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Difficulty: MediumNetwork Hardware Devices

A network administrator is setting up IP surveillance cameras in a remote warehouse facility. The cameras require direct electrical power over the existing Cat6 Ethernet cables, but the existing network switch powering the rack does not support Power over Ethernet (PoE). Which network hardware device should be installed inline between the non-PoE switch ports and the cameras to supply power over the network cabling?

  1. PoE injectorAnswer
  2. B
    Layer 3 switch
  3. C
    DHCP relay agent
  4. D
    Wireless access point

Answer

A PoE injector is the correct device to add electrical power to an Ethernet link when the existing switch ports do not support Power over Ethernet.
A PoE injector is designed specifically to introduce DC power into an existing Ethernet cable run where the source switch port does not natively provide PoE.

Step-by-Step Solution

1
Identify the primary physical network requirement
The IP cameras require Power over Ethernet (PoE) to function over the Cat6 cables.
The devices need both data signals and electrical power running over the same network cable.
2
Evaluate existing hardware limitations
The current network switch ports only transmit data and do not deliver power.
Non-PoE switches require external hardware intervention to supply DC voltage onto the cable conductors.
3
Select the appropriate hardware device
Choose a PoE injector.
A PoE injector connects into the data port and AC outlet, merging power onto the Ethernet line heading to the camera.

Key Concept

Power over Ethernet (PoE) Hardware Adaptation
Estimated Time:1m 0s
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Topics

Network Hardware Devices

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