Which device is used to inject power into PoE cabling for connected devices?

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Study for the Network Security Instructional Terminology Test. Enhance your knowledge with multiple choice questions, each accompanied by hints and explanations. Ensure readiness for your exam!

Multiple Choice

Which device is used to inject power into PoE cabling for connected devices?

Explanation:
Power over Ethernet delivers both data and DC power over the same Ethernet cable. To provide that power, you use a PoE injector or a PoE-enabled switch. The injector adds DC power from a supply onto the Ethernet line so devices like IP cameras, VoIP phones, or wireless access points can operate without a separate power adapter. The powered device negotiates with the injector or switch to draw only the amount of power allowed. RFI, privacy concerns, and SFP/QSFP transceivers don’t inject power into PoE cabling, so they aren’t the correct mechanism. The PoE injector or PoE-capable switch is the device that makes PoE power possible.

Power over Ethernet delivers both data and DC power over the same Ethernet cable. To provide that power, you use a PoE injector or a PoE-enabled switch. The injector adds DC power from a supply onto the Ethernet line so devices like IP cameras, VoIP phones, or wireless access points can operate without a separate power adapter. The powered device negotiates with the injector or switch to draw only the amount of power allowed. RFI, privacy concerns, and SFP/QSFP transceivers don’t inject power into PoE cabling, so they aren’t the correct mechanism. The PoE injector or PoE-capable switch is the device that makes PoE power possible.

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