E-link China Technology Co.,LTD

The E-link LNK-109M mini 4K HDMI Fiber Extender is a single-core multi mode fiber extender specifically designed for long-distance 4K HDMI 2.0 high-definition audio and video transmission. With its ultra-compact body design and stable lossless transmission performance, it solves the interference and picture quality loss problems of traditional copper cable transmission, making it a cost-effective choice for commercial and civilian high-definition audio and video transmission. Product Positioning This product is a miniaturized 4K/60Hz HDMI 2.0 single-core multi mode Fiber Extender launched by E-link. It consists of the transmitting end (TX) and the receiving end (RX), and must be used in pairs. The overall size is only 57x16x14mm and weighs 0.1kg. It can be directly plugged into devices for use. The product complies with the RoHS compliant lead-free standards of both Europe and China. The core function is to achieve long-distance transmission of uncompressed and lossless HDMI 2.0 signals through OM4 multi mode optical fibers, and it is an integrated HDMI optical module device. Importance and Key Features The core value lies in breaking through the limitations of copper cable transmission, achieving high-definition transmission without RFI/EMI electromagnetic interference and without image quality loss, and ensuring 4K high-definition quality even at a distance of 300 meters. Key features are prominent: supports 4K@60Hz 4:4:4 full color gamut, 18Gbps high-speed transmission; adopts WDM technology, a single-core OM4 multi mode optical fiber can transmit high-definition audio and video; transmits EDID, HDCP, CEC protocols, compatible with mainstream audio formats such as Dolby and DTS; wide temperature range operation (-20℃ to 70℃), plug-and-play without debugging, supports hot swapping, suitable for complex usage environments. Working Principle The product uses an 850nm wavelength as the transmission carrier. The transmitting end converts the HDMI signal into a 18Gbps serial data stream and transmits it through the LC optical port in a single-core OM4 multi mode optical fiber. The design of TMDS signal fiber transmission significantly enhances the anti-interference capability. At the receiving end, the serial data stream is restored to the HDMI signal. The entire process is without copper conductors, fundamentally avoiding signal loss and electromagnetic interference, ensuring the stability of audio and video transmission. Installation Tips This device does not require complex setup. The TX end can draw power from the HDMI interface of the source end. If the device’s power supply is insufficient, an external 5V power supply can be used. The RX end needs to be connected to an external 5V power supply via a Micro USB connector. Just connect the LC optical ports at both ends with a single-core OM4 multi mode optical fiber to complete the deployment. It supports hot swapping and no additional debugging is required; it can be plugged in and used immediately. Application Scenarios Thanks to its high-definition transmission and portability features, the product is widely applicable to three core scenarios: large-screen display for large venues, professional conference systems, and home entertainment. It can meet the long-distance audio and video transmission requirements for large-screen displays in shopping malls, high-definition video conferences in enterprises, and 4K audio-visual equipment in households. The E-link LNK-109M mini 4K HDMI Fiber Extender features a compact design, 300-meter lossless high-definition transmission, strong anti-interference capability, and easy installation. It strikes a balance between the stability of commercial scenarios and the ease of use in civilian scenarios, making it an excellent solution for cross-scenario high-definition audio and video transmission. It also provides efficient technical support for audio and video transmission in fields such as large-screen displays and conference systems.

In the field of long-distance transmission of high-definition audio and video, the E-link LNK-MHD series 1-channel micro SDI optic extender is a professional transmission device specifically designed for HD-SDI signals. With its miniaturized design and high stability, it has become the core adaptation solution in the fields of security monitoring and broadcasting, perfectly solving the attenuation and distortion problems in SDI signal transmission, and achieving uncompressed transmission of broadcast-level audio and video signals without compression. Product Positioning This device is a 1-channel HD-SDI optical extender, consisting of an transmitting end and a receiving end. It needs to be used in pairs and comes in two models: LNK-MHD-MM (multi-mode, 550m transmission) and LNK-MHD-20 (single-mode, 20km transmission). It is equipped with an aluminum casing, with a size of 79×27×18mm and a weight of 0.5KG per pair. It is a miniaturized device, which can be easily integrated into other devices. The core function is to achieve optical transmission of 1 channel of HD-SDI video signal (embedded 8-channel audio), compatible with SD-SDI/HD-SDI standards, and is a dedicated hardware for high-definition audio and video transmission. Core Value and Key Features Its core value lies in breaking through the transmission distance limit of SDI electrical signals, ensuring signal integrity and transmission quality, and meeting the high standards of professional fields. Key features are prominent: full-digital non-compressed broadcast-level transmission, supporting automatic re-timing and cable equalization from 270Mbit/s to 1.48Gbit/s; industrial-grade wide temperature range (-20℃~+70℃), suitable for various complex environments; supports hot swapping, hot exchange, LC single-fiber interface, with excellent optical dynamic range and no need for debugging; low power consumption

In scenarios where high-definition audio and video as well as control signals need to be transmitted over long distances, issues such as signal attenuation and interference often affect the transmission quality. The E-link LNK-DVI-1D1BA DVI Fiber Optic Extender, as a professional fiber optic extender product, realizes the integrated transmission of DVI video, bidirectional stereo audio, and RS232 control signals through a single fiber. With stable performance and high compatibility, it has become the preferred solution for various long-distance signal transmission scenarios. What is it The E-link LNK-DVI-1D1BA is a Fiber Optic Extender that integrates DVI video, 1 channel of bidirectional stereo audio, and 1 channel of RS232 signal transmission. It is developed by E-link China Technology. Its core function is to extend various signals through a single fiber, compatible with DVI 1.0 and HDCP 1.2 standards, and can automatically match the signal source and display device. It is an integrated signal transmission device suitable for commercial and industrial scenarios. Importance and Key Features The core value of this product lies in solving the distance limitations and interference problems of traditional electrical signal transmission, achieving lossless long-distance transmission of high-definition signals, and meeting the requirements of high-resolution and multi-signal synchronization transmission scenarios. Its key features are prominent: under single-fiber transmission, single-mode fiber can reach up to 80km, and multi-mode fiber ≤ 500m; supports the highest resolution of 1920×1200@60Hz, and is specially adapted for 1600×1200@60Hz; equipped with a 3.5mm stereo audio interface and 3-pin RS232 terminal block, with RS232 baud rate ≤ 115200; built-in ESD protection and image automatic adjustment system to ensure stable transmission, and DC5V power supply, with the maximum power consumption being only 4W, capable of operating in a wide temperature range of -20°C to +70°C. Working Principle and Installation Tips In terms of working principle, the product is divided into the transmitting end and the receiving end. The transmitting end collects DVI, audio, and RS232 electrical signals and converts them into optical signals through the SFPLC interface for transmission through a single fiber. The receiving end then restores the optical signals to electrical signals and outputs them synchronously to the corresponding display and control devices. The built-in system can automatically match the signal parameters, ensuring clear and stable images. Installation follows a simple principle, designed as plug-and-play; the DVI cable length should be controlled within 5 meters to avoid signal attenuation; the fiber interface should be distinguished as single-mode/multi-mode corresponding to 850nm/1310nm/1550nm wavelengths; audio and RS232 should be connected according to the device identification, with DC5V power supply directly connected, without complex configuration. Application Scenarios This optical Extender is suitable for various scenarios that require long-distance synchronous transmission of high-definition signals and control signals. The core includes remote signal expansion of computer display systems, remote control of RS232 controllers in industrial fields, signal transmission of commercial audio and video playback systems, and also can be adapted to scenarios with requirements for signal transmission stability and distance in security monitoring, conference systems, etc. The E-link LNK-DVI-1D1BA DVI Fiber Optic Extender, with the core advantage of single-fiber multi-signal transmission, combines high resolution, high compatibility, and easy installation, perfectly solving the pain points of long-distance transmission of high-definition audio and video and control signals. Its compact body (120x83x28mm) and stable performance make it highly adaptable in industrial, commercial, and other scenarios, and is a cost-effective choice for long-distance signal transmission.

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.