10 years ago, in IEEE 802.3, a working group of standard specifications for Ethernet, issued a Call for Interest or CFI to propose a new Ethernet powering solution called “Power over Data Lines” (PoDL). This new standard was designed to improve upon 1000BASE-T1, another Ethernet standard that had just been introduced, which offered gigabit speeds over a single copper twisted pair, instead of the typical four-pair category cabling used in previous Ethernet standards.
PoDL and 1000BASE-T1 both benefit the...