Transition Networks TN-SFP-LX1T SFP(mini-GBIC) Module

The Transition Networks TN-SFP-LX1T SFP(mini-GBIC) Module is a high-performance, plug-and-play fiber transceiver designed to deliver reliable 1000BASE-LX connectivity over single-mode fiber. Engineered for demanding network environments, this SFP module provides up to 1.25 Gbps data rates, long-reach capabilities of up to 10 kilometers, and a rugged temperature range that makes it well-suited for data centers, campus backbone networks, and industrial settings. With a compact SFP (mini-GBIC) form factor and an LC duplex connector, it easily fits into standard SFP slots on switches, routers, and media converters. The TN-SFP-LX1T is built to support modern Ethernet deployments while offering advanced monitoring through DMI, enabling proactive management and reduced downtime. Whether you’re upgrading a legacy fiber distribution, expanding a metropolitan-area network, or configuring a redundant link between critical infrastructure devices, this module provides the performance, compatibility, and durability you need for dependable, future-proof connectivity.

• The TN-SFP-LX1T delivers long-range 1000BASE-LX operation at 1.25 Gbps in a compact SFP form factor, supporting single-mode fiber with a typical reach of up to 10 kilometers. This combination enables cost-efficient, scalable backbone links and seamless uplink connections between core switches and distribution layers. With a wavelength optimized for long-haul transmissions and robust BER performance, it maintains high-quality Ethernet transport across metropolitan and campus networks while minimizing the need for intermediate amplifiers or repeaters.
• Industrial-grade reliability with an extended temperature range (-40°C to 85°C) ensures stable operation in harsh environments, data centers, and equipment rooms where temperature fluctuations, dust, and humidity are common. The TN-SFP-LX1T is designed to resist thermal stress, maintain consistent link quality, and reduce downtime caused by environmental extremes. This resilience is especially valuable for edge deployments, outdoor cabinet installations, and telecom backhaul where reliability is mission-critical.
• Designed for efficiency and compatibility, this module operates at 3.3V and is compatible with standard SFP host sockets, making it a straightforward, drop-in upgrade for existing fiber infrastructures. Its low power footprint helps manage power budgets within dense rack environments, improving cooling efficiency and operational cost. The plug-and-play nature of the module supports quick swaps and simplified inventory management, enabling faster service restoration in case of link changes or upgrades.
• The TN-SFP-LX1T uses a duplex LC connector for reliable fiber termination and straightforward fiber management. This common optical interface aligns with industry standards for single-mode installations, encouraging the use of high-quality LC fiber cables and clean, careful terminations. The module's optical design emphasizes low insertion loss and stable coupling to the fiber, which translates to better link budgets and stronger, more consistent performance over long distances.
• With DMI (Digital Monitoring Interface) support, this SFP module provides real-time or near-real-time visibility into key link parameters such as optical power, temperature, and overall health. Network administrators can monitor link status, anticipate faults, and schedule maintenance more effectively, reducing unplanned outages and enabling proactive capacity planning. DMI compatibility helps enable SNMP-based monitoring and integration with existing network management systems for centralized control and rapid issue resolution.

Technical Details of Transition Networks TN-SFP-LX1T SFP(mini-GBIC) Module

• Transceiver type: SFP (mini-GBIC)
• Telecommunication standard: 1000BASE-LX
• Data rate: 1.25 Gbps
• Fiber type: Single-mode (SM)
• Connector: LC duplex
• Reach: Up to 10 kilometers
• Operating voltage: 3.3V
• Monitoring: With DMI (digital diagnostics monitoring interface)
• Operating temperature: -40°C to 85°C

How to install Transition Networks TN-SFP-LX1T SFP(mini-GBIC) Module

• Power down or confirm hot-swappable support for your switch, router, or media converter before inserting the module. Even though many SFPs are designed for hot-swapping, always verify the device’s recommended procedure and ensure there is no active fault condition that could be aggravated during a swap.
• Remove the protective dust cap from the TN-SFP-LX1T module and inspect the LC duplex connector for cleanliness. Handle the module by its edges, avoiding contact with the optical terminals, and ensure you have a clean, fiber-compatible environment to minimize the risk of contamination.
• Insert the TN-SFP-LX1T gently into the SFP slot until the module is fully seated and the latch engages. Confirm that the device recognizes the module; a successful insertion is typically indicated by a link LED activity on the corresponding port, followed by a stable link if the fiber path is properly terminated.
• Connect a suitable single-mode fiber run with LC duplex connectors to the module. Ensure that the fiber path is clean and properly terminated, and that the transmit (Tx) and receive (Rx) directions match the corresponding ports on both ends of the link. Use a 1310 nm wavelength path designed for 10 km operation to realize the full reach of this module.
• Power up the device and verify the link status, data rate, and health monitoring (where available). If DMI is supported and configured, you can access real-time diagnostics to confirm optical power levels and temperature readings. Validate that the link remains up under normal operating conditions and that there are no excessive loss or error conditions in the channel.

Frequently asked questions

• Q: What is the TN-SFP-LX1T? A: It is a Transition Networks SFP (mini-GBIC) transceiver that supports 1000BASE-LX with a 1.25 Gbps data rate, designed for single-mode fiber up to 10 km, featuring a duplex LC connector and 3.3V operation with DMI for diagnostics, and an extended -40°C to 85°C temperature range for industrial-grade reliability.
• Q: What type of fiber and connector does it use? A: The TN-SFP-LX1T uses single-mode fiber with a duplex LC connector, optimized for long-reach Ethernet links and backbone connections.
• Q: What is the maximum distance this SFP can support? A: The module supports up to 10 kilometers of reach on single-mode fiber, making it suitable for data-center backbones, campus cores, and long-distance links between network devices.
• Q: Does this SFP support remote monitoring? A: Yes, it includes DMI (digital diagnostics monitoring) support, which provides visibility into optical power, temperature, and other health metrics for proactive network management.
• Q: Is the TN-SFP-LX1T suitable for harsh environments? A: Yes, with an operating temperature range of -40°C to 85°C, it is designed for use in demanding environments such as data centers, industrial facilities, and outdoor cabinets where extreme temperatures may occur.
• Q: What are typical use cases for this module? A: It is ideal for building long-range Gigabit Ethernet links between switches, routers, and media converters, supporting backbone connections, data-center uplinks, and network redundancy paths that require reliable, high-quality single-mode fiber transmission.
• Q: How do I ensure compatibility with my equipment? A: Verify that your switches, routers, or media converters support 1000BASE-LX SFP modules and single-mode LC fiber. Consult the device’s compatibility matrix or vendor documentation to confirm support for DMI and the specific module family.