What Is Power Over Ethernet Used For

Poe lets ethernet cables supply power to network devices over the existing data connection.

What is power over ethernet used for. Power over ethernet or poe describes any of several standards or ad hoc systems that pass electric power along with data on twisted pair ethernet cabling. Poe capable devices can be power sourcing equipment pse powered devices pds or sometimes both. Power over ethernet allows an ethernet cable to carry dc power as well as data signals to attached devices. For example if you have 10 spy cameras distributed across the entire building in that case it needs 10 power supply units to.

Power over ethernet poe is a networking feature defined by the ieee 802 3af and 802 3at standards. This relatively high voltage allows efficient power transfer along the cable while still being low enough to be regarded as safe. Ethernet cable cat 5 6 7 uses 4 twisted pairs. Power over ethernet is injected onto the cable at a voltage between 44 and 57 volts dc and typically 48 volts is used.

Our power without the struggle white paper makes the case for poe deployment in more detail and explains how poe can be used effectively. This allows a single cable to provide both data connection and electric power to devices such as wireless access points waps internet protocol ip cameras and voice over internet protocol voip phones. What is power over ethernet poe and what is it used for. Power over ethernet poe technology sends 10 100 1000 mbps of data and 15w 30w 60w and up to 90w of power budget to devices over cat5e and cat6 ethernet cables for a maximum distance of 100m.

How power over ethernet works and why it is used. Poe technology relies on the ieee 802 3af and 802 3at standards which are set by the institute of electrical and electronics engineers and. It is used for connecting remote devices that don t have a convenient local power source like ip cameras voip phones etc. To find out about the myths and misconceptions about power over ethernet options for high power poe and a little more about how the technology works please continue to poe explained part 2.