I am working on LAN Bypass circuit for 1000 Mb/s Ethernet ports. I need to use relays to turn the bypass mode or no link mode on during power failure.
My doubt is whether the relays should be used between RJ45 & Magnetics i.e Line side or between Magnetics & Ethernet PHY i.e. PHY side.
Also, if someone can help with some information on HW implementation of LAN Bypass will be helpful!!