E-link China Technology Co.,LTD

In industrial communication scenarios, traditional serial port signals are often affected by electromagnetic interference and have limited transmission distances, which have long hindered the stable operation of equipment. The E-link LNK-IRS93-SC series industrial serial port fiber optic modems (serial port optical network units) convert RS232, RS485, and RS422 serial port signals into optical fiber signals for transmission. This effectively overcomes the shortcomings of traditional communication methods. With high stability and long transmission distances, they have become core communication components in industrial control, stage lighting, and other fields. Product Definition LNK-IRS93-SC is an industrial three-in-one serial port optical conversion device that complies with EIA/TIA standards for RS232, RS485, and RS422, and is a plug-and-play type serial port optical modem. The fiber optic modem integrates multiple serial port interfaces, with a maximum transmission rate of 2 Mbps, capable of achieving bidirectional conversion between serial port signals and optical signals. It is specifically designed to extend the communication distance of serial ports and is suitable for the networking of various industrial serial devices. Working Principle The core principle of this device is the mutual conversion of optical and electrical signals. The front-end receives RS232, RS485 or RS422 electrical signals from the terminal device. The internal circuit modulates the electrical signals into optical signals and transmits them over a long distance through an optical fiber medium. The receiving end device then demodulates the optical signals back into standard serial port electrical signals for the subsequent device to read. The entire data transmission process is transparent. The fiber optic modem can adapt to different baud rates on its own without the need for additional parameter settings. Moreover, the optical transmission characteristics can isolate electromagnetic interference, ground loop interference and lightning damage, ensuring the complete transmission of data. Installation and Usage Hardware Installation: The equipment supports two installation methods: DIN rail mounting and wall mounting. The factory default comes with a rail bracket, and the packaging includes wall mounting accessories. Simply fix the equipment according to the on-site environment and it supports hot-swapping operation. Wiring Connection: Connect the serial port device using industrial terminals, distinguishing the TxD, RxD, D+, D-, GND interfaces; for the optical fiber interface, the default standard is SC interface, but ST, FC, LC connectors can also be selected. Connect the two ends of the optical fiber to the optical ports of the two optical modems respectively. Power Supply Connection: Connect to a DC 12V – 48V direct current power supply. The equipment’s power consumption is less than 5W. Once the power is turned on, the indicator light will light up normally, indicating successful power connection. Debugging and Operation: The equipment does not require parameter configuration. After wiring is completed, it can automatically match the baud rate and communication protocol, and directly achieve two-way data transmission. Core Features and Importance This serial port fiber optic modem has extremely strong adaptability to industrial environments. Its operating temperature range is from -25℃ to 75℃, and the storage temperature range can reach -40℃ to 85℃. It can operate stably in both high and low temperature environments. The fiber optic modem is equipped with 15KV static protection and 1500W/second surge protection, significantly enhancing the risk-resistance capability of industrial sites. The transmission distance is outstanding. For multimode fiber, the maximum transmission distance is 5 kilometers, and for single-mode fiber, it can reach up to 80 kilometers, completely solving the transmission limitations of traditional RS232 (only 15 meters) and RS485/422 (only 1000 meters). This fiber optic modem not only improves the reliability and confidentiality of industrial data communication, but also reduces the probability of equipment failure, making it a key device for ensuring the continuous operation of industrial systems. Application Scenarios The fiber optic modem has a wide range of applications. It is mainly used in various industrial automation control and process control systems. It is also compatible with scenarios such as stage lighting DMX512 communication and traffic signal control. In scenarios like data center monitoring and remote equipment operation, long-distance serial communication links can be established to achieve data exchange between the monitoring room and remote serial devices. Currently, this fiber optic modem has been widely implemented in various industry scenarios that require long-distance and highly stable serial transmission. The LNK-IRS93-SC series industrial serial port optical modem, with its solid hardware protection, flexible installation method, extremely long transmission distance and no-debugging usage advantages, perfectly compensates for the shortcomings of traditional serial communication. As a basic conversion device for industrial communication, it meets the needs of multiple industries and is an ideal choice for building a secure, stable and long-distance serial communication network.

In the field of industrial communication, problems such as electromagnetic interference, long-distance signal attenuation, and lightning damage often affect the stability of serial port data transmission. The E-link LNK-IRS93-SFP industrial serial port optical SFP fiber modem is specifically designed to address these pain points. It is a serial port-to-fiber conversion device suitable for narrow spaces and harsh conditions. With its outstanding compatibility and protection capabilities, it has become the preferred equipment for industrial data transmission. Product Definition and Working Principle The LNK-IRS93-SFP is an industrial RS232/RS485/RS422 to fiber optic converter, also known as an industrial serial SFP fiber modem. The core working principle of this SFP fiber modem is signal conversion and transmission. It can modulate standard serial port signals into optical signals, and then complete long-distance transmission via the optical fiber link. The receiving end can then demodulate the optical signals and restore them to serial port signals. This SFP fiber modem supports bidirectional transparent data transmission and has self-adaptive baud rate capability. No additional parameter settings are required. By matching different SFP modules, the transmission distance can be flexibly adjusted, completely avoiding the electromagnetic interference and ground loop interference problems in traditional cable transmission. Installation and Usage This SFP fiber modem supports the disassembly and assembly of SFP modules, DIN rail installation, and wall-mounted installation. The operation is simple and it supports hot swapping. The specific steps are as follows: Installation and removal of SFP module: Align the SFP module with the interface on the device side and insert it until it is locked. Then connect the fiber optic cable to the LC interface of the SFP; when removing, first press the lock catch of the fiber optic connector to pull out the fiber optic cable, then turn down the SFP lever, and remove the module. Installation of DIN rail: First, tighten the accessory screws to fix the rail bracket, insert the upper part of the bracket into the DIN rail, press it until it is fully locked, and complete the equipment fixation. Wall-mounted installation: Tighten the L-shaped installation bracket screws, use the reserved hole positions of the bracket, and use screws to fix the equipment on the wall or a flat surface. Equipment wiring and debugging: Connect the serial port of the equipment to the serial port of the terminal device, connect the two ends of the fiber optic cable; connect the 12-48V DC power supply, and the power indicator light is constantly on, indicating normal power supply, and the indicator lights of each serial port and fiber optic cable light up simultaneously, indicating normal link communication. Core Features and Product Value This SFP fiber modem integrates multiple practical features, highlighting its significant practical value. In terms of transmission capacity, multi-mode fiber can achieve the farthest transmission distance of 2 kilometers, while single-mode fiber can reach up to 80 kilometers. The serial port has a maximum speed of 2 Mbps and is compatible with standard EIA/TIA serial port protocols. In terms of hardware protection, it is equipped with surge and static protection, and the operating temperature range is from -40°C to 75°C. It can withstand various extreme industrial environments. The structure is compact, supporting two mainstream installation methods, and is suitable for narrow spaces such as distribution boxes and industrial cabinets. At the same time, the SFP fiber modem is plug-and-play, equipped with complete status indicator lights, facilitating maintenance personnel to quickly identify and troubleshoot faults, significantly reducing usage and maintenance costs. Application Scenarios With stable transmission performance and strong environmental adaptability, this SFP fiber modem has a wide range of applications. In industrial control and process control scenarios, it is used for data interaction between sensors and controllers on the production line; in stage lighting control systems, it can be adapted to the DMX512 communication protocol to ensure stable transmission of lighting control signals; in the field of traffic control, it realizes long-distance transmission of traffic signals and monitoring data. Moreover, in scenarios such as factory areas with complex electromagnetic environments or outdoor industrial control sites, it can also ensure the security and confidentiality of data communication by leveraging the advantages of fiber optic transmission. Overall, the LNK-IRS93-SFP industrial serial optical SFP fiber modem combines multiple advantages such as long-distance transmission, strong anti-interference ability, and easy installation. It perfectly meets the diverse industrial communication needs of the present era. In the current era of continuous advancement in industrial intelligence, this device can continuously safeguard the serial communication links of various industries, and is a reliable choice for improving industrial communication quality and enhancing system stability.

In industrial security, IoT and commercial network construction, achieving data transmission and power supply through network cables simultaneously can significantly reduce wiring costs and construction difficulties. E-link LNK-SPL01 is an industrial PoE splitter that integrates dual-port switching functionality. This PoE Splitter is compatible with mainstream PoE standards and can separate the power and data signals in the network cable, providing stable power supply for non-PoE devices and expanding network ports. With its powerful industrial attributes, it becomes the preferred accessory in complex network environments. Product Definition and Working Principle The LNK-SPL01 is a gigabit industrial PoE splitter that also has switch functionality. It complies with the IEEE 802.3af/at PoE standard. When connected to a PoE switch or PoE power supply, the device can automatically separate the power and network data integrated in a single network cable. One path outputs a 12V DC power supply through the terminal, while the other path transmits pure network signals through two RJ45 network ports, achieving network splitting. This PoE Splitter supports dual power supply of PoE and 12V DC, and can automatically switch the power mode. When the PoE input is interrupted, it seamlessly switches to an external 12V power supply, ensuring continuous network and power supply for the device throughout the process. The gigabit transmission rate can meet the requirements for high-definition data transmission, and the maximum transmission distance can reach up to 100 meters. Installation and Usage This PoE Splitter is a plug-and-play device. No software debugging is required. The installation method is flexible and the operation steps are simple: Fixing the device: According to the on-site requirements, use the standard accessories to install the device on the DIN rail or the wall. The metal shell structure is stable and is suitable for scenarios such as cabinets and outdoor enclosures. Wiring connection: Connect the PoE network cable to the PoE input port of the device; connect the non-PoE devices to be powered to the 5-pin terminal, and connect two network terminals to two data output ports respectively. Backup power supply (optional): In scenarios where PoE power supply is unstable, connect a 12V DC power supply to the terminal, and the device will automatically identify and switch the power supply source. Status check: Determine the operating status through the LED indicators on the device body. Indicators such as PWR, POE/12V can directly reflect the power supply and network conditions. Core Features and Application Value This PoE splitter is equipped with an IP40 metal casing and a fanless design. It can operate stably in a wide temperature range of -40℃ to 80℃ and is suitable for both high and low temperature industrial environments. The product has a maximum output power of 20W and is equipped with output short-circuit protection, surge protection, and static protection functions, effectively protecting the downstream terminal devices. It integrates dual-port switching functionality, eliminating the need for additional switches, simplifying the network architecture, and ensuring an average downtime of 24 hours to guarantee long-term continuous operation. By using this product, the process of separately laying power cables can be omitted, reducing wire and labor costs, simplifying line management, and significantly improving the efficiency of network setup and operation. Main Application Scenarios The PoE splitter is compatible with various commercial and industrial scenarios. In the security monitoring system, it can be paired with network cameras, completing power supply and video transmission through a single network cable, and is widely used in parks and road monitoring. In the field of industrial automation, it provides power and network for industrial sensors, cash registers, and small industrial control devices. It is also applicable for the deployment of outdoor wireless APs and IoT terminals, and can be used normally in harsh outdoor environments. The LNK-SPL01 industrial PoE splitter integrates multiple functions such as power supply, signal separation, and network switching. It takes into account practicality, stability, and compatibility, and is compatible with the vast majority of non-PoE network terminals. Whether it is for industrial plants, outdoor security, or commercial network renovations, it can simplify wiring, reduce costs, and is a core component for building efficient and reliable network systems.

In industrial scenarios, long-distance PoE power supply and gigabit transmission are often limited by distance. The E-link LNK-IPE104-30 industrial 30W PoE extender can efficiently solve these problems, enabling the simultaneous extension of gigabit data and PoE power supply, and meeting the stable networking requirements in complex industrial environments. Product Definition LNK-IPE104-30 is an industrial 1-in-4-out Gigabit PoE extender. One port supports IEEE 802.3at PoE+ input, and four ports support af/at output. It does not require an external power supply. It can extend the standard 100-meter transmission distance to 200 meters. When cascaded with three units, it can reach 400 meters. It is suitable for harsh industrial environments. Working Principle The device receives 30W upstream power supply from the PoE PD port and converts it internally into 4 PoE PSE outputs. The total power is up to 25.5W. It adopts the store-and-forward mechanism to ensure gigabit line speed, complete data relay and power distribution, and achieve double the transmission distance and multi-fold expansion of power. Installation and Usage Steps Connect the upstream PoE switch/power supply to the PoE input port of the device using Category 5e/6 cable. Connect the power-receiving devices such as IP cameras, wireless APs, and industrial sensors to the 4 PoE output ports. Confirm that the link and power indicator lights are normal. The device will automatically identify the PD and start power supply. Install using DIN rail or wall mounting, fix it on the cabinet or wall to ensure good ventilation. Key Features and Importance This product features IP40 protection, a wide temperature range of -40°C to 80°C, 6KV lightning protection and ESD protection. The aluminum casing is sturdy and durable, ensuring long-term stable operation in harsh industrial environments. Gigabit line speed, 8K MAC address table, and 10Gbps switching capacity guarantee high bandwidth and low latency. Cascading expansion significantly reduces wiring costs and enhances the flexibility of network deployment. Application Scenarios It is widely used in factory automation, intelligent security, park monitoring, warehouse logistics, rail transit and other scenarios. It is compatible with PoE cameras, industrial APs, sensors, PLCs and other devices, solving the problems of long-distance power supply and data transmission at remote locations, simplifying wiring, and reducing construction and operation costs. The LNK-IPE104-30 offers stable and reliable performance, flexible expansion capabilities, and easy deployment, making it the preferred solution for industrial PoE network extension. It helps users efficiently build long-distance, highly reliable PoE power supply and gigabit transmission networks.