I want to avoid using a relay for the switch.
I have some Pericom analog switches that are used for this proporse but I think that they must be used between the PHYs and the transformer. The devices are PI3L301DA.
Can I inject a DC signal to the transfomer to clamp the ethernet signal so that I could use the Pericom gates? And how about the impedances of the ethernet signal? Should I terminate the signal with proper resistors?