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LS-BL55311G-40I 1g bidi sfp 1550nm-tx 1310nm-rx 40km dom simplex lc smf optical transceiver module (industrial)
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LINK-PP LS-BL55311G-40I 1G BiDi SFP 1550nm-TX/1310nm-RX 40km DOM Simplex LC SMF Optical Transceiver Module (Industrial)

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Product summary

Product
LINK-PP LS-BL55311G-40I 1G BiDi SFP 1550nm-TX/1310nm-RX 40km DOM Simplex LC SMF Optical Transceiver Module (Industrial)
SKU
183769
P/N
LS-BL55311G-40I
Price
SGD 12.065
Stock
1320 in Stock
Sold
780
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: $10 Coupon for Orders , Code: linkpp2610
24 Reviews
3 Questions
780 Sold
S$ 9.5 0% OFF )
Free shipping. For wholesale pricing, please contact us directly.
Qty (pcs) :
Unit Price :
1
SGD 12.065
100
SGD 11.462
1000
SGD 11.1
3000
SGD 10.738
6000
SGD 10.376
Manufacture: LINK-PP P/N: LS-BL55311G-40I SKU: 183769
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 Singapore 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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LINK-PP LS-BL55311G-40I 1G BiDi SFP Specifications

The LINK-PP LS-BL55311G-40I 1G BiDi transceiver delivers stable 1.25 Gbps connectivity over single-mode fiber, supporting transmission distances of up to 40 km. It operates using a wavelength pair of 1550nm (TX) and 1310nm (RX), enabling efficient bidirectional communication over a single fiber strand.

LINK-PP Part Number LS-BL55311G-40I Vendor Name LINK-PP
Form Factor SFP Max Data Rate 1.25Gbps
Wavelength 1550nm-TX/1310nm-RX Max Cable Distance 40km
Connector Simplex LC Media SMF
Transmitter Type DFB BiDi Receiver Type

PIN

TX Power -5 to 0dBm RX Power -23 to -1dBm
Receiver Sensitivity <-24dBm Receiver Overload -1dBm
Operating Temperature Range -40 to 85°C Protocols

Fast Ethernet, Gigabit Fibre Channel, MSA Compliant

Key Features of LINK-PP LS-BL55311G-40I 1G BiDi SFP

Experience stable, long-distance connectivity with the LINK-PP LS-BL55311G-40I 1G BiDi optical module. This industrial-grade transceiver offers 1.25 Gbps data transfer over 40km and supports full-duplex transmission over a single fiber using BiDi technology, ensuring consistent, rugged performance even in tough environments.

LINK-PP LS-BL55311G-40I 1G BiDi SFP Optical Module

This LINK-PP LS-BL55311G-40I optical module is equipped with a DFB laser and a PIN/TIA receiver with matched transmit and receive wavelengths. It enables efficient single-fiber bidirectional communication.

LS-BL55311G-40I: Reliable 1.25 Gbps Connectivity for Efficient Gigabit Connectivity

The LINK-PP LS-BL55311G-40I BiDi SFP module offers reliable connectivity, low latency, and stable data transmission at 1.25 Gbps for Gigabit Ethernet and Fiber Channel applications.

LS-BL55311G-40I Module with 1550nm-TX/1310nm-RX Wavelength

The LS-BL55311G-40I BiDi SFP module is designed with 1550nm transmission and 1310nm reception wavelengths, ensuring long-distance single-fiber bidirectional data transfer with lower cabling costs and faster fiber infrastructure deployment.

LS-BL55311G-40I Module Supporting 40km Transmission

This LINK-PP LS-BL55311G-40I 1G BiDi SFP module supports transmission distances of up to 40 km over single-mode fiber, delivering steady signal performance with low attenuation over long-haul networks.

LS-BL55311G-40I Module with Simplex LC Interface

The simplex LC interface combines transmit and receive functions into a single connection point, thereby decreasing fiber usage, simplifying cable routing, and increasing cost efficiency.

LS-BL55311G-40I Module with DOM for Real-Time Monitoring

The LINK-PP LS-BL55311G-40I BiDi module includes a helpful Digital Optical Monitoring (DOM) function that allows for real-time tracking of critical parameters like temperature, voltage, transmit power, and receive power. This improves network visibility, simplifies maintenance, and enables faster fault diagnosis.


LINK-PP LS-BL55311G-40I 1G BiDi SFP Certification

Every LINK-PP module is crafted to meet ISO 9001 standards and is validated by CE, RoHS, and FCC certifications, enabling superior quality, safety, and long-term operational excellence.

Optical Transceivers Testing

Each module is thoroughly tested to assure consistent performance and long-term reliability across various deployment scenarios.

LS-BL55311G-40I Quality Certifications

LINK-PP modules are designed to meet global certification standards, ensuring high stability, durability, and full compliance with industrial requirements.

LS-BL55311G-40I Certified for Reliable Host-Device Compatibility

Tested for smooth integration with LINK-PP-compatible devices, allowing for simple setup and stable operation.


Rigorous Testing Ensures Reliable SFP Performance

Rigorous testing procedures ensure signal consistency and long-term reliability. For more details, refer to the LINK-PP Test Support Center.

Optical

Optical Spectrum Test

Validates precise wavelength alignment for standards-compliant performance.

Optical

Eye Pattern Test

Checks waveform clarity to support stable signal transmission.

Optical

Bit Error Rate Test

Ensures low BER for reliable data integrity.

Optical

Temperature Test

Assesses performance consistency under changing thermal environments.


Product Shipping for LINK-PP LS-BL55311G-40I 1G BiDi SFP

LINK-PP carefully oversees every stage from packaging to delivery, ensuring each product arrives in optimal condition.

Anti-Static Protective Packaging

Anti-Static Protective Packaging

Static-controlled packaging protects against electrostatic damage.

Shock-Resistant Transport Protection

Shock-Resistant Transport Protection

Rugged transport protection keeps products safe in transit.

Fast Order Processing and Dispatch

Fast Order Processing and Dispatch

Efficient handling systems shorten processing and shipping times.

Global Logistics and International Delivery

Global Logistics and International Delivery

Worldwide distribution channels ensure dependable shipping service.

LINK-PP LS-BL55311G-40I 1G BiDi SFP Usage Demonstration

This LINK-PP LS-BL55311G-40I 1G BiDi SFP module is perfect for long-distance fiber connections to remote network cabinets, industrial control systems, campus networks, and telecom base stations. It works especially well in situations when fiber availability is restricted, and cost efficiency is crucial.

LS-BL55311G-40I 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-BL55311G-40I 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-BL55311G-40I 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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M***t
Spain
Verified Purchase
5 .0
2026-06-01
Solid 1000BASE-BX40-U transceiver for budget-conscious ISP deployments. Optical power budget offers plenty of margin over 25km links.
A***s
Japan
Verified Purchase
5 .0
2026-01-05
Integrated the LS-BL55311G-40I into our utility substation fiber network across a 34km link. Hot-swappable installation went smoothly on HP ProCurve switches. The module maintained clean optical eye diagrams and zero bit errors during a 72-hour continuous stress test under full load. Excellent long-reach solution :-)
J***s
Denmark
Verified Purchase
5 .0
2025-12-07
Works perfectly. =D
A***r
France
Verified Purchase
5 .0
2025-10-09
Zero issues.
J***t
Morocco
Verified Purchase
5 .0
2025-08-10
Good quality 1550/1310 WDM SFP. Hot-pluggable design made replacing faulty legacy optics quick and painless.
E***l
India
Verified Purchase
5 .0
2025-05-22
Great value 1.25Gbps BiDi transceiver for base station backhaul. Recognized on MikroTik CCR2004 without any EEPROM vendor locking issues.
A***z
Iran, Islamic Republic of
Verified Purchase
5 .0
2025-02-15
Upgraded our municipal surveillance backhaul using the LS-BL55311G-40I single-mode SFP. Paired seamlessly with the matching 1310nm-TX/1550nm-RX modules on the remote end. Real-time DOM telemetry allows our network engineers to monitor light levels remotely, preventing potential fiber degradation downtime. Truly impressive industrial optics at a fraction of major OEM prices. =D
A***r
Republic of Korea
Verified Purchase
5 .0
2025-02-06
Bench tested the LINK-PP 1G BiDi 1550nm/1310nm 40km DOM module using an EXFO optical power meter before field installation. Optical insertion loss was consistent across the 1.25G link, and DOM reported exact optical power within 0.2 dB of our test set. Highly satisfied with thermal stability and transmission distance :-D
R***n
Malaysia
Verified Purchase
5 .0
2025-02-04
Flawless optics. ;)
A***h
Bulgaria
Verified Purchase
5 .0
2025-01-04
Replaced expensive OEM 1000BASE-EX BiDi transceivers in our municipal network. Handled sub-zero temperatures and high humidity without any link dropouts.
J***n
Canada
Verified Purchase
5 .0
2024-12-17
Installed this 1G BiDi SFP 40km 1550TX/1310RX optic in our remote outdoor cabinet. Synced instantly with our head-end switch over 32km single-mode fiber.
J***r
Nepal
Verified Purchase
4 .0
2024-11-18
The LS-BL55311G-40I optical transceiver performs as advertised across our 38km link, but delivery took two days longer than promised due to local carrier delay. Module itself is rock solid.
N***t
Iran, Islamic Republic of
Verified Purchase
5 .0
2024-10-19
100% recommended.
G***s
South Africa
Verified Purchase
5 .0
2024-10-06
Fully compatible.
N***n
France
Verified Purchase
5 .0
2024-08-23
We deployed 16 units of the LINK-PP LS-BL55311G-40I across our regional campus backbone links. Operating on a single strand LC fiber run over 30km, optical power levels read -7.1 dBm via DDM/DOM on Cisco Catalyst 3850 switches. The 1550nm-TX/1310nm-RX configuration paired seamlessly with our existing 1310nm-TX modules, cutting fiber leasing expenses by half! :D
T***s
South Africa
Verified Purchase
5 .0
2024-08-23
Competitive B2B pricing and genuine industrial grade components. DDM monitoring functions properly on our NMS netflow dashboard. Will keep LINK-PP as our primary optic supplier.
S***s
Malaysia
Verified Purchase
5 .0
2024-07-31
Plug and play.
G***n
Romania
Verified Purchase
5 .0
2024-07-24
Tested compatibility on Ubiquiti EdgeSwitch and FS patch panels. EEPROM loaded instantly without needing CLI override commands.
B***s
Australia
Verified Purchase
5 .0
2024-06-21
Deployed a batch of these industrial BiDi SFP transceivers in unheated solar-powered relay stations. Operating in extreme temperature swings between day and night, the laser bias current remains stable, and DDM accurately reports voltage and thermal specs. Highly recommended for rugged outdoor optical links ;)
V***s
Macao
Verified Purchase
5 .0
2024-06-18
Top quality.
E***z
Russian Federation
Verified Purchase
5 .0
2024-02-07
Needed a reliable simplex LC SMF optic for inter-building trunking. The 40km capability provides great headroom for spliced optical spans.
S***t
Cambodia
Verified Purchase
5 .0
2024-01-18
Fast shipping! :-)
S***s
Norway
Verified Purchase
5 .0
2024-01-17
Required industrial temperature ratings (-40C to 85C) for roadside traffic monitoring enclosures in Canada. DOM diagnostics give reliable temperature and TX power metrics directly to our SNMP monitor. =)
B***g
Turkey
Verified Purchase
5 .0
2024-01-06
Using these single mode LC simplex SFPs for wireless ISP tower links. Cuts cabling complexity in half while maintaining reliable line rate throughput.
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