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Power over Ethernet


SL Power Electronics’ PoE is an evolving technology that supplies reliable DC power


SL Power Electronics' Power over Ethernet (PoE) is an evolving technology that supplies reliable DC power over the same cables that currently carry Ethernet data. The PoE is modeled after the technology used by the telecommunications industry to supply reliable power to telephones. This enables lifeline quality power for voice over internet protocol telephones as well as many other low power Ethernet devices.

The PoE power supply can be located anywhere within 100 meters of the application versus a separate power source that would need to be located within six feet. With PoE, the power supply can be located in a wiring closet or anywhere that is away from the applications. Power and data are united with only one wire versus two wiring solutions. Because PoE eliminates the need for running both data and power wires to each network device, installation costs are lower.
Power over Ethernet (PoE)

Applications
  • IP telephone and network infrastructure
  • Building control
  • Computers, peripherals, and mobile devices
  • Point of sale and RFID tag readers
  • Entertainment, gaming, voting, and novelty
  • Other emerging PoE-enabled devices

Product Training Module (PTM): Power Over Ethernet (PoE) Product Training Module (PTM):
Power Over Ethernet (PoE)
RoHS Compliant

Digi-Key P/N Manufacturer P/N Description  
271-2476-ND PW180KA4800F01 POE INJECTOR 20.16W 48V @ 0.42A Datasheet
271-2477-ND PW180KA4800N01 POE INJECTOR 20.16W 48V @ 0.42A Datasheet
271-2478-ND PW180KB4800F01 POE INJECTOR 15.4W 48V @ 0.35A Datasheet
271-2561-ND PW182RB4800F01 POE GIGABIT 17W 48V @ 0.35A Datasheet
271-2562-ND PW183RA4800F01 POE GIGABIT 32W 48V @ 0.67A Datasheet