Single Pair Ethernet Anyone?

Does anyone know of products one could purchase to make some experiments with the technology as a hobbyist? My goal would be to exchange data at moderate to low speed (10Mbps or less) between small boards using the usual network stack but much simpler connectors and wires. Nothing professional or expensive, just the bare minimum to get started at hobbyist level.

Context: https://www.lapp.com/en/nl/products/properties-technologies/technologies/single-pair-ethernet/e/000211