Ethernet port connections to meet 60601-1 and 60601-1-2

R

royal77

#1
Hello everybody,
We are developing a medical product (biopsy equipment).

Can you please help me out in the following requirement.

We have a standard ethernet port which have integrated magnetics and integrated LEDs.

In order to meet the safety requirements (60601-1) and EMC requirements, where should we connect the ground pins of the ethernet connector? To signal ground or protective earth? If they should be connected to protective earth, how to manage creepage and clearance distances? We have connected the signal ground to protective earth through Y1 capacitor.

The power supply (24V DC) for the board would be obtained from a isolated DC-DC converter which have SELV outputs.

The connector we have used is Molex 48025-0002.
Any suggestion would be greatly appreciated.Thanks
 
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J

JustinP

#3
Hello Royal again :)
The same like the USB issue: There are network isolation devices available, that have been tested and certified according to DIN EN 60601-1 and DIN EN 60601-1-2. These devices have been certified by a notified body and they completely isolate the signal AND the protective ground from the rest of the network within the required creeping and air distances. I am not allowed to post any links because i am new in this forum, but i can send the source to you directly if you like.

Justin

Added by Ajit - the link provided by Justin is http: // www .baaske .net/ netzwerkisolation.html?&L=1 - LONG DEAD LINK
 
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