|
|
|
PoE Equipment |
|
| |
|
|
| |
PoE (Power over Ethernet)
|
|
| |
|
 |
For more technical detail about PoE,
visit ( http://www.poweroverethernet.com
)
|
|
| |
|
 |
Power Over Ethernet technology allows IP telephones, wireless LAN Access Points and
other appliances to receive power as well as data over existing LAN cabling, without
needing to modify the existing Ethernet infrastructure.
It has just become an international standard, called IEEE802.3af, as an extension to the
existing Ethernet standards. The freezing of the standard will allow an explosion of
Power Over Ethernet devices and installations. Power Over Ethernet is likely to be
ubiquitous in a few years, as the cost of adding the power supplies to the Ethernet
switches is going to be small. Indeed, it offers the first truely international standard for
power distribution.
Below figure shows a typical system. In the wiring cabinet existing Ethernet switch
equipment is retained and a ˇ°midspanˇ± power source injects power into the twisted pair
LAN cables. At the other end of the cables the power is used to run phones, wireless
access points, cameras and other appliances. An Uninterruptable Power Supply (UPS)
can optionally support the installation in the case of power failures.
|
|
| |
|
|

|
|
|
|
Products List |
| **
Click each P/N in red
color to download online catalog in pdf and thumb nail
photo to enlarge. |
|
|
|
|