Which device picks off the DC injected into CAT-5e by the injector and makes it available to powered equipment through its DC jack?

Which device picks off the DC injected into CAT-5e by the injector and makes it available to powered equipment through its DC jack?

• A. A PoE switch.
• B. A power conditioner.
• C. A data repeater.
• D. A DC picker or tap.

Answer: (D)

Power over Ethernet delivers DC power along with data over the Ethernet cable. A device that sits on the powered device side and takes that injected DC off the cable to feed a separate DC input on the powered equipment is doing exactly that: it taps into the PoE power and supplies it to the device through a DC jack. In practice, this function is often called a PoE splitter or power tap, and in some contexts it’s described as a DC picker or tap. Its job is to separate the DC power from the data so the powered device can receive power via its standard DC input. The other options don’t fit this role: a PoE switch provides power and data directly to devices, but not the intermediate extraction to a DC jack; a power conditioner smooths or cleans power for a device but isn’t about pulling PoE power from a cable; a data repeater handles only the data signal.

Power over Ethernet delivers DC power along with data over the Ethernet cable. A device that sits on the powered device side and takes that injected DC off the cable to feed a separate DC input on the powered equipment is doing exactly that: it taps into the PoE power and supplies it to the device through a DC jack. In practice, this function is often called a PoE splitter or power tap, and in some contexts it’s described as a DC picker or tap. Its job is to separate the DC power from the data so the powered device can receive power via its standard DC input. The other options don’t fit this role: a PoE switch provides power and data directly to devices, but not the intermediate extraction to a DC jack; a power conditioner smooths or cleans power for a device but isn’t about pulling PoE power from a cable; a data repeater handles only the data signal.