Daisy Chain PoE Devices Using PoE Power Forwarding
by Marty Pandola , Vendor website, Jan 26 2021
Focus:
This blog by a provider of power-over-Ethernet (PoE) devices explains a feature of PoE that
some designers may not be aware of--power forwarding, which allows the transmission
distance of a single Ethernet run to be extended beyond the standard-specified 100 m or to
add jacks. Power forwarding involves cascading or daisy chaining PoE powered devices, or
using a PoE extender. This short article offers an example where two PDs, a wireless access
point and an IP camera are daisy chained. A Microchip PSE chip and PoE extender that
support power forwarding are noted.
What you’ll learn:
- How to extended PoE power transmission beyond 100 m or to add RJ45 Ethernet jacks using power forwarding (overview)
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