E-link PoE Switche

In scenarios such as remote networking in parks, factories, and security monitoring, the limitation of 100-meter transmission distance of ordinary network cables restricts network expansion. The LNK-3011WSFP Gigabit SFP optical converter, as the core device for converting copper cable to optical signals, is compatible with plug-in SFP optical modules.

E-link LNK-3011WSFP can extend the network transmission distance up to 120 kilometers, taking into account the gigabit adaptive rate, stable transmission, and low-cost deployment. It is the preferred equipment for building cross-building and long-distance networks. The entire text comprehensively explains the product’s basic information, principle, installation, core advantages, and application scenarios.

What is the product

LNK-3011WSFP is an external power supply model 10/100/1000M adaptive gigabit Ethernet optical converter. It is equipped with a standard SFP optical slot and does not come with the accompanying SFP optical module. The entire device has an independent desktop structure. LNK-3011WSFP complies with the IEEE802.3 full series Ethernet standards.

One side is configured with an RJ45 network port for connecting to Category 5 twisted-pair cables, and the other side has an SFP optical slot that is compatible with multi-mode, single-mode dual-fiber/single-fiber optical modules to achieve bidirectional medium conversion between electrical signals and optical signals. The overall size of the device is compact, only 71×94×26mm, and the power consumption is as low as 5W. It is suitable for use in wide temperature industrial environments.

Working Principle

The core logic of the equipment is the bidirectional conversion of optical and electrical signals. The RJ45 port receives the electrical signals from terminals such as switches and cameras, and the internal circuit encodes them before transmitting them to the SFP slot where the optical module is located. The signals are then converted into optical signals and transmitted over long distances via optical fibers. The optical signals on the opposite end are demodulated by the optical module and restored to electrical signals, which are then output through the RJ45 network cable to the terminal. The equipment automatically recognizes 10M/100M/1000M rates, full/half duplex modes, and wiring sequences.

LNK-3011WSFP supports ultra-long VLAN data packet forwarding and QoS traffic scheduling, ensuring that voice, video, and other business data are transmitted with priority and stability. The transmission error rate is lower than 10⁻⁹, and the long-term operational reliability is strong.

Installation and Usage Steps

• Power Connection: Connect to the accompanying external power adapter. Input AC 90-240V from the mains. The PWR indicator light remaining on indicates normal power supply.
• Optical Module Assembly: Select an SFP optical module that matches the transmission distance and wavelength and insert it into the SFP slot. Securely fasten the clip for fixation.
• Line Connection: Connect the RJ45 port with a Category 5e network cable to the switch, IP camera, etc.; Connect the two ends of the optical jumper to the SFP optical module of this device and the transmitting/receiving optical module of the opposite end.
• Status Debugging: Observe the indicator lights. A bright FXLINK indicates a connected fiber link. TPLINK1000/100 matches the network cable for rate negotiation, and TPACT flashing indicates normal data forwarding; Check the matching degree of the fiber, network cable, and module model when the link is abnormal.
• Shutdown and Disassembly: After power off, you can directly hot-plug the SFP module for replacement without restarting the entire device.

Importance and Key Features

This LNK-3011WSFP addresses the bottleneck of short-distance copper cable transmission, significantly reducing the cost of long-distance networking cabling. The modular SFP slots enable flexible replacement of optical modules to accommodate different transmission requirements ranging from 220 meters to 120 kilometers, without the need to replace the entire unit.

The core advantages include full-rate adaptive, automatic cable sequence identification for simplified construction, support for VLAN and QoS to adapt VoIP, high-definition monitoring and other services; industrial wide temperature range of -10°C to 55°C operation, 50,000 hours of average trouble-free operation time, moisture-proof and dust-proof to adapt to outdoor cabinets and data center environments; multiple status indicator lights for intuitive fault detection, external power supply for stable power supply, low power consumption for lower long-term operating energy consumption.

Application Scenarios

The cross-building networking in government and enterprise parks is the core application scenario. LNK-3011WSFP connects the switches of different office buildings to achieve gigabit local network interconnection; the high-definition security monitoring system in factories and construction sites transmits multiple IP camera video streams over long distances; the network extension in campuses and hospitals breaks through the 100-meter limit of network cables; the fiber optic access expansion of small-scale data centers; the broadband fiber optic connection for small-scale operators, which also ensures synchronous transmission of voice calls and broadband data; the long-distance data interaction of automated equipment in industrial parks, which can stably resist electromagnetic interference and ensure the uninterrupted operation of the industrial network.

The LNK-3011WSFP Gigabit SFP optical converter, with its modular flexible configuration, ultra-long transmission distance, and stable Gigabit transmission performance, covers the majority of medium and long-distance wired networking requirements.

It caters to both civilian, commercial, and light industrial scenarios. LNK-3011WSFP offers low-cost expansion of network coverage, reduces the difficulty of engineering wiring and later maintenance, and is an indispensable basic network device for building a stable fiber Ethernet.