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LS-BL55491G-A5I 1g sfp bidi 1550nm-tx 1490nm-rx 150km dom simplex lc smf optical transceiver module (industrial)
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LINK-PP LS-BL55491G-A5I 1G SFP BiDi 1550nm-TX/1490nm-RX 150km DOM Simplex LC SMF Optical Transceiver Module (Industrial)

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Product summary

Product
LINK-PP LS-BL55491G-A5I 1G SFP BiDi 1550nm-TX/1490nm-RX 150km DOM Simplex LC SMF Optical Transceiver Module (Industrial)
SKU
207166
P/N
LS-BL55491G-A5I
Price
$ 51
Stock
590 in Stock
Sold
1.4K
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
1.4K Sold
$ 51 0% OFF )
Free shipping. For wholesale pricing, please contact us directly.
Qty (pcs) :
Unit Price :
1
$ 51
100
$ 48.45
1000
$ 46.92
3000
$ 45.39
6000
$ 43.86
Manufacture: LINK-PP P/N: LS-BL55491G-A5I SKU: 207166
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:
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Total Price:
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LINK-PP LS-BL55491G-A5I 1G BiDi SFP Specifications

The LINK-PP LS-BL55491G-A5I is an industrial-grade 1G BiDi SFP optical transceiver designed for extreme environments. Operating from -40°C to +85°C, this single-mode module delivers up to 1.25Gbps data rates. Featuring a highly sensitive APD detector and premium DFB laser, it guarantees exceptional optical network performance across 150km transmission links.

LINK-PP Part Number LS-BL55491G-A5I Vendor Name LINK-PP
Form Factor SFP Max Data Rate 1.25Gbps
Wavelength 1550nm-TX/1490nm-RX Max Cable Distance 150km
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-A5I 1G BiDi SFP

Discover the core advantages of the LS-BL55491G-A5I industrial transceiver. This hot-pluggable 1G BiDi SFP supports Gigabit Ethernet and 1.063Gbps Fiber Channel. Built with a robust SFP MSA compliant footprint, it ensures low power consumption, Class I laser safety, and highly reliable single-fiber communication.

LINK-PP LS-BL55491G-A5I 1G BiDi SFP Optical Module

This high-performance 1G BiDi SFP optical module is engineered for cost-effective networking. By combining bidirectional technology into a compact hot-swappable form factor, it maximizes fiber utilization and drastically reduces your optical infrastructure cabling costs.

LS-BL55491G-A5I: 1G Connectivity for Base Station

Ideal for remote telecommunications, this industrial SFP transceiver provides stable 1G connectivity for base station interconnections. Its robust -40°C to +85°C operating range ensures uninterrupted gigabit data transmission in harsh outdoor telecom equipment environments.

LS-BL55491G-A5I Module with 1550nm-TX and 1490nm-RX Wavelength

Utilizing WDM technology, the transceiver features a precise 1550nm-TX DFB laser transmitter and a highly sensitive 1490nm-RX APD photodiode. This specific 1550nm/1490nm wavelength configuration enables seamless single-mode bidirectional fiber communication with minimal signal dispersion.

LS-BL55491G-A5I Module Supporting 150km Transmission

Engineered for ultra-long-haul networks, this 1G BiDi SFP module supports an impressive 150km transmission distance over single-mode fiber (SMF). The integrated APD receiver provides an exceptional -34dBm sensitivity, ensuring reliable data delivery across vast distances.

LS-BL55491G-A5I Module with Simplex LC Interface

Designed for easy integration, the module is equipped with a standard simplex LC receptacle. This single LC fiber interface not only complies with SFF-8472 industry standards but also streamlines patch cord connections in dense networking panels.

LS-BL55491G-A5I Module with DOM for Real-Time Monitoring

Maximize network uptime with built-in Digital Optical Monitoring (DOM). Through a standard 2-wire I2C interface, administrators can instantly track critical internal diagnostics, including real-time temperature, voltage, laser bias current, and continuous TX/RX optical power levels.


LINK-PP LS-BL55491G-A5I 1G SFP Certification

Every LINK-PP LS-BL55491G-A5I 1G SFP undergoes rigorous compliance evaluations, ensuring our industrial networking products meet global regulatory standards for electrical safety and electromagnetic interference.

Optical Transceivers Testing

Our comprehensive quality testing program guarantees exceptional long-haul reliability. Each ultra-long reach transceiver passes stringent optical and electrical inspections before leaving the state-of-the-art manufacturing facility.

LS-BL55491G-A5I Quality Certifications

Demonstrating superior manufacturing integrity, this industrial grade BiDi optical module proudly carries international CE, FCC, UKCA, UL, and REACH certifications, alongside full RoHS environmental compliance.

LS-BL55491G-A5I Certified for Reliable Host-Device Compatibility

Strictly following SFP MSA protocols, the module is thoroughly certified for reliable host-device compatibility. It ensures seamless gigabit ethernet integration across major networking switch brands.


Rigorous Testing Ensures Reliable SFP Performance

To guarantee flawless gigabit network operation over 150km, we perform multiple strict validation procedures on every individual single-mode optical transceiver.

Optical

Optical Spectrum Test

Evaluates the 1550nm DFB laser to ensure optimal center wavelength and minimal signal dispersion.

Optical

Eye Pattern Test

Analyzes transmitter modulation quality to confirm compliance with IEEE 802.3z gigabit signaling standards.

Optical

Bit Error Rate Test

Verifies the -34dBm APD receiver sensitivity to ensure data integrity without transmission errors.

Optical

Temperature Test

Validates stable optical power output and performance across the extreme -40°C to +85°C spectrum.


Product Shipping for LINK-PP LS-BL55491G-A5I 1G SFP

We implement professional supply chain protocols to ensure your industrial long-reach fiber optic modules arrive safely, precisely on schedule, and ready for deployment.

Anti-Static Protective Packaging

Anti-Static Protective Packaging

Each module is sealed in premium ESD-safe bags preventing electrical damage.

Shock-Resistant Transport Protection

Shock-Resistant Transport Protection

Custom-molded protective trays securely cushion the transceivers against severe physical impacts.

Fast Order Processing and Dispatch

Fast Order Processing and Dispatch

Optimized warehouse management guarantees rapid order fulfillment and immediate dispatch tracking.

Global Logistics and International Delivery

Global Logistics and International Delivery

Partnering with top couriers, we provide reliable worldwide shipping and customs support.

LINK-PP LS-BL55491G-A5I 1G SFP Usage Demonstration

Experience seamless plug-and-play installation in your network rack. Simply insert the hot-swappable transceiver into a compatible MSA switch port, connect the simplex LC single-mode fiber, and establish an instant 150km gigabit optical link without complex configuration.

LS-BL55491G-A5I 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-A5I 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-A5I 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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M***n
Dominican Republic
Verified Purchase
5 .0
2026-07-13
Top tier build quality and pricing.
C***g
Singapore
Verified Purchase
5 .0
2026-06-04
Accurate 1550TX wavelength, zero CRC errors.
K***n
France
Verified Purchase
4 .0
2026-06-02
Outer box was slightly crushed during transit, but the 150km transceiver works flawlessly.
R***s
Venezuela
Verified Purchase
5 .0
2026-05-29
Bench-tested alongside OEM optics on Juniper routers. Optical eye diagram is exceptionally clean, 1550nm DFB laser output stayed at steady +3.2dBm, delivering identical carrier-grade performance at a fraction of cost.
M***s
Norway
Verified Purchase
5 .0
2026-03-31
Works reliably in harsh outdoor cabinets.
M***r
Portugal
Verified Purchase
5 .0
2026-03-27
Excellent APD receiver sensitivity on SMF.
C***z
Republic of Korea
Verified Purchase
4 .0
2026-03-27
Delivery took two days longer than expected, yet the industrial BiDi optic performed perfectly.
A***s
Norway
Verified Purchase
5 .0
2026-02-13
DOM optical diagnostics report precise TX power levels in our outdoor telecom cabinet setup.
S***s
Argentina
Verified Purchase
5 .0
2026-02-05
Seamlessly recognized by our MikroTik switch without any vendor lock-in issues whatsoever.
W***z
Belgium
Verified Purchase
5 .0
2026-01-29
Deployed this 150km BiDi SFP on an unamplified 130km single-mode link between municipal facilities. APD sensitivity easily registered at -31.5dBm DOM level with zero packet drops under full load.
B***r
Malaysia
Verified Purchase
5 .0
2026-01-15
Crucial single-mode simplex LC transceiver for cutting physical fiber core usage in half.
S***n
Taiwan, Province of China
Verified Purchase
5 .0
2026-01-10
Great industrial wide-temp SFP optics. ⚡
D***s
Poland
Verified Purchase
5 .0
2025-12-20
Saved substantial budget upgrading our rural utility backbone. Single-fiber bidirectional transmission doubled our SMF capacity instantly, while accurate DDM telemetry simplified real-time remote monitoring from our central NOC.
J***g
Costa Rica
Verified Purchase
5 .0
2025-12-19
The DFB laser and APD receiver provide plenty of optical link margin.
W***n
Ghana
Verified Purchase
5 .0
2025-10-28
Installed across rugged outdoor base station cabinets in Arizona. Despite summer ambient temps topping 45°C, the industrial -40°C to 85°C casing kept internal laser bias completely within nominal SFF-8472 limits.
D***r
France
Verified Purchase
5 .0
2025-09-17
No packet loss over long haul. ^_^
A***e
Panama
Verified Purchase
5 .0
2025-07-19
Industrial temperature rating handles freezing winter nights in rural tower enclosures with ease. ❄️
D***s
Macao
Verified Purchase
5 .0
2025-06-30
Solid 150km link on single fiber!
M***s
Sweden
Verified Purchase
5 .0
2025-06-26
Stable optical power budget and low current draw during 24/7 continuous operation. :)
D***s
Netherlands
Verified Purchase
5 .0
2025-06-18
Paired seamlessly with the 1490nm-TX counterpart over our 135km dark fiber route.
S***z
Belgium
Verified Purchase
5 .0
2025-05-21
Clean 1.25G link across remote substations.
C***l
Venezuela
Verified Purchase
5 .0
2025-05-17
Saved huge fiber cost with BiDi.
S***n
United States
Verified Purchase
5 .0
2025-05-16
Consistent 1.25Gbps throughput on our remote campus backhaul link with zero jitter.
S***r
Sweden
Verified Purchase
5 .0
2025-05-05
Flawless DOM readings in our Cisco switch.
P***s
Portugal
Verified Purchase
5 .0
2025-04-06
Plug and play simplex LC module. :)
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