I'm planning to deploy around 150 units for a new campus fiber rollout. Do you guys offer any volume discounts for bulk B2B purchases?

Yes, we definitely do! For batch deployments like your campus network, we offer flexible tiered pricing. Since your order exceeds 100 pieces, you'll automatically get a reduced unit price. Reach out to our direct sales team for a custom quote.

We run a mix of Cisco and Ubiquiti switches in our edge cabinets. Will this LS-BL31551G-03C module work seamlessly across both brands without throwing unapproved transceiver errors?

Absolutely! This 1G BiDi SFP is fully MSA compliant and has been rigorously tested for strict OEM interoperability. It operates plug-and-play on both Cisco and Ubiquiti platforms without triggering any vendor lock-in warnings.

Our project timelines are super tight right now. What does your current inventory look like, and how fast can you fulfill and ship an order to the US?

We maintain a highly stable supply chain with deep stock levels for the LS-BL31551G-03C. Most orders process within 2 days, and standard transit to the US typically takes just 2 to 5 business days, keeping your deployment perfectly on schedule.

Are these modules compliant with IEEE 802.3z standards for Gigabit Ethernet? We need to ensure they meet our enterprise networking audit requirements.

Yes, they are 100% compliant with IEEE 802.3z Gigabit Ethernet standards, as well as Gigabit Fibre Channel and SFF-8472 specifications for DOM capabilities. They easily meet rigorous enterprise, telecom, and data center compliance audits.

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Ubiquiti UF-SM-1G-S Compatible LINK-PP 1G SFP BiDi 1310nm-TX/1550nm-RX 3km Simplex LC DOM SMF Optical Transceiver Module

Name: Ubiquiti UF-SM-1G-S Compatible LINK-PP 1G SFP BiDi 1310nm-TX/1550nm-RX 3km Simplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 218420
Price: 5.590 USD
Availability: InStock
Rating: 4.9 (12 reviews)

Product: Ubiquiti UF-SM-1G-S Compatible LINK-PP 1G SFP BiDi 1310nm-TX/1550nm-RX 3km Simplex LC DOM SMF Optical Transceiver Module
SKU: 218420
P/N: LS-BL31551G-03C
Price: $ 6.5
Stock: 1001 in Stock
Sold: 1.7K
Product URL: https://www.l-p.com/products/495234.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

12 Reviews

4 Questions

1.7K Sold

$ 6.5

Free shipping. For wholesale pricing, please contact us directly.

Qty (pcs) :

Unit Price :

$ 6.5

100

$ 6.175

1000

$ 5.98

3000

$ 5.785

6000

$ 5.59

Manufacture: LINK-PP P/N: LS-BL31551G-03C SKU: 218420

Compatible:: LINK-PP; Ubiquiti

Compatible P/N:: UACC-OM-SM-1G-S | 3km; UF-SM-1G-S | 3km

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Estimated delivery time : 3 - 10 days.

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Ubiquiti UF-SM-1G-S Compatible LINK-PP 1G BiDi SFP Specifications

The Ubiquiti UF-SM-1G-S Compatible LINK-PP module is a high-performance 1G BiDi SFP transceiver engineered for reliable Gigabit Ethernet links. Operating over single-mode fiber, this module supports a 1.25Gbps data rate and covers transmission distances up to 3km. It leverages standard Simplex LC connectors and advanced WDM technology, making it an ideal cost-effective solution for optimizing fiber network infrastructure.

Ubiquiti Part Number	UF-SM-1G-S	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1310nm-TX/1550nm-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 Ubiquiti UF-SM-1G-S Compatible LINK-PP 1.25G SFP

This LINK-PP 1G BiDi SFP optical transceiver boasts exceptional hot-pluggable capabilities for seamless integration into existing network setups. It strictly complies with SFP MSA and SFF-8472 standards. Featuring low power consumption and robust laser safety, the UF-SM-1G-S ensures stable, long-lasting connectivity.

Ubiquiti UF-SM-1G-S Compatible LINK-PP 1G BiDi SFP Optical Module

Built with premium components, the Ubiquiti UF-SM-1G-S Compatible LINK-PP 1G BiDi SFP optical module provides outstanding signal integrity. Its single-mode fiber design maximizes data transfer efficiency, offering network administrators a reliable and scalable Gigabit Ethernet communication solution.

UF-SM-1G-S: 1G Connectivity for Campus Networks

The UF-SM-1G-S excels in upgrading Gigabit Ethernet infrastructure across enterprise environments. Delivering robust 1G connectivity for campus networks, this BiDi SFP minimizes cabling costs while maintaining secure, high-speed data transmission between different building facilities.

UF-SM-1G-S Module with 1310nm-TX and 1550nm-RX Wavelength

Utilizing wavelength-division multiplexing, the UF-SM-1G-S module operates with a 1310nm-TX and 1550nm-RX wavelength over a single fiber strand. This single-fiber bidirectional transmission doubles your network capacity, optimizing available optical infrastructure without deploying additional cables.

UF-SM-1G-S Module Supporting 3km Transmission

Engineered for medium-range fiber links, the UF-SM-1G-S module supports up to 3km transmission over standard SMF. This reach perfectly accommodates local area networks and industrial interconnects, guaranteeing lossless optical signals throughout the entire distance.

UF-SM-1G-S Module with Simplex LC Interface

Equipped with an industry-standard connector, the UF-SM-1G-S module features a simplex LC interface. This precise optical receptacle ensures secure fiber patching, minimal insertion loss, and effortless physical maintenance within high-density network switches and routers.

UF-SM-1G-S Module with DOM for Real-Time Monitoring

Designed with intelligent management features, the UF-SM-1G-S module includes DOM for real-time monitoring. Network engineers can proactively track critical transceiver diagnostics, such as temperature, optical power, and voltage, ensuring uninterrupted network stability and performance.

Ubiquiti UF-SM-1G-S Compatible LINK-PP 1.25G SFP Certification

Every Ubiquiti UF-SM-1G-S Compatible LINK-PP 1G SFP undergoes comprehensive evaluation to meet international networking standards. Our rigorous validation processes guarantee exceptional reliability, safety, and compliance for enterprise telecommunications.

UF-SM-1G-S Quality Testing Program

The UF-SM-1G-S quality testing program evaluates every transceiver under extreme conditions. We systematically analyze optical performance, electrical stability, and mechanical durability to prevent network failures.

UF-SM-1G-S Quality Certifications

Boasting extensive industry approvals, the UF-SM-1G-S quality certifications include RoHS, CE, and FDA Class 1 laser safety standards, ensuring eco-friendly and perfectly safe operational deployments.

UF-SM-1G-S Certified for Reliable Host-Device Compatibility

The UF-SM-1G-S is certified for reliable host-device compatibility. It works seamlessly with major networking equipment, preventing vendor lock-in and eliminating recognition errors during system integration.

Rigorous Testing Ensures Reliable SFP Performance

Rigorous testing ensures reliable SFP performance across various networking environments. Each LINK-PP module completes advanced factory diagnostics before reaching your network.

Rigorous Testing Ensures Reliable Transceiver Performance

Optical Spectrum Test

The optical spectrum test verifies precise wavelength accuracy and spectral width limits.

Eye Pattern Test

An eye pattern test guarantees high signal clarity and minimal timing jitter.

Bit Error Rate Test

The bit error rate test ensures flawless data transmission across continuous operations.

Temperature Test

Extensive temperature testing confirms thermal stability under demanding network switch conditions.

Product Shipping for Ubiquiti UF-SM-1G-S Compatible LINK-PP 1.25G SFP

We prioritize secure product shipping for the Ubiquiti UF-SM-1G-S Compatible LINK-PP 1G SFP, utilizing advanced packaging solutions to protect your optical modules globally.

Anti-Static Protective Packaging

Specialized anti-static protective packaging shields components from electrostatic discharge damage.

Shock-Resistant Transport Protection

Custom shock-resistant transport protection safeguards delicate optics against transit vibrations.

Fast Order Processing and Dispatch

Our fast order processing and dispatch procedures ensure minimal waiting times.

Global Logistics and International Delivery

Reliable global logistics and international delivery guarantee prompt worldwide arrivals.

Ubiquiti UF-SM-1G-S Compatible LINK-PP 1.25G SFP Usage Demonstration

Installing the Ubiquiti UF-SM-1G-S Compatible LINK-PP 1G SFP is remarkably simple. Gently slide the hot-pluggable transceiver into your compatible switch port until it clicks, then connect your single-mode fiber patch cord directly into the simplex LC receptacle.

Ubiquiti UF-SM-1G-S Compatible LINK-PP 1G SFP Usage Demonstration

UF-SM-1G-S 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

Professional technical guidance to help customers select the most suitable UF-SM-1G-S modules based on network architecture and application requirements.

Compatibility Verification Support

Compatibility checks and validation to ensure seamless operation with Cisco switches and other supported networking platforms.

Deployment & Installation Assistance

Step-by-step support for installation, configuration, and initial deployment to ensure stable and correct operation.

Long-Term Technical Assurance

Ongoing technical support throughout the product lifecycle to ensure reliable performance in enterprise and carrier-grade networks.

Ubiquiti UF-SM-1G-S 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-day no-reason return and refund

Free replacement for dead-on-arrival (DOA) or defective items within the initial period

Free repair services for manufacturing defects throughout the warranty period

Warranty exclusions and conditions apply

Model Comparison Table

	Current Model UF-SM-1G-S	UACC-OM-SM-1G-S	UACC-OM-SM-1G-S	UF-SM-1G-S

Compatible	Ubiquiti	Ubiquiti	Ubiquiti	Ubiquiti
Data Rate (Max)	1.25Gbps	1.25Gbps	1.25Gbps	1.25Gbps
Wavelength	1310nm-TX/1550nm-RX	1310nm-TX/1550nm-RX	1550nm-TX/1310nm-RX	1550nm-TX/1310nm-RX
Connector	Simplex LC	Simplex LC	Simplex LC	Simplex LC
Cable Distance (Max)	3km	3km	3km	3km
Cable Type	SMF	SMF	SMF	SMF
TX Power	-15 to -8dBm	-15 to -8dBm	-15 to -8dBm	-15 to -8dBm
Receiver Sensitivity	-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
Vendor Name	LINK-PP	LINK-PP	LINK-PP	LINK-PP
Form Factor	SFP	SFP	SFP	SFP
Transmitter Type	FP	FP	FP	FP
Receiver Type	PIN	PIN	PIN	PIN
DOM Support	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

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Questions & Answers
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Q: I'm planning to deploy around 150 units for a new campus fiber rollout. Do you guys offer any volume discounts for bulk B2B purchases? By D***r on 2026-06-06

A: Yes, we definitely do! For batch deployments like your campus network, we offer flexible tiered pricing. Since your order exceeds 100 pieces, you'll automatically get a reduced unit price. Reach out to our direct sales team for a custom quote. By admin on 2026-06-06
Q: We run a mix of Cisco and Ubiquiti switches in our edge cabinets. Will this LS-BL31551G-03C module work seamlessly across both brands without throwing unapproved transceiver errors? By J***z on 2026-01-28

A: Absolutely! This 1G BiDi SFP is fully MSA compliant and has been rigorously tested for strict OEM interoperability. It operates plug-and-play on both Cisco and Ubiquiti platforms without triggering any vendor lock-in warnings. By admin on 2026-01-28
Q: Our project timelines are super tight right now. What does your current inventory look like, and how fast can you fulfill and ship an order to the US? By C***l on 2026-01-04

A: We maintain a highly stable supply chain with deep stock levels for the LS-BL31551G-03C. Most orders process within 2 days, and standard transit to the US typically takes just 2 to 5 business days, keeping your deployment perfectly on schedule. By admin on 2026-01-04
Q: Are these modules compliant with IEEE 802.3z standards for Gigabit Ethernet? We need to ensure they meet our enterprise networking audit requirements. By L***e on 2026-01-02

A: Yes, they are 100% compliant with IEEE 802.3z Gigabit Ethernet standards, as well as Gigabit Fibre Channel and SFF-8472 specifications for DOM capabilities. They easily meet rigorous enterprise, telecom, and data center compliance audits. By admin on 2026-01-02

Customer Reviews
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C***s

Poland

Verified Purchase

5 .0

2026-02-21

Great simplex LC module for the price.

213 Helpful vote Comments

R***a

Netherlands

Verified Purchase

5 .0

2026-02-11

Perfect for our home gigabit NAS link. SFP MSA compatibility is precisely as advertised.

146 Helpful vote Comments

J***l

Spain

Verified Purchase

5 .0

2025-11-29

Good operating temps for indoor racks. Absolutely no issues with Ubiquiti switch compatibility so far.

184 Helpful vote Comments

S***a

Austria

Verified Purchase

5 .0

2025-11-04

Flawless SFP MSA compatibility out of the box! ✨

53 Helpful vote Comments

J***r

Peru

Verified Purchase

5 .0

2025-10-25

DOM monitoring is super accurate on these.

214 Helpful vote Comments

J***e

Viet Nam

Verified Purchase

5 .0

2025-09-15

These SFP BiDi modules run smoothly at 1.25Gbps. Great value for short-haul 3km SMF runs.

169 Helpful vote Comments

M***z

Czech Republic

Verified Purchase

4 .0

2025-09-10

Good 1G BiDi SFP modules, but the outer box was slightly crushed. Performance unaffected.

97 Helpful vote Comments

A***s

Singapore

Verified Purchase

5 .0

2025-06-29

Needed reliable 3km SMF optics for a quick hub-to-spoke network build. These slotted right into the media converters without any hiccups. Great RX sensitivity and clean optical power levels. (^_^)b

106 Helpful vote Comments

A***l

Belgium

Verified Purchase

5 .0

2025-06-28

Solid 1G simplex LC transceiver. Saved us a ton of fiber strands for our LAN!

75 Helpful vote Comments

J***z

Finland

Verified Purchase

5 .0

2024-12-17

Upgraded our park's optical network with LS-BL31551G-03C units. Extremely stable Fast Ethernet protocol support.

47 Helpful vote Comments

S***s

Kuwait

Verified Purchase

5 .0

2024-11-10

True plug and play 1G BiDi SFP.

87 Helpful vote Comments

C***n

Portugal

Verified Purchase

5 .0

2024-11-04

Excellent MSA compliant 1G module for our datacenter deployment. Slicing fiber count in half with Simplex LC BiDi is a huge cost saver for our 2km cross-connects. Will buy bulk.

200 Helpful vote Comments

Verified Purchase

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FS

SFP-1G43-BX20 | 20km

FS SFP-1G43-BX20 Compatible LINK-PP 1G SFP BiDi 1490nm-TX/1310nm-RX 20km Simplex LC DOM SMF Optical Transceiver Module

20 Reviews
|
1.6K Sold

$ 14.8 ~~$ 0.00~~

{"pid":495190,"minimum_ordered_quantity":1,"skulist":[{"pskuid":215398,"cid":752,"pid":495190,"sku":"215398","psvid1":310464,"psvid2":310465,"psvid3":0,"psvid4":0,"left_num":2673,"price":"14.800","strike_price":"0.000","innercode":"","addtime":"2026-07-12 22:39:24","uptime":"2026-07-12 22:39:24","status":0}],"shippingLists":[{"id":"FedEx","name":"FedEx","logo":"res\/shipping\/FEDEX.jpg","price":"0","isfree":0,"total":"0","tax":"","datemin":"3","datemax":"10","unit_price":"14.8","subtotal":14.8}]}
FS

SFP-1G35-BX20 | 20km

FS SFP-1G35-BX20 Compatible LINK-PP 1G SFP BiDi 1310nm-TX/1550nm-RX 20km Simplex LC DOM SMF Optical Transceiver Module

24 Reviews
|
2.8K Sold

$ 14.5 ~~$ 0.00~~

{"pid":495189,"minimum_ordered_quantity":1,"skulist":[{"pskuid":214212,"cid":752,"pid":495189,"sku":"214212","psvid1":308098,"psvid2":308099,"psvid3":0,"psvid4":0,"left_num":814,"price":"14.500","strike_price":"0.000","innercode":"","addtime":"2026-07-08 00:23:31","uptime":"2026-07-08 00:23:31","status":0}],"shippingLists":[{"id":"FedEx","name":"FedEx","logo":"res\/shipping\/FEDEX.jpg","price":"0","isfree":0,"total":"0","tax":"","datemin":"3","datemax":"10","unit_price":"14.5","subtotal":14.5}]}
FS

SFP-1G34-BX20 | 20km

FS SFP-1G34-BX20 Compatible LINK-PP 1G SFP BiDi 1310nm-TX/1490nm-RX 20km DOM Simplex LC SMF Optical Transceiver Module

20 Reviews
|
1.6K Sold

$ 14.5 ~~$ 0.00~~

{"pid":495188,"minimum_ordered_quantity":1,"skulist":[{"pskuid":217846,"cid":752,"pid":495188,"sku":"217846","psvid1":315334,"psvid2":315335,"psvid3":0,"psvid4":0,"left_num":1359,"price":"14.500","strike_price":"0.000","innercode":"","addtime":"2026-07-21 23:40:44","uptime":"2026-07-21 23:40:44","status":0}],"shippingLists":[{"id":"FedEx","name":"FedEx","logo":"res\/shipping\/FEDEX.jpg","price":"0","isfree":0,"total":"0","tax":"","datemin":"3","datemax":"10","unit_price":"14.5","subtotal":14.5}]}
FS

SFP-1G54-BX160-I | 160km

FS SFP-1G54-BX160-I Compatible LINK-PP 1G BiDi SFP 1550nm-TX/1490nm-RX 160km DOM Simplex LC SMF Transceiver Module (Industrial)

30 Reviews
|
871 Sold

$ 60 ~~$ 0.00~~

{"pid":495186,"minimum_ordered_quantity":1,"skulist":[{"pskuid":220124,"cid":752,"pid":495186,"sku":"220124","psvid1":319876,"psvid2":319877,"psvid3":0,"psvid4":0,"left_num":119,"price":"60.000","strike_price":"0.000","innercode":"","addtime":"2026-07-31 02:55:43","uptime":"2026-07-31 02:55:43","status":0}],"shippingLists":[{"id":"FedEx","name":"FedEx","logo":"res\/shipping\/FEDEX.jpg","price":"0","isfree":0,"total":"0","tax":"","datemin":"3","datemax":"10","unit_price":"60","subtotal":60}]}

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Ubiquiti UF-SM-1G-S Compatible LINK-PP 1G SFP BiDi 1310nm-TX/1550nm-RX 3km Simplex LC DOM SMF Optical Transceiver Module

Product summary

Product Details

Ubiquiti UF-SM-1G-S Compatible LINK-PP 1G BiDi SFP Specifications

Key Features of Ubiquiti UF-SM-1G-S Compatible LINK-PP 1.25G SFP

Ubiquiti UF-SM-1G-S Compatible LINK-PP 1G BiDi SFP Optical Module

UF-SM-1G-S: 1G Connectivity for Campus Networks

UF-SM-1G-S Module with 1310nm-TX and 1550nm-RX Wavelength

UF-SM-1G-S Module Supporting 3km Transmission

UF-SM-1G-S Module with Simplex LC Interface

UF-SM-1G-S Module with DOM for Real-Time Monitoring

Ubiquiti UF-SM-1G-S Compatible LINK-PP 1.25G SFP Certification

UF-SM-1G-S Quality Testing Program

UF-SM-1G-S Quality Certifications

UF-SM-1G-S Certified for Reliable Host-Device Compatibility

Rigorous Testing Ensures Reliable SFP Performance

Optical Spectrum Test

Eye Pattern Test

Bit Error Rate Test

Temperature Test

Product Shipping for Ubiquiti UF-SM-1G-S Compatible LINK-PP 1.25G SFP

Anti-Static Protective Packaging

Shock-Resistant Transport Protection

Fast Order Processing and Dispatch

Global Logistics and International Delivery

Ubiquiti UF-SM-1G-S Compatible LINK-PP 1.25G SFP Usage Demonstration

UF-SM-1G-S Technical Support

Pre-Sales Technical Consultation

Compatibility Verification Support

Deployment & Installation Assistance

Long-Term Technical Assurance

Ubiquiti UF-SM-1G-S Compatible LINK-PP 1.25G SFP After-Sales Assurance

Model Comparison Table

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Ubiquiti UF-SM-1G-S Compatible LINK-PP 1G SFP BiDi 1310nm-TX/1550nm-RX 3km Simplex LC DOM SMF Optical Transceiver Module

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