Is this transceiver compliant with IEEE standards? We need it for a strict government contract build-out.

Yes, it is fully compliant with Fast Ethernet, Gigabit Ethernet, and Gigabit Fibre Channel protocols, as well as the strict SFF-8472 standard for digital diagnostics. It securely meets all major industry networking benchmarks and compliance standards.

We're installing these in ruggedized outdoor cabinets in a desert environment. Can the optics really handle extreme heat?

Definitely! This is a true industrial-grade module built with a premium DFB laser. It is strictly rated for wide operating temperatures from -40°C all the way up to 85°C, ensuring zero link drops even in severe outdoor conditions.

Will this 1G BiDi SFP play nice with our existing mixed Cisco and Juniper rack? We're tired of vendor lock-in.

Absolutely! This module is fully MSA compliant and extensively tested for OEM compatibility across major switch brands, ensuring plug-and-play interoperability without triggering "unsupported transceiver" errors.

Can I use this with our legacy multimode fiber, or is it strictly for single-mode fiber links?

This specific module is optimized exclusively for Single-Mode Fiber (SMF) via a Simplex LC interface to achieve that massive 100km distance safely. It will not function correctly over legacy multimode fiber.

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LINK-PP LS-BL55491G-A0I 1G BiDi SFP 1550nm-TX/1490nm-RX 100km DOM Simplex LC SMF Optical Transceiver Module (Industrial)

Name: LINK-PP LS-BL55491G-A0I 1G BiDi SFP 1550nm-TX/1490nm-RX 100km DOM Simplex LC SMF Optical Transceiver Module (Industrial)
Brand: LINK-PP
SKU: 184889
Price: 24.166 USD
Availability: InStock
Rating: 5 (22 reviews)

# 184889

Product: LINK-PP LS-BL55491G-A0I 1G BiDi SFP 1550nm-TX/1490nm-RX 100km DOM Simplex LC SMF Optical Transceiver Module (Industrial)
SKU: 184889
P/N: LS-BL55491G-A0I
Price: $ 28.1
Stock: 450 in Stock
Sold: 850
Product URL: https://www.l-p.com/products/481819.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

22 Reviews

4 Questions

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$ 26.695

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$ 25.852

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Manufacture: LINK-PP

P/N: LS-BL55491G-A0I

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-BL55491G-A0I 1G BiDi SFP Specifications

The LINK-PP LS-BL55491G-A0I is an advanced high-performance 1.25Gbps 1G BiDi SFP transceiver perfectly engineered for harsh environments. It precisely features a 1550nm-TX/1490nm-RX wavelength over single-mode fiber, effectively achieving distances up to 100km. This industrial-grade optical module ensures highly reliable gigabit ethernet connections with its simplex LC interface and real-time digital diagnostic monitoring.

LINK-PP Part Number	LS-BL55491G-A0I	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1550nm-TX/1490nm-RX	Max Cable Distance	100km
Connector	Simplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
TX Power	0 to +5dBm	RX Power	-28 to -1dBm
Receiver Sensitivity	<-28dBm	DOM Support	Yes
Operating Temperature Range	-40 to 85°C	Protocols	Fast Ethernet, Gigabit Fibre Channel, MSA Compliant

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Q: Is this transceiver compliant with IEEE standards? We need it for a strict government contract build-out. By C***s on 2026-05-13

A: Yes, it is fully compliant with Fast Ethernet, Gigabit Ethernet, and Gigabit Fibre Channel protocols, as well as the strict SFF-8472 standard for digital diagnostics. It securely meets all major industry networking benchmarks and compliance standards. By admin on 2026-05-13
Q: We're installing these in ruggedized outdoor cabinets in a desert environment. Can the optics really handle extreme heat? By S***n on 2025-10-29

A: Definitely! This is a true industrial-grade module built with a premium DFB laser. It is strictly rated for wide operating temperatures from -40°C all the way up to 85°C, ensuring zero link drops even in severe outdoor conditions. By admin on 2025-10-29
Q: Will this 1G BiDi SFP play nice with our existing mixed Cisco and Juniper rack? We're tired of vendor lock-in. By M***n on 2025-10-23

A: Absolutely! This module is fully MSA compliant and extensively tested for OEM compatibility across major switch brands, ensuring plug-and-play interoperability without triggering "unsupported transceiver" errors. By admin on 2025-10-23
Q: Can I use this with our legacy multimode fiber, or is it strictly for single-mode fiber links? By K***z on 2025-10-20

A: This specific module is optimized exclusively for Single-Mode Fiber (SMF) via a Simplex LC interface to achieve that massive 100km distance safely. It will not function correctly over legacy multimode fiber. By admin on 2025-10-20

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M***e

Bolivia

Verified Purchase

5 .0

2026-06-27

Rigorously tested this 1550nm-TX/1490nm-RX industrial transceiver across our multi-brand switches. The DOM feedback is ultra-precise, and it easily pushed a stable 1.25Gbps over an 85km SMF run. Outstanding enterprise value.

178 Helpful vote Comments

B***l

Colombia

Verified Purchase

5 .0

2026-06-21

Need reliable base station backhaul? This 100km 1G BiDi SFP transceiver handles it effortlessly.

203 Helpful vote Comments

A***n

Italy

Verified Purchase

5 .0

2026-06-14

Flawless BiDi SFP for base station backhaul.

195 Helpful vote Comments

P***n

Canada

Verified Purchase

5 .0

2026-03-11

Single-mode fiber setup was a breeze with this Simplex LC BiDi module. Highly recommended!

78 Helpful vote Comments

J***l

Taiwan, Province of China

Verified Purchase

5 .0

2025-12-16

Survived a brutal summer in an outdoor cabinet without any link drops. Insane reliability. ☀️

163 Helpful vote Comments

T***n

Ecuador

Verified Purchase

5 .0

2025-11-24

Great price for a 1G BiDi SFP.

35 Helpful vote Comments

C***e

Mexico

Verified Purchase

5 .0

2025-10-29

Easy plug-and-play for campus fiber networking.

211 Helpful vote Comments

D***z

Argentina

Verified Purchase

5 .0

2025-09-10

Cost-effective 1G BiDi SFP 100km solution that doesn't compromise on DFB laser quality.

34 Helpful vote Comments

C***n

Czech Republic

Verified Purchase

5 .0

2025-09-09

Deployed these industrial optical transceivers in our factory; the wide temp rating is legit!

89 Helpful vote Comments

P***s

Mexico

Verified Purchase

5 .0

2025-09-09

Used these for our remote campus fiber networking project. The 100km max distance is incredibly accurate, and real-time DOM ensures our IT ops catch signal degradation instantly. Excellent networking ROI.

210 Helpful vote Comments

E***n

Malaysia

Verified Purchase

5 .0

2025-08-13

DFB laser stays stable under heavy loads. ⚡

23 Helpful vote Comments

L***z

Belgium

Verified Purchase

5 .0

2025-07-27

The real-time DOM monitoring saved us during a massive campus fiber networking upgrade.

58 Helpful vote Comments

J***n

Ukraine

Verified Purchase

4 .0

2025-07-12

Box arrived a bit crushed, but the 1G BiDi SFP module works flawlessly.

98 Helpful vote Comments

J***n

Dominican Republic

Verified Purchase

5 .0

2025-04-26

Fast delivery and perfect 1G SMF connectivity.

101 Helpful vote Comments

S***s

Ireland

Verified Purchase

5 .0

2025-03-31

Best Simplex LC DOM module I've used.

145 Helpful vote Comments

J***n

India

Verified Purchase

5 .0

2025-01-26

DOM works great on my Cisco switch.

84 Helpful vote Comments

C***n

Brazil

Verified Purchase

5 .0

2025-01-24

We run several ruggedized outdoor cabinets in Alaska. Finding an industrial optical transceiver that genuinely tolerates -40°C while maintaining stable 1G BiDi SFP 100km performance was tough until we found this.

131 Helpful vote Comments

L***z

Norway

Verified Purchase

5 .0

2025-01-18

Solid 100km transmission for our outdoor cabinet!

62 Helpful vote Comments

D***n

Spain

Verified Purchase

5 .0

2024-12-02

Ordered a bulk batch for our data center; zero compatibility issues with our switches.

127 Helpful vote Comments

E***z

Czech Republic

Verified Purchase

5 .0

2024-11-17

We utilized this Simplex LC DOM module for a massive DC bulk deployment. Replacing dual-fiber with this BiDi setup halved our fiber usage. Perfect DFB laser stability and zero OEM compatibility hiccups.

199 Helpful vote Comments

A***z

Brazil

Verified Purchase

5 .0

2024-10-07

Handles -40°C easily in winter deployments. ❄️

107 Helpful vote Comments

M***s

Germany

Verified Purchase

5 .0