SFP MODULE 1.25G 20KM 1310+1490 SC SINGLE MODE (PAIR)-NETLINK

NETLINK SFP Module 1.25G 20KM 1310+1490 SC Single Mode (Pair)

Reliable and Efficient Bi-Directional Optical Transceivers for Medium-Range Fiber Networks

The NETLINK SFP Module 1.25G 20KM 1310+1490 SC Single Mode (Pair) is a high-performance, compact optical transceiver solution that enables efficient and cost-effective bi-directional data transmission over a single fiber. Designed to operate over single-mode fiber (SMF) with a reach of up to 20 kilometers, this SFP module pair is ideal for service providers, data centers, enterprise networks, and FTTH applications that require stable and seamless communication over medium distances.

Using Wavelength Division Multiplexing (WDM) technology, the pair ensures full-duplex communication over a single fiber strand—minimizing fiber usage, reducing deployment costs, and simplifying cable management.

Bi-Directional WDM over Single Fiber

This NETLINK SFP module pair takes advantage of bi-directional WDM technology, allowing two-way communication on a single optical fiber. One module transmits at 1310nm and receives at 1490nm, while the other transmits at 1490nm and receives at 1310nm. This optical wavelength pairing enables the modules to transmit and receive data simultaneously, making them ideal for areas with limited fiber availability or where maximizing infrastructure efficiency is crucial.

The result is a practical and scalable solution for increasing bandwidth without additional fiber investment.

1.25Gbps Gigabit Speed

Supporting a data rate of 1.25Gbps, the modules are perfectly suited for Gigabit Ethernet applications and are fully compatible with network switches, routers, and media converters. Whether used in backbone links or access networks, these transceivers ensure consistent performance, low latency, and reliable connectivity.

The high-speed capability makes them ideal for handling large volumes of data, streaming, voice, and other time-sensitive services.

SC Connector – Simple and Secure

Featuring a durable SC (Subscriber Connector) interface, these SFP modules provide a stable and easy-to-use connection with low insertion loss and excellent return loss performance. The SC connector is ideal for telecom and network environments, offering a secure push-pull connection suitable for long-distance fiber applications.

Its rugged design ensures long-term durability, even in demanding environments.

Hot-Pluggable and MSA-Compliant

The NETLINK SFP modules are hot-pluggable, allowing for quick installation or replacement without shutting down the system—minimizing network disruption and supporting fast maintenance or upgrades. They also conform to the Multi-Source Agreement (MSA), ensuring seamless compatibility with a broad range of networking equipment from various brands.

This makes deployment easy and integration smooth across both new and existing network infrastructures.

Digital Diagnostic Monitoring (DDM)

The module supports Digital Diagnostic Monitoring (DDM), giving network administrators access to real-time operating data including:

• Optical transmit and receive power

• Internal temperature

• Laser bias current

• Transceiver supply voltage

This allows proactive troubleshooting, performance tracking, and predictive maintenance, ensuring optimal network reliability.

Energy Efficient and Robust Design

Built for durability, each module is encased in a metal housing that provides EMI shielding and effective heat dissipation. Designed to function in temperature ranges from -10°C to +70°C, it’s ideal for both indoor and outdoor use. Additionally, the transceiver is low-power consuming, making it suitable for energy-conscious network infrastructures.

Key Features

• Data Rate: 1.25Gbps

• Distance Support: Up to 20KM

• Wavelength: 1310nm/1490nm (WDM BiDi)

• Connector Type: SC simplex

• Hot-pluggable SFP form factor

• DDM (Digital Diagnostic Monitoring) support

• MSA-compliant for multi-vendor compatibility

• Low power consumption

• Operating Temperature: -10°C to +70°C

Applications

• FTTH (Fiber-to-the-Home) and FTTB (Fiber-to-the-Building) deployments

• Medium-range Gigabit Ethernet connectivity

• Enterprise campus networks

• ISP access networks

• Metropolitan Area Networks (MANs)

• Point-to-point fiber links between buildings

Conclusion

The NETLINK SFP Module 1.25G 20KM 1310+1490 SC Single Mode (Pair) delivers a perfect balance of performance, range, and efficiency for medium-distance optical communication. With its bi-directional WDM technology, SC interface, DDM capabilities, and hot-swappable design, this SFP module pair is a powerful solution for anyone looking to enhance network efficiency and reliability without overextending their budget. Ideal for telecom providers, enterprises, and data centers, it ensures stable, high-speed communication in a compact and energy-efficient form.