SFP MODULE 1.25G 120KM 1490+1550 LC SINGLE MODE (PAIR)-NETLINK

NETLINK SFP Module 1.25G 120KM 1490+1550 LC Single Mode (Pair)

Ultra-Long-Distance Gigabit Optical Transceiver Pair for Single-Fiber Networks

The NETLINK SFP Module 1.25G 120KM 1490+1550 LC Single Mode (Pair) is a high-performance, long-range Small Form-Factor Pluggable (SFP) transceiver set specifically engineered for robust and high-speed fiber optic communication. Designed to support Gigabit Ethernet over distances of up to 120 kilometers, this advanced bi-directional module pair offers superior data integrity, exceptional range, and optimal use of single-mode fiber using Wavelength Division Multiplexing (WDM) technology.

Ideal for telecom networks, ISP backbone infrastructure, enterprise data centers, and long-haul metropolitan area networks (MANs), this SFP pair ensures reliable and efficient optical data transmission for bandwidth-intensive operations.

Dual-Wavelength WDM Technology for Single-Fiber Efficiency

Utilizing WDM technology, this transceiver pair allows full-duplex communication over a single fiber core. One module transmits at 1490nm and receives at 1550nm, while the other does the reverse. This technique optimizes existing fiber infrastructure, dramatically cutting down on deployment costs by halving the fiber needed for communication.

With this module pair, network engineers can achieve optimal efficiency in dense fiber networks without compromising on performance or scalability.

High-Speed Data Transmission – 1.25Gbps

With a maximum 1.25Gbps data rate, the NETLINK 120KM SFP module pair is perfectly suited for Gigabit Ethernet, Gigabit Fiber Channel, and other bandwidth-demanding applications. It provides high-speed, uninterrupted communication even over extremely long distances, making it ideal for applications like:

• Inter-city data transmission

• Telecom aggregation layers

• ISP long-haul backbone connections

• Remote data center synchronization

Extended Transmission Range – Up to 120KM

One of the standout features of this SFP pair is its extended transmission distance of 120KM. This makes it a top choice for operators and network administrators who need to bridge significant geographical gaps without relying on repeaters or signal boosters.

Whether for rural broadband expansion, inter-branch enterprise networking, or backbone fiber links, this transceiver delivers exceptional range with consistent signal quality.

Compact LC Connector & Hot-Pluggable Design

Equipped with an LC (Lucent Connector) interface, the module ensures compactness, low insertion loss, and easy handling in dense networking environments. Its hot-pluggable nature allows technicians to install or replace the module without powering down the device, ensuring minimal service interruption.

MSA-Compliant for Wide Compatibility

Built to comply with the Multi-Source Agreement (MSA) standards, this SFP module pair is compatible with a wide variety of switch, router, and optical transmission equipment across vendors. This flexibility allows for seamless integration into existing network infrastructure.

Digital Diagnostic Monitoring (DDM) Support

The NETLINK SFP pair supports Digital Diagnostic Monitoring (DDM), allowing real-time tracking of essential operating parameters, including:

• Laser bias current

• Optical transmit and receive power

• Internal temperature

• Supply voltage

This functionality empowers proactive monitoring and maintenance, enhancing network uptime and reducing operational risk.

Rugged Build and Broad Operating Temperature

Designed for tough environments, the modules operate in a temperature range from -10°C to +70°C. Their metal housing ensures excellent EMI shielding, heat dissipation, and long-term durability in both indoor and outdoor installations.

Key Features

• Data Rate: 1.25Gbps

• Transmission Distance: Up to 120KM

• Wavelengths: 1490nm Tx / 1550nm Rx & vice versa

• Connector: LC Simplex

• Single-mode fiber (SMF) support

• Hot-pluggable SFP form factor

• MSA and RoHS compliant

• DDM (Digital Diagnostic Monitoring) support

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

Application Scenarios

• Telecom long-haul transmission

• Metro network aggregation

• Enterprise data center interconnects

• Rural or remote branch connectivity

• High-speed ISP backbone expansion

• Security and surveillance data backhaul over fiber

Conclusion

The NETLINK SFP Module 1.25G 120KM 1490+1550 LC Single Mode (Pair) provides a premium-grade, high-capacity solution for ultra-long-range fiber networking. It combines excellent performance, WDM efficiency, extended reach, and diagnostic capabilities in a compact form factor. This makes it the go-to choice for network operators and enterprises seeking reliable, cost-effective, and scalable optical communication across large geographical distances.