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LS-BL27331G-80C 1g bidi sfp 1270nm-tx 1330nm-rx 80km dom lc smf optical transceiver module
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LINK-PP LS-BL27331G-80C 1G BiDi SFP 1270nm-TX/1330nm-RX 80km DOM LC SMF Optical Transceiver Module

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Product summary

Product
LINK-PP LS-BL27331G-80C 1G BiDi SFP 1270nm-TX/1330nm-RX 80km DOM LC SMF Optical Transceiver Module
SKU
203924
P/N
LS-BL27331G-80C
Price
$ 19.6
Stock
850 in Stock
Sold
2.2K
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
25 Reviews
4 Questions
2.2K Sold
$ 19.6 0% OFF )
Free shipping. For wholesale pricing, please contact us directly.
Qty (pcs) :
Unit Price :
1
$ 19.6
100
$ 18.62
1000
$ 18.032
3000
$ 17.444
6000
$ 16.856
Manufacture: LINK-PP P/N: LS-BL27331G-80C SKU: 203924
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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Total Price:
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LINK-PP LS-BL27331G-80C 1G BiDi SFP Specifications

The LINK-PP LS-BL27331G-80C is a high-reach, 1.25-Gbps BiDi SFP transceiver designed for efficient point-to-point connections via single-mode fiber. With a simplex LC interface, it utilizes transmit and receive wavelengths of 1270 and 1330 nanometers, respectively, to enable full-duplex communication on a single fiber with a link distance of up to 80 kilometers.

LINK-PP Part Number LS-BL27331G-80C Vendor Name LINK-PP
Form Factor SFP Max Data Rate 1.25Gbps
Wavelength 1270nm-TX/1330nm-RX Max Cable Distance 80km
Connector Simplex LC Media SMF
Transmitter Type DFB BiDi Receiver Type PIN
TX Power 0 to +5dBm RX Power -26 to -1dBm
Receiver Sensitivity <-26dBm Receiver Overload -1dBm
Operating Temperature Range 0 to 70°C Protocols IEEE 802.3ae, SFP+ MSA, SFF-8431, SFF-8472, CPRI

Key Features of LINK-PP LS-BL27331G-80C 1G BiDi SFP

The LINK-PP LS-BL27331G-80C 1G BiDi SFP cuts fiber use while ensuring reliable Gigabit performance for long-distance links. Its bidirectional design (1270nm-TX/1330nm-RX) enables two-way transmission over a single fiber, reaching up to 80km on standard single-mode fiber. Featuring a simplex LC connector, DOM monitoring, and a 1.25 Gbps data rate, it delivers cleaner cabling, easier deployment, and higher efficiency for campus, metro-edge, and inter-building applications.

LINK-PP LS-BL27331G-80C 1G SFP Optical Module

The BiDi WDM architecture of the LINK-PP LS-BL27331G-80C module allows transmit and receive traffic to travel in opposite directions on a single strand of fiber. This results in fewer fibers, less cable congestion, and more room for future expansion in demanding network environments.

LS-BL27331G-80C: Reliable 1.25 Gbps Connectivity for Network Expansion

With a 1.25 Gbps data rate, the LINK-PP LS-BL27331G-80C BiDi module is a practical fit for networks that need stable Gigabit connectivity over long distances. It offers a straightforward way to extend optical links without increasing fiber count or complicating the physical layer design.

LS-BL27331G-80C Module with 1270nm-TX/1330nm-RX Wavelength

The  LINK-PP LS-BL27331G-80C 1G BiDi SFP module transmits at 1270nm and receives at 1330nm, making it suitable for paired BiDi deployments with complementary wavelengths at each link end. This arrangement enables efficient single-mode fiber communication and reliable signal separation.

LS-BL27331G-80C Module Supporting 80km Transmission

With support for an 80 km reach, the LINK-PP LS-BL27331G-80C 1G BiDi transceiver is ideal for long-distance installations where standard short-reach optics are insufficient. It is well-suited for inter-building links, metro-edge networks, and other long-span applications requiring a compact, reliable optical module.

LS-BL27331G-80C Module with Simplex LC Interface

The simplex LC port keeps the installation neat and efficient by using just one fiber for bidirectional traffic. This design helps reduce cabling costs, simplify routing, and make patch panel management easier in space-conscious environments.

LS-BL27331G-80C Module with DOM for Real-Time Monitoring

With real-time tracking of key parameters such as optical power, temperature, voltage, and bias current, the Digital Optical Monitoring (DOM) function helps preserve link health, identify issues early, and simplify proactive day-to-day maintenance.


LINK-PP LS-BL27331G-80C 1G BiDi SFP Certification

Manufactured in accordance with ISO 9001 excellence standards and validated by CE, RoHS, and FCC compliance, every LINK-PP module guarantees high reliability and broad global acceptance.

Optical Transceivers Testing

The quality testing program inspects each unit thoroughly to ensure reliable operation  across a range of deployment scenarios.

LS-BL27331G-80C Quality Certifications

Certified manufacturing standards help guarantee strong performance and consistent network dependability.

LS-BL27331G-80C Certified for Reliable Host-Device Compatibility

Completely tested with LINK-PP networking equipment to assure seamless plug-and-play operation.


Rigorous Testing Ensures Reliable SFP Performance

LINK-PP's exhaustive validation process guarantees high uptime and consistent performance. Browse the LINK-PP Test Support Center for more details.

Optical

Optical Spectrum Test

Ensures the module meets wavelength specifications and optical transmission requirements.

Optical

Eye Pattern Test

Analyzes signal patterns for better waveform definition and reduced interference.

Optical

Bit Error Rate Test

Confirms dependable transmission quality by minimizing signal errors.

Optical

Temperature Test

Guarantees stable performance under both low and high temperature conditions.


Product Shipping for LINK-PP LS-BL27331G-80C 1G BiDi SFP

Ready for immediate use, LINK-PP modules are shipped through a streamlined logistics network that emphasizes speed, security, and global reach.

Anti-Static Protective Packaging

Anti-Static Protective Packaging

Specialized anti-static materials help minimize ESD-related damage throughout transportation and warehousing.

Shock-Resistant Transport Protection

Shock-Resistant Transport Protection

Durable transport packaging adds an extra layer of defense to maintain product condition throughout shipment.

Fast Order Processing and Dispatch

Fast Order Processing and Dispatch

Efficient processing systems enable faster order preparation, packing, and shipment release.

Global Logistics and International Delivery

Global Logistics and International Delivery

A dependable international shipping network ensures reliable global product distribution.

LINK-PP LS-BL27331G-80C 1G BiDi SFP Usage Demonstration

The LINK-PP LS-BL27331G-80C 1G BiDi SFP delivers reliable long-reach BiDi connectivity for 1.25 Gbps optical systems, Gigabit Ethernet, and 1.063Gbps Fibre Channel, perfect for applications prioritizing fiber conservation, clean cabling, and dependable transmission.

LS-BL27331G-80C 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-BL27331G-80C 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-BL27331G-80C 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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Questions & Answers

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No data
  • Q: Can I use this module for long-distance enterprise fiber links? By J***z on 2026-03-15

    A: Yes. It's designed for commercial networking environments such as enterprise campuses, office buildings, ISP access networks, and data centers. The module supports 1.25Gbps Gigabit Ethernet transmission up to 80km over single-mode fiber and includes DOM diagnostics for convenient monitoring. By admin on 2026-03-16

  • Q: Does the module support DOM or DDM monitoring? By D***t on 2025-12-25

    A: Yes. Digital Optical Monitoring is supported, allowing you to monitor transmit power, receive power, temperature, voltage, and laser bias current from supported switches. By admin on 2025-12-25

  • Q: Can I use this module over one fiber instead of two? By N***s on 2024-10-01

    A: Yes. This is a BiDi optical transceiver that transmits at 1270nm and receives at 1330nm through a single LC simplex connection on single-mode fiber. It must be paired with the complementary 1330nm TX / 1270nm RX module. By admin on 2024-10-01

  • Q: Is this module compatible with Cisco Catalyst and other OEM switches? By P***n on 2024-03-09

    A: Yes. It is designed for broad OEM compatibility and is commonly deployed in Cisco-compatible environments as well as many other major switch brands. Always verify your switch model and coding requirements before ordering. By admin on 2024-03-09

Customer Reviews

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Christopher White
Belgium
Verified Purchase
5 .0
2026-06-12
Installed into our enterprise edge switches for remote warehouse connectivity. Low optical attenuation, clean DOM statistics, and stable Gigabit Ethernet throughput throughout testing.
Elizabeth LastNames
New Zealand
Verified Purchase
5 .0
2026-04-19
We've now deployed more than sixty LS-BL27331G-80C modules across multiple customer sites, including outdoor cabinets, campus aggregation switches, and regional fiber distribution points. The 1270nm transmitter and 1330nm receiver combination integrated seamlessly with our existing BiDi infrastructure. During burn-in testing we monitored transmit power, receive power, module temperature, and supply voltage through DOM, and every module remained within specification. Compatibility testing covered Cisco Catalyst, Cisco IE industrial switches, MikroTik CRS series, and several unmanaged industrial Ethernet switches without EEPROM recognition issues. For organizations looking for a reliable 1G BiDi SFP 80km optical transceiver with single LC interface and single-mode fiber support, this module delivers consistent field performance while significantly reducing hardware costs.
Ryan Harris
Brazil
Verified Purchase
5 .0
2026-03-22
Great 1G BiDi SFP for long fiber runs.
Ashley Gonzalez
South Africa
Verified Purchase
5 .0
2026-02-22
Excellent value compared with branded optics.
Benjamin Morgan
Israel
Verified Purchase
5 .0
2026-01-13
Purchased twenty pieces for a data room upgrade. All units reported consistent DDM values, identical firmware behavior, and clean optical output. Batch quality was impressive.
John Campbell
Denmark
Verified Purchase
5 .0
2026-01-02
DOM readings are stable and accurate.
Chloe Lee
India
Verified Purchase
5 .0
2025-10-22
Running these in Cisco and MikroTik switches across our campus fiber network. Every module established the link immediately without firmware warnings. Perfect solution for long-distance single-mode fiber connections. :)
Larry Phillips
Libyan Arab Jamahiriya
Verified Purchase
5 .0
2025-10-03
We replaced several expensive OEM 1000BASE-BX80 transceivers with this model. The 1270nm TX / 1330nm RX wavelength pair matched our existing deployment perfectly. DOM monitoring helped verify optical power after installation. Very happy with the purchase.
Brooke Adams
Israel
Verified Purchase
5 .0
2025-08-14
Works great for our remote security camera fiber network. Simple install and stable connection. ;)
Rebecca Taylor
Cambodia
Verified Purchase
5 .0
2025-07-08
Works perfectly over a single LC SMF strand.
Sean Murphy
Italy
Verified Purchase
5 .0
2025-05-25
We use this 1.25Gbps BiDi SFP for cellular base station backhaul. The 80km reach eliminated the need for additional repeaters on one route. Signal quality has remained excellent for months.
Andrew Moore
Republic of Korea
Verified Purchase
5 .0
2025-05-04
The temperature support was exactly what we needed.
Kenneth White
Brazil
Verified Purchase
5 .0
2025-02-24
Our ISP deployment required dependable 1000BASE-BX connectivity over approximately 76km of existing single-mode fiber. These modules paired correctly with the complementary wavelength unit, maintained stable receive power, and showed no CRC errors after continuous traffic testing. DOM information closely matched our optical test equipment, making acceptance testing much easier. The combination of temperature support, OEM compatibility, and competitive pricing makes this a practical alternative to original branded optics for carrier and enterprise networks.
George Lee
Belarus
Verified Purchase
5 .0
2025-02-19
Good packaging and anti-static protection. Installation took less than two minutes and the optical link came up immediately.
Madison Perez
Argentina
Verified Purchase
5 .0
2024-12-08
Passed every compatibility check we tried.
Megan Cook
Sweden
Verified Purchase
5 .0
2024-09-21
Nice option if you're searching for a Cisco compatible 1G BiDi SFP 80km module. It worked in Catalyst switches without any configuration changes.
Alexis Garcia
Maldives
Verified Purchase
5 .0
2024-09-17
Installed in an outdoor cabinet connected to a surveillance backbone. The operating temperature rating gave us confidence for year-round deployment. Link has remained stable during both hot afternoons and freezing nights.
Richard Garcia
Singapore
Verified Purchase
5 .0
2024-09-02
Fiber utilization was reduced by half since BiDi uses only one single-mode fiber. Saved us a considerable amount during a campus expansion project. :D
Christian Nelson
Israel
Verified Purchase
4 .0
2024-07-21
Box arrived slightly dented, but the module worked flawlessly.
John Young
United Arab Emirates
Verified Purchase
5 .0
2024-07-11
Reliable 80km optical transceiver module.
Brandon Wright
Philippines
Verified Purchase
4 .0
2024-06-28
Shipping was a little slower than expected, and one carton had a small scratch. Fortunately every transceiver passed testing, so performance wasn't affected.
Jonathan Allen
Brazil
Verified Purchase
5 .0
2024-05-18
We tested compatibility with several OEM platforms including Cisco, Ubiquiti and TP-Link. Every port recognized the module correctly. That's exactly what our purchasing team wanted.
Richard Lewis
Nepal
Verified Purchase
5 .0
2024-04-25
Using these for long-distance Ethernet links between factory buildings. The LC connector fits securely, optical power stays within specification, and remote DOM monitoring simplifies maintenance. Definitely ordering more. :)
Charles Lewis
New Zealand
Verified Purchase
5 .0
2024-03-27
Plugged in and linked up instantly. :)
Amelia Rogers
Russian Federation
Verified Purchase
5 .0
2024-02-19
Solid OEM compatibility, no complaints. ^_^
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