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

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Product summary

Product
LINK-PP LS-BL55311G-40C 1G SFP BiDi 1550nm-TX/1310nm-RX 40km Simplex LC DOM SMF Optical Transceiver Module
SKU
181518
P/N
LS-BL55311G-40C
Price
$ 8.5
Stock
1379 in Stock
Sold
1.7K
Product URL
https://www.l-p.com/products/476694.htm
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
40 Reviews
4 Questions
1.7K Sold
$ 8.5 ( 0% OFF )
Free shipping. For wholesale pricing, please contact us directly.
Qty (pcs) :
Unit Price :
1
$ 8.5
100
$ 8.075
1000
$ 7.82
3000
$ 7.565
6000
$ 7.31
Manufacture: LINK-PP P/N: LS-BL55311G-40C SKU: 181518
Compatible:
Cisco
LINK-PP
Brocade
D-Link
FS
Generic
H3C
Juniper
Netgear
TRENDnet
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.
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LINK-PP LS-BL55311G-40C 1G BiDi SFP Specifications

The LINK-PP LS-BL55311G-40C is a high-performance 1G BiDi SFP optical transceiver designed for robust Gigabit Ethernet links. Operating on a simplex LC fiber interface, this single-mode module utilizes 1550nm-TX and 1310nm-RX wavelengths to achieve reliable data transmission up to 40km. It strictly complies with SFP MSA standard specifications.

LINK-PP Part Number LS-BL55311G-40C 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 Receiver Type
 PIN
TX Power -5 to 0dBm RX Power -23 to -1dBm
Receiver Sensitivity <-24dBm DOM Support Yes
Operating Temperature Range 0 to 70°C Protocols

Fast Ethernet, Gigabit Fibre Channel, MSA Compliant

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

This advanced 1G BiDi SFP optical module features low power consumption, hot-pluggable capabilities, and commercial temperature support. The LINK-PP LS-BL55311G-40C ensures seamless integration into diverse networking environments, making it an ideal optical transceiver solution for high-speed, cost-effective fiber optic communications.

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

The LINK-PP LS-BL55311G-40C 1G BiDi SFP optical module delivers exceptional network performance. Built for modern infrastructure, this Gigabit transceiver guarantees stable, bidirectional data flow over a single fiber, maximizing bandwidth efficiency for enterprise environments.

LS-BL55311G-40C: 1G Connectivity for FTTH

Empowering modern broadband networks, the LS-BL55311G-40C provides reliable 1G connectivity for FTTH deployments. This optical transceiver module ensures fast, uninterrupted internet access, perfectly supporting residential broadband and access network upgrades with exceptional cost efficiency.

LS-BL55311G-40C Module with 1550nm-TX and 1310nm-RX Wavelength

Utilizing advanced WDM technology, the LS-BL55311G-40C module operates with a 1550nm-TX and 1310nm-RX wavelength configuration. This precise optical design enables seamless bidirectional communication over single-mode fiber, minimizing signal interference during long-distance data transmission.

LS-BL55311G-40C Module Supporting 40km Transmission

Engineered for extended network reach, the LS-BL55311G-40C module effortlessly supports 40km transmission distances. Equipped with a high-quality DFB laser, this 1G SFP transceiver maintains excellent signal integrity, ensuring long-range optical links remain stable and secure.

LS-BL55311G-40C Module with Simplex LC Interface

Featuring a standard single-mode optical connector, the LS-BL55311G-40C module with simplex LC interface simplifies fiber management. This design reduces cabling costs significantly while maintaining a secure, low-loss connection for high-speed Gigabit Ethernet networking applications.

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

Enhance your network maintenance using the LS-BL55311G-40C module with DOM for real-time monitoring. This built-in digital diagnostic function allows administrators to constantly track vital optical parameters, including temperature, voltage, and laser power, preventing potential failures.

LINK-PP LS-BL55311G-40C 1G SFP Certification

Every LINK-PP LS-BL55311G-40C 1G SFP optical transceiver undergoes stringent evaluation to meet international networking standards, guaranteeing outstanding quality, environmental compliance, and safe operational parameters.

Optical Transceivers Testing

LS-BL55311G-40C Quality Testing Program

Our comprehensive LS-BL55311G-40C quality testing program ensures each optical module delivers peak performance. We conduct thorough evaluations to verify signal integrity and long-term hardware durability.

LS-BL55311G-40C Quality Certifications

Backed by industry-leading LS-BL55311G-40C quality certifications, this 1G BiDi SFP complies fully with CE, FCC, and RoHS standards, offering an environmentally friendly and secure transceiver solution.

ISO9001
This product is in conformity with ISO9001. This system is valid to a company engaging in development, production and supply service of fiber optical products. Please contact us to learn more.
ISO/IEC 27001
ISO/IEC 27001 is an international standard for managing and processing information security. This standard is jointly developed by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). It sets out requirements for establishing, implementing, maintaining, and continually improving an information security management system (ISMS). Ensuring the confidentiality, integrity, and availability of organizational information assets, obtaining an ISO 27001 certificate means that the enterprise has passed the audit conducted by a certification body, proving that its information security management system has met the requirements of the international standard. Please contact us to learn more.
ISO14001
This product is in conformity with ISO14001.It is intended for use by an organization seeking to manage its environmental responsibilities in a systematic manner that contributes to the environmental pillar of sustainability. Please contact us to learn more.
ISO 45001
ISO 45001 is a global standard that sets out the requirements for an occupational health and safety management system (OH&SMS).
RECH
REACH is a European Union regulation concerning the Registration, Evaluation, Authorization and Restriction of Chemicals. It came into force on 1st June 2007 and replaced a number of European Directives and Regulations with a single system. The regulation aims to protect human health and environmental safety, maintain and improve the competitiveness of the EU chemical industry, and develop innovative capabilities for non-toxic and harmless compounds to prevent market fragmentation, increase the transparency of the use of chemicals, promote non-animal experiments, and pursue sustainable social development.Please contact us to learn more.
CE
This product meets the applicable requirements of Directive (EU) 2015/863 of RoHS. It restricts the use of 10 hazardous materials in the manufacture of various types of electronic and electrical equipment: lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers, and four different phthalates. Please contact us to learn more.
FCC
This product fully accords with the FCC, which aims to manage the radio wave and magnetic fields more reasonably. Please contact us to learn more.
CB
CB is an international system operated by IECEE. This product is based on IEC standards for testing the safety performance of electrical products. Please contact us to learn more.
UKCA
This product fully accords with UKCA (UK Conformity Assessed) certificate, which signifies that it meets all relevant quality standards as well as health and safety requirements. Please contact us to learn more.
UL
UL certification is a non-mandatory certification in the United States,mainly testing and certification of product safety performance.Its ultimate purpose is to obtain products with a fairly safe level for the market,and to contribute to ensuring human health and property safety.Please contact us to learn more.

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

The optical module is strictly verified and LS-BL55311G-40C certified for reliable host-device compatibility. It works seamlessly across major switch brands, preventing interoperability issues during deployment.

Rigorous Testing Ensures Reliable SFP Performance

Advanced laboratory procedures and rigorous testing ensures reliable SFP performance, verifying that every Gigabit optical transceiver operates flawlessly under demanding network conditions.

Optical

Optical Spectrum Test

We analyze the center wavelength to guarantee precise and stable optical spectrum test results.

Optical

Eye Pattern Test

The rigorous eye pattern test confirms excellent signal quality and standard optical transmission compliance.

Optical

Bit Error Rate Test

Conducting an extensive bit error rate test ensures flawless, zero-packet-loss data transmission capabilities.

Optical

Temperature Test

A strict temperature test validates the commercial operating range for stable environmental adaptability.

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

We prioritize secure product shipping for LINK-PP LS-BL55311G-40C 1G SFP modules, ensuring your optical transceivers arrive safely and ready for immediate installation.

Anti-Static Protective Packaging

Anti-Static Protective Packaging

Secure anti-static protective packaging perfectly prevents electrostatic discharge damage during transit.

Shock-Resistant Transport Protection

Shock-Resistant Transport Protection

Durable shock-resistant transport protection shields the delicate optical transceiver from impacts.

Fast Order Processing and Dispatch

Fast Order Processing and Dispatch

Experience incredibly fast order processing and dispatch for your urgent network upgrades.

Global Logistics and International Delivery

Global Logistics and International Delivery

We provide reliable global logistics and international delivery for worldwide accessibility.

LINK-PP LS-BL55311G-40C 1G SFP Usage Demonstration

Installing this optical transceiver is straightforward. The LINK-PP LS-BL55311G-40C 1G SFP usage demonstration illustrates simple plug-and-play insertion into compatible switches. Always pair it with a 1310nm-TX module to establish a seamless and highly efficient Gigabit network connection.

LS-BL55311G-40C 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-40C 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-40C 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

LS-BL55311G-40C
Current Model
LS-BL55311G-40C
LS-BL55311G-60C
LS-BL55311G-60C
LS-BL55311GE-10C
LS-BL55311GE-10C
LS-BL55311G-02C
LS-BL55311G-02C
LS-BL55311G-03C
LS-BL55311G-03C
LS-BL31551G-15C
LS-BL31551G-15C
Compatible
LINK-PP
LINK-PP
LINK-PP
LINK-PP
LINK-PP
LINK-PP
Data Rate (Max)
1.25Gbps
1.25Gbps
1.25Gbps
1.25Gbps
1.25Gbps
1.25Gbps
Wavelength
1550nm-TX/1310nm-RX
1550nm-TX/1310nm-RX
1550nm-TX/1310nm-RX
1550nm-TX/1310nm-RX
1550nm-TX/1310nm-RX
1310nm-TX/1550nm-RX
Connector
Simplex LC
Simplex LC
Simplex LC
Simplex LC
Simplex LC
Simplex LC
Cable Distance (Max)
40km
60km
10km
2km
3km
15km
Cable Type
SMF
SMF
SMF
SMF
SMF
SMF
TX Power
-5 to 0dBm
-5 to 0dBm
-9 to 0dBm
-15 to -8dBm
-15 to -8dBm
-5 to 0dBm
Receiver Sensitivity
-23 to -1dBm
-23 to -1dBm
-23 to -1dBm
-23 to -1dBm
-23 to -1dBm
-23 to -1dBm
Operating Temperature
0 to 70°C
0 to 70°C
0 to 70°C
0 to 70°C
0 to 70°C
0 to 70°C
Form Factor
SFP
SFP
SFP
SFP
SFP
SFP
Transmitter Type
DFB
DFB
DFB
FP
FP
FP
Receiver Type
PIN
PIN
PIN
PIN
PIN
PIN
DOM Support
Yes
Yes
Yes
Yes
Yes
Yes
Protocols
Fast Ethernet, Gigabit Fibre Channel, MSA Compliant
Fast Ethernet, Gigabit Fibre Channel, MSA Compliant
Fast Ethernet, Gigabit Fibre Channel, MSA Compliant
Fast Ethernet, Gigabit Fibre Channel, MSA Compliant
Fast Ethernet, Gigabit Fibre Channel, MSA Compliant
Fast Ethernet, Gigabit Fibre Channel, MSA Compliant
Action

LINK-PP

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  4. SFP-GE-BX40
  5. E1MG-1G-BXD-40
  6. SFP-GE-LH40-SM1550-BIDI
  7. DEM-331T
  8. SFP-GE40KT15R13

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Product Drawing LS-BL55311G-40C.pdf Download

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No data
S***s
Venezuela
Verified Purchase
5 .0
2026-05-29
Great budget SMF module for NAS.
84 Helpful vote Comments
K***n
Ukraine
Verified Purchase
5 .0
2026-05-10
Fantastic Link-PP optic! It paired with our Brocade network adapters without any CLI errors.
161 Helpful vote Comments
W***a
Germany
Verified Purchase
5 .0
2026-03-18
Perfect 40km transmission distance on SMF. Excellent optical transceiver for our enterprise access.
122 Helpful vote Comments
M***e
Switzerland
Verified Purchase
4 .0
2026-03-01
Arrived a day late but the 1G BiDi module works flawlessly on Cisco.
48 Helpful vote Comments
D***l
United Kingdom
Verified Purchase
5 .0
2026-02-22
Plug and play gigabit fiber module! ⚡
124 Helpful vote Comments
W***n
Republic of Korea
Verified Purchase
5 .0
2026-01-23
Great 1G SFP BiDi transceiver for long-reach fiber! Connects our warehouses beautifully.
97 Helpful vote Comments
A***s
France
Verified Purchase
5 .0
2026-01-20
Exactly as described. Great 1550nm/1310nm optic!
28 Helpful vote Comments
J***g
Hong Kong
Verified Purchase
5 .0
2025-12-18
Reliable 1.25Gbps data rate. Exactly what our machine room needed for cross-connects!
191 Helpful vote Comments
M***e
Bolivia
Verified Purchase
5 .0
2025-12-18
We needed reliable cell tower backhaul using 1550nm-TX/1310nm-RX wavelengths. These 1G Bidi SFP modules run cool at 45°C in outdoor cabinets. TX power sits perfectly around -3dBm. Zero packet loss!
202 Helpful vote Comments
J***e
Japan
Verified Purchase
5 .0
2025-12-02
Perfect for our server room upgrade.
61 Helpful vote Comments
J***n
Bolivia
Verified Purchase
5 .0
2025-12-02
Excellent total cost of ownership for data center mass deployment. Tested MSA compliance on Netgear and FS switches without a hitch. Solid DFB laser performance over 40km single-mode fiber links.
114 Helpful vote Comments
C***s
Spain
Verified Purchase
5 .0
2025-10-12
Upgraded my home 10G NAS gateway using this 1G fallback optic for distant ISP lines. DOM function is super handy for monitoring receiver sensitivity. Works right out of the box!
183 Helpful vote Comments
K***r
Ukraine
Verified Purchase
5 .0
2025-10-11
Fast shipping and great MSA compatibility!
21 Helpful vote Comments
B***l
Germany
Verified Purchase
5 .0
2025-10-06
Solid 40km distance, no dropped packets.
165 Helpful vote Comments
E***l
Costa Rica
Verified Purchase
5 .0
2025-09-30
Solid single mode transceiver! Easy setup for our outdoor cabinet fiber ring topology.
233 Helpful vote Comments
M***g
Denmark
Verified Purchase
5 .0
2025-08-28
The simplex LC connector snaps in securely. DOM support is accurate and very helpful.
203 Helpful vote Comments
P***n
Colombia
Verified Purchase
5 .0
2025-08-11
Deployed a batch for our campus fiber networking. DDM readings are incredibly stable over 35km SMF links. Seamless compatibility with our mixed Juniper and H3C switches. Highly recommend these 1.25G optics!
37 Helpful vote Comments
A***n
Netherlands
Verified Purchase
5 .0
2025-08-07
Flawless OEM compatibility! Plugged this 1550nm/1310nm module into our D-Link switch instantly.
41 Helpful vote Comments
J***n
Spain
Verified Purchase
5 .0
2025-08-04
DDM readings are spot on.
48 Helpful vote Comments
J***r
Spain
Verified Purchase
5 .0
2025-07-05
Cost-effective gigabit ethernet solution. Runs well within the 0 to 70°C operating temperature.
203 Helpful vote Comments
J***g
Turkey
Verified Purchase
5 .0
2025-06-20
Smooth 1.25Gbps link, very reliable!
117 Helpful vote Comments
A***a
Portugal
Verified Purchase
5 .0
2025-05-25
Works perfectly on my Cisco switch!
60 Helpful vote Comments
C***n
Ghana
Verified Purchase
5 .0
2025-05-24
Top notch Simplex LC transceiver.
201 Helpful vote Comments
S***s
Russian Federation
Verified Purchase
5 .0
2025-04-20
Awesome 1G Bidi SFP for the price.
120 Helpful vote Comments
M***n
Japan
Verified Purchase
4 .0
2025-03-16
Cardboard packaging was slightly dented, yet the 40km Simplex LC transceiver tested perfectly fine.
185 Helpful vote Comments
E***l
Brazil
Verified Purchase
5 .0
2024-06-22
Quick and easy ordering process..best price i found online for this item!
83 Helpful vote Comments
A***o
Canada
Verified Purchase
5 .0
2024-06-02
Excellent products, and good prices! No problems! Great website.
13 Helpful vote Comments
P***u
Finland
Verified Purchase
5 .0
2024-05-21
Thank you. Arrived on time and without damage.
11 Helpful vote Comments
M***e
Philippines
Verified Purchase
5 .0
2024-03-04
Super customer experience in terms of Fast delivery. Delivered as promised.
51 Helpful vote Comments
A***f
United States
Verified Purchase
5 .0
2023-11-17
Excellent. Fast and reliable delivery. Well priced items
7 Helpful vote Comments
M***o
Malaysia
Verified Purchase
5 .0
2023-11-14
Link-PP always delivers high-quality Optical Transceiver Module and this one is also within my expectation.
12 Helpful vote Comments
R***h
Macao
Verified Purchase
5 .0
2023-10-09
Very good service, along with very good product. Thanks!!!!
49 Helpful vote Comments
G***n
France
Verified Purchase
5 .0
2023-10-05
i love the clock that shows you how long you have to order to get tommorow.
6 Helpful vote Comments
C***y
Belarus
Verified Purchase
5 .0
2023-10-03
I was very happy with this order.
19 Helpful vote Comments
T***r
Norway
Verified Purchase
5 .0
2023-07-08
What a fun online buying experience
17 Helpful vote Comments
R***n
Indonesia
Verified Purchase
5 .0
2023-06-11
Good product. Delivery was Fast.
26 Helpful vote Comments
T***r
United Kingdom
Verified Purchase
5 .0
2023-06-06
pleased with the purchase!
22 Helpful vote Comments
O***g
Italy
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5 .0
2023-05-16
Great service, Fast shipping and great pricing.
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B***s
Brazil
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5 .0
2023-04-04
Items correct and Fast shipping.
89 Helpful vote Comments
A***t
Israel
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5 .0
2023-01-25
This is my first time, I hope everthing turns out ok. and that I have no issues. Thank you
18 Helpful vote Comments
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LS-BL55311G-40C 1g sfp bidi 1550nm-tx 1310nm-rx 40km simplex lc dom smf optical transceiver module

LINK-PP LS-BL55311G-40C 1G SFP BiDi 1550nm-TX/1310nm-RX 40km Simplex LC DOM SMF Optical Transceiver Module

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