StarTech.com MSA Uncoded SFP Module - 100BASE-LH - 80km SMF DDM

The StarTech.com MSA Uncoded SFP Module delivers reliable 100 Mb Ethernet over single-mode fiber, engineered for long-haul links and enterprise-grade networks. Designed, programmed, and tested to work with 100BASE-LH compatible MSA switches and routers, this transceiver is a flexible, cost-effective solution for extending your network across campuses, data centers, or remote sites. With a maximum reach of up to 80 kilometers and built-in Digital Diagnostics Monitoring (DDM), it provides stable performance, straightforward installation, and ongoing visibility into link health, making it an ideal upgrade or backbone component for organizations prioritizing reliability and scalability.

• Long-range 100BASE-LH performance: Experience dependable 100 Mb Ethernet connectivity over single-mode fiber, enabling high-quality, cost-efficient access to distant network segments. This module is optimized for long-haul links where copper is impractical or too costly, delivering robust performance across multi-building campuses and metropolitan networks.
• Uncoded, MSA-compliant SFP module: Specifically designed for compatibility with 100BASE-LH capable switches and routers, this StarTech.com SFP transceiver adheres to MSA standards, ensuring broad interoperability with a wide range of vendor equipment. Its uncoded design allows straightforward integration into existing SFP slots without vendor lock-in or complex configuration.
• Distance up to 80 km: The transceiver supports links spanning up to 80 kilometers (about 50 miles) on single-mode fiber. This capability unlocks new deployment scenarios such as bridge links between campuses, inter-building connections within a data center campus, or remote node reach, all while maintaining reliable performance.
• Digital Diagnostics Monitoring (DDM): Built-in DDM provides real-time insight into optical parameters, including received power, temperature, laser bias, and other critical metrics. This visibility assists with proactive maintenance, faster fault isolation, and informed capacity planning, reducing downtime and keeping networks running smoothly.
• Compact, plug-and-play SFP form factor: The compact SFP module slides into standard SFP ports, enabling hot-swappable installation and minimal disruption to services. Its small footprint preserves rack space and simplifies upgrades, making it an excellent choice for busy data centers and edge deployments alike.

Technical Details of StarTech.com MSA Uncoded SFP Module - 100BASE-LH

• Product type: MSA-compliant fiber SFP transceiver
• Data rate: 100 Mbps (100BASE-LH)
• Fiber type: Single-mode fiber (SMF)
• Distance support: Up to 80 km (49.7 miles)
• Diagnostics: Digital Diagnostics Monitoring (DDM) supported
• Compliance: MSA-compliant (un–coded SFP module) for broad compatibility with 100BASE-LH networks
• Interface: SFP transceiver module designed for use in standard SFP ports
• Optimization: Plug-and-play integration with 100BASE-LH switches and routers for streamlined deployment

how to install StarTech.com MSA Uncoded SFP Module - 100BASE-LH

• Power down the device or ensure the system supports hot-swapping before installation. Remove the existing SFP module if applicable, or identify the vacant SFP slot in the switch or router.
• Insert the StarTech.com MSA uncoded SFP module into the appropriate SFP slot until it seats firmly with a gentle click. Confirm the module is securely connected and aligned with the host port.
• Connect a single-mode fiber optic link between the two network devices using the correct SMF cable and the appropriate connectors as required by your deployment. Ensure the fiber is clean, lanes are properly seated, and the link is free of kinks or damage.
• Configure the host device to operate the port at 100 Mbps Ethernet if automatic negotiation isn’t supported. Verify that the port recognizes the SFP module and that the link comes up with a valid speed and duplex setting.
• Monitor the link status via the device’s management interface. Use the SFP’s Digital Diagnostics Monitoring (DDM) data, if available, to verify optical power levels, temperature, and other key metrics. Run a basic throughput test to validate end-to-end performance across the 80 km link.

Frequently asked questions

Q: What is 100BASE-LH?
A: 100BASE-LH stands for a long-haul Ethernet standard that uses single-mode fiber to deliver 100 Mbps data rates over extended distances. It is widely used for campus and inter-building links where copper limitations make fiber a necessity. This StarTech.com module is specifically designed to support 100BASE-LH networks with long-range capabilities up to 80 km.

Q: Is this SFP module compatible with most network equipment?
A: Yes. The module is MSA-compliant and designed to work with 100BASE-LH compatible switches and routers. This broad compatibility helps minimize interoperability issues when integrating into mixed-vendor environments or upgrading legacy links.

Q: Does the SFP module support Digital Diagnostics Monitoring (DDM)?
A: Yes. DDM support is included, providing real-time optical performance data such as received power, temperature, and other important parameters to aid in monitoring, maintenance, and fault diagnosis.

Q: What deployment scenarios is this module best suited for?
A: It is ideal for long-haul fiber links between buildings, data center interconnects, campus networks, or remote site connections where 100 Mbps performance is sufficient and distance is a critical factor. The 80 km reach enables flexible, scalable designs while maintaining reliable connectivity.