Single-Pair Ethernet (SPE) is defined in IEEE 802.3 and adapts the basic Ethernet standard to use a single wire pair. Power over data line (PoDL) is
SPEBlox - Single Pair Ethernet Converter GigaBit to Single Pair
What is Single-Pair Ethernet and PoDL?
Single pair ethernet
Single Pair Ethernet (SPE)
T1 Industrial Single-Pair Ethernet (SPE) Products - HARTING
Single Pair Ethernet connects devices with data and power
Single Pair Ethernet
Introduction to Single-Pair Ethernet
Würth Elektronik Webinar: Single Pair Ethernet - Filter Design and Power over Data Line
Single Pair Ethernet (SPE) - explained easily: The Enabler for IIoT
10BASE-T1L Single Pair Ethernet by Graphics - News - SparkFun Electronics