Alongside Ethernet on board, Power over Ethernet (PoE) offers several additional benefits. At a basic level it omits the need for a separate DC power infrastructure, providing power and communications via the same cable. By using standard Ethernet cables, no special tools are required.
Installation reliability is also increased as the centralized power enables back-up solutions with uninterruptible power supply systems. In addition, devices can be remotely powered down during periods of low usage or for security and safety reasons.
There is also no need for additional electrical outlets or running different cables. By using a PoE-compliant Ethernet switch, no additional hardware is required for regular Ethernet installations. PoE uses off-the-shelf components which can be found from many vendors on the market. The same equipment can be used in the office as well as in industrial applications, reducing procurement costs.
Now, let us turn back to our initial statement and explain why and how exactly Ethernet and PoE are changing operations in the field and why this is just the beginning.