Fuchs, S. and Schmidt, H., "Real Time Ethernet and Synchronizing with Inhomogeneous Physical Layers: CAT5 and Unshielded Twisted Single Pair Cabling," SAE Technical Paper 2015-01-0199, 2015, doi:10.4271/2015-01-0199.
Real time data transfer over Ethernet, with an inhomogeneous physical layer is studied. Within the Ethernet network 100Base-TX and BroadR Reach© physical layers are used. Synchronization of devices via Ethernet is investigated and synchronized transfer of video streams is shown. Purpose-built Ethernet-Physical Layer Adapters (E-PLAs) are applied. It is demonstrated that an Ethernet network with different physical layers may be used for real time data transfer with just a little trade-off in synchronization and transfer delay.