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.
Poe ethernet cable cat.
Power over ethernet is a technology that allows ip telephones wireless lan access points security network cameras and other ip based terminals to receive power in parallel to data over the existing cat 5 ethernet infrastructure without the need to make any modifications.
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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.
Focusing primarily on the original 802 3af poe specifications but also considering the more recently defined 802 3at poe plus specs the paper provides.
As the number of devices began adding up managing all these cables was time consuming.
Before poe technology came on the scene in addition to an ethernet cable each device also required a separate power cord.
Described by ieee 802 3af standard.
It transmits power over two of the four cabling pairs of cat5 cable or better.
The power delivery is up to 30w at the voltage range from 50 57v.
Ieee 802 3at 2009 type 2 poe.
The solution to cable mess came by combining data and power delivery over a single cat5 ethernet cable.
The upgraded version of the previous poe standard.
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A paper authored by general cable data communications products engineer rob gould makes the case for the use of category 6a cabling rather than category 5e cabling for applications in which power over ethernet poe will be employed.
In a poe design power is delivered over two of the four twisted pairs of cat3 cable or better.