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LS-BL49311G-20I 1g bidi sfp 1490nm-tx 1310nm-rx 20km dom simplex lc smf optical transceiver module (industrial)
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LINK-PP LS-BL49311G-20I 1G BiDi SFP 1490nm-TX/1310nm-RX 20km DOM Simplex LC SMF Optical Transceiver Module (Industrial)

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Product summary

Product
LINK-PP LS-BL49311G-20I 1G BiDi SFP 1490nm-TX/1310nm-RX 20km DOM Simplex LC SMF Optical Transceiver Module (Industrial)
SKU
183658
P/N
LS-BL49311G-20I
Price
$ 15.5
Stock
1300 in Stock
Sold
780
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
28 Reviews
3 Questions
780 Sold
$ 15.5 0% OFF )
Free shipping. For wholesale pricing, please contact us directly.
Qty (pcs) :
Unit Price :
1
$ 15.5
100
$ 14.725
1000
$ 14.26
3000
$ 13.795
6000
$ 13.33
Manufacture: LINK-PP P/N: LS-BL49311G-20I SKU: 183658
Compatible:
LINK-PP
Compatible P/N:
LS-BL31551G-02C | 2km
LS-BL55311G-02C | 2km
LS-BL31551G-03C | 3km
LS-BL31551G-03I | 3km
LS-BL55311G-03C | 3km
LS-BL55311G-03I | 3km
LS-BL31491G-10C | 10km
LS-BL31491G-10I | 10km
LS-BL31551G-10C | 10km
LS-BL31551G-10I | 10km
LS-BL31551GE-10C | 10km
LS-BL49311G-10C | 10km
LS-BL49311G-10I | 10km
LS-BL49551G-10C | 10km
LS-BL49551G-10I | 10km
LS-BL55311G-10C | 10km
LS-BL55311G-10I | 10km
LS-BL55311GE-10C | 10km
LS-BL55491G-10C | 10km
LS-BL55491G-10I | 10km
LS-BL31551G-15C | 15km
LS-BL31491G-20C | 20km
LS-BL31491G-20I | 20km
LS-BL31551G-20C | 20km
LS-BL31551G-20I | 20km
LS-BL49311G-20C | 20km
LS-BL49311G-20I | 20km
LS-BL49551G-20C | 20km
LS-BL55311G-20C | 20km
LS-BL55311G-20I | 20km
LS-BL55491G-20C | 20km
LS-BL31491G-40C | 40km
LS-BL31491G-40I | 40km
LS-BL31551G-40C | 40km
LS-BL31551G-40I | 40km
LS-BL49311G-40C | 40km
LS-BL49311G-40I | 40km
LS-BL55311G-40C | 40km
LS-BL55311G-40I | 40km
LS-BL31551G-60C | 60km
LS-BL31551G-60I | 60km
LS-BL49551G-60C | 60km
LS-BL55311G-60C | 60km
LS-BL55311G-60I | 60km
LS-BL55491G-60C | 60km
LS-BL27331G-80C | 80km
LS-BL33271G-80C | 80km
LS-BL49551G-80C | 80km
LS-BL49551G-80I | 80km
LS-BL55491G-80C | 80km
LS-BL55491G-80I | 80km
LS-BL49551G-A0C | 100km
LS-BL49551G-A0I | 100km
LS-BL55491G-A0C | 100km
LS-BL55491G-A0I | 100km
LS-BL49551G-A2C | 120km
LS-BL49551G-A2I | 120km
LS-BL55491G-A2C | 120km
LS-BL55491G-A2I | 120km
LS-BL49551G-A5C | 150km
LS-BL49551G-A5I | 150km
LS-BL55491G-A5C | 150km
LS-BL55491G-A5I | 150km
LS-BL49551G-A6C | 160km
LS-BL49551G-A6I | 160km
LS-BL55491G-A6C | 160km
LS-BL55491G-A6I | 160km
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.
Stock:
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Quantity:
( Min. Order {{detail_data.prodInfo.minimum_ordered_quantity}} )
Total Price:
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LINK-PP LS-BL49311G-20I 1G BiDi SFP Specifications

The LINK-PP LS-BL49311G-20I 1G BiDi SFP transceiver provides a data transmission speed of 1.25 Gbps over a distance of up to 20 km using single-mode fiber. It operates at 1490nm for transmission and 1310nm for reception. This industrial-grade module offers stable, reliable connectivity, even in challenging environments.

LINK-PP Part Number LS-BL49311G-20I Vendor Name LINK-PP
Form Factor SFP Max Data Rate 1.25Gbps
Wavelength 1490nm-TX/1310nm-RX Max Cable Distance 20km
Connector Simplex LC Media SMF
Transmitter Type DFB BiDi Receiver Type

PIN

TX Power -9 to 0dBm RX Power -23 to -1dBm
Receiver Sensitivity <-23dBm Receiver Overload -1dBm
Operating Temperature Range -40 to 85°C Protocols

Fast Ethernet, Gigabit Fibre Channel, MSA Compliant

Key Features of LINK-PP LS-BL49311G-20I 1G BiDi SFP

Featuring reliable 1.25 Gbps performance and true plug-and-play ease, this LINK-PP LS-BL49311G-20I 1G BiDi SFP module allows for simple deployment. It includes a high-reliability  DFB laser, a sensitive PIN/TIA receiver, a simplex LC interface, and an integrated DOM. Its BiDi technology enables full-duplex communication over a single fiber, boosting fiber utilization and cutting cabling complexity and infrastructure costs.

LINK-PP LS-BL49311G-20I 1G BiDi SFP Optical Module

This LINK-PP LS-BL49311G-20I BiDi SFP optical module employs complementary transmit and receive wavelengths to achieve simultaneous bidirectional communication over a single fiber. Its efficient design enhances fiber efficiency and presents a cost-effective pathway to expand network capacity while avoiding incremental fiber deployment.

LS-BL49311G-20I: Reliable 1.25 Gbps Connectivity for Efficient Gigabit Connectivity

The LINK-PP LS-BL49311G-20I module is designed to provide consistent and stable performance, with data transfer speeds of up to 1.25 Gbps, ensuring Gigabit connectivity across a wide range of applications.

LS-BL49311G-20I Module with 1490nm-TX/1310nm-RX Wavelength

The LINK-PP LS-BL49311G-20I 1G BiDi SFP module uses 1490nm transmission and 1310nm reception wavelengths to achieve simultaneous bidirectional communication over a single fiber. This design improves fiber utilization and simplifies long-distance network connections.

LS-BL49311G-20I Module Supporting 20km Transmission

Delivering link distances of up to 20 km over single-mode fiber, this LINK-PP LS-BL49311G-20I 1G BiDi module excels in industrial networking, campus connectivity, and other remote link applications requiring consistent, long-range performance.

LS-BL49311G-20I Module with Simplex LC Interface

Designed with a simplex LC port, the LINK-PP LS-BL49311G-20I BiDi SFP module supports bidirectional communication over one fiber, reducing infrastructure needs and simplifying cable management.

LS-BL49311G-20I Module with DOM for Real-Time Monitoring

With DOM integrated, this LINK-PP LS-BL49311G-20I 1G BiDi SFP module offers continuous visibility into critical parameters such as temperature, voltage, and optical power, accelerating fault diagnosis and enhancing network dependability.


LINK-PP LS-BL49311G-20I 1G BiDi SFP Certification

Compliant with ISO 9001, CE, RoHS, and FCC standards, every LINK-PP module delivers safe, compliant, and eco-friendly performance across global deployments.

Optical Transceivers Testing

Each LINK-PP module undergoes detailed performance validation and environmental testing to ensure reliability in practical network environments.

LS-BL49311G-20I Quality Certifications

Quality assurance processes confirm compliance with international standards and long-term durability.

LS-BL49311G-20I Certified for Reliable Host-Device Compatibility

Tested for interoperability with LINK-PP systems to deliver dependable, plug-and-play performance.


Rigorous Testing Ensures Reliable SFP Performance

Every LINK-PP module is evaluated through strict testing to ensure reliable operation and signal stability. For more details, visit the LINK-PP Test Support Center.

Optical

Optical Spectrum Test

Confirms precise wavelength output for compliant operation.

Optical

Eye Pattern Test

Eye pattern analysis reveals a clear and stable signal.

Optical

Bit Error Rate Test

Reports the frequency of bit errors to judge signal quality.

Optical

Temperature Test

Examines resistance to thermal stress for long-term reliability.


Product Shipping for LINK-PP LS-BL49311G-20I 1G BiDi SFP

With a focus on speed and security, LINK-PP provides ready-to-install modules supported by a robust worldwide logistics network.

Anti-Static Protective Packaging

Anti-Static Protective Packaging

Anti-static safeguard packaging reduces electrostatic risks to internal components.

Shock-Resistant Transport Protection

Shock-Resistant Transport Protection

Transit-ready protective packing helps prevent damage during shipping.

Fast Order Processing and Dispatch

Fast Order Processing and Dispatch

Quick order dispatch for quicker delivery.

Global Logistics and International Delivery

Global Logistics and International Delivery

Worldwide logistics support enables efficient cross-border distribution.

LINK-PP LS-BL49311G-20I 1G BiDi SFP Usage Demonstration

This LINK-PP LS-BL49311G-20I 1G BiDi SFP module offers a straightforward setup for industrial networks and long-distance links. Simply insert it into a compatible SFP port, connect a single strand of single-mode fiber, pair it with a complementary BiDi module, and you're ready for stable bidirectional communication.

LS-BL49311G-20I 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-BL49311G-20I 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-BL49311G-20I 1G BiDi 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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P***n
Bulgaria
Verified Purchase
5 .0
2026-05-10
Nice industrial optical module for harsh locations. We installed several units in outdoor enclosures and they have maintained stable gigabit links.
E***z
Hungary
Verified Purchase
5 .0
2026-03-30
Perfect for our fiber-to-building project. The 1490nm/1310nm BiDi wavelength design reduced fiber usage and helped us complete the installation faster.
F***e
Bulgaria
Verified Purchase
5 .0
2026-03-07
We used these 1G BiDi SFP 1490nm-TX/1310nm-RX modules for a factory campus backbone upgrade. The simplex LC SMF design saved fiber resources, and the 20km transmission distance works well across our buildings. Compatibility with our Cisco and H3C switches was smooth.
M***s
Bulgaria
Verified Purchase
5 .0
2026-03-02
Used for a base station backhaul project where fiber distance was around 18km. This 1490nm TX/1310nm RX BiDi SFP handled the link without any adjustment. The industrial temperature rating gives us extra confidence for outdoor cabinets.
R***t
Norway
Verified Purchase
5 .0
2026-01-15
Excellent 20km reach for our campus fiber network.
R***z
Romania
Verified Purchase
5 .0
2026-01-05
Fast deployment and good performance. We tested the SFP modules with several vendor switches before production rollout. No compatibility problems so far.
P***s
Israel
Verified Purchase
5 .0
2025-11-16
Great compatibility with our industrial switches. =)
A***n
Australia
Verified Purchase
5 .0
2025-11-03
We purchased these for a server room refresh and batch deployment. Installation was simple, DOM diagnostics were available immediately, and the modules worked well with our existing network hardware.
R***e
Republic of Korea
Verified Purchase
5 .0
2025-09-09
Reliable industrial SFP for remote sites.
F***s
Philippines
Verified Purchase
5 .0
2025-08-21
Used these for a large-scale network rollout with many remote endpoints. Stable 1000Mbps connectivity, good DOM monitoring, and simple LC fiber installation. Highly recommended.
H***z
Russian Federation
Verified Purchase
5 .0
2025-08-15
Reliable choice for OEM compatible SFP replacement. The modules passed our lab testing with no issues, and bulk ordering was easy.
R***r
Japan
Verified Purchase
5 .0
2025-08-01
Excellent choice for network expansion. The 1000BASE-BX 20km SFP module supports our fiber distribution project well, especially where only one fiber strand was available.
A***n
Norway
Verified Purchase
5 .0
2025-06-26
Stable 1G transmission over 20km SMF, exactly as described. The LS-BL49311G-20I compatible transceiver is a good fit for long-distance office and industrial Ethernet links.
E***t
Germany
Verified Purchase
5 .0
2025-06-13
Worked as expected in our gigabit access network. The optical budget is suitable for our 20km links, and the industrial temperature range is a major advantage for remote installations.
S***s
Russian Federation
Verified Purchase
5 .0
2025-05-05
The product quality is impressive for the price. We needed industrial-grade BiDi SFPs for outdoor communication cabinets, and these modules provided reliable connectivity with useful DDM monitoring.
S***n
Israel
Verified Purchase
5 .0
2025-04-20
We tested this LINK-PP 1G BiDi SFP transceiver across Cisco, Huawei, and H3C switches. The coding and interoperability were good, and the DOM information matched our diagnostic tools.
A***e
Brunei Darussalam
Verified Purchase
5 .0
2025-03-19
Solid 1G BiDi SFP module for our fiber links.
S***s
Maldives
Verified Purchase
4 .0
2025-02-25
Performance is good and the module works correctly. Shipping packaging could be improved slightly, but the 1G BiDi SFP itself has been stable in our network.
F***z
Mexico
Verified Purchase
5 .0
2025-01-10
Very reliable replacement for expensive branded optics. The simplex LC connector and single-mode fiber support helped simplify our existing fiber layout. Great product for enterprise fiber extension projects. =D
S***z
New Zealand
Verified Purchase
5 .0
2025-01-07
Good value for large deployments. We installed these 1000BASE-BX compatible SFP modules in a mixed-brand environment with Huawei and MikroTik equipment. The OEM compatibility testing passed quickly, and the optical performance has been consistent. ;)
T***z
Libyan Arab Jamahiriya
Verified Purchase
5 .0
2025-01-03
Great option for telecom access networks. We deployed the industrial BiDi SFP 1G 20km LC SMF transceiver in several remote locations, and the connection has stayed stable with no packet loss. The DOM feature makes troubleshooting much easier.
F***z
Macao
Verified Purchase
5 .0
2024-11-13
Works perfectly :)
M***z
Romania
Verified Purchase
5 .0
2024-08-25
Plugged in and worked right away :D
A***r
Turkey
Verified Purchase
4 .0
2024-07-08
Product arrived with slightly delayed delivery, but the optical performance and compatibility are excellent. We are already planning another purchase.
K***s
Indonesia
Verified Purchase
5 .0
2024-04-01
Clean install, stable signal, no issues.
S***r
Japan
Verified Purchase
5 .0
2024-03-13
Good DOM monitoring and accurate optical readings.
S***k
Russian Federation
Verified Purchase
5 .0
2024-02-29
These LINK-PP LS-BL49311G-20I compatible SFP modules replaced higher-cost OEM optics in our network. We tested them on multiple gigabit switches and media converters, and the 1490nm transmit / 1310nm receive wavelength pairing performed reliably over 20km single mode fiber.
J***y
Brazil
Verified Purchase
5 .0
2024-01-20
Bought a batch of industrial 1G BiDi SFP transceiver modules for outdoor cabinets and access points. The -40°C to +85°C operating range is exactly what we needed. DDM data is helpful for checking Tx/Rx power during maintenance. Very satisfied :-)
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