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LS-BL55491G-A6I 1g bidi sfp 1550nm-tx 1490nm-rx 160km dom simplex lc smf transceiver module (industrial)
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LINK-PP LS-BL55491G-A6I 1G BiDi SFP 1550nm-TX/1490nm-RX 160km DOM Simplex LC SMF Transceiver Module (Industrial)

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Product summary

Product
LINK-PP LS-BL55491G-A6I 1G BiDi SFP 1550nm-TX/1490nm-RX 160km DOM Simplex LC SMF Transceiver Module (Industrial)
SKU
201976
P/N
LS-BL55491G-A6I
Price
$ 60
Stock
50 in Stock
Sold
750
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
47 Reviews
5 Questions
750 Sold
$ 60 0% OFF )
Free shipping. For wholesale pricing, please contact us directly.
Qty (pcs) :
Unit Price :
1
$ 60
100
$ 57
1000
$ 55.2
3000
$ 53.4
6000
$ 51.6
Manufacture: LINK-PP P/N: LS-BL55491G-A6I SKU: 201976
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:
{{parseInt(detail_data.left_num) ? detail_data.left_num +' in Stock' :detail_data.zeroStockOrder==0?'Out of Stock':'Available'}} .
Quantity:
( Min. Order {{detail_data.prodInfo.minimum_ordered_quantity}} )
Total Price:
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LINK-PP LS-BL55491G-A6I 1G BiDi SFP Specifications

The LINK-PP LS-BL55491G-A6I is a rugged industrial optical transceiver engineered for highly demanding network environments. This premium Gigabit Ethernet SFP delivers exceptionally stable 1.25Gbps single-mode module performance across extreme temperatures ranging from -40°C to 85°C. Utilizing advanced DFB and APD technologies, it guarantees outstanding link reliability for extended telecommunication infrastructure.

LINK-PP Part Number LS-BL55491G-A6I Vendor Name LINK-PP
Form Factor SFP Max Data Rate 1.25Gbps
Wavelength 1550nm-TX/1490nm-RX Max Cable Distance 160km
Connector Simplex LC Media SMF
Transmitter Type
DFB Receiver Type
APD
TX Power 0 to +5dBm RX Power -28 to -1dBm
Receiver Sensitivity <-34dBm DOM Support Yes
Operating Temperature Range -40 to 85°C Protocols

SFP MSA、SFF-8472

Key Features of LINK-PP LS-BL55491G-A6I 1G BiDi SFP

This bi-directional SFP maximizes fiber utilization by adopting advanced WDM optical module technology. As a high-performance single fiber transceiver, it ensures reliable bi-directional data flow over existing single-mode fiber infrastructure, significantly reducing cabling costs while maintaining robust, long-haul gigabit network connections.

LINK-PP LS-BL55491G-A6I 1G BiDi SFP Optical Module

Functioning as a highly reliable 1G optical module, this hot-pluggable transceiver seamlessly integrates into industrial networking equipment. Its robust design guarantees sustained gigabit throughput, making it ideal for harsh outdoor telecommunication enclosures and critical data environments.

LS-BL55491G-A6I: 1G Connectivity for DAS Monitoring

Engineered for critical remote network monitoring, this module provides seamless DAS fiber connectivity. It ensures uninterrupted signal transmission between baseband units and remote radio heads, delivering the essential high-speed gigabit bandwidth required for comprehensive antenna systems.

LS-BL55491G-A6I Module with 1550nm-TX and 1490nm-RX Wavelength

Utilizing specific BIDI wavelength multiplexing, the transceiver integrates a powerful 1550nm DFB laser alongside a highly sensitive 1490nm APD receiver. This specialized optic combination ensures precise signal integrity and minimal dispersion across extensive long-haul fiber connections.

LS-BL55491G-A6I Module Supporting 160km Transmission

Designed to conquer extreme distances, this 160km SFP module eliminates the immediate need for costly inline amplifiers. As an ultra-long haul transceiver, it provides a massive optical budget to bridge remote network nodes reliably.

LS-BL55491G-A6I Module with Simplex LC Interface

Featuring a standardized Simplex LC connector, this interface significantly simplifies physical network deployments. The precision-engineered LC optical interface ensures extremely low insertion loss, maintaining tight fiber alignment to maximize signal retention over lengthy single-mode cables.

LS-BL55491G-A6I Module with DOM for Real-Time Monitoring

Equipped with advanced Digital Optical Monitoring, this DOM SFP allows network administrators to access crucial optical parameter tracking. It enables precise, real-time observation of laser temperature, transceiver voltage, and optical power levels to prevent link failures.


LINK-PP LS-BL55491G-A6I 1G SFP Certification

As a fully regulatory compliant SFP, this industry standard optic meets rigorous global safety regulations, ensuring secure and hazard-free deployment in diverse international enterprise networks.

Optical Transceivers Testing

Every unit undergoes a comprehensive transceiver testing procedure. Our highly stringent quality control optics program ensures stable gigabit performance and effectively minimizes defect rates before network deployment.

LS-BL55491G-A6I Quality Certifications

This CE FCC certified SFP is also a deeply trusted UL listed transceiver. It fully complies with strict UKCA and REACH environmental and electrical safety directives.

LS-BL55491G-A6I Certified for Reliable Host-Device Compatibility

Engineered as a universally switch compatible SFP, this highly interoperable transceiver guarantees seamless integration with major industrial networking equipment, ensuring plug-and-play functionality without vendor lock-in.


Rigorous Testing Ensures Reliable SFP Performance

Thorough optical performance validation is conducted on every single unit, guaranteeing exceptional stability and flawless data transmission across complex networking architectures.

Optical

Optical Spectrum Test

Precision wavelength accuracy is verified to ensure optimal BIDI laser signal integrity.

Optical

Eye Pattern Test

Advanced signal clarity assessment ensures clean gigabit data transmission with minimal jitter.

Optical

Bit Error Rate Test

Continuous low BER validation guarantees virtually error-free communication over extreme fiber distances.

Optical

Temperature Test

Severe industrial thermal testing confirms flawless operation between -40°C and 85°C environments.


Product Shipping for LINK-PP LS-BL55491G-A6I 1G SFP

Our streamlined transceiver fulfillment process guarantees that your industrial optical modules arrive securely and promptly, fully prepared for immediate network installation.

Anti-Static Protective Packaging

Anti-Static Protective Packaging

Specialized ESD safe optic packaging completely shields sensitive components from electrical damage.

Shock-Resistant Transport Protection

Shock-Resistant Transport Protection

Impact resistant shipping materials securely prevent physical module damage during rough transit.

Fast Order Processing and Dispatch

Fast Order Processing and Dispatch

Rapid order dispatch systems ensure your vital networking equipment ships without delay.

Global Logistics and International Delivery

Global Logistics and International Delivery

Reliable worldwide SFP delivery connects your critical infrastructure projects across any continent.

LINK-PP LS-BL55491G-A6I 1G SFP Usage Demonstration

For successful transceiver deployment, gently insert the module into the host port until it clicks. Proper fiber network installation requires pairing this specific unit with a complementary 1490nm-TX module to establish a flawless, bi-directional gigabit link.

LS-BL55491G-A6I 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-BL55491G-A6I 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-BL55491G-A6I 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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C***e
Costa Rica
Verified Purchase
5 .0
2026-05-12
Fast shipping on this 1G industrial transceiver!
P***r
Chile
Verified Purchase
5 .0
2026-03-25
Used this industrial SFP simplex LC for a factory floor network. Handles heat perfectly.
M***e
Kuwait
Verified Purchase
5 .0
2026-02-14
1550nm-TX/1490nm-RX optical levels are very consistent.
J***z
Portugal
Verified Purchase
5 .0
2026-02-10
Upgraded our edge switches. This industrial temp DOM fiber module survives our unventilated outdoor boxes! ☀️
M***s
Sweden
Verified Purchase
4 .0
2026-01-15
Delivery of these industrial 1G SFP modules was slightly delayed, but performance is rock-solid!
K***s
Panama
Verified Purchase
5 .0
2025-12-17
DOM fiber module stats read perfectly in pfSense.
M***s
Norway
Verified Purchase
5 .0
2025-11-28
Works flawlessly with my home Gigabit NAS!
L***l
Russian Federation
Verified Purchase
5 .0
2025-11-22
No OEM compatibility issues with our Aruba gear.
P***s
Bolivia
Verified Purchase
5 .0
2025-11-17
Excellent 1G BiDi SFP 160km transceivers for long-haul ISP routes. Flawless DOM readings!
M***l
Argentina
Verified Purchase
5 .0
2025-10-29
Great OEM compatibility. We needed rugged industrial transceiver modules for outdoor utility cabinets. These LINK-PP SFPs endure harsh summers perfectly, and the 160km transmission distance actually lived up to the real-world lab specs.
A***z
Austria
Verified Purchase
5 .0
2025-10-26
Flawless OEM compatibility! Recognized instantly on our Cisco catalyst switches with zero port errors.
M***a
Bangladesh
Verified Purchase
5 .0
2025-10-13
Hassle Free with quality merchandise.
K***a
Belgium
Verified Purchase
5 .0
2025-10-05
Solid 1.25Gbps throughput for our campus fiber network setup. Will definitely order more soon.
J***g
United States
Verified Purchase
5 .0
2025-09-09
Perfect for upgrading our remote site uplinks. Bought a bulk batch of these 1550nm TX 1490nm RX transceivers. DDM diagnostics integrate seamlessly into our NMS, making remote fiber troubleshooting a breeze. Highly recommended!
M***r
Poland
Verified Purchase
5 .0
2025-07-12
Perfect 1G BiDi SFP for our campus setup.
M***n
Netherlands
Verified Purchase
5 .0
2025-06-30
Superb 160km transmission distance on SMF fiber.
C***n
Greece
Verified Purchase
5 .0
2025-06-12
We deployed these 1G BiDi SFP 160km modules for a rural base station backhaul. The industrial temp handles extreme weather easily, and DDM monitoring shows stable 1550nm-TX/1490nm-RX optical levels across our Juniper gear.
M***s
Spain
Verified Purchase
5 .0
2025-06-05
Incredible TCO for campus fiber networks. I tested this 1.25Gbps DOM fiber module in a multi-brand switch environment including Cisco and Aruba. The Simplex LC SMF connection stayed up without single packet loss.
M***n
Singapore
Verified Purchase
5 .0
2025-05-14
Best industrial SFP simplex LC for the money.
C***g
Czech Republic
Verified Purchase
5 .0
2025-04-08
Bought these LINK-PP SFP modules online. The Simplex LC SMF connection is incredibly stable.
R***n
South Africa
Verified Purchase
5 .0
2025-02-04
Good prices and value
S***t
Ukraine
Verified Purchase
5 .0
2025-01-27
LINK-PP is a company with excellent sales people. They are technically oriented and know their products well. I have used them several times. Right product, on time, every time!
B***G
United States
Verified Purchase
5 .0
2024-11-29
Not only did this company have Juniper transceivers with incredible prices for us to choose from, but the customer service and the Optical Transceiver Module quality were very outstanding. I couldn't be more satisfied with our overall experience.
M***n
Netherlands
Verified Purchase
5 .0
2024-10-01
Lots of products but hard to find the exact one I need.
M***o
Maldives
Verified Purchase
5 .0
2024-08-18
Thank you LINK-PP for continuing to provide exceptional parts and service
C***y
United States
Verified Purchase
5 .0
2024-08-12
Easy to use website simple layout. High recommended.
M***n
Romania
Verified Purchase
5 .0
2024-05-15
The quality is excellent. Recommend. Thank you
K***m
Thailand
Verified Purchase
5 .0
2024-04-10
easy ordering and prompt delivery.
R***s
United States
Verified Purchase
5 .0
2024-02-04
Wonderful to do business with .
E***r
Denmark
Verified Purchase
5 .0
2024-01-12
The cheapest 10/25/40G Transceiver Modules I have bought, but the best.
X***a
Argentina
Verified Purchase
5 .0
2023-07-25
Provides a good customer experience with attention to details and customer happiness.
S***n
Hong Kong
Verified Purchase
5 .0
2023-07-12
Awesome extenders good quality would highly recommend
T***g
United States
Verified Purchase
5 .0
2023-07-02
The items did arrive and in great shape. I have installed them and just put them to use this last Monday. All went very well. I use to do business with l-p.com from my previous employer as well and have always found your products to be great both cost and quality wise.
B***d
United States
Verified Purchase
5 .0
2023-06-27
The entire process was pleasant. I would shop again.
S***m
United States
Verified Purchase
5 .0
2023-06-18
Arrived on time and as promised.
M***m
Hungary
Verified Purchase
5 .0
2023-06-15
I was really satisfied. They were really responsive to my questions, and sent my order quickly. I will use them again.
M***a
United States
Verified Purchase
5 .0
2023-05-26
They are great and more than helpful on my order.
J***k
Bangladesh
Verified Purchase
5 .0
2023-05-24
very happy with the products I recieved.
R***n
Ireland
Verified Purchase
5 .0
2023-05-05
The delivery is Fast. After receiving the package from Link-pp, I unpackaged it to check post shipping condition. The product was well packaged with no damage.
A***v
United States
Verified Purchase
5 .0
2022-12-16
10/25/40G Transceiver Modules Female works well on my switches and I would get some more soon.
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