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LS-SC55311G-03I 1g sfp bidi 1550nm-tx 1310nm-rx 3km simplex sc dom smf optical transceiver module (industrial)
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LINK-PP LS-SC55311G-03I 1G SFP BiDi 1550nm-TX/1310nm-RX 3km Simplex SC DOM SMF Optical Transceiver Module (Industrial)

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Product summary

Product
LINK-PP LS-SC55311G-03I 1G SFP BiDi 1550nm-TX/1310nm-RX 3km Simplex SC DOM SMF Optical Transceiver Module (Industrial)
SKU
202197
P/N
LS-SC55311G-03I
Price
$ 10.5
Stock
50 in Stock
Sold
950
For Order Over $1000 Get $15.00 Off , Code: Linkpp15
For Order Over $3000 Get $50.00 Off , Code: Linkpp50
For Order Over $5000 Get $100.00 Off , Code: Linkpp100
New Users: $10 Coupon for Orders , Code: linkpp2610
25 Reviews
4 Questions
950 Sold
Shipping:
Free Shipping
to United States via FedEx
Estimated delivery time : 3 - 10 days.
5-Year Warranty 30-Day Returns 30-Day Exchange
Warranty
  • Providing industry-leading 5-year warranty.
  • Read the table for details of all products' warranty.
Returns & Exchange
  • Refunds will be received about 5 business days after the receipt of returned items.
  • Items in stock for replacement can be shipped within 1 business day.
  • Read the full return policy for details.
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LINK-PP LS-SC55311G-03I 1G BiDi SFP Specifications

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

Key Features of LINK-PP LS-SC55311G-03I 1G BiDi SFP

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.

LINK-PP LS-SC55311G-03I 1G BiDi SFP Optical Module

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.

LS-SC55311G-03I: 1G Connectivity for Marine Vessel Communication

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.

LS-SC55311G-03I Module with 1550nm-TX and 1310nm-RX Wavelength

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.

LS-SC55311G-03I Module Supporting 3km Transmission

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.

LS-SC55311G-03I Module with Simplex SC Interface

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.

LS-SC55311G-03I Module with DOM for Real-Time Monitoring

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.


LINK-PP LS-SC55311G-03I 1G SFP Certification

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.

Optical Transceivers Testing

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.

LS-SC55311G-03I Quality Certifications

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.

LS-SC55311G-03I Certified for Reliable Host-Device Compatibility

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.


Rigorous Testing Ensures Reliable SFP Performance

Extensive factory verification processes validate every specification, ensuring exceptional performance reliability and long-term stability for mission-critical networking and communication tasks.

Optical

Optical Spectrum Test

Verifies center wavelength accuracy and spectral width, ensuring optimal 1550nm/1310nm signal isolation.

Optical

Eye Pattern Test

Confirms signal integrity and transmitter compliance with IEEE standards for distortion-free Gigabit transmission.

Optical

Bit Error Rate Test

Measures data transmission accuracy under continuous load to guarantee a flawlessly stable network connection.

Optical

Temperature Test

Validates industrial thermal endurance, confirming stable component operation from freezing -40°C to scorching +85°C.


Product Shipping for LINK-PP LS-SC55311G-03I 1G SFP

We utilize secure logistics frameworks to ensure your optical networking equipment arrives safely, providing expedited worldwide delivery tailored for urgent project timelines.

Anti-Static Protective Packaging

Anti-Static Protective Packaging

Enclosed in ESD safe packaging to prevent electrical damage during handling.

Shock-Resistant Transport Protection

Shock-Resistant Transport Protection

Cushioned materials absorb physical impacts, keeping the delicate optical components intact.

Fast Order Processing and Dispatch

Fast Order Processing and Dispatch

Optimized warehouse operations ensure rapid fulfillment and immediate dispatch of orders.

Global Logistics and International Delivery

Global Logistics and International Delivery

Partnering with trusted couriers for traceable, reliable, and prompt global distribution.

LINK-PP LS-SC55311G-03I 1G SFP Usage Demonstration

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.

LS-SC55311G-03I Technical Support

LINK-PP provides professional technical support, including pre-sales consultation, compatibility verification, and post-deployment troubleshooting to ensure smooth network operation.

Pre-Sales Technical Consultation

Pre-Sales Technical Consultation

Professional technical guidance to help customers select the most suitable LS-SC55311G-03I modules based on network architecture and application requirements.

Compatibility Verification Support

Compatibility Verification Support

Compatibility checks and validation to ensure seamless operation with Cisco switches and other supported networking platforms.

Deployment & Installation Assistance

Deployment & Installation Assistance

Step-by-step support for installation, configuration, and initial deployment to ensure stable and correct operation.

Long-Term Technical Assurance

Long-Term Technical Assurance

Ongoing technical support throughout the product lifecycle to ensure reliable performance in enterprise and carrier-grade networks.

LINK-PP LS-SC55311G-03I 1G SFP After-Sales Assurance

LINK-PP provides after-sales support for the smooth deployment and reliable operation of the optical modules.

15 days

15-day no-reason return and refund

Free maintenance or replacement

Free replacement for dead-on-arrival (DOA) or defective items within the initial period

Free maintenance

 Free repair services for manufacturing defects throughout the warranty period

Limitations

Warranty exclusions and conditions apply

Model Comparison Table

LINK-PP

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R***k
Tunisia
Verified Purchase
5 .0
2026-07-14
Excellent simplex SC connector transceiver. ✨
S***n
Canada
Verified Purchase
5 .0
2026-07-09
Perfect single-mode fiber module for campus networking.
R***s
Ukraine
Verified Purchase
5 .0
2026-06-15
Awesome 1G BiDi SFP for my NAS setup. SC fiber connection was super easy!
D***z
Brazil
Verified Purchase
5 .0
2026-06-13
Fast fiber network setup using a single strand. The simplex SC interface is incredibly convenient!
S***n
Chile
Verified Purchase
5 .0
2026-05-28
Replaced our old OEM optics with these. Link came up instantly on 1310nm/1550nm wavelength.
W***s
Italy
Verified Purchase
5 .0
2026-05-25
Perfect for our machine room batch deployment. Seamless multi-brand switch compatibility right out the box.
A***z
Spain
Verified Purchase
5 .0
2026-03-25
Needed a robust industrial optical module for an offshore rig. These handled the job perfectly.
M***s
Germany
Verified Purchase
5 .0
2026-03-19
Solid build quality! The DOM tracking helps me keep an eye on temps and voltage.
J***n
Belgium
Verified Purchase
4 .0
2026-02-24
Box was slightly dented upon arrival, but the 1G BiDi SFP works perfectly fine.️
J***n
Belgium
Verified Purchase
5 .0
2026-02-04
SFP MSA compliant, plugged in and worked.
S***z
Belgium
Verified Purchase
5 .0
2026-01-09
Reliable gigabit ethernet connectivity for our outdoor security cameras. Wide temp operation is a lifesaver.
J***g
Ecuador
Verified Purchase
5 .0
2026-01-03
Got a batch for our mini data center interconnect. DDM support makes remote monitoring a breeze for our NOC team. Optical budget is solid, and they run perfectly on our edge routers. (⌐■_■)
M***n
Ukraine
Verified Purchase
5 .0
2025-12-05
Good WDM technology, saves us extra fiber.
J***n
Brazil
Verified Purchase
5 .0
2025-11-11
Great price for bulk purchasing!
A***a
Brazil
Verified Purchase
5 .0
2025-11-04
Deployed these 1550nm-TX/1310nm-RX modules in our outdoor cabinets for campus fiber ring. The -40 to 85°C industrial rating is legit. DOM metrics stay stable even during freezing nights. Great OEM compatibility!
W***e
Finland
Verified Purchase
5 .0
2025-10-29
Works flawlessly in our outdoor telecom cabinets.
J***s
Austria
Verified Purchase
5 .0
2025-10-07
3km distance confirmed. No dropouts at all.
D***l
Argentina
Verified Purchase
4 .0
2025-10-06
Delivery was a day late. The transceiver modules are solid though, DOM reads accurately.
J***k
United Arab Emirates
Verified Purchase
5 .0
2025-09-05
Flawless compatibility with our core switches.
T***g
Canada
Verified Purchase
5 .0
2025-08-13
DDM readings are accurate. Great 1G SFP!
D***s
Bolivia
Verified Purchase
5 .0
2025-08-04
Tested these industrial 1G BiDi SFPs for cell site backhaul across various Cisco and Juniper switches. Flawless interoperability and 3km distance over SMF holds up with zero packet loss. Excellent B2B choice.
D***s
Brazil
Verified Purchase
5 .0
2025-07-14
True industrial grade. Highly recommend! (❁´◡`❁)
A***n
Finland
Verified Purchase
5 .0
2025-06-04
Good transceiver modules for B2B procurement. The 3km transmission distance over SMF is totally accurate.
B***n
India
Verified Purchase
5 .0
2025-05-28
Upgrading our factory automation network required rugged SFPs. The simplex SC connector saves fiber strands, and the wide temp range handles the non-AC warehouse perfectly. Cost-effective single-mode transceiver for sure.
A***s
Egypt
Verified Purchase
5 .0
2025-05-14
Sturdy 1.25G module for harsh environments.
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