E-link China Technology Co.,LTD

In the current era of widespread adoption of Power over Ethernet (PoE) technology, a single Ethernet cable can achieve both data transmission and power supply, significantly simplifying the wiring process for devices. The PoE Splitter, as the core component that connects the PoE power supply system with non-PoE devices, has become an important choice in industrial and security scenarios. The E-link LNK-INS301 series Industrial PoE + Splitter is a typical representative of such devices. This article will elaborate on the core contents such as the definition, operation, and application of the PoE Splitter based on its functional characteristics. What is a PoE Splitter A PoE Splitter is a power receiving end (PD) device. Its core function is to separate the mixed data signals and power in the PoE cable, providing data connections and direct DC power supply for non-PoE terminal devices. The E-link LNK-INS301 series is an Industrial Gigabit PoE + splitter that complies with IEEE 802.3af/at standards. It can convert PoE input into a 19VDC/20W power output, specifically designed for non-PoE devices in industrial scenarios, enabling independent supply of data and power. Importance and Key Characteristics The core value of the PoE Splitter lies in enabling non-PoE devices to adapt to the PoE power supply system, eliminating the cost of separately laying power cables and enhancing the flexibility of device deployment. Taking the E-link LNK-INS301 series as an example, the Industrial PoE Splitter has the following core characteristics: supporting 10/100/1000Mbps Gigabit transmission, with a transmission distance of up to 100 meters; operating in a wide temperature range of -40~80°C, with an IP40 metal casing suitable for harsh environments; equipped with short-circuit, surge, and ESD protection to ensure circuit safety; featuring a PWR/POE LED diagnostic light, supporting DIN rail and wall-mounted dual installation methods, and being plug-and-play without configuration. Working Principle The PoE Splitter needs to be used in conjunction with PoE switches, injectors, and other power supply end (PSE) devices. The E-link LNK-INS301 series receives the mixed signals from the PSE device through its RJ45 PoE input port and completes the separation of data and power within its internal circuit: the data signal is output through an independent RJ45 data port while maintaining the Gigabit transmission rate; the power signal is converted to 19VDC and supplied to the non-PoE device through 2-pin connector terminals, enabling synchronous transmission of data and power over a 100-meter distance in Cat5 and above cables. Installation Tips This type of device is designed for easy installation: first, use Cat5 and above UTP cables for wiring to ensure the stability of transmission and power supply; second, connect the PoE input port to the PSE device, the data port to the network port of the non-PoE device, and the power terminal to the power supply end of the device; third, the device is pre-installed with a DIN rail bracket and a wall-mounted bracket as standard, allowing for flexible selection based on the scenario; fourth, use the LED indicator lights to detect the working status, with the PWR light indicating normal input and the PWR light indicating normal power output. Application Scenarios PoE Splitters are widely applicable in scenarios requiring simplified wiring. Industrial products focus on industrial Internet of Things and security domains. The core application of E-link LNK-INS301 series is to supply power and transmit data for PTZ pan-tilt-zoom cameras in industrial scenarios. It can also be compatible with various industrial edge devices. Its wide temperature range and anti-interference features enable it to operate in harsh environments such as outdoors and industrial control cabinets. The 100-meter transmission distance meets the wiring requirements of industrial sites. The PoE Splitter is an important supporting device for PoE power supply technology, solving the power adaptation problem for non-PoE devices. Industrial PoE Splitters represented by E-link LNK-INS301 series, while maintaining basic functions, enhance environmental adaptability and security. They not only reduce the equipment deployment and maintenance costs in industrial scenarios but also provide more possibilities for the application of PoE technology in the industrial field. They are the preferred accessories for the wiring of industrial Internet of Things devices.

In the context of the rapid development of industrial digitalization and the Internet of Things, PoE (Power over Ethernet) Ethernet power supply technology has become the core solution for the deployment of industrial sensors, security terminals, wireless APs, and other distributed devices. However, traditional PoE technology often has industry pain points such as limited transmission distance and difficulty in powering multiple devices with high power. The 95W industrial-grade PoE extender, as a key device to solve these problems, has multiple functions including power distribution, data relay, and distance expansion. It becomes the preferred choice for point-to-multipoint PoE applications in industrial scenarios. This article takes the E-link LNK-IPE104-90 95W PoE extender as the core example to provide practical reference for industrial network deployment. Core Definition of 95W PoE Extender The 95W PoE extender is a high-power Ethernet power supply expansion device designed for industrial scenarios. Taking the E-link LNK-IPE104-90 as an example, this device is an industrial-grade 1-port 802.3bt PoE++ to 4-port 802.3af/at gigabit PoE extender. Its core breakthrough is to overcome the 100-meter transmission limit of traditional PoE and has both power distribution and data relay functions. The device can obtain a maximum of 95W PoE power from the upstream, providing a total of 75W power to 4 downstream devices without the need for an external power supply. It is the core device for point-to-multipoint PoE applications. Core Value and Key Characteristics Its core value lies in solving the pain points of industrial network deployment, such as cumbersome wiring, limited power supply distance, and difficulty in powering multiple devices. It can expand PoE ports and transmission distance without re-laying cables, significantly reducing construction and operation costs. The core characteristics of this device highlight its industrial-grade high compatibility, equipped with full-gigabit RJ45 ports (1 input 4 outputs), compatible with 802.3af/at/bt full PoE standards; a single extended PoE network can be 100 meters long, with a total expansion distance of up to 400 meters when cascaded with 3 devices, and the output power is intelligently adapted with distance, maintaining a total power of 75W within 101 meters and 65W at 200 meters. It also adopts an IP40 protection aluminum shell, supports a wide temperature range of -40°C to 80°C, is equipped with 6KV surge and 8KV ESD protection, and has excellent switching performance with 10Gbps and 8K MAC table, suitable for harsh industrial environments. Underlying Working Principle The 95W PoE extender operates based on the PSE/PD dual identity design of PoE technology. The device acts as a PD (Power Delivery) receiving end, obtaining 50~57V DC, up to 95W power from the upstream 802.3bt PSE power supply device, and receiving gigabit Ethernet data. Then, it acts as a PSE (Power Supply) transmitting end, using 1/2 (+), 3/6 (-) and other pin allocation methods to support both mid-span and end-span power supply modes. The data is regenerated through the storage-forward mode and transmitted together with the power to the downstream PD (Power Delivery) devices through 4 output ports. When cascaded, each device completes the relay of power and data, thus achieving the maximum 400-meter PoE network transmission. Practical Installation Tips The installation operation of this device is simple and highly compatible with industrial scenarios. The device is pre-installed with DIN rail brackets by default, and also comes with wall-mounted brackets. It supports both DIN rail and wall-mounted installation methods, plug-and-play without complex configuration. Wiring requires the use of Cat5/5e/6 unshielded twisted pair cables. Before installation, it is necessary to test the continuity of the network cable to avoid signal loss. The cascading should be strictly controlled within 3 units to prevent power and signal attenuation. The installation environment must ensure a non-condensing humidity range of 0 to 95%. The equipment can be directly deployed in industrial cabinets or on walls, relying on the aluminum shell for natural heat dissipation, without the need for additional protective measures. Typical Application Scenarios Based on its high power, long-distance, and industrial-grade characteristics, the 95W PoE extender is mainly applied in industrial and security fields. It can directly supply power to industrial sensors, wireless APs, PoE network cameras, and other devices, and is suitable for point-to-multipoint PoE application scenarios in smart factories, park security, industrial power supply systems, etc. It is particularly suitable for industrial sites where rewiring is not possible, and remote security monitoring points. It can achieve flexible deployment of gigabit data transmission and PoE power supply, precisely meeting the power supply and networking requirements of distributed devices in industrial digitalization scenarios. Overall, the 95W PoE extender is a highly practical expansion device for industrial PoE network deployment. Products like the E-link LNK-IPE104-90, which are of industrial grade, leverage core advantages such as high power compatibility, long-distance transmission, and industrial environment resistance, effectively solving the three major problems of wiring, power supply, and distance in traditional PoE deployment. Its simple installation method and flexible cascading capability further reduce the deployment and operation costs in industrial sites.

The holiday balance has been cleared, the hard work mode has been activated! With a bag full of happiness and full battery, we are back to the familiar battlefield. As we embrace the new year, say goodbye to internal conflicts and focus on the goals; no empty talk, only practical actions. May our inspiration burst out like bamboo shoots. The time has come, bringing about a fresh start. After the holiday rest, we return to our posts with enthusiasm and a brand-new attitude to embark on our journey. A new chapter requires new actions. May we steer with our original aspiration and paddle with our hard work, not fearing challenges and persevering without slackening. In work, we ride the waves and break through obstacles; in life, we experience warmth and smoothness. Every effort has its echo, and every persistence brings rewards. With unity and cooperation, let’s achieve great success and rise step by step, together reaching the lush paths and creating a brilliant future! May the work begin with great success and full energy! To welcome our colleagues back to their posts, the company has specially prepared a warm lunch to soothe the body and mind with delicious food and to ignite a new journey with enthusiasm. In the new year, may everyone eat well, drink well, have great enthusiasm, concentrate and unite as one, and move forward together. I wish everyone a smooth work, everything goes well, and in the new year, work hand in hand and achieve even greater success together!

What is a PoE Injector A PoE Injector is a device that can simultaneously provide data transmission and power supply through an Ethernet cable. It can connect non-PoE network devices to PoE terminals, solving the problem of separate wiring for power supply. The E-link LNK-INJ301-90 is a typical industrial gigabit 95W PoE++ power supply, supporting a wide input voltage range of 12 to 48VDC. With the power boost function, it can provide stable power to PoE terminals within 100 meters, making it an excellent choice for industrial and commercial scenarios. Importance and Key Characteristics of Selecting a PoE Injector The core of choosing the right PoE Injector lies in matching the device power and adapting to the usage environment. Its key characteristics directly determine the user experience. Firstly, the power specification must be compatible with the IEEE802.3af/at/bt standards. For example, the LNK-INJ301-90 can provide 95W PoE power under 48/24VDC input, and 60W under 12VDC, meeting the power requirements of high-power devices; Secondly, the network performance must support gigabit transmission. This product is compatible with 10/100/1000Base-TX and has a forwarding rate of 1488000pps, ensuring data transmission efficiency; Thirdly, the environmental and hardware characteristics. For industrial scenarios, a product with a wide temperature range of -40℃ to 80℃, IP40 protection, and an aluminum shell should be selected. Moreover, this device has an MTBF of over 200,000 hours and is equipped with LED diagnostic indicator lights, facilitating fault troubleshooting. Working Principle of PoE Injector The working principle of the PoE Injector is a series connection type. One end is connected to the non-PoE switch through the RJ45 port to receive data, and the other end is connected to the terminal through the RJ45 PoE output port. Data is transmitted through the 1,2TX and 3,6RX pairs, while power is output through the 1,2,4,5 (+) and 3,6,7,8 (-) backup pairs. This enables the simultaneous transmission of data and power over the same line. The LNK-INJ301-90 also supports end-to-end / mid-to-end PSE standards, with wide voltage input and power boosting function. It can stably convert and supply power under an input range of 12 to 48VDC, suitable for different power supply environments. Installation Techniques for PoE Injectors When installing a PoE Injector, it is necessary to follow simple and practical principles. The LNK-INJ301-90 supports both DIN rail and wall-mounted installation methods. It is equipped with a DIN rail bracket by default, and the wall-mount kit is a standard accessory. It can be flexibly adapted for installation in industrial cabinets or on the wall. Wiring should use Category 5 or higher unshielded twisted pair cables. The maximum transmission distance is 100 meters. For gigabit transmission, it is recommended to use Category 5 or higher specification cables. When wiring, distinguish between the data input and PoE output ports. The power is connected through the terminal block to 12-48VDC. An optional 48VDC/2.5A power supply can be selected separately. After installation, quickly determine the working status of the equipment by checking the Power and PoE indicator lights. Typical Application Scenarios of PoE Injector The application scenarios of PoE Injector revolve around those that require simplified wiring and stable power supply. The LNK-INJ301-90, with its industrial characteristics, can be widely used in scenarios such as PoE network cameras in security monitoring centers, wireless APs in data centers and office areas, IP telephones in industrial and commercial environments, etc. It can adapt to harsh industrial environments and meet the power supply requirements for long-distance and high-power PoE terminals. It is an ideal power supply solution for fields such as security, network communication, and industrial monitoring.