Is it possible to connect the center taps of two Ethernet magnetics to each other back-to-back to pass the power from one port to another. Does it make sense? Is anything special required?
Asked
Active
Viewed 87 times
2

dgo
- 31
- 4
-
why would you want to do that? – jsotola Jan 27 '20 at 21:10
-
The two ports will connect to a self powered Ethernet switch. Therefore the switch will not need the power from the POE. The device on these two ports will connect to POE devices on both ends. – dgo Jan 27 '20 at 21:25
-
1makes sense to me ... give it a try – jsotola Jan 27 '20 at 21:31
1 Answers
0
Confirmed with vendor that this will work as long as the signals from each port are connected properly to a separate PHY and that each PHY provides proper impedance termination. IEEE802.3 is a point to point standard. As such you would need 1 PHY per each ICM.

dgo
- 31
- 4