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fs sfp-1g43-bx40 compatible link-pp 1g sfp bidi 1490nm-tx 1310nm-rx 40km simplex lc ddm smf optical transceiver module
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FS SFP-1G43-BX40 Compatible LINK-PP 1G SFP BiDi 1490nm-TX/1310nm-RX 40km Simplex LC DDM SMF Optical Transceiver Module

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Product summary

Product
FS SFP-1G43-BX40 Compatible LINK-PP 1G SFP BiDi 1490nm-TX/1310nm-RX 40km Simplex LC DDM SMF Optical Transceiver Module
SKU
224770
P/N
LS-BL49311G-40C
Price
$ 16.8
Stock
1155 in Stock
Sold
1.1K
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
27 Reviews
4 Questions
1.1K Sold
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.
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FS SFP-1G43-BX40 Compatible LINK-PP 1G BiDi SFP Specifications

The FS SFP-1G43-BX40 Compatible LINK-PP module is a high-performance 1G BiDi SFP optical module designed for Gigabit Ethernet and Fibre Channel applications. It features a 1.25Gbps data rate, 1490nm-TX/1310nm-RX wavelengths, and operates over single-mode fiber up to 40km. Equipped with a simplex LC interface and DDM capabilities, this commercial-grade fiber optic transceiver ensures robust and reliable network connectivity.

FS Part NumberSFP-1G43-BX40Vendor NameLINK-PP
Form Factor SFP Max Data Rate 1.25Gbps
Wavelength 1490nm-TX/1310nm-RX Max Cable Distance 40km
Connector Simplex LC Media SMF
Transmitter Type
DFB Receiver Type
PIN
TX Power -5 to 0dBm RX Power -23 to -1dBm
Receiver Sensitivity <-23dBm DOM Support Yes
Operating Temperature Range
0 to 70°C Protocols
Fast Ethernet, Gigabit Fibre Channel, MSA Compliant

Key Features of FS SFP-1G43-BX40 Compatible LINK-PP 1.25G SFP

Explore the outstanding capabilities of the FS SFP-1G43-BX40 Compatible LINK-PP transceiver. This 1G BiDi SFP delivers efficient bidirectional communication via WDM technology, significantly reducing cabling costs. It perfectly combines low power consumption, hot-swappable design, and MSA compliance to upgrade your enterprise network infrastructure effortlessly.

FS SFP-1G43-BX40 Compatible LINK-PP 1G BiDi SFP Optical Module

The FS SFP-1G43-BX40 Compatible LINK-PP 1G BiDi SFP optical module is engineered for optimal single-fiber bidirectional transmission. This compact transceiver guarantees seamless integration into standard network equipment, maximizing both bandwidth efficiency and operational reliability for modern data centers.

SFP-1G43-BX40: 1G Connectivity for Backbone Networks

Designed to empower backbone networks, the SFP-1G43-BX40 ensures stable 1G connectivity across long distances. This Gigabit Ethernet SFP effectively handles high-capacity data streams, preventing bottlenecks and maintaining smooth, uninterrupted data flow for critical enterprise communication links.

SFP-1G43-BX40 Module with 1490nm-TX and 1310nm-RX Wavelength

Utilizing advanced WDM technology, the SFP-1G43-BX40 module operates precisely with a 1490nm-TX and 1310nm-RX wavelength. This precise optical configuration requires a matching counterpart, ensuring efficient data transmission and reception simultaneously over a single strand of fiber.

SFP-1G43-BX40 Module Supporting 40km Transmission

Equipped with a high-quality DFB laser, the SFP-1G43-BX40 module flawlessly supports up to 40km transmission on single-mode fiber. This extended reach makes the 1G fiber transceiver an ideal solution for campus networks, metropolitan area networks, and remote deployments.

SFP-1G43-BX40 Module with Simplex LC Interface

Featuring a standardized simplex LC interface, the SFP-1G43-BX40 module offers quick, secure, and space-saving fiber connections. This single-port design minimizes patch panel clutter, optimizing your fiber optic infrastructure while maintaining excellent low-loss optical signal integrity.

SFP-1G43-BX40 Module with DDM for Real-Time Monitoring

Enhancing network management, the SFP-1G43-BX40 module features built-in DDM for real-time monitoring. Administrators can continuously track critical operating parameters like temperature, voltage, laser bias current, and optical power, ensuring proactive maintenance and preventing unexpected network downtime.


FS SFP-1G43-BX40 Compatible LINK-PP 1.25G SFP Certification

The FS SFP-1G43-BX40 Compatible LINK-PP 1G SFP is manufactured strictly following global industry standards. It guarantees superior quality, exceptional safety, and environmental compliance for all professional networking environments.

Optical Transceivers Testing

Every SFP-1G43-BX40 undergoes a comprehensive quality testing program before shipment. This robust quality control process guarantees that each transceiver meets maximum durability, stability, and optical performance requirements.

SFP-1G43-BX40 Quality Certifications

The SFP-1G43-BX40 holds critical quality certifications, including RoHS, CE, and FCC compliance. These credentials reflect the transceiver's strict adherence to international safety, health, and environmental protection standards.

SFP-1G43-BX40 Certified for Reliable Host-Device Compatibility

Fully compliant with the SFP MSA agreement, the SFP-1G43-BX40 is certified for reliable host-device compatibility. It works flawlessly with major brand switches, routers, and essential network servers.


Rigorous Testing Ensures Reliable SFP Performance

Our strict factory testing protocols ensure that the 1G BiDi SFP delivers absolutely reliable optical performance without unexpected data loss or hardware failures.

Optical

Optical Spectrum Test

The optical spectrum test verifies exact 1490nm and 1310nm wavelength accuracy and laser integrity.

Optical

Eye Pattern Test

An advanced eye pattern test guarantees optimal signal quality and excellent jitter compliance standards.

Optical

Bit Error Rate Test

This essential test confirms flawless data transmission without packet loss over long fiber links.

Optical

Temperature Test

High and low temperature tests ensure stable commercial-grade operation from 0°C to 70°C.


Product Shipping for FS SFP-1G43-BX40 Compatible LINK-PP 1.25G SFP

We prioritize secure product shipping for the FS SFP-1G43-BX40 Compatible LINK-PP 1G BiDi SFP, ensuring your optical modules arrive safely, promptly, and in pristine operational condition.

Anti-Static Protective Packaging

Anti-Static Protective Packaging

Each transceiver is securely sealed inside a premium anti-static protective bag.

Shock-Resistant Transport Protection

Shock-Resistant Transport Protection

We use customized shock-resistant trays to prevent physical damage during transit.

Fast Order Processing and Dispatch

Fast Order Processing and Dispatch

Experience fast order processing and immediate dispatch for your network upgrades.

Global Logistics and International Delivery

Global Logistics and International Delivery

We partner with trusted couriers for reliable, tracked global international delivery.

FS SFP-1G43-BX40 Compatible LINK-PP 1.25G SFP Usage Demonstration

Installing the FS SFP-1G43-BX40 Compatible LINK-PP module is effortless. Simply insert this hot-pluggable 1G SFP into your switch's SFP port, connect your simplex LC fiber patch cord, and pair it with a complementary 1310nm-TX/1490nm-RX module for instant plug-and-play network deployment.

SFP-1G43-BX40 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 SFP-1G43-BX40 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.

FS SFP-1G43-BX40 Compatible LINK-PP 1.25G 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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B***l
Thailand
Verified Purchase
5 .0
2026-06-19
The 1490nm-TX/1310nm-RX pairs fired right up in our Netgear campus setup. Highly recommended! ✨
D***r
Russian Federation
Verified Purchase
5 .0
2026-06-14
Best long-distance SFP 40km for the money.
N***e
Philippines
Verified Purchase
5 .0
2026-06-09
Reliably handles 0-70°C data center temps.
P***n
Czech Republic
Verified Purchase
5 .0
2026-06-05
Easy plug-and-play for our H3C gear. ⚙️
B***g
United Arab Emirates
Verified Purchase
5 .0
2026-05-30
Used these 1G BiDi SFPs to bridge our data center network cabinets. MSA compliance is solid; no weird errors on Dell or HPE gear. The 1310nm-RX sensitivity is exceptionally reliable!
J***r
Mexico
Verified Purchase
5 .0
2026-05-27
Stable 1.25Gbps link, DDM is super helpful.
A***g
Dominican Republic
Verified Purchase
5 .0
2026-05-05
Tested this simplex LC SMF module for a base station backhaul link spanning 35km. Tx/Rx power levels held perfectly steady within the 0 to 70°C temp range. Great ROI overall!
T***n
Singapore
Verified Purchase
5 .0
2026-04-25
Fantastic 1G BiDi SFP, great OEM compatibility!
S***l
Austria
Verified Purchase
5 .0
2026-01-12
Flawless Gigabit Fibre Channel performance. ^_^
C***a
Sweden
Verified Purchase
5 .0
2026-01-01
Perfect LS-BL49311G-40C modules for SMF runs.
K***z
Chile
Verified Purchase
4 .0
2025-12-04
Shipping took an extra day, otherwise these BiDi modules perform flawlessly.
C***n
Costa Rica
Verified Purchase
5 .0
2025-11-07
We needed reliable 40km fiber runs for an outdoor cabinet project. While this is commercial temp, it survived our stress tests. Outstanding Gigabit Fibre Channel performance for mass deployment.
M***k
New Zealand
Verified Purchase
5 .0
2024-03-17
Quick and easy purchase process here the first time. Search and information on products was good.Will use it again when I need them.
H***n
Bulgaria
Verified Purchase
5 .0
2024-03-10
l-p.com is a delight to do business with. Contact them with any concerns and they will assist us to our satisfaction.
M***n
Libyan Arab Jamahiriya
Verified Purchase
5 .0
2024-02-15
I purchased these 10/25/40G Transceiver Modules and Lan Transformer because they were less expensive than I found in other places, and order came Fast and quick. Thank You
E***n
Malaysia
Verified Purchase
5 .0
2024-01-08
It is very early going, but they seem to work flawlessly with Dell switches.
J***s
South Africa
Verified Purchase
5 .0
2023-12-19
This is a great product for the price.
O***i
Ukraine
Verified Purchase
5 .0
2023-11-19
I have used the Chat process with other companies. I can't say enough good things about LINK-PP and their interactions with customers! Simply one of the best I have encountered!! A company with great service!
S***o
Taiwan, Province of China
Verified Purchase
5 .0
2023-08-13
They do a great job. Customer service is very responsive. All of the 10/25/40G Transceiver Modules and Lan Transformer are tested.
L***s
Norway
Verified Purchase
5 .0
2023-07-31
Product was sent extremely Fast.
J***d
Poland
Verified Purchase
5 .0
2023-07-22
Good-quality products at reasonable prices. Fabulous!
E***n
United States
Verified Purchase
5 .0
2023-06-27
I have never had a problem and most of the time with the expedited shipping products arrive promptly even though they have to travel all the way across the country.
R***D
Norway
Verified Purchase
5 .0
2023-04-29
Lan Transformer and Sfp Cage works fine as described. Its good performance deserves such a high price.
S***i
United States
Verified Purchase
5 .0
2023-03-03
The speed is amazing! It only takes three days to my hand, and the price is unparalleled.
E***d
Iran, Islamic Republic of
Verified Purchase
5 .0
2023-02-19
Reliable service. Impressive website operation and very informative.
J***x
Hong Kong
Verified Purchase
5 .0
2023-02-10
Excellent service and stocks just about anything I need.
I***k
Australia
Verified Purchase
5 .0
2023-02-05
Great prices, very quick shipping.
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