What specific laser classification does this long-range transmitter fall under for workplace safety?

This module is equipped with a Class 1 laser transmitter, making it completely eye-safe under all normal operating conditions.

We are setting up a point-to-point link; which specific matching part number do we need for the remote side?

You need to order the complementary 1490nm-TX/1550nm-RX 80km BiDi SFP module. This creates the matching bidirectional path needed to complete the link.

Does this SFP module support digital optical monitoring data visibility on unmanaged media converters?

No, unmanaged media converters lack the management software and processor needed to read DDM data. The module will still pass traffic perfectly, but you will not see live diagnostic readings.

We are doing a wholesale purchase for a metro project. Do you offer volume discounts for bulk orders?

We definitely do. Just drop us a message with your exact module count and the specific hardware compatibility requirements for your project, and we will put together a custom price break for you right away.

Our legacy industrial media converters use a 5V power supply; can this SFP accept that voltage?

No, this module complies with the standard SFP MSA electrical specification which requires a strict 3.3V power input.

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LINK-PP LS-BL554901-80C 155M SFP BiDi 1550nm-TX/1490nm-RX 80km Simplex LC DDM SMF Optical Transceiver Module

Name: LINK-PP LS-BL554901-80C 155M SFP BiDi 1550nm-TX/1490nm-RX 80km Simplex LC DDM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 205663
Price: 8.6 USD
Availability: InStock
Rating: 4.9 (23 reviews)

# 205663

Product: LINK-PP LS-BL554901-80C 155M SFP BiDi 1550nm-TX/1490nm-RX 80km Simplex LC DDM SMF Optical Transceiver Module
SKU: 205663
P/N: LS-BL554901-80C
Price: $ 10
Stock: 520 in Stock
Sold: 2.5K
Product URL: https://www.l-p.com/products/494045.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

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Manufacture: LINK-PP

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Compatible:: LINK-PP

Compatible P/N:: LS-BL315501-10C | 10km; LS-BL315501-10I | 10km; LS-BL553101-10C | 10km; LS-BL553101-10I | 10km; LS-BL315501-15C | 15km; LS-BL553101-15C | 15km; LS-BL315501-20C | 20km; LS-BL315501-20I | 20km; LS-BL553101-20C | 20km; LS-BL553101-20I | 20km; LS-BL315501-40C | 40km; LS-BL315501-40I | 40km; LS-BL553101-40C | 40km; LS-BL553101-40I | 40km; LS-BL315501-80C | 80km; LS-BL315501-80I | 80km; LS-BL495501-80C | 80km; LS-BL495501-80I | 80km; LS-BL553101-80C | 80km; LS-BL553101-80I | 80km; LS-BL554901-80C | 80km; LS-BL554901-80I | 80km

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LINK-PP LS-BL554901-80C 155M SFP Specifications

LS-BL554901-80C features a 155M BiDi SFP configuration for commercial environments, combining 1550nm-TX / 1490nm-RX wavelengths, an 80km transmission capability, and a hardware design that includes a DFB laser transmitter and PIN photodiode, with an operating temperature range of 0 to 70°C.

LINK-PP Part Number	LS-BL554901-80C	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	155Mbps
Wavelength	1550nm-TX/1490nm-RX	Max Cable Distance	80km
Connector	Simplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
TX Power	-5 to +2dBm	Receiver Sensitivity	-32dBm
RX Power	-32 to -6dBm	DOM Support	Yes
Operating Temperature Range	0 to 70°C	Protocols	Fast Ethernet, Gigabit Fibre Channel, MSA Compliant

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Q: What specific laser classification does this long-range transmitter fall under for workplace safety? By Z***w on 2026-04-08

A: This module is equipped with a Class 1 laser transmitter, making it completely eye-safe under all normal operating conditions. By admin on 2026-04-09
Q: We are setting up a point-to-point link; which specific matching part number do we need for the remote side? By H***y on 2026-02-03

A: You need to order the complementary 1490nm-TX/1550nm-RX 80km BiDi SFP module. This creates the matching bidirectional path needed to complete the link. By admin on 2026-02-04
Q: Does this SFP module support digital optical monitoring data visibility on unmanaged media converters? By L***n on 2025-11-26

A: No, unmanaged media converters lack the management software and processor needed to read DDM data. The module will still pass traffic perfectly, but you will not see live diagnostic readings. By admin on 2025-11-27
Q: We are doing a wholesale purchase for a metro project. Do you offer volume discounts for bulk orders? By G***g on 2025-06-13

A: We definitely do. Just drop us a message with your exact module count and the specific hardware compatibility requirements for your project, and we will put together a custom price break for you right away. By admin on 2025-06-14
Q: Our legacy industrial media converters use a 5V power supply; can this SFP accept that voltage? By B***e on 2025-01-19

A: No, this module complies with the standard SFP MSA electrical specification which requires a strict 3.3V power input. By admin on 2025-01-20

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H***r

Russian Federation

Verified Purchase

5 .0

2026-05-03

Clean optics, zero CRC errors. Swapped out some old dual-fiber SFP modules for these 155M BiDi SFP transceivers. Our error counters have been flat at zero since installation. Very happy customer.

53 Helpful vote Comments

G***r

Turkey

Verified Purchase

5 .0

2026-04-18

Simplex LC convenience. Cut our patch cord clutter in half inside the main distribution frame.

88 Helpful vote Comments

C***n

Nepal

Verified Purchase

5 .0

2026-03-27

Flawless performance. Using these for years across different projects, the LS-BL554901-80C SFP module remains my go-to for long-range 155M requirements.

95 Helpful vote Comments

C***y

New Zealand

Verified Purchase

5 .0

2026-03-02

Solid 1550/1490 setup. LINK-PP optical modules always rock. Saved us a ton of fiber strands in our metro links.

74 Helpful vote Comments

T***n

Philippines

Verified Purchase

5 .0

2026-02-11

Smooth provisioning. Upgraded our edge aggregation switches. The 155M SFP BiDi transceiver paired up instantly with its 1490nm-TX/1550nm-RX matching pair on the other end.

94 Helpful vote Comments

S***d

Malaysia

Verified Purchase

5 .0

2026-01-29

Excellent receiver sensitivity on high-attenuation fiber paths! We installed this BiDi SFP optical module on an older single-mode fiber run with high cumulative attenuation and numerous field splices along a 62km path. The high-sensitivity receiver locks onto the 1490nm signal effortlessly, and our bit error rate testing reported zero defects over a continuous 24-hour test period, proving the overall quality of the hardware.

120 Helpful vote Comments

V***s

Singapore

Verified Purchase

5 .0

2026-01-09

Saved our fiber budget! We needed to upgrade a link between two enterprise offices 65km apart. Using a BiDi SFP optical transceiver meant we only used one fiber strand instead of two. Saved us a fortune on leasing costs.

79 Helpful vote Comments

M***k

Macao

Verified Purchase

4 .0

2026-01-05

Outstanding quality, slight transit delay. These 155M BiDi SFP modules are exactly what we needed for our campus network extension. Docked one star because the shipment was delayed at the regional hub for two days. Hardware-wise, it's a solid buy.

19 Helpful vote Comments

E***r

United States

Verified Purchase

5 .0

2025-12-14

Good Tx Power Margin. Optical power budget is wide enough to tolerate a couple of patch panel splices along the 75km run.

99 Helpful vote Comments

J***l

Maldives

Verified Purchase

4 .0

2025-11-24

Excellent product, held up at customs for days. The optics themselves are top-tier and the DDM readings are incredibly accurate. The only downside was the package getting stuck in local customs for almost three days, which delayed our scheduled network deployment.

26 Helpful vote Comments

A***n

Ukraine

Verified Purchase

5 .0

2025-11-07

Best budget BiDi SFP optics. Running 24/7 for 3 weeks now, no drops.

63 Helpful vote Comments

D***d

Romania

Verified Purchase

5 .0

2025-10-19

Stable in indoor rack environments. Installed 50 of these 155M SFP modules in our climate-controlled server room. Temperature stays around 35°C on the module, well within the commercial 0-70°C operating range.

84 Helpful vote Comments

E***g

Netherlands

Verified Purchase

5 .0

2025-09-11

Reliable wavelength separation for Fast Ethernet ring upgrades! Our municipal utility network requires stable 155Mbps optical modules for regional telemetry rings, and this 1550nm-TX/1490nm-RX 80km SFP transceiver fits perfectly. The MSA compliance ensures smooth interoperability with older multi-vendor hardware, while the thermal engineering keeps the module casing cool even during peak traffic periods in unvented indoor enclosures.

148 Helpful vote Comments

H***e

United Arab Emirates

Verified Purchase

5 .0

2025-08-14

Used these 155M BiDi SFP modules for our campus network extension. Hit the full distance, no problem!

87 Helpful vote Comments

C***t

Sweden

Verified Purchase

5 .0

2025-08-04

Real-time DDM is a lifesaver. The Digital Diagnostics Monitoring on these is super accurate. Rx power levels are well within the margin even at 70km. Makes remote troubleshooting a breeze.

139 Helpful vote Comments

E***r

Bangladesh

Verified Purchase

5 .0

2025-07-25

Zero packet loss over long haul. Tested on a dark fiber spool before field deployment. The 1550nm laser pushes through the 80km attenuation easily.

137 Helpful vote Comments

L***y

Mexico

Verified Purchase

5 .0

2025-06-03

Cost-Effective Fiber Optimization for Rural Core Extensions! Upgrading our rural links to this single-mode BiDi SFP optical transceiver immediately saved our enterprise significant infrastructure costs by halving our fiber strand requirements. The high optical budget easily overcomes multiple patch panels and aging fusion splices across a 65km run, showing great stability with zero auto-negotiation or link flap issues.

101 Helpful vote Comments

S***d

Thailand

Verified Purchase

5 .0

2025-05-29

Zero jitter. Ideal for our remote IP camera backhaul over long-range single-mode fiber.

115 Helpful vote Comments

R***n

Poland

Verified Purchase

5 .0

2025-04-27

Best bang for the buck. Finding reliable 80km single-mode optical transceivers at this price point is tough. LINK-PP nailed it with this Fast Ethernet SFP module.

112 Helpful vote Comments

J***m

Morocco

Verified Purchase

4 .0

2025-03-21

Shipping delay due to regional weather. The hardware is solid and the metal casing feels premium. Unfortunately, a major storm caused shipping delays, so our batch arrived 4 days late. The customer service team was responsive, but the wait was stressful for our field technicians.

34 Helpful vote Comments

I***r

Germany

Verified Purchase

5 .0

2025-03-15

Fast delivery to Germany. Well packaged, pristine condition, works exactly as spec'd.

41 Helpful vote Comments

X***n

Norway

Verified Purchase

5 .0

2025-02-08

High-Performance Single-Core Solution for Long-Haul Backhauls! This 155M SFP BiDi optical module delivers exceptional performance on our 70km single-mode fiber infrastructure. The hot-pluggable design allows for seamless integration into our existing aggregation nodes, while the built-in DDM interface provides highly accurate real-time diagnostics for Tx power and Rx sensitivity, maintaining zero frame loss over a 72-hour continuous stress test.

132 Helpful vote Comments

N***s

South Africa

Verified Purchase

5 .0

2025-01-22

80km range is legit. Verified on our OTDR. Zero frame loss on this single-mode BiDi SFP transceiver.

102 Helpful vote Comments