Michael Loftis wrote: > > Many RJ45 ports have integrated magnetics now (transformer) - external > options are made by pulse, bel, halo, and many others. As for > external magnetics they're small - they don't need to be very large > because they're not designed to be carrying current. > http://www.pulseelectronics.com/products/lan has a dozen or more > examples.
At first glance, these look exactly what I was asking for in the first post, a transformer, non-powered, right? There are so many models however, it's not clear if there are such ones could be placed between a regular UTP/FTP cable and regular switchport. > > > > >> If you've enough common mode > >> voltage to fault those out you may still be well short of "surge" > >> voltages that are protected by most equipment. You might improve the > >> issue by re-terminating each end only leaving the "spare" copper pairs > >> connected at one end of the RJ-45 (the switch end > >> generally)... > > > > Sounds like magic but could you elaborate? I did not quite catch the > > picture. > > You remove the extra (non 100mbit/10mbit) pins from the far end, don't > terminate them through, this sometimes is the path your stray ground > currents take. What to you mean by terminating/not terminating them? And thank you a lot for your input. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:[email protected] _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
