Practice question

What is the IEEE 802.3af/at standard commonly used for in traffic signal ITS deployments?

  1. Fiber optic testing procedures
  2. Power over Ethernet (PoE) for powering network cameras and wireless radios
  3. Traffic signal controller programming interface
  4. Conflict monitor communication protocol

Answer: B — Power over Ethernet (PoE) for powering network cameras and wireless radios

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