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The LINK-PP LS-SC55311G-03I is a high-performance 1.25G bidirectional SFP transceiver designed for robust Gigabit Ethernet applications. Operating over single-mode fiber, this industrial-grade optical module ensures stable data transmission in harsh environments from -40°C to +85°C. It perfectly complies with SFP MSA standards, offering exceptional reliability for advanced networking infrastructure.
| LINK-PP Part Number | LS-SC55311G-03I | Vendor Name | LINK-PP |
| Form Factor | SFP | Max Data Rate | 1.25Gbps |
| Wavelength | 1550nm-TX/1310nm-RX | Max Cable Distance | 3km |
| Connector | Simplex SC | Media |
SMF |
| Transmitter Type | FP | 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 |
Leveraging advanced WDM technology, this hot-pluggable SFP module minimizes fiber cabling costs by enabling bi-directional communication over a single strand. Equipped with a simplex SC interface and integrating a 1550nm FP laser with a PIN photodiode, it delivers highly efficient network performance.
As a premier 1G BiDi SFP optical module, it provides a cost-effective single-mode transceiver solution for optical links. Its robust design guarantees seamless integration into standard switches and routers, boosting overall system efficiency.
Built for extreme conditions, this industrial SFP facilitates reliable 1G connectivity for marine vessel communication. Its exceptional temperature tolerance and rugged networking design ensure uninterrupted data flow across maritime operations and harsh offshore environments.
Utilizing an asymmetrical 1550nm-TX/1310nm-RX wavelength configuration, this transceiver optimizes spectral efficiency. Paired with a complementary receiver, it establishes a flawless duplex optical connection, maximizing bandwidth utilization on existing single-mode fiber architectures.
Designed for short-reach SMF links, this Gigabit module easily supports a 3km transmission distance. It delivers a solid optical budget, guaranteeing minimal signal attenuation and flawless data integrity across campus networks or industrial automation facilities.
Featuring a standard simplex SC interface, this plug-and-play module simplifies physical installation. The SC optical connector provides a secure, snap-in mechanism for the single fiber connection, significantly reducing deployment time in dense telecommunication cabinets.
Compliant with SFF-8472, the integrated digital diagnostic monitoring (DDM or DOM) feature empowers administrators with real-time tracking of laser bias, temperature, voltage, and optical power. This proactive diagnostics capability accelerates network troubleshooting and maintenance.
Demonstrating our commitment to global compliance, this 1G SFP transceiver meets the highest telecom safety standards, guaranteeing secure, interference-free integration into enterprise and industrial IT infrastructures worldwide.
Every module undergoes a rigorous quality control regimen. Our comprehensive optical transceiver testing program evaluates both physical durability and optical performance to ensure zero-defect deployments for clients.
This premier product holds major international approvals, including CE, FCC, UKCA, UL, and REACH certifications. It is also fully RoHS compliant, assuring environmental safety and regulatory alignment.
Engineered to be fully MSA compliant, this transceiver is certified for flawless multi-vendor compatibility. It seamlessly operates with mainstream switches and networking equipment, preventing costly interoperability issues.
Extensive factory verification processes validate every specification, ensuring exceptional performance reliability and long-term stability for mission-critical networking and communication tasks.
Verifies center wavelength accuracy and spectral width, ensuring optimal 1550nm/1310nm signal isolation.
Confirms signal integrity and transmitter compliance with IEEE standards for distortion-free Gigabit transmission.
Measures data transmission accuracy under continuous load to guarantee a flawlessly stable network connection.
Validates industrial thermal endurance, confirming stable component operation from freezing -40°C to scorching +85°C.
We utilize secure logistics frameworks to ensure your optical networking equipment arrives safely, providing expedited worldwide delivery tailored for urgent project timelines.
Enclosed in ESD safe packaging to prevent electrical damage during handling.
Cushioned materials absorb physical impacts, keeping the delicate optical components intact.
Optimized warehouse operations ensure rapid fulfillment and immediate dispatch of orders.
Partnering with trusted couriers for traceable, reliable, and prompt global distribution.
Experience hassle-free network upgrades with plug-and-play installation. Simply insert the transceiver into any MSA-compatible port, connect the single-mode fiber via the SC receptacle, and instantly establish a robust, industrial-grade Gigabit link without complex software configuration.
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-03I 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 | 1550nm-TX/1310nm-RX |
Connector | Simplex SC | Simplex SC | Simplex SC | Simplex SC | Simplex SC | Simplex SC |
Cable Distance (Max) | 3km | 20km | 10km | 40km | 3km | 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 | 0 to 70°C |
Form Factor | SFP | SFP | SFP | SFP | SFP | SFP |
Transmitter Type | FP | DFB | DFB | DFB | FP | DFB |
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: I'm looking at a massive machine room batch deployment and need around 500 units. Do you offer any volume discounts for B2B procurement? By S***k on 2026-05-19
A: We sure do! For large-scale fiber network deployments, we provide tiered B2B pricing. You can apply our bulk coupon codes at checkout or contact our sales team directly for a custom quote. By admin on 2026-05-19
Q: Our enterprise requires strict adherence to industry standards for data center interconnects. Is this 1550nm-TX/1310nm-RX optic fully compliant with SFF-8472 and standard safety protocols? By D***s on 2026-04-09
A: Definitely. It fully complies with the SFF-8472 standard for Digital Diagnostic Monitoring, along with strict RoHS, CE, and FCC global compliance, ensuring safe and standardized integration into your network. By admin on 2026-04-09
Q: Can you confirm the exact fiber interface? We want to make sure it matches our existing campus single-mode fiber runs. By E***s on 2026-01-03
A: This module uses a Simplex SC connector interface. Since it utilizes WDM technology for bidirectional transmission, you only need one single-mode fiber (SMF) strand per link to reach the full 3km distance. By admin on 2026-01-03
Q: Hi guys, we run a mix of Cisco, Juniper, and Ubiquiti gear in our server rooms. Will this 1G BiDi SFP module play nice with all of them without throwing third-party optic errors? By W***a on 2025-07-24
A: Yes, absolutely! This transceiver is strictly SFP MSA compliant and designed for seamless multi-brand switch compatibility. Just plug it in, and it’s recognized instantly like the OEM optic. By admin on 2025-07-24
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