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LS-BL55311G-03C 1g bidi sfp 1550nm-tx 1310nm-rx 3km dom simplex lc smf optical transceiver module
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LINK-PP LS-BL55311G-03C 1G BiDi SFP 1550nm-TX/1310nm-RX 3km DOM Simplex LC SMF Optical Transceiver Module

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Product summary

Product
LINK-PP LS-BL55311G-03C 1G BiDi SFP 1550nm-TX/1310nm-RX 3km DOM Simplex LC SMF Optical Transceiver Module
SKU
183770
P/N
LS-BL55311G-03C
Price
$ 6.5
Stock
790 in Stock
Sold
810
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
29 Reviews
5 Questions
810 Sold
$ 6.5 0% OFF )
Free shipping. For wholesale pricing, please contact us directly.
Qty (pcs) :
Unit Price :
1
$ 6.5
100
$ 6.175
1000
$ 5.98
3000
$ 5.785
6000
$ 5.59
Manufacture: LINK-PP P/N: LS-BL55311G-03C SKU: 183770
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-BL55311G-03C 1G BiDi SFP Specifications

The LINK-PP LS-BL55311G-03C is a 1.25 Gbps BiDi SFP optical transceiver that transmits at 1550nm and receives at 1310nm to provide full-duplex data communication over a single simplex LC fiber, with link distances of up to 3 km via single-mode fiber.

LINK-PP Part Number LS-BL55311G-03C Vendor Name LINK-PP
Form Factor SFP Max Data Rate 1.25Gbps
Wavelength 1550nm-TX/1310nm-RX Max Cable Distance 3km
Connector Simplex LC Media SMF
Transmitter Type
FP Receiver Type
PIN
TX Power -15 to -8dBm 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 LINK-PP LS-BL55311G-03C 1G BiDi SFP

This LINK-PP LS-BL55311G-03C 1G BiDi SFP is hot-pluggable and features a BiDi design (1550nm TX/1310nm RX) for 1.25 Gbps bidirectional transmission over a single simplex LC fiber, supporting Fast Ethernet and Gigabit-class links with a reach of up to 3 km over single-mode fiber, thereby reducing fiber count and cabling complexity.

LINK-PP LS-BL55311G-03C 1G BiDi SFP Optical Module

The LINK-PP LS-BL55311G-03C module uses a FP laser for transmission and a PIN photodiode paired with a trans-impedance amplifier (TIA) for reception, delivering reliable optical output and receiver sensitivity suitable for medium-range SMF links.

LS-BL55311G-03C: Reliable 1.25 Gbps Connectivity for Efficient Gigabit Connectivity

This LINK-PP LS-BL55311G-03C BiDi SFP module supports 1.25 Gbps operation for common applications, including Ethernet and fiber aggregation, where a single-fiber solution is preferred.

LS-BL55311G-03C Module with 1550nm-TX/1310nm-RX Wavelength

The standard wavelength pairing of 1550nm (TX) / 1310 nm(RX) provides compatibility with other BiDi modules using the complementary wavelength assignment, as well as with SFP MSA-compliant equipment.

LS-BL55311G-03C Module Supporting 3km Transmission

This LINK-PP LS-BL55311G-03C BiDi transceiver is specified for up to 3km transmission on standard single-mode fiber under normal link conditions, providing reliable bidirectional connectivity for metro access, campus network interconnects, and point-to-point links.

LS-BL55311G-03C Module with Simplex LC Interface

The simplex LC interface provides a single, compact connector for bidirectional operation, driving down fiber consumption, streamlining cable management, and lowering the overall deployment cost.

LS-BL55311G-03C Module with DOM for Real-Time Monitoring

The onboard DOM of the LINK-PP LS-BL55311G-03C module gives access to live telemetry, temperature, supply voltage, and transmitted/received optical power, facilitating early fault detection and easy troubleshooting.


LINK-PP LS-BL55311G-03C 1G BiDi SFP Certification

Each LINK-PP module combines ISO 9001 quality assurance with CE, RoHS, and FCC certifications to ensure premium reliability and seamless deployment.

Optical Transceivers Testing

Precision testing ensures performance consistency across real-world applications.

LS-BL55311G-03C Quality Certifications

Aligned with global standards for safety, durability, and performance assurance.

LS-BL55311G-03C Certified for Reliable Host-Device Compatibility

Validated for reliable use with LINK-PP networking equipment.


Rigorous Testing Ensures Reliable SFP Performance

Thorough inspection procedures ensure that every LINK-PP module runs smoothly and efficiently. To find out more, visit the LINK-PP Test Support Center.

Optical

Optical Spectrum Test

Spectrum analysis verifies precise wavelength alignment for stable and standards-compliant optical transmission.

Optical

Eye Pattern Test

Signal waveform analysis ensures clean eye patterns for improved transmission stability and quality.

Optical

Bit Error Rate Test

BER testing ensures minimal transmission errors and supports dependable network communication.

Optical

Temperature Test

Thermal performance testing ensures reliable operation under both high and low temperature conditions.


Product Shipping for LINK-PP LS-BL55311G-03C 1G BiDi SFP

LINK-PP ensures every module arrives deployment-ready, backed by a logistics system built for fast, safe, and dependable international delivery.

Anti-Static Protective Packaging

Anti-Static Protective Packaging

Protective anti-static layers help prevent damage caused by unwanted electrical charges.

Shock-Resistant Transport Protection

Shock-Resistant Transport Protection

Vibration-resistant packaging ensures the secure delivery of fragile components.

Fast Order Processing and Dispatch

Fast Order Processing and Dispatch

Rapid shipping preparation ensures timely delivery and customer satisfaction.

Global Logistics and International Delivery

Global Logistics and International Delivery

Cross-border logistics solutions facilitate the delivery of goods to customers worldwide.

LINK-PP LS-BL55311G-03C 1G BiDi SFP Usage Demonstration

The LINK-PP LS-BL55311G-03C 1G BiDi SFP transceiver demonstrates reliable single-fiber transmission for short-distance network links. With 1550nm TX/1310nm RX support, a 3km reach, and DOM monitoring, it is ideal for enterprise access switches, campus network connections, security monitoring systems, and Ethernet links.

LS-BL55311G-03C 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-03C 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-03C 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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G***s
Romania
Verified Purchase
5 .0
2026-06-03
Accurate DDM monitoring saves us time. We can check optical health directly from the router CLI.
A***r
Malaysia
Verified Purchase
5 .0
2026-03-24
Reliable optical transceiver for standard indoor deployments. Good alternative to expensive name brand optics.
K***n
Taiwan, Province of China
Verified Purchase
5 .0
2026-02-17
Standard MSA compatibility is spot on. Negotiates gigabit speeds immediately on single mode fiber.
S***z
Singapore
Verified Purchase
4 .0
2026-02-09
Ordered a batch for a server room upgrade. Box was slightly crushed during shipping. The 1G bidi sfps survived and work well, but the outer packaging needs better bubble wrap.
C***z
Indonesia
Verified Purchase
5 .0
2026-01-14
Flawless DOM readings on my Ubiquiti Dream Machine. The 1550nm TX power is very stable. =)
R***e
Indonesia
Verified Purchase
5 .0
2025-12-21
Five stars.
R***s
Singapore
Verified Purchase
5 .0
2025-11-30
Flawless Cisco compatibility.
I***z
Libyan Arab Jamahiriya
Verified Purchase
5 .0
2025-08-25
Fast link initialization. Works exactly as described for standard 1000BASE-BX networking. :-)
J***y
Libyan Arab Jamahiriya
Verified Purchase
5 .0
2025-08-11
Solid value for enterprise procurement. The metal housing feels premium and clicks securely into the cage.
K***z
Ukraine
Verified Purchase
5 .0
2025-08-09
The simplex LC interface is a lifesaver for our congested fiber patch panels. Great product. ;)
T***n
Thailand
Verified Purchase
5 .0
2025-07-26
We use these for short base station backhaul links. Commercial temp is fine since cabinets are cooled.
D***s
Germany
Verified Purchase
5 .0
2025-06-28
Solid indoor transceiver.
R***s
New Zealand
Verified Purchase
5 .0
2025-06-18
Good value optic.
M***z
Belgium
Verified Purchase
4 .0
2025-05-06
Decent shipping speed.
N***t
Brunei Darussalam
Verified Purchase
5 .0
2025-03-20
Saved my fiber strands =D
T***k
Turkey
Verified Purchase
5 .0
2025-01-13
Nice simplex lc module.
E***n
Brazil
Verified Purchase
5 .0
2025-01-12
We deployed 50 units of this LS-BL55311G-03C in our indoor data center. Paired with 1310nm-TX units, the 1G simplex LC SMF links are flawless over 2km. The SFF-8472 DOM metrics integrate perfectly with our SNMP monitoring. Excellent OEM compatibility with Cisco Catalyst switches. Zero dropped packets after a month.
F***s
Lithuania
Verified Purchase
5 .0
2025-01-08
As a network engineer handling campus fiber rollouts, these 3km bidi modules are perfect for short single-mode runs between buildings. The 1550nm DFB laser provides clean signal. I tested them on Aruba and Ubiquiti gear without any unrecognized transceiver errors. Highly reliable for our B2B networking needs. :-)
A***r
Germany
Verified Purchase
5 .0
2024-12-31
DOM works perfectly!
N***t
South Africa
Verified Purchase
5 .0
2024-12-16
Seamless plug and play with our HPE Aruba access switches. No invalid transceiver warnings at all.
J***r
Philippines
Verified Purchase
5 .0
2024-12-07
Good 1G SFP for the price. Deployed 20 for our campus network aggregation layer without issues.
H***a
Japan
Verified Purchase
5 .0
2024-11-08
Installed these in our office floor switches. The 3km range is more than enough for our indoor fiber routing.
S***n
Bangladesh
Verified Purchase
5 .0
2024-08-14
Works great :)
S***l
Cambodia
Verified Purchase
5 .0
2024-07-12
Perfect 3km bidi SFP.
L***s
Macao
Verified Purchase
5 .0
2024-05-13
Evaluating these 1G BiDi SFP transceivers for enterprise procurement. The commercial temperature rating is fine for our climate-controlled server rooms. Real-time DDM tracks RX power accurately. Using simplex LC fiber saves us significant cabling costs on our 1.5km runs. Very stable hardware for our corporate LAN infrastructure.
S***s
Canada
Verified Purchase
4 .0
2024-04-12
Delivery was a bit slow over the weekend, but the simplex SFP works beautifully in our switch.
I***g
Norway
Verified Purchase
5 .0
2024-04-06
I needed a cost-effective solution for a multi-brand switch topology. This 1550nm-TX/1310nm-RX optic negotiated 1000BASE-BX instantly across Juniper and Mikrotik edge devices. Optical attenuation is well within margin for a 2.5km drop. The build quality is excellent for commercial indoor usage. A solid network upgrade choice.
N***n
United Kingdom
Verified Purchase
5 .0
2024-03-07
Works perfectly for my home 10G NAS setup stepped down to 1G. Simplex fiber is so clean. :D
J***s
Germany
Verified Purchase
5 .0
2024-01-07
Used for a 1km run between two office buildings. The 1550nm/1310nm pair is extremely stable. :-D
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