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LS-BL49551G-A2I 1g bidi sfp 1490nm-tx 1550nm-rx 120km dom simplex lc smf optical transceiver module (industrial)
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LINK-PP LS-BL49551G-A2I 1G BiDi SFP 1490nm-TX/1550nm-RX 120km DOM Simplex LC SMF Optical Transceiver Module (Industrial)

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Product summary

Product
LINK-PP LS-BL49551G-A2I 1G BiDi SFP 1490nm-TX/1550nm-RX 120km DOM Simplex LC SMF Optical Transceiver Module (Industrial)
SKU
183235
P/N
LS-BL49551G-A2I
Price
$ 31.5
Stock
580 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
47 Reviews
3 Questions
1.4K Sold
$ 31.5 0% OFF )
Free shipping. For wholesale pricing, please contact us directly.
Qty (pcs) :
Unit Price :
1
$ 31.5
100
$ 29.925
1000
$ 28.98
3000
$ 28.035
6000
$ 27.09
Manufacture: LINK-PP P/N: LS-BL49551G-A2I SKU: 183235
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-BL49551G-A2I 1G BiDi SFP Specifications

The high-capability LINK-PP LS-BL49551G-A2I 1G BiDi transceiver supports stable 1.25 Gbps data transmission over single-mode fiber up to 120 km, using a transmit wavelength of 1490nm and a receive wavelength of 1550nm for dependable long-distance connectivity.

LINK-PP Part Number LS-BL49551G-A2I Vendor Name LINK-PP
Form Factor SFP Max Data Rate 1.25Gbps
Wavelength 1490nm-TX/1550nm-RX Max Cable Distance 120km
Connector Simplex LC Media SMF
Transmitter Type DFB BiDi Receiver Type

APD

TX Power 0 to +5dBm RX Power -28 to -1dBm
Receiver Sensitivity <-32dBm Receiver Overload -6dBm
Operating Temperature Range -40 to 85°C Protocols

Fast Ethernet, Gigabit Fibre Channel, MSA Compliant

Key Features of LINK-PP LS-BL49551G-A2I 1G BiDi SFP

The LINK-PP LS-BL49551G-A2I 1G BiDi SFP module provides reliable Gigabit throughput and easy plug-and-play deployment. It features a high-quality DFB laser, a high-sensitivity APD/TIA receiver, a simplex LC interface, and integrated Digital Optical Monitoring (DOM). With BiDi technology, it enables full-duplex communication over a single fiber strand, improving fiber utilization while reducing cabling costs.

LINK-PP LS-BL49551G-A2I 1G BiDi SFP Optical Module

Thanks to its precisely paired transmit and receive wavelengths, this LINK-PP LS-BL49551G-A2I 1G BiDi module supports simultaneous bidirectional communication over one fiber. Its compact, efficient design maximizes fiber resources and offers a cost-effective solution for increasing network capacity without deploying extra fiber.

LS-BL49551G-A2I: Reliable 1.25 Gbps Connectivity for Efficient Gigabit Connectivity

With consistent performance of 1.25 Gbps, this LINK-PP LS-BL49551G-A2I BiDi SFP module is ideal for use in remote monitoring systems, industrial automation, metro access networks, enterprise WAN extensions, and ISP backbone infrastructure.

LS-BL49551G-A2I Module with 1490nm-TX/1550nm-RX Wavelength

The refined wavelength pairing of 1490nm (TX) and 1550nm (RX) ensures stable, bidirectional communication via a single fiber, decreasing interference and enhancing optical signal integrity.

LS-BL49551G-A2I Module Supporting 120km Transmission

This LINK-PP LS-BL49551G-A2I BiDi module is designed for ultra-long-distance applications and supports transmission distances of up to 120 km over standard single-mode fiber. It maintains signal integrity and low error rates across extended links.

LS-BL49551G-A2I Module with Simplex LC Interface

Featuring a simplex LC connector, the LINK-PP LS-BL49551G-A2I BiDi SFP module supports dual-direction transmission on a single fiber, optimizing infrastructure efficiency and reducing deployment overhead.

LS-BL49551G-A2I Module with DOM for Real-Time Monitoring

With built-in DOM support, the  LINK-PP LS-BL49551G-A2I BiDi module delivers instant insight into critical parameters, allowing for preventative maintenance and reducing downtime.


LINK-PP LS-BL49551G-A2I 1G BiDi SFP Certification

With ISO 9001 quality assurance and global certifications including CE, RoHS, and FCC, every LINK-PP module ensures consistent, reliable operation across networks.

Optical Transceivers Testing

Thorough validation of key parameters ensures flawless signal quality and thermal resilience.

LS-BL49551G-A2I Quality Certifications

LINK-PP maintains strict adherence to ISO 9001 standards, along with CE, RoHS, and FCC compliance, ensuring excellent performance. 

LS-BL49551G-A2I Certified for Reliable Host-Device Compatibility

Precision-tested with LINK-PP platforms to guarantee flawless operation from deployment through the entire service period.


Rigorous Testing Ensures Reliable SFP Performance

LINK-PP applies a comprehensive validation process to ensure optimal performance. Visit the LINK-PP Test Support Center for more information.

Optical

Optical Spectrum Test

Confirms exact wavelength alignment for superior optical performance.

Optical

Eye Pattern Test

Ensures flawless waveform quality and transmission consistency.

Optical

Bit Error Rate Test

Safeguards data integrity with minimal transmission errors.

Optical

Temperature Test

Validates consistent performance across extreme temperature ranges.


Product Shipping for LINK-PP LS-BL49551G-A2I 1G BiDi SFP

LINK-PP safeguards every module with secure packaging and trusted worldwide delivery solutions.

Anti-Static Protective Packaging

Anti-Static Protective Packaging

ESD-safe packaging preserves electronic integrity during handling and transport.

Shock-Resistant Transport Protection

Shock-Resistant Transport Protection

Durable, shock-absorbing packaging reduces the risk of impact-related damage.

Fast Order Processing and Dispatch

Fast Order Processing and Dispatch

Optimized processing systems accelerate order handling and dispatch.

Global Logistics and International Delivery

Global Logistics and International Delivery

Reliable global shipping networks support efficient international delivery.

LINK-PP LS-BL49551G-A2I 1G BiDi SFP Usage Demonstration

The LINK-PP LS-BL49551G-A2I 1G BiDi SFP module is typically deployed in complementary pairs on a single fiber link, connecting switches, routers, or media converters to enable long-distance, high-speed communication while conserving fiber resources. It is ideal for telecom backbones, industrial networks, long-distance surveillance, metro access networks, and enterprise WAN extensions.

LS-BL49551G-A2I 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-BL49551G-A2I 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-BL49551G-A2I 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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S***s
Philippines
Verified Purchase
5 .0
2026-06-18
Plug and play Cisco link.
F***z
Bulgaria
Verified Purchase
5 .0
2026-03-01
Works perfectly! :)
A***z
Ireland
Verified Purchase
5 .0
2026-02-20
Nice industrial simplex sfp. =D
M***z
Hungary
Verified Purchase
5 .0
2025-10-25
Tested across HPE and Ubiquiti switches. Negotiated 1000BASE-ZX without any custom commands. =)
B***z
Bulgaria
Verified Purchase
5 .0
2025-09-24
DOM stats look great.
M***s
Finland
Verified Purchase
5 .0
2025-07-30
Bench tested these 120km bidi modules before deploying to our telecom cell towers. SFF-8472 DOM parameters are highly accurate. Wavelength separation of 1490nm and 1550nm is clean with no crosstalk. Flawless OEM compatibility across our entire Arista and Juniper network backbone.
A***e
India
Verified Purchase
5 .0
2025-07-27
Plugged into our outdoor Mikrotik switch. Handles the summer heat well thanks to the industrial -40 to 85C rating. ;)
A***z
Brunei Darussalam
Verified Purchase
5 .0
2025-07-18
Great for outdoor cabinets. :-D
T***k
Argentina
Verified Purchase
5 .0
2025-05-02
The 1490nm-TX 1550nm-RX combo is rock solid. Simplex LC cuts our fiber costs in half for remote campus links.
N***s
New Zealand
Verified Purchase
5 .0
2024-12-12
Fantastic price to performance. OEM 120km SFP modules cost a fortune, but this LINK-PP unit performs just as well for our data center interconnection.
B***n
Germany
Verified Purchase
5 .0
2024-12-05
Used this for a 95km cell tower backhaul upgrade. Link came up instantly on our Juniper gear. Highly recommend this industrial bidi optic.
V***v
Maldives
Verified Purchase
5 .0
2024-09-08
Delivered on time and overall excellent deal with reasonable shipping and great product pricing.
A***s
Argentina
Verified Purchase
5 .0
2024-09-01
MSA compatible out the box.
B***g
Austria
Verified Purchase
5 .0
2024-08-23
Goods as advertised. Shipping great. Recommended!
M***i
Brunei Darussalam
Verified Purchase
5 .0
2024-07-29
My orders came Fast and with a great warranty so I have peace of mind as well.
M***o
Norway
Verified Purchase
5 .0
2024-07-25
What a wonderful shopping experience.
R***t
South Africa
Verified Purchase
5 .0
2024-07-24
The same functionality at a much lower cost, no reason to reject.
D***e
United Arab Emirates
Verified Purchase
5 .0
2024-07-06
We did a batch deployment of 30 units for a rural ISP fiber rollout. Zero DOA. Great 1G bidi sfp module.
R***r
Romania
Verified Purchase
4 .0
2024-07-02
Shipping took an extra week to arrive in Texas, but the 120km bidi sfp itself works flawlessly in our edge router.
O***n
United Kingdom
Verified Purchase
5 .0
2024-06-29
Due to location in China, shipping is somewhat longer than may be expected.
Z***s
Poland
Verified Purchase
5 .0
2024-06-25
Solid 120km SFP module.
O***s
Brazil
Verified Purchase
5 .0
2024-06-24
It saved us from pulling new fiber for a long distance security camera network. Just needed one strand!
B***n
Israel
Verified Purchase
5 .0
2024-06-08
Deployed this LS-BL49551G-A2I for a 110km inter-city campus ring. The optical budget is massive. Paired with 1550nm-TX units, our Cisco core switches showed immediate link state. DOM telemetry confirmed excellent RX sensitivity despite the extreme distance. A professional grade long haul solution.
Y***u
Ireland
Verified Purchase
5 .0
2024-05-31
Great site with awesome prices and Fast shipping.Buy with confidence from Fiberstore.
A***r
Sweden
Verified Purchase
5 .0
2024-05-25
Superb long haul optic.
P***g
Hong Kong
Verified Purchase
5 .0
2024-05-02
Shipping was immediate, and the order arrived quickly and correctly. Thanks a lot!
J***l
Netherlands
Verified Purchase
5 .0
2024-04-24
Hard to find reliable 120km industrial transceivers at this price. Will definitely buy more for our telecom racks. :-)
M***z
Finland
Verified Purchase
5 .0
2024-04-08
I manage unconditioned utility cabinets for a regional ISP. Standard optics fail in winter. This industrial 1G bidi SFP handles freezing temps perfectly. The simplex LC connection easily pushed 1.25Gbps over a 98km single mode fiber run with zero CRC errors over 30 days.
J***n
Thailand
Verified Purchase
5 .0
2024-04-08
We buy 10/25/40G Transceiver Modules's from Link-pp all the time, and they have never let us down.
D***r
Australia
Verified Purchase
5 .0
2024-04-02
These Optical Transceiver Modules worked as advertised.
K***s
Ireland
Verified Purchase
5 .0
2024-03-20
DOM feature is a lifesaver for troubleshooting remote sites. RX power is steady over a 105km SMF run.
I***f
France
Verified Purchase
5 .0
2024-03-13
can't wait to get it
L***s
Bulgaria
Verified Purchase
5 .0
2024-03-03
Replaced a failing commercial grade transceiver with this industrial one. The DFB laser output is very stable. :D
N***i
South Africa
Verified Purchase
5 .0
2024-02-12
Quick! With great quality service and supplies!
O***y
India
Verified Purchase
5 .0
2024-01-18
I needed the sfp cage quickly. Did not want to spend a whole lot of time trying to muddle through a complicated website looking for what I wanted. LINK-PP did just that. Up to this point I did not have a favorite site for my needs. Now I do.
K***n
United States
Verified Purchase
5 .0
2024-01-10
I purchased these 10/25/40G Transceiver Modules because they were less expensive than I found in other places, and order came Fast and quick. Thank You
R***y
Indonesia
Verified Purchase
5 .0
2023-11-25
I wish every business operated like they do. Thanks.
M***o
United States
Verified Purchase
5 .0
2023-11-10
can not wait to receive my items. So far the process has been awesome.
S***a
Norway
Verified Purchase
5 .0
2023-10-04
Good value. Just what I needed.
C***a
Sweden
Verified Purchase
5 .0
2023-08-03
Just what I ordered, good job!
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