Power over Ethernet (POE) is one of the best ways to power your gateway for outdoor deployments. It allows you to power your gateway using an ethernet cable, meaning you can ditch the power adapter and don't need an outlet nearby. A POE injector works by injecting power into your ethernet cable to transmit it to the gateway.


The SyncroB.it HNT Gateway natively supports POE, meaning you don't need a POE Splitter. 


All you need is a POE Injector and ethernet cable. 


POE Injector Requirements:

  • PASSIVE POE ONLY: You must use a PASSIVE POE injector, not active
    • Active POE injectors are often designated as 802.3a or similar. These are NOT compatible

  • Power: The gateway requires 12W (watts)
    • Acceptable Voltage: 12-48V (volts)
    • Acceptable Amps: 0.5+ A (amps)
    • Note: W = V x A ——— (Watts is equal to Volts multipled by amps)
      • EXAMPLE: A POE injector that is 24V and 0.5A supplies 12W of power, and is compatible
      • EXAMPLE: A POE injector that is 12V and 1A supplies 12W of power, and is compatible
  • Cable: Cat5e Ethernet or Newer
    • Any Cat5e cable or newer (5e, 6, 7) will support POE
    • Ethernet cables used for POE should not be longer than 100m (330ft)


Set up

  • Use the short ethernet cable provided with your gateway to connect the POE injector to your home internet router
  • Plug the POE Injector into a wall outlet
  • Use a long ethernet cable (up to 100m) to connect your POE injector to your gateway



Compatible POE Injectors (not comprehensive):

TP-Link PoE Injector | PoE Adapter 24V DC Passive PoE |

UbiquitiNote: Most Ubiquiti POE Injectors support passive POE, even though they may not explicitly indicate so