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LS-BL55491G-A5C 1g sfp bidi 1550nm-tx 1490nm-rx 150km dom simplex lc smf optical transceiver module
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LINK-PP LS-BL55491G-A5C 1G SFP BiDi 1550nm-TX/1490nm-RX 150km DOM Simplex LC SMF Optical Transceiver Module

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Product summary

Product
LINK-PP LS-BL55491G-A5C 1G SFP BiDi 1550nm-TX/1490nm-RX 150km DOM Simplex LC SMF Optical Transceiver Module
SKU
207070
P/N
LS-BL55491G-A5C
Price
$ 50
Stock
610 in Stock
Sold
2.4K
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
24 Reviews
5 Questions
2.4K Sold
$ 50 0% OFF )
Free shipping. For wholesale pricing, please contact us directly.
Qty (pcs) :
Unit Price :
1
$ 50
100
$ 47.5
1000
$ 46
3000
$ 44.5
6000
$ 43
Manufacture: LINK-PP P/N: LS-BL55491G-A5C SKU: 207070
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-A5C 1G BiDi SFP Specifications

The LINK-PP LS-BL55491G-A5C is a high-performance 1.25Gbps BiDi SFP transceiver engineered for long-haul optical networking. This single-mode optical module utilizes advanced 1550nm DFB laser and APD photodiode technologies to achieve an extraordinary 150km reach. Operating on a standard 3.3V power supply, it guarantees stable gigabit ethernet transmission across expansive infrastructures.

LINK-PP Part Number LS-BL55491G-A5C 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 0 to 70°C Protocols

SFP MSA、SFF-8472

Key Features of LINK-PP LS-BL55491G-A5C 1G BiDi SFP

Discover the exceptional capabilities of this hot-pluggable WDM SFP transceiver. Engineered for minimal power consumption and superior optical performance, the 1G single fiber module delivers consistent 1.063Gbps Fiber Channel and 1.25G Gigabit Ethernet connectivity. It operates reliably within commercial temperatures spanning zero to seventy degrees Celsius.

LINK-PP LS-BL55491G-A5C 1G BiDi SFP Optical Module

This robust 1G bidirectional SFP optical module dramatically reduces fiber cabling costs by transmitting and receiving data over a single strand of single-mode fiber. It perfectly complies with standard SFP MSA regulations for seamless network integration.

LS-BL55491G-A5C: 1G Connectivity for Metropolitan Area Network

Tailored specifically for Metropolitan Area Networks and long-haul telecommunication systems, this 1G SMF transceiver ensures ultra-reliable gigabit optical links. It seamlessly connects disparate corporate campuses, remote data centers, and enterprise network switches across vast geographical distances.

LS-BL55491G-A5C Module with 1550nm-TX and 1490nm-RX Wavelength

Operating with an asymmetrical wavelength design, this optical transceiver features a premium 1550nm DFB laser transmitter and a highly sensitive 1490nm APD receiver. This dual-wavelength technology successfully prevents signal interference during simultaneous upstream and downstream data transmission.

LS-BL55491G-A5C Module Supporting 150km Transmission

Overcoming extreme distance limitations, this extended-reach SFP module achieves an incredible 150km transmission distance on standard single-mode fiber. The integrated APD photodetector provides exceptional receiver sensitivity, maintaining zero signal loss across incredibly long rural network spans.

LS-BL55491G-A5C Module with Simplex LC Interface

Designed featuring a simplex LC receptacle, this bidirectional fiber optic transceiver enables quick, secure, and physically compact hardware connections. The single LC connector framework maximizes port density on enterprise routers while minimizing overall fiber optic infrastructure expenses.

LS-BL55491G-A5C Module with DOM for Real-Time Monitoring

Equipped with advanced Digital Optical Monitoring, this intelligent SFP module complies with SFF-8472 standards. Network administrators can easily track real-time operational metrics including laser temperature, voltage supply, transmitter bias current, and continuous optical power input levels.


LINK-PP LS-BL55491G-A5C 1G SFP Certification

Every single LINK-PP 1.25Gbps optical transceiver perfectly adheres to stringent international manufacturing standards, ensuring absolute compliance with Class I laser safety regulations and global environmental sustainability protocols.

Optical Transceivers Testing

We implement a comprehensive quality control framework for every single-mode SFP module. Each manufactured transceiver undergoes continuous automated inspection to guarantee flawless long-distance fiber transmission.

LS-BL55491G-A5C Quality Certifications

This robust commercial-grade BiDi transceiver proudly carries comprehensive CE, FCC, UKCA, UL, and REACH certifications. Furthermore, the RoHS compliant module guarantees environmentally responsible telecommunications deployment universally.

LS-BL55491G-A5C Certified for Reliable Host-Device Compatibility

Rigorously evaluated across diverse networking equipment, this MSA compatible transceiver guarantees flawless interoperability. It operates seamlessly inside standard gigabit switches, industrial routers, and enterprise fiber optic media converters.


Rigorous Testing Ensures Reliable SFP Performance

Our dedicated quality assurance laboratories subject every optical module to comprehensive technical evaluations, maximizing gigabit network stability and minimizing unexpected fiber link failures.

Optical

Optical Spectrum Test

We precisely verify the 1550nm DFB laser wavelength and side-mode suppression ratio parameters.

Optical

Eye Pattern Test

Advanced oscilloscopes confirm excellent transmitter signal integrity and data output swing differential quality.

Optical

Bit Error Rate Test

Continuous data stream analysis ensures zero data loss during massive gigabit ethernet transmissions.

Optical

Temperature Test

Strict thermal chamber cycles guarantee stable component functionality across zero to seventy degrees.


Product Shipping for LINK-PP LS-BL55491G-A5C 1G SFP

We prioritize secure global distribution channels to ensure your advanced gigabit optical transceivers arrive rapidly, safely, and ready for immediate network installation.

Anti-Static Protective Packaging

Anti-Static Protective Packaging

Premium electrostatic discharge bags perfectly shield the sensitive internal APD microcomponents.

Shock-Resistant Transport Protection

Shock-Resistant Transport Protection

Custom molded physical buffers actively prevent dangerous mechanical damage during transit.

Fast Order Processing and Dispatch

Fast Order Processing and Dispatch

Automated warehouse management accelerates the immediate dispatch of your optical modules.

Global Logistics and International Delivery

Global Logistics and International Delivery

Trusted express courier partnerships guarantee fast worldwide delivery for critical infrastructure.

LINK-PP LS-BL55491G-A5C 1G SFP Usage Demonstration

Integrating this gigabit single-mode transceiver is exceptionally straightforward. Technicians simply slide the hot-pluggable BiDi module into any available SFP port, connect the simplex LC patch cord, and instantly establish a stable 150km long-distance telecommunications link without configuration.

LS-BL55491G-A5C 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-A5C 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-A5C 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***a
Peru
Verified Purchase
5 .0
2026-07-30
APD receiver sensitivity is highly impressive.
A***t
Panama
Verified Purchase
5 .0
2026-06-25
Ideal for long-haul metropolitan area network links. Simplex LC saves so much fiber!
D***n
Netherlands
Verified Purchase
5 .0
2026-06-25
Upgraded our outdoor cabinet switches with these 1G BiDi SFPs. Completely stable connection!
D***n
Austria
Verified Purchase
5 .0
2026-06-19
The DDM feature gives me real-time voltage and temp stats on my router.
J***n
Denmark
Verified Purchase
5 .0
2026-05-31
Unbeatable value for a 150km extended-reach optical transceiver. Multi-brand compatibility is legit.
K***n
Argentina
Verified Purchase
5 .0
2026-05-22
DOM monitoring works great on Cisco switches.
W***n
United Kingdom
Verified Purchase
5 .0
2026-03-29
Using this 1G single fiber module for a multi-building campus network. The APD photodiode sensitivity is outstanding. It effortlessly achieved full 1.25Gbps throughput during our rigorous long-haul PRBS stress testing.
A***g
Viet Nam
Verified Purchase
5 .0
2026-03-10
Rock solid 1550nm-TX 150km transmission!
L***s
Austria
Verified Purchase
4 .0
2026-03-04
Box was slightly dented upon arrival, but the 1G BiDi module works flawlessly.
L***n
Germany
Verified Purchase
5 .0
2026-02-18
Solved our base station backhaul connectivity issue.
J***s
Argentina
Verified Purchase
5 .0
2026-02-02
Plug and play 1.25Gbps performance. (^_^)
M***n
Czech Republic
Verified Purchase
5 .0
2026-01-20
Tested these LS-BL55491G-A5C modules across Juniper and Arista gear in our datacenter. SFF-8472 DOM reporting is perfectly accurate. RX optical power stayed robust at -26dBm over a 120km physical SMF loop.
M***s
Macao
Verified Purchase
5 .0
2026-01-20
Genuine SFP MSA compliant, zero compatibility issues.
B***z
Republic of Korea
Verified Purchase
5 .0
2025-12-13
Smooth gigabit ethernet transmission on standard single-mode fiber. Highly recommend for enterprise setups.
R***n
Finland
Verified Purchase
5 .0
2025-11-29
Fast data center interconnect deployment.
B***r
Brazil
Verified Purchase
5 .0
2025-10-19
Best simplex LC transceiver for the price!
D***n
Poland
Verified Purchase
5 .0
2025-10-18
Deployed fifty units for rural base station backhaul. The 1550nm/1490nm WDM split over a single strand is cost-effective. Even nearing 70°C operating temperature in summer cabinets, zero packet loss observed!
D***s
Ukraine
Verified Purchase
5 .0
2025-09-04
OEM compatible modules that actually work out of the box. Saved us thousands.
N***n
Costa Rica
Verified Purchase
5 .0
2025-08-25
Runs cool within the 0 to 70°C range. ❄️
T***n
Dominican Republic
Verified Purchase
5 .0
2025-07-31
Exactly what I needed for campus fiber.
W***e
Dominican Republic
Verified Purchase
5 .0
2025-05-16
Replaced expensive original brand optics with these for our Metropolitan Area Network. The 150km DFB laser performance matches OEM specs perfectly. Mass deployment was seamless with zero Link-Flap issues.
T***n
Turkey
Verified Purchase
5 .0
2025-04-10
Excellent 1490nm-RX sensitivity. Bridged two remote sites easily without signal drops.
B***z
Brazil
Verified Purchase
5 .0
2025-04-05
We bought a batch for our regional ISP backbone. Great 1550nm DFB laser reliability.
A***n
Israel
Verified Purchase
5 .0
2025-04-02
Perfect for my home gigabit NAS link.
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