Has anyone else noticed that the wired lan is not electrically isolated on the LH7A400 ZOOM SDK? The reference schematic for the 91C111 shows an isolation transformer between the RJ-45 connector and the IC. There is no such transformer on the ZOOM SDK.

It also looks like the line impedence is not matched. The impedence for RJ-45 twisted pair is 75 ohms. The terminators used on the ZOOM SDK are 50 ohms.