IP175G ethernet switch

Hi everyone!

Unsuccessfully trying to find a schematic diagram of a 5-port switch based on a 175G chip. I found the circuit in the PDF, drew the board in the form factor I needed, but there are a lot of unknowns in it, so it was not possible to assemble the device on it. If anyone has a proven switch circuit, I would be very grateful. I think I’m not the only one looking for something like that.