOT grounded,
you might fail class A FCC/Cispr 22.
Richard,
-Original Message-
From: Jon Keeble [mailto:j.kee...@fairlightesp.com.au]
Sent: Wednesday, October 17, 2001 1:05 AM
To: emc-p...@majordomo.ieee.org
Subject: 10/100 base i
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