As far as I can make out there's a 1.5mS cycle - voltage is applied to the line for 1.1mS, the line is released for 0.4mS during which the line is tested for fault conditions and some fairly limited control data is passed.
Because of the 'self test' shut down on fault condition it avoids the 100VA limit on Class 2 cicuits (as per POE) because NEC accepts this as a 'limited power source' circuit. Class 2 installation saves a lot of money, not only because of the reduced physical requirements as compared to Class 1, but also because it doesn't require the services of a qualified electrician. (Not to be confused with IEC Class I and Class II...)
https://www.electronicsweekly.com/ne...ables-2021-10/
Quote:
VoltServer told Electronics Weekly:
Digital Electricity has 336Vdc peak to peak, which is actually ±165V. The max current per pair out of the transmitter is 3A.
We can achieve up to 2.4kW and up to 2km. 2.4kW is limited to about 500ft [~150m] with one of our receiver models, and at 2km [6,500ft], we can achieve 400W with a different receiver model.
We use multi-conductor pair cable. Although some vendors call it ‘Digital Electricity cable’ it is simply copper [see Belden link below].
Safety is enhanced with digital over-sight, according to Vicor, which is supplying dc-dc converters for some of the receivers: “VoltServer takes electricity and breaks it into small energy packets,” said Vicor. “Each energy packet is analysed using a digital signal processing engine to determine that power is being safely distributed, and if a fault is detected the next energy packet is not sent. Each packet contains only a very small amount of energy, so individually they are not harmful to people, animals, systems, or buildings.”
|
https://www.belden.com/products/cabl...erOfResults=25
https://www.vicorpower.com/resource-...rver#solutions
Cheers