Re: [PSES] Ethernet spacing and product insulation

2017-07-05 Thread JIM WIESE
...@ieee.org'; EMC-PSTC@LISTSERV.IEEE.ORG<mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: RE: [PSES] Ethernet spacing and product insulation Actually there is quite a bit out there on this subject, the problem is it is all scattered and changing and much makes no sense. 1.)There is a UL PAG an

Re: [PSES] Ethernet spacing and product insulation

2017-07-04 Thread Lubo Cekov
@randolph-telecom.com > > http://www.randolph-telecom.com > > > > *From:* Curtis McNamara [mailto:mcnam...@umn.edu] > *Sent:* Monday, July 03, 2017 6:11 PM > *To:* EMC-PSTC@LISTSERV.IEEE.ORG > *Subject:* [PSES] Ethernet spacing and product insulation > > > > I am doing a

Re: [PSES] Ethernet spacing and product insulation

2017-07-03 Thread Joe Randolph
lph-telecom.com> j...@randolph-telecom.com <http://www.randolph-telecom.com> http://www.randolph-telecom.com From: Curtis McNamara [mailto:mcnam...@umn.edu] Sent: Monday, July 03, 2017 6:11 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Ethernet spacing and product insulation I am

Re: [PSES] Ethernet spacing and product insulation

2017-07-03 Thread Richard Nute
Hi Curt: This is the second such question that I have received today! POE is 44-57 volts d.c. IEC 60950-1 and IEC 62368-1 have no requirements for d.c. voltages below 60. Class III equipment. Think battery-operated mouse or keyboard, or any USB-powered device. However, most NRTLs would

Re: [PSES] Ethernet spacing and product insulation

2017-07-03 Thread John Woodgate
Opinions Only <http://www.jmwa.demon.co.uk/> www.jmwa.demon.co.uk J M Woodgate and Associates Rayleigh England Sylvae in aeternum manent. From: Curtis McNamara [mailto:mcnam...@umn.edu] Sent: 03 July 2017 23:11 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Ethernet spacing and product insu

[PSES] Ethernet spacing and product insulation

2017-07-03 Thread Curtis McNamara
I am doing a pre-check on a product with Power Over Ethernet. The PCB doesn't appear to have sufficient spacing (creepage and clearance) between the incoming TX/RX circuitry and the isolated circuitry on the product side of the transformer. However, it comes with an integral plastic mounting