PoE Networking and Switches

With a system of PoE networking and switches, electrical currents travel with data along Ethernet cables. A Power over Ethernet, or PoE, device allows an Ethernet link to transmit power. Direct current power runs to PoE devices via cable, which reduces electrical wiring requirements and simplifies maintenance. PoE networking offers enhanced flexibility since devices that require AC can be installed in remote locations where outlets and/or cords are not readily available. With Power over Ethernet switches in place, a single cable will send both data signals and electrical power to a range of terminals. Only one connection is required for installing devices, such as:

  • Wireless access points
  • IP surveillance cameras
  • IP telephones
  • Network cameras

Setting up PoE devices can simplify equipment installation, indoors or outdoors.

Power over Ethernet Solutions

PoE cabling provides an alternative to power cords and AC adapters. With power over Ethernet technology, Category 5 or higher cables deliver electric currents to devices. Since the power remains separated from the data, there is no interference during transmission. PoE utilizes power-sourcing equipment (PSE), or power injectors, to provide output. Shut-off protection is available with some systems. This can prevent equipment damage in the event that a problem with the electric current does occur.

PoE Injectors Send Currents through Cables

Electric currents enter network cables through PoE injectors, which are also referred to as Power over Ethernet injectors. When PoE injectors are available, currents can be transmitted into PoE-compatible devices. If a non-compatible device is installed, an additional component will be needed to extract power from the cable. Power over Ethernet installations can also require specialized equipment, such as a POE switch, midspan power source, or high-power PoE hub.

If you need additional product knowledge, contact Comms Express.

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