Waterproof PoE Extenders are network devices that integrate Power over Ethernet Ethernet power supply technology with industrial-grade waterproof design. They are specifically designed for outdoor and industrial harsh environments, breaking through the 100-meter transmission distance limit of ordinary network cables and providing PoE power supply to network terminals without the need for separate power lines.
Taking the E-link LNK-WP-IPE102 as an example, this device is an IP67 industrial gigabit PoE extender with a 1-in-2-out port design. It can achieve gigabit Ethernet signal extension and standard PoE power supply, making it a core device for network cabling in outdoor and industrial scenarios.

The core value of Waterproof PoE Extenders lies in solving the industry pain points of ordinary PoE devices not being able to adapt to outdoor harsh environments and having limited network cable transmission distances. This makes network cabling more convenient in outdoor/industrial scenarios without external power supply.
Its key features are represented by the E-link LNK-WP-IPE102, all of which have industrial-grade core configurations: an IP67 protection level aluminum casing, an IK10 explosion-proof rating, capable of adapting to a wide temperature range of -40°C to 80°C, and 0-95% no condensation humidity conditions; all ports are 10/100/1000Mbps gigabit Ethernet ports, supporting the IEEE 802.3af/at/bt full PoE standard, such that if the input power of this device is 90W and the maximum output of a single port is 60W, it can supply power to various PoE terminals;

It supports 3-level cascading, with a single-level extension of 100 meters and a total transmission distance of up to 400 meters, and is equipped with a 2K MAC address table, supporting 10kB jumbo frames, meeting the requirements of multi-device networking and high-speed transmission, and the overall is plug-and-play, without the need for external power cables.
The working principle of Waterproof PoE Extenders revolves around PoE power supply and signal conversion. Taking the E-link LNK-WP-IPE102 as an example, it adopts a mid-span and end-span dual PoE power supply mode, with pin allocation of 1/2 (+), 3/6 (-), 4/5 (+), 7/8 (-) to achieve power transmission, and also provides 50-57V standard PoE voltage to the terminal; signal transmission adopts the store-and-forward mode to ensure the stability of data packet forwarding.

Through a 1-input 2-output port design, the PoE signal and power are separated and re-integrated to complete the 100-meter signal extension in a single level, and multi-level cascading enables longer-distance transmission. The device has a 6Gbps switching capacity and a packet forwarding rate of 4.46Mpps, ensuring the efficiency of gigabit transmission.
This type of device’s installation meets the convenience requirements for outdoor/industrial scenarios, as the E-link LNK-WP-IPE102 is a wall-mounted design. It comes with a wall mounting bracket that can be directly fixed to the wall without complex installation procedures; the ports use M25×1.5 cable sealing sleeves, and proper cable sealing during installation ensures the IP67 waterproof effect;

The device is fully plug-and-play, requiring no software configuration, and can be used directly by connecting the PSE power supply and PD terminal; if cascading installation is required, Cat5e or Cat6 cables should be selected, and the number of cascading levels should not exceed 3 to avoid transmission and power supply efficiency degradation.
The application scenarios of Waterproof PoE Extenders mainly focus on areas that require outdoor wiring and networking in harsh environments. The core application field is the security monitoring industry. They can directly supply power to outdoor cameras, dome cameras, and other PoE terminals and extend the network transmission distance, without the need for separate power line installation, significantly reducing the cost of outdoor monitoring wiring.
At the same time, they are applicable to various network engineering and industrial scenarios, such as network wiring in outdoor parks and industrial areas, equipment networking in harsh industrial environments like mines and chemical plants, and can meet the gigabit network transmission and power supply requirements for outdoor and industrial sites. They are important supporting equipment for industrial network engineering and security system setup.