Re: [PSES] PoE Injectors

[Doug Smith]

Hi Bill,
 
Keep in mind that many POE adapters on the market will cause an
emissions problem because they are poorly designed and unbalance the
Ethernet pairs creating common mode currents.
 
See my Technical Tidbit at http://www.emcesd.com/tt2011/tt080111.htm
 
When you open some of them and look at the design, it is obvious they
were not designed by engineers.
 
Doug
 
Department for Continuing Education
Oxford, Oxfordshire, United Kingdom
--
Doug Smith
P.O. Box 60941
Boulder City, NV 89006-0941
TEL/FAX: 702-570-6108/570-6013
Mobile: 408-858-4528
Email: d...@dsmith.org
Web: http://www.dsmith.org
--
 

On Sun, 18 Oct 2015 18:50:30 +, Bill Owsley  wrote:

  Somewhere in the references at the end, you might find which
devices that these standards apply to.
There are number of exceptions.  And there may have been changes since
doc was published.
In the past I have emailed Victor with questions.
- Bill
 

-
 From: Scott Douglas
Subject: [PSES] PoE Injectors

Hello All,

I am wondering if PoE injectors need to be ErP compliant? If so, what
efficiency level? Does anyone know of any such injectors that are compliant?

The injector would be used to power a product and not a switch, router,
or access point.

Any and all comments appreciated.

Regards,
Scott

-

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-

This message is from the IEEE Product Safety Engineering Society
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Attachments are not permitted but the IEEE PSES Online Communities site
at http://product-compliance.oc.ieee.org/ can be used for graphics (in
well-used formats), large files, etc.
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Scott Douglas 
Mike Cantwell 
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-

This message is from the IEEE Product Safety Engineering Society emc-pstc discussion 
list. To post a message to the list, send your e-mail to 

All emc-pstc postings are archived and searchable on the web at:
http://www.ieee-pses.org/emc-pstc.html

Attachments are not permitted but the IEEE PSES Online Communities site at 
http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used 
formats), large files, etc.

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Re: [PSES] PoE Injectors

[Bill Owsley]

Somewhere in the references at the end, you might find which devices that these 
standards apply to.
There are number of exceptions.  And there may have been changes since doc was 
published.In the past I have emailed Victor with questions.- Bill

 
  From: Scott Douglas 
 To: EMC-PSTC@LISTSERV.IEEE.ORG 
 Sent: Sunday, October 18, 2015 2:04 AM
 Subject: [PSES] PoE Injectors
   
Hello All,

I am wondering if PoE injectors need to be ErP compliant? If so, what 
efficiency level? Does anyone know of any such injectors that are compliant?

The injector would be used to power a product and not a switch, router, 
or access point.

Any and all comments appreciated.

Regards,
Scott

-

This message is from the IEEE Product Safety Engineering Society emc-pstc 
discussion list. To post a message to the list, send your e-mail to 


All emc-pstc postings are archived and searchable on the web at:
http://www.ieee-pses.org/emc-pstc.html

Attachments are not permitted but the IEEE PSES Online Communities site at 
http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used 
formats), large files, etc.

Website:  http://www.ieee-pses.org/
Instructions:  http://www.ieee-pses.org/list.html (including how to unsubscribe)
List rules: http://www.ieee-pses.org/listrules.html

For help, send mail to the list administrators:
Scott Douglas 
Mike Cantwell 

For policy questions, send mail to:
Jim Bacher:  
David Heald: 


   

-

This message is from the IEEE Product Safety Engineering Society emc-pstc 
discussion list. To post a message to the list, send your e-mail to 


All emc-pstc postings are archived and searchable on the web at:
http://www.ieee-pses.org/emc-pstc.html

Attachments are not permitted but the IEEE PSES Online Communities site at 
http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used 
formats), large files, etc.

Website:  http://www.ieee-pses.org/
Instructions:  http://www.ieee-pses.org/list.html (including how to unsubscribe)
List rules: http://www.ieee-pses.org/listrules.html

For help, send mail to the list administrators:
Scott Douglas 
Mike Cantwell 

For policy questions, send mail to:
Jim Bacher:  
David Heald: