What is PoE?
Power over Ethernet (PoE), great stuff, this technology enables Ethernet cables like Cat 5e/Cat 6 to transmit electric power and data signal at the same time.
PoE helps power devices such as VoIP phones, wireless access points, LED lighting systems, surveillance products, industrial controls, and network switches using just Ethernet cables.
PoE powers at least a third of Internet of Things (IoT) devices, which today number in the billions. Smart homes, IP security systems, digital signs, and accuracy monitoring sensors in industrial settings all benefit from PoE technology.
The short-distance pain
One of the main benefits of PoE is it can enable cameras to observe and even live stream places where you couldn’t find a power socket nearby.
I can throw you a bunch of names: aquaculture cameras (fish farming, sea cucumber farming, etc.), factory production cameras, laboratory observation cameras, boat-mounted cameras, bunker engine monitoring cameras, underwater marine biology research cameras, underwater survey cameras, underwater operation cameras (such as inspection net box broken hole), diving exploration camera, underwater engineering acceptance camera, downhole observation camera (such as drilling and repairing wells).
These cameras can be used underwater, in tunnels, pipelines, or anywhere that requires prolonged monitoring.
However, the 328ft (100m) restriction greatly affects these cameras’ application threshold.
These limitations require users to be creative and find new powered cable solutions for extended-distance cabling.
What is a PoE extender?
If you need to run Ethernet LAN signals farther than 328 feet, one option is to use a PoE extender. These were developed in 2005 in order to extend long-distance power to devices such as PoE wireless access points and PoE IP cameras. Consumers liked these extenders because they are very easy to use. In general, it’s plug-and-play technology. The extenders usually work so seamlessly that the user may never know it’s there.