IP devices such as IP surveillance cameras that are controlled via a PoE (Power over Ethernet) network are limited by a distance of 100 meters between the ports. Sometimes you need to use a cable longer than 300 feet. In this case, the connection distance can be increased using what is aptly known as a PoE extender or PoE repeater. What is PoE Extender? This article is designed to walk you through the basics
Power over Ethernet (PoE) is a technology that, in addition to the data normally carried by the cable, routes power through a twisted pair Ethernet cable to active devices (PD), such as wireless access points, IP cameras, and VoIP phones. The limitations of PoE are that simple PoE only transmits signals from 100 m. That is why it is a challenge to connect a private LAN between buildings or more distant locations. Power Over Ethernet products (PoE Ethernet Extender or PoE Extender) provide an easy to connect, transparent power and Ethernet network bridge between existing AC outlets with Ethernet LAN data through your cabling to external PoE devices.
What is PoE Extender?
PoE extenders are the easiest and most effective way to extend CAT5 / 6 PoE transmission beyond the 100m limit of conventional PoE switches and injectors using standard twisted pair cables. The PoE extender is a connection device on the physical layer of the network. It is suitable for hotels, campuses, factory dormitories and small and medium businesses to create a low-cost network.
A Power-over-Ethernet extender (PoE extender) takes PoE technology to the next level by breaking two important limits as it can extend the distance limit of 100 meters and use existing copper twisted pair cables to run through the same stream network connection as an ethernet data stream.
Why use PoE extenders?
With the PoE extender you can easily improve the range and placement of your wireless and surveillance networks and thus the strength of your networks.
PoE extenders are not difficult to use. In general, it is just plug and go technology. The extenders usually work so seamlessly that the user may never know they are there.
The PoE extender reduces overall costs by eliminating the need for additional outlets and associated AC cabling to power the monitoring equipment. In other words, PDs can be deployed in the most convenient location for their use, not the location closest to an electrical outlet. This saves you time, money and concerns about adaptability, scalability and flexibility.
There are network or Ethernet switches that are not PoE compatible. If a PD is plugged into an electrical outlet and the power goes out, the device will lose power. In the absence of a UPS, all PDs lose power. However, this problem can be ignored by using the centralized PoE power supply. However, all devices are supported using a centralized power architecture and backed up.
PoE extenders use PoE power, which means that they use relatively low voltages, which means there is little chance of an electrical hazard.
How do you use PoE extenders?
A PoE extender receives power and data from the PSE it is connected to. It uses some of this energy for operation and forwards the remaining energy to the next PoE device. A POE extender helps installers overcome transmission limitations for Ethernet cables. A POE extender is also a POE injector. In theory, you would need one or two pairs of extenders per 100M. Your extender has a PoE in port and a PoE out port. It can simultaneously transmit data to back-end network cameras, wireless APs, VoIP phones, video door entry systems and other PoE endpoints.
Take the system configuration of the IP camera NVR as an example. When you connect your PoE extender to your IP surveillance camera, you only need to connect it inline. The PoE extender can run directly from the PoE port of an NVR or PoE switch to a camera and can easily reach 90 meters in length. Simply connect the PoE Extender Max in series to the Cat5 or Cat6 network cable for any additional length of 100 meters. No configuration or power is required. Because the work of the PoE extender is obtained through the PoE switch and no additional power supply.
If your IP camera is more than 100 m but less than 200 m away, you probably only need an extender. If you have to be 300 to 400 m tall, you probably need at least two or three extensions. If you connect an external camera from about 1 km away, the extenders will not help you. You need a fiber optic PoE solution.