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The LINK-PP LS-SC55311G-20I is an industrial Gigabit SFP transceiver engineered for robust data communication. Utilizing advanced WDM technology, this 1G BiDi optical transceiver operates over single-mode fiber to deliver reliable 1000BASE-BX connectivity. Built to withstand extreme environments, it provides exceptional network performance for critical industrial and outdoor telecom infrastructure deployments.
| LINK-PP Part Number | LS-SC55311G-20I | Vendor Name | LINK-PP |
| Form Factor | SFP | Max Data Rate | 1.25Gbps |
| Wavelength | 1550nm-TX/1310nm-RX | Max Cable Distance | 20km |
| Connector | Simplex SC | Media |
SMF |
| Transmitter Type | DFB | Receiver Type | PIN |
| TX Power | -9 to 0dBm | RX Power | -23 to -1dBm |
| Receiver Sensitivity | -23dBm | Receiver Overload | -3dBm |
| DOM Support | Yes | Operating Temperature Range |
-40 to 85°C |
Engineered as a premium hot-pluggable module, this single fiber bidirectional transceiver integrates a high-performance DFB laser and PIN detector. As an industrial grade SFP, it guarantees seamless operation across harsh temperature ranges from -40°C to 85°C, maximizing network resilience and minimizing deployment costs.
This highly efficient 1.25Gbps optical module adopts the standard compact SFP form factor. It offers network engineers a flexible, space-saving solution for upgrading enterprise networking equipment and expanding broadband access architectures with unmatched long-term stability.
Perfect for demanding railway communication networks, this rugged transceiver plugs directly into any compatible industrial networking switch. It ensures uninterrupted, high-speed gigabit data transmission for railway signaling, subway video surveillance, and intelligent transportation systems under harsh conditions.
Operating with a specific 1550nm-TX and 1310nm-RX configuration, this WDM SFP module transmits and receives data simultaneously over one cable. It must be paired with an opposing 1310nm-TX/1550nm-RX unit to establish a complete bidirectional optical link.
Designed for long-haul fiber optic networks, this powerful 20km SFP transceiver overcomes distance limitations. It maintains excellent signal integrity over standard 9/125µm single-mode optical cables, making it ideal for connecting remote factory sites and distributed campus networks.
Featuring a standard simplex SC connector, this module cuts cabling requirements in half. The single SC fiber optic interface provides secure, low-loss physical connections, significantly reducing infrastructure expenses while simplifying cable management in dense telecommunication racks.
Built-in Digital Diagnostic Monitoring allows administrators to track critical diagnostic parameters. With comprehensive DDM support, users can proactively analyze optical power, module temperature, and laser bias current, ensuring optimal network uptime and rapid fault isolation capabilities.
Every certified optical transceiver strictly adheres to global industry standards. Our commitment to compliance guarantees outstanding safety, environmental protection, and uninterrupted performance across global markets.
Through stringent manufacturing quality control, each module undergoes comprehensive factory evaluations. This meticulous procedure identifies potential anomalies, ensuring only flawlessly performing gigabit transceivers reach our global customers.
This industrial module officially holds FCC CE UKCA UL REACH approvals. These rigorous third-party endorsements reflect our dedication to producing eco-friendly, electrically safe, and highly secure networking hardware.
As a fully MSA compliant SFP, it guarantees seamless switch compatibility. It integrates effortlessly with major networking equipment brands, eliminating vendor lock-in and simplifying system upgrades.
To maintain exceptional networking standards, comprehensive transceiver reliability tests are performed. These strict diagnostic assessments validate optical integrity and long-term hardware durability.
Precise center wavelength analysis confirms exact 1550nm transmission for optimal laser operation.
Evaluating optical signal integrity ensures clear, jitter-free gigabit data transmission across single-mode networks.
Continuous BER testing guarantees extremely low data packet loss during sustained high-speed communication.
Subjected to extreme thermal cycling to verify absolute stability in -40°C to 85°C environments.
We prioritize secure optical module delivery to preserve component integrity. Our specialized packaging safeguards delicate electronics from warehouse dispatch directly to your deployment site.
Sealed in ESD safe bags to prevent electronic component degradation entirely.
Packed securely using reinforced shipping cartons to withstand severe transit impacts.
Rapid inventory fulfillment ensures immediate shipment of your critical network hardware.
Partnering with top couriers for reliable worldwide telecom distribution and prompt arrivals.
Featuring an effortless hot-swappable installation design, inserting this module into network switches requires no system downtime. Proper fiber optic patching using a clean SC simplex cable instantly establishes a robust, high-performance gigabit uplink for instant network expansion.
LINK-PP provides professional technical support, including pre-sales consultation, compatibility verification, and post-deployment troubleshooting to ensure smooth network operation.
Professional technical guidance to help customers select the most suitable LS-SC55311G-20I modules based on network architecture and application requirements.
Compatibility checks and validation to ensure seamless operation with Cisco switches and other supported networking platforms.
Step-by-step support for installation, configuration, and initial deployment to ensure stable and correct operation.
Ongoing technical support throughout the product lifecycle to ensure reliable performance in enterprise and carrier-grade networks.
LINK-PP provides after-sales support for the smooth deployment and reliable operation of the optical modules.
15-day no-reason return and refund
Free replacement for dead-on-arrival (DOA) or defective items within the initial period
Free repair services for manufacturing defects throughout the warranty period
Warranty exclusions and conditions apply
Compatible | LINK-PP | LINK-PP | LINK-PP | LINK-PP | LINK-PP | LINK-PP |
Data Rate (Max) | 1.25Gbps | 1.25Gbps | 1.25Gbps | 1.25Gbps | 1.25Gbps | 1.25Gbps |
Wavelength | 1550nm-TX/1310nm-RX | 1550nm-TX/1310nm-RX | 1550nm-TX/1310nm-RX | 1550nm-TX/1310nm-RX | 1550nm-TX/1310nm-RX | 1310nm-TX/1550nm-RX |
Connector | Simplex SC | Simplex SC | Simplex SC | Simplex SC | Simplex SC | Simplex SC |
Cable Distance (Max) | 20km | 10km | 3km | 40km | 20km | 20km |
Cable Type | SMF | SMF | SMF | SMF | SMF | SMF |
TX Power | -9 to 0dBm | -9 to 0dBm | -9 to 0dBm | -9 to 0dBm | -9 to 0dBm | -9 to 0dBm |
Receiver Sensitivity | -23dBm | -23dBm | -23dBm | -24dBm | -23dBm | -23dBm |
Operating Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | 0 to 70°C | -40 to 85°C |
Form Factor | SFP | SFP | SFP | SFP | SFP | SFP |
Transmitter Type | DFB | DFB | FP | DFB | DFB | FP |
Receiver Type | PIN | PIN | PIN | PIN | PIN | PIN |
Receiver Overload | -3dBm | -3dBm | -3dBm | -3dBm | -3dBm | -3dBm |
DOM Support | Yes | Yes | Yes | Yes | Yes | Yes |
| Pictures | ID# | Description | Price | Stock | Add to Cart |
Q: We are planning to use existing single-mode fiber runs. What fiber type is this 1550nm-TX/1310nm-RX module compatible with? By J***n on 2026-06-01
A: This 1G BiDi SFP uses a Simplex SC connector and is specifically designed to work over standard 9/125碌m single-mode fiber (SMF). Just ensure you pair it with the opposite 1310nm-TX/1550nm-RX module on the other end to establish the link! By admin on 2026-06-01
Q: Are these modules certified for global telecom compliance and safety standards? We have strict regulatory requirements for our infrastructure upgrades. By M***z on 2025-07-12
A: Yes, they fully comply with international industry standards, including CE, FCC, RoHS, and FDA requirements. We strictly adhere to MSA specifications, ensuring complete compliance for enterprise and global telecom deployments. By admin on 2025-07-12
Q: Our purchasing team is trying to cut costs. Does this Simplex SC DDM SMF optical transceiver perform just as well as the expensive original OEM brands? By C***l on 2025-07-03
A: You'll get exactly the same premium performance. Our transceivers use top-tier DFB lasers and PIN receivers, matching the throughput, DDM accuracy, and long-term reliability of original brands, but at a fraction of the cost, maximizing your ROI. By admin on 2025-07-03
Q: We run a mix of Cisco and Juniper switches in our local ISP network. Will this 1G BiDi SFP module play nice with them without triggering unsupported transceiver errors? By E***n on 2025-04-06
A: Yes! This transceiver strictly complies with MSA standards. It features perfect OEM interoperability, so it will seamlessly plug into your Cisco, Juniper, and other major brand gear without throwing any "unsupported" alarms. By admin on 2025-04-06
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