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: 5.59 USD
Availability: InStock
Rating: 4.9 (12 reviews)

# 218420

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

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$ 6.5

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$ 6.175

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$ 5.98

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Manufacture: LINK-PP

P/N: LS-BL31551G-03C

Compatible:: LINK-PP; Ubiquiti

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

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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

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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

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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