Thanks to all who responded.
Yes, Ralph Showers.
I kept the response from him for the longest time. But,
after several program and hard drive crashes, it's lost.
Thanks again.
Regards, Doug McKean
---
This message is from the IEEE EMC Society
Hi Reg,
Trying to find a bulkhead RJ45 (shielded filtered) connector for an EMC
chamber may prove to be an
impossible task as, IMHO, this type of connector might be fairly fragile and
hard to install for
such use. To that end, I will offer some suggestions:
1. Talk to chamber manufacturers.
so if we called it an RJ-48C, would that be better ??
At 04:56 PM 12/20/2001 , John Shinn wrote:
Although it may suprise some, and I may get
flak, but
an RJ45 connector is an specific configuration used
exclusively for a programmable data connection. It
has a specific wiring configuration.
I beleive his name is Dr. Ralph Showers. A very
nice fellow.
John Shinn, P.E.
Manager, Lab. Operations
Sanmina-SCI
-Original Message-
From: owner-emc-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of Doug McKean
Sent: Thursday, December 20, 2001 10:57 AM
Hey Henry et al,
Amphenol makes a RJ-45 10/100 Base T modular jack (RJ mag series :
RJMG-63-xx-xx-01) w/ built in common mode chokes
and isolation transformers, as well as other jacks. It also meets the NEBS
flammability criteria. Visit their web
site at www.rjmag.com or call them at 416 291
You might try:
www.conec.com
www.midcom-inc.com
www.regalusa.com
Regards and Happy Holidays!
Bill Fleury
-Original Message-
From: Reginald Henry [mailto:rhe...@vicon-cctv.com]
Sent: Thursday, December 20, 2001 12:51 PM
To: emc-p...@majordomo.ieee.org
Subject: RE:RJ45 filtered
Although it may suprise some, and I may get flak, but
an RJ45 connector is an specific configuration used
exclusively for a programmable data connection. It
has a specific wiring configuration. The RJ
stands for Registered Jack. This is an FCC designation
of that specific configuration.
There
If you take a look in Websters (http://www.m-w.com);
warranty: a usually written guarantee of the integrity of a product and of the
maker's responsibility for the repair or replacement of defective parts
guarantee: an assurance of the quality of or of the length of use to be
expected from a
Hi All,
Having seen mixed use of language i.e. Oxford English verses US English. It
some times created miss understandings.
I may be out in left field, but warranty is not the same as guarantee.
Does EU have a definition for Warrantee and Guarantee ?
I have seen the difference in
Did you see Regal Electronics? They make filtered RJ45 connectors
If not, try
Regal Electronics 408 988 2288
4251 Burton Dr
Santa Clara, CA 95054
might have a website around www.regalusa.com
A technical contact is Bill Kunz
- Robert -
Robert A.
Reg,
Look at Regal Electronics at http://www.regalusa.com. They have board
mounted RJ-45 that have gasketing appropriate for a panel.
Jim
Jim Knighten, Ph.D.
Teradata, a Division of NCR http://www.ncr.com
17095 Via Del Campo
San Diego, CA 92127
USA
Tel: 858-485-2537
Fax:
Historical bit of news ...
I asked a similar question a couple of years ago here
and was referred to a gentleman who was in the
writing of the original FCC limits. Can't remember
the man's name but he's a professor at Univ. Penn.
if I remember correctly.
Anywho, the answer I got back
To All,
Can anyone out there tell me where I would be able to purchase a fully
shielded and filter
RJ45 connector that is Bulkhead mountable.
The RJ45 must be able to handle data rates from 10Base T to 100Base T
I will be performing CE testing in the chamber so it must be bulkhead
mountable !
A recent query on this forum asked about the relative effectiveness of
capacitors versus diodes for Electrostatic Discharge (ESD) protection. These
are just two of over 220 topics covered in my article, Designing Electronic
Equipment for ESD Immunity, which I wrote for Printed Circuit Design
I have a copy of a CBEMA (Computer and Business Equipment Manufacturers'
Association) report from 1977 that includes the complete development of the
CE and RE limits imposed by the FCC. The limits are based purely on the
effect on a radio receiver. I have myself verified that the limits are
I read in !emc-pstc that rehel...@mmm.com wrote (in
of6c4e54e3.fd742a66-on86256b28.0040f...@mmm.com) about 'EMI guard
bands', on Thu, 20 Dec 2001:
Does anyone have any historical development data or insights into the
creation of limits?
See my direct response to the OP. Even if limits were
I read in !emc-pstc that CE-TEST cet...@cetest.nl wrote (in
nfbbilofgmjcamhepkbaaeglceaa.cet...@cetest.nl) about 'EMI guard
bands', on Thu, 20 Dec 2001:
It's just for a few months now that CISPR/IEC are considering
to implement measurement faults into the required margin.
No, the subject has
It's just for a few months now that CISPR/IEC are considering
to implement measurement faults into the required margin.
Several reports have been circulated for voting.
As far as my knowledge reaches, a margin for measurement errors
in your equipment is officially not required, however silly
After listening to this thread, it brings up a question that I have had
over the years regarding limit lines
and passing margins.
Are there EMI guard bands already built into the limit lines?
I find it very difficult to believe that a group of reasonable people
developing a limit line would
Hi Group
I have a question regarding working voltage measurement of IEC 60950
we have a E.U.T.(switching power supply)
I want to clarify the measurement of working voltage
1. Using an oscilloscope having an adequate bandwith and using a high
impedance probe (100Mohm), and adequate
Hi Jeff,
The MII in China does require type approval (Network Access License) for a
wide-ranging scope of telecommunications equipment.
There are several defined categories of equipment included in the NAL scope:
- Telecommunications Terminal Equipment
- Wireless Telecommunications Equipment
-
Collins, Jeffrey wrote:
Group,
Has anyone had experiences with Type Approvals for telecom equipment in
China? I'm specifically looking for laws which spell out what type of
Telecom products require it and what types are exempt.
I received a request from our sales in China that the
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