Power over Ethernet has become a key part of wireless networks, smart buildings and enterprise networks. Why? Because Power over Ethernet simplifies the the delivery of electrical power to connect devices to the Local Area Network (LAN). And this is done by using the same Ethernet cables. This simplifies the device installation and maintenance process by not needing an electrical plug and power brick.
A simple example of this is a Wireless Access Point, it is powered and connected to the LAN via a PoE switch. There is no need for separate wiring, AC electrical circuits or receptacles to power the device.
Many enterprise type networks have come to rely on PoE to bring electricity over the existing network cables to power devices, such-as Access Points, IP Phones, PTZ security cameras and other devices. A major aspect of PoE that has been changing every few years is the increased need for device power. As these devices increase the number of frequency bands, features or options, the demand for more power also increases.
As network designers and integrators build and modify their Networks, they must be conscience of two main physical aspects. Max PoE power draw on their switches and having the correct Category cable installed to support the PoE device.
PoE has tremendously grown since the IEEE standards were created in 2003 and it is obvious that it’s use will only increase in the coming years. Some believe the PoE type 4 is the last standard change. But is it.??
It is a reminder that investing in quality cabling is crucial for future-proofing office networks. A trusted Network Cabling Specialist or Technician will assist with choosing the correct cable to meet the needs of a growing network.
The chart below highlights the basic changes to the IEEE PoE standard types and the power assigned to each.
Written by
Mark Hall
Premises Cabling
Network Cabling Contractor | Certified Premises Cabling Technician
