Why is the LINK-PP LS-BL49551G-10C such a great choice?

It packs 1.25 Gbps speed, 10 km range, single-fiber BiDi efficiency, and DOM monitoring into a compact module.

What kind of connector does it use?

It uses a simplex LC connector, a simple, space-saving design that makes installation easy.

Up to 10 km over single-mode fiber. Actual distance depends on your link budget and setup conditions.

Where does it work best?

In Gigabit Ethernet, 1.063 Gbps Fibre Channel, and other 1.25G optical link where saving fiber and simplifying cabling really matter.

Can this module be used with standard OS2 single-mode fiber, and will it reach the full 10 km distance?

Yes. The module is designed for single-mode fiber and fully supports standard OS2 fiber. Under normal optical link conditions and within the specified power budget, it can reliably achieve transmission distances of up to 10 km.

Is there an industrial-temperature version available for outdoor cabinets or factory automation environments?

Yes. In addition to the commercial-temperature version, LINK-PP also offers industrial-grade optical transceivers for harsh environments. If your project requires operation from -40°C to +85°C, please contact us and we'll recommend the appropriate industrial model.

Does this BiDi transceiver support standard Gigabit Ethernet protocols and DOM monitoring for long-term network maintenance?

Yes. The module complies with IEEE Gigabit Ethernet and MSA specifications while supporting Digital Optical Monitoring (DOM/DDM). Real-time monitoring of transmit power, receive power, temperature, voltage, and laser bias current helps simplify troubleshooting and preventive maintenance in enterprise and carrier networks.

We're planning to purchase more than 200 units for a campus fiber deployment. Do you offer volume discounts or OEM customization?

Absolutely. We support bulk purchasing with project pricing, OEM/ODM services, custom labels, EEPROM coding, and private branding. Simply send us your required quantity and device list, and our sales team will prepare a customized quotation.

Has anyone tested this BiDi SFP with Cisco, Huawei, MikroTik, or Ubiquiti switches? Does it work without compatibility issues?

Yes. The LS-BL49551G-10C is manufactured in accordance with MSA standards and supports OEM-compatible coding. It has been successfully deployed with Cisco, Huawei, MikroTik, Ubiquiti, H3C, and many other compatible network platforms. If you're unsure about your switch model, feel free to contact us before ordering for compatibility verification.

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LINK-PP LS-BL49551G-10C 1.25G BiDi SFP 1490nm-TX/1550nm-RX 10km DOM LC SMF Optical Transceiver Module

Name: LINK-PP LS-BL49551G-10C 1.25G BiDi SFP 1490nm-TX/1550nm-RX 10km DOM LC SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 203922
Price: 19.78 USD
Availability: InStock
Rating: 4.9 (27 reviews)

# 203922

Product: LINK-PP LS-BL49551G-10C 1.25G BiDi SFP 1490nm-TX/1550nm-RX 10km DOM LC SMF Optical Transceiver Module
SKU: 203922
P/N: LS-BL49551G-10C
Price: $ 23
Stock: 300 in Stock
Sold: 2.7K
Product URL: https://www.l-p.com/products/493368.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

27 Reviews

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$ 21.16

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Manufacture: LINK-PP

P/N: LS-BL49551G-10C

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-BL49551G-10C 1.25G BiDi SFP Specifications

The LINK-PP LS-BL49551G-10C is a 1.25G BiDi SFP optical transceiver offering dependable performance at data rates of up to 1.25 Gbps over single-mode fiber (SMF) with transmission distances of up to 10 km. Its transmit wavelength of 1490 nm and receive wavelength of 1550 nm allow for efficient bidirectional transmission on a single fiber through a simplex LC interface.

LINK-PP Part Number	LS-BL49551G-10C	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1490nm-TX/1550nm-RX	Max Cable Distance	10km
Connector	Simplex LC	Optical Components	DFP BiDi
Media	SMF	DOM Support	Yes
TX Power	-9 to 0dBm	RX Power	-23 to -1dBm
Receiver Sensitivity	-23dBm	Receiver Overload	-1dBm
Operating case temperature	0 to 70°C	Protocols	Fast Ethernet, Gigabit Fibre Channel, MSA Compliant

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Q: Can this module be used with standard OS2 single-mode fiber, and will it reach the full 10 km distance? By I***n on 2026-05-10

A: Yes. The module is designed for single-mode fiber and fully supports standard OS2 fiber. Under normal optical link conditions and within the specified power budget, it can reliably achieve transmission distances of up to 10 km. By admin on 2026-05-11
Q: Is there an industrial-temperature version available for outdoor cabinets or factory automation environments? By A***n on 2026-02-11

A: Yes. In addition to the commercial-temperature version, LINK-PP also offers industrial-grade optical transceivers for harsh environments. If your project requires operation from -40°C to +85°C, please contact us and we'll recommend the appropriate industrial model. By admin on 2026-02-11
Q: Does this BiDi transceiver support standard Gigabit Ethernet protocols and DOM monitoring for long-term network maintenance? By K***n on 2025-09-07

A: Yes. The module complies with IEEE Gigabit Ethernet and MSA specifications while supporting Digital Optical Monitoring (DOM/DDM). Real-time monitoring of transmit power, receive power, temperature, voltage, and laser bias current helps simplify troubleshooting and preventive maintenance in enterprise and carrier networks. By admin on 2025-09-07
Q: We're planning to purchase more than 200 units for a campus fiber deployment. Do you offer volume discounts or OEM customization? By S***s on 2025-05-01

A: Absolutely. We support bulk purchasing with project pricing, OEM/ODM services, custom labels, EEPROM coding, and private branding. Simply send us your required quantity and device list, and our sales team will prepare a customized quotation. By admin on 2025-05-02
Q: Has anyone tested this BiDi SFP with Cisco, Huawei, MikroTik, or Ubiquiti switches? Does it work without compatibility issues? By A***z on 2024-03-05

A: Yes. The LS-BL49551G-10C is manufactured in accordance with MSA standards and supports OEM-compatible coding. It has been successfully deployed with Cisco, Huawei, MikroTik, Ubiquiti, H3C, and many other compatible network platforms. If you're unsure about your switch model, feel free to contact us before ordering for compatibility verification. By admin on 2024-03-05

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Aaron Jones

Japan

Verified Purchase

5 .0

2026-04-19

Installed one pair for my home server rack and 10G NAS uplink. Reusing a single fiber strand was exactly what I needed, and the connection has remained rock solid for months. (^.^)

67 Helpful vote Comments

Gary Sanchez

Belarus

Verified Purchase

5 .0

2026-03-29

Our system integrator recommended these for an industrial automation project. The modules have been operating around the clock, and we've experienced zero packet loss or unexpected link resets. (★‿★)

79 Helpful vote Comments

Brandon King

Thailand

Verified Purchase

5 .0

2026-03-07

Great choice for enterprise deployments. DOM monitoring provides accurate TX/RX optical power, making preventive maintenance much easier. (•‿<)

46 Helpful vote Comments

Madison Morgan

Norway

Verified Purchase

5 .0

2026-02-19

Used for a small ISP aggregation project where fiber resources were limited. The BiDi design allowed us to double fiber utilization while maintaining stable Gigabit connectivity across the entire network. (•ᴗ•)

49 Helpful vote Comments

Thomas Campbell

Argentina

Verified Purchase

5 .0

2026-01-11

For anyone looking for a Gigabit BiDi SFP supporting DOM, single-mode fiber, and OEM compatibility, this module offers excellent performance at a much lower cost than original branded optics. (◕‿◕)

71 Helpful vote Comments

Charles Roberts

United Kingdom

Verified Purchase

5 .0

2025-12-28

After several months of continuous operation in both indoor equipment rooms and outdoor cabinets, these modules continue to perform flawlessly. We'll definitely use them again for future fiber expansion projects. \(^_^)

78 Helpful vote Comments

Lily Lee

Spain

Verified Purchase

5 .0

2025-12-16

Excellent optical performance over the full 10km distance. The transmitter power and receiver sensitivity matched the datasheet closely during our acceptance testing. (•ω•)

13 Helpful vote Comments

Lucy Baker

Hungary

Verified Purchase

5 .0

2025-12-06

Excellent OEM compatible SFP module. Works perfectly with Cisco equipment and several third-party switches we've tested. :)

69 Helpful vote Comments

Stephen Allen

Sweden

Verified Purchase

5 .0

2025-11-28

Highly recommended! ^^

2 Helpful vote Comments

Thomas Hernandez

Austria

Verified Purchase

5 .0

2025-11-15

Installed this BiDi SFP in our campus network using a single strand of single-mode fiber. The link came up immediately, and the DOM readings have remained stable since installation. Very happy with the performance. :)

31 Helpful vote Comments

Ryan White

Lithuania

Verified Purchase

5 .0

2025-11-12

Very reliable. :D

22 Helpful vote Comments

Elizabeth Martin

Belgium

Verified Purchase

5 .0

2025-09-22

Great value for money.

46 Helpful vote Comments

Rebecca Adams

South Africa

Verified Purchase

5 .0

2025-07-31

Stable connection every day.

42 Helpful vote Comments

Abigail Rodriguez

Denmark

Verified Purchase

5 .0

2025-06-22

Plug and play.

16 Helpful vote Comments

John Carter

Maldives

Verified Purchase

5 .0

2025-06-05

We deployed over thirty units during a campus backbone expansion. Every module passed acceptance testing, DOM values were accurate, and no compatibility alarms appeared during deployment. Definitely ordering more. (•◡•)

63 Helpful vote Comments

Jeffrey Lewis

Indonesia

Verified Purchase

5 .0

2025-04-29

We've been replacing expensive OEM optics with this compatible module across several access switches. Every unit was recognized instantly and has been running without a single disconnect. (＾▽＾)

94 Helpful vote Comments

Olivia Ramirez

Republic of Korea

Verified Purchase

5 .0

2025-03-13

The 1490nm TX / 1550nm RX wavelength pair matched our existing deployment perfectly. Using BiDi optics allowed us to reuse existing fiber instead of installing additional cables. (^_^)b

71 Helpful vote Comments

Joshua Ramirez

Lithuania

Verified Purchase

5 .0

2025-01-08

We've tested these modules with Cisco, H3C, MikroTik and Ubiquiti equipment. Every switch recognized the transceiver immediately without requiring firmware modifications. \(^o^)/

32 Helpful vote Comments

Nathan Garcia

Iran, Islamic Republic of

Verified Purchase

5 .0

2024-11-12

This module saved us a significant amount compared with branded optics. Installation was effortless, and interoperability with our existing BiDi transceivers has been excellent. (ง •̀_•́)ง

59 Helpful vote Comments

Abigail Martin

Sweden

Verified Purchase

5 .0

2024-11-02

Works flawlessly. :)

13 Helpful vote Comments

Matthew Parker

France

Verified Purchase

5 .0

2024-10-09

Installed in a remote outdoor communication cabinet. The industrial operating temperature gives us confidence, and the module has been stable through both hot afternoons and cold mornings. (☞ﾟヮﾟ)☞

64 Helpful vote Comments

Andrew Scott

Morocco

Verified Purchase

4 .0

2024-09-27

Packaging could have been a little better, although every module arrived safely. Performance has been completely reliable, so no complaints about the product itself. :]

9 Helpful vote Comments

FirstNames Walker

Canada

Verified Purchase

5 .0

2024-09-14

Exactly what we needed for our fiber upgrade.

34 Helpful vote Comments

James Evans

Israel

Verified Purchase

4 .0

2024-07-22

Shipping was a little slower than expected, but the transceiver itself works perfectly. Optical power is within specification and compatibility has been excellent. :P

78 Helpful vote Comments

Michael Taylor

Spain

Verified Purchase

5 .0

2024-06-26

One of the best compatible BiDi optical transceivers we've purchased recently. Build quality feels solid, diagnostics are accurate, and deployment across multiple switch brands was completely trouble-free. (≧▽≦)

45 Helpful vote Comments

Anna Martinez

Denmark

Verified Purchase

5 .0

2024-03-25

Running continuously on a 10km single-mode fiber connection between two office buildings. Throughput has remained consistent, latency is low, and the LC connector fits securely without any issues. (¬‿¬)

53 Helpful vote Comments

Jack Taylor

Republic of Korea

Verified Purchase

5 .0

2024-01-06

Excellent BiDi module.

64 Helpful vote Comments