I'm planning a large campus fiber rollout and need about 500 units. Do you guys offer volume discounts for enterprise procurement?

Yes, we do! For bulk deployments, we offer tiered wholesale pricing. Ordering over 100 units significantly drops the unit cost, driving down your overall budget. Reach out to our sales team directly for a customized quote on your 500-unit batch.

Are these transceivers compliant with standard telecom protocols? We need them for Gigabit Ethernet and Fibre Channel applications.

Yes. The module complies natively with the Gigabit Ethernet standard (1.25Gbps) as well as 1G Fibre Channel specifications. It meets RoHS requirements and strictly follows the SFP Multi-Source Agreement (MSA) for universal industry compliance.

Does this module require single-mode or multi-mode fiber? And what connector type do I need to patch it into my switches?

This specific module requires standard 9/125碌m Single-Mode Fiber (SMF) to achieve the full 3km distance. Since it is a BiDi transceiver transmitting at 1310nm-TX and receiving at 1550nm-RX simultaneously, you will need a Simplex LC fiber patch cable to connect it.

We use a mix of Cisco Catalyst and Ubiquiti EdgeSwitches in our network. Will these 1G BiDi modules work across different OEM brands without throwing unsupported errors?

Absolutely. The LS-BL31551G-03I is fully MSA compliant and extensively tested for multi-brand interoperability. It acts as a perfect Cisco compatible SFP and works flawlessly with Ubiquiti, Juniper, and other major switch brands right out of the box without any command-line workarounds.

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LINK-PP LS-BL31551G-03I 1G SFP BiDi 1310nm-TX/1550nm-RX 3km Simplex LC DOM SMF Optical Transceiver Module (Industrial)

Name: LINK-PP LS-BL31551G-03I 1G SFP BiDi 1310nm-TX/1550nm-RX 3km Simplex LC DOM SMF Optical Transceiver Module (Industrial)
Brand: LINK-PP
SKU: 183654
Price: 6.382 USD
Availability: InStock
Rating: 5 (24 reviews)

# 183654

Product: LINK-PP LS-BL31551G-03I 1G SFP BiDi 1310nm-TX/1550nm-RX 3km Simplex LC DOM SMF Optical Transceiver Module (Industrial)
SKU: 183654
P/N: LS-BL31551G-03I
Price: $ 7.42
Stock: 840 in Stock
Sold: 650
Product URL: https://www.l-p.com/products/478624.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

24 Reviews

4 Questions

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650 Sold

$ 7.42

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100

$ 7.049

1000

$ 6.827

3000

$ 6.604

6000

$ 6.382

Manufacture: LINK-PP

P/N: LS-BL31551G-03I

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

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LINK-PP LS-BL31551G-03I 1G BiDi SFP Specifications

The LINK-PP LS-BL31551G-03I is a robust industrial-grade 1G BiDi SFP optical transceiver designed for high-performance Gigabit Ethernet connectivity. Utilizing WDM technology, this single-mode module transmits at a 1310nm wavelength and receives at 1550nm over a simplex LC interface. It features a reliable FP laser, guaranteeing exceptional stability across extended temperature ranges for demanding 3km networking applications.

LINK-PP Part Number	LS-BL31551G-03I	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	-40 to 85°C	Protocols	Fast Ethernet, Gigabit Fibre Channel, MSA Compliant

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Q: I'm planning a large campus fiber rollout and need about 500 units. Do you guys offer volume discounts for enterprise procurement? By P***z on 2026-05-01

A: Yes, we do! For bulk deployments, we offer tiered wholesale pricing. Ordering over 100 units significantly drops the unit cost, driving down your overall budget. Reach out to our sales team directly for a customized quote on your 500-unit batch. By admin on 2026-05-01
Q: Are these transceivers compliant with standard telecom protocols? We need them for Gigabit Ethernet and Fibre Channel applications. By M***z on 2025-11-18

A: Yes. The module complies natively with the Gigabit Ethernet standard (1.25Gbps) as well as 1G Fibre Channel specifications. It meets RoHS requirements and strictly follows the SFP Multi-Source Agreement (MSA) for universal industry compliance. By admin on 2025-11-19
Q: Does this module require single-mode or multi-mode fiber? And what connector type do I need to patch it into my switches? By J***n on 2025-09-17

A: This specific module requires standard 9/125碌m Single-Mode Fiber (SMF) to achieve the full 3km distance. Since it is a BiDi transceiver transmitting at 1310nm-TX and receiving at 1550nm-RX simultaneously, you will need a Simplex LC fiber patch cable to connect it. By admin on 2025-09-17
Q: We use a mix of Cisco Catalyst and Ubiquiti EdgeSwitches in our network. Will these 1G BiDi modules work across different OEM brands without throwing unsupported errors? By C***z on 2025-07-03

A: Absolutely. The LS-BL31551G-03I is fully MSA compliant and extensively tested for multi-brand interoperability. It acts as a perfect Cisco compatible SFP and works flawlessly with Ubiquiti, Juniper, and other major switch brands right out of the box without any command-line workarounds. By admin on 2025-07-03

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C***n

United Kingdom

Verified Purchase

5 .0

2026-05-07

Replaced our old dual-fiber setup with these 1G BiDi SFP modules. WDM technology cut our fiber cabling costs in half! Solid 3km transmission with zero packet drop during our 72-hour stress test.

19 Helpful vote Comments

J***e

United Arab Emirates

Verified Purchase

5 .0

2026-04-14

Simplex LC 3km spec is highly accurate.

170 Helpful vote Comments

K***z

Poland

Verified Purchase

5 .0

2026-04-08

Top tier industrial optical transceiver.

195 Helpful vote Comments

R***z

Russian Federation

Verified Purchase

5 .0

2026-03-21

Fast deployment in our outdoor cabinets. The Simplex LC interface saves so much fiber!

81 Helpful vote Comments

W***z

Peru

Verified Purchase

5 .0

2026-03-17

Excellent 1G BiDi SFP for our home 1G NAS setup over single-mode fiber.

45 Helpful vote Comments

D***e

Singapore

Verified Purchase

5 .0

2026-03-09

Tested on multiple switches. Cisco compatible SFP performance without the crazy OEM markup.

36 Helpful vote Comments

D***r

Chile

Verified Purchase

5 .0

2026-03-07

Perfect for our campus fiber network.

190 Helpful vote Comments

M***s

Ecuador

Verified Purchase

5 .0

2026-03-01

Solid 1310nm-TX/1550nm-RX performance on our link.

52 Helpful vote Comments

J***z

Chile

Verified Purchase

5 .0

2026-02-27

Works perfect in extreme cold! ❄️

121 Helpful vote Comments

J***n

Thailand

Verified Purchase

5 .0

2026-02-08

The FP laser and PIN receiver combo guarantees stable gigabit links in harsh environments.

93 Helpful vote Comments

J***z

Colombia

Verified Purchase

5 .0

2025-10-25

Cheap and reliable 1G BiDi SFP.

44 Helpful vote Comments

C***z

France

Verified Purchase

5 .0

2025-09-06

Great MSA compliant transceiver, plug and play.

23 Helpful vote Comments

R***n

Netherlands

Verified Purchase

5 .0

2025-09-06

Great cost-effective solution for smart grid networking. 3km distance covers our whole facility.

93 Helpful vote Comments

K***s

Spain

Verified Purchase

5 .0

2025-09-01

Impressive Simplex LC 3km optics. We use these for base station backhaul where operating temperatures hit 80°C in summer. The industrial optical transceiver handles the heat effortlessly, maintaining a perfect 1.25Gbps link. ☀️

211 Helpful vote Comments

J***z

Finland

Verified Purchase

5 .0

2025-08-29

Deployed 50 units for factory automation. The -40 to 85°C temp range is legit!

29 Helpful vote Comments

C***e

Saudi Arabia

Verified Purchase

5 .0

2025-08-03

Rugged design, survived -40°C testing.

160 Helpful vote Comments

A***z

France

Verified Purchase

5 .0

2025-07-01

Highly recommend this MSA compliant transceiver for bulk data center rollouts. Zero dead modules.

91 Helpful vote Comments

L***n

Belgium

Verified Purchase

4 .0

2025-05-12

Arrived a day late. Otherwise, solid industrial optical transceiver for our outdoor cabinets.

74 Helpful vote Comments

R***z

Poland

Verified Purchase

5 .0

2025-03-15

Fixed our base station backhaul issue!

192 Helpful vote Comments

D***r

Belgium

Verified Purchase

5 .0

2025-03-06

Reliable 1310nm-TX/1550nm-RX modules. The DOM features help us monitor voltage perfectly in real-time.

46 Helpful vote Comments

J***r

Czech Republic

Verified Purchase

5 .0

2025-02-23

OEM compatibility is 100% spot on.

195 Helpful vote Comments

B***s

Costa Rica

Verified Purchase

5 .0

2024-12-28

We strictly require industrial grade gear for our telecom towers. The LS-BL31551G-03I held up perfectly during extreme weather. DOM readouts are highly accurate, and cross-brand switch compatibility saved our recent deployment.

131 Helpful vote Comments

J***l

Finland

Verified Purchase

5 .0

2024-12-23

Flawless DOM monitoring on these SFPs!

197 Helpful vote Comments

J***r

United States

Verified Purchase

5 .0

2024-11-02

Procurement bought a batch of 200 for our campus fiber upgrade. Excellent Cisco and Juniper interoperability. The 1310nm-TX/1550nm-RX pairing is incredibly stable, making it the ultimate budget-friendly MSA compliant transceiver for enterprise networks.

91 Helpful vote Comments