Do we need to clean the optical ferrule if the SFP has been sitting in its sealed box with the dust cap on?

While the dust cap protects the module, we always recommend a quick click-pen clean before mating the simplex LC connector to prevent contamination.

Is the transmitter light completely safe for our on-site field technicians during installation?

Yes, the module is certified as a Class 1 laser product, making it completely eye-safe under all standard operating conditions.

Does this module use a DFB laser or a FP laser for the 1550nm transmission?

It utilizes a premium 1550nm Distributed Feedback (DFB) laser to ensure minimum spectral dispersion over the 80km reach.

Our legacy backhaul uses SDH STM-1 framing; does this LS-BL553101-80C 155M SFP transceiver support the required clock synchronization?

Yes, the physical layer design fully supports the strict timing and synchronization standards of STM-1/OC-3 SDH networks.

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LINK-PP LS-BL553101-80C 155M SFP BiDi 1550nm-TX/1310nm-RX 80km Simplex LC DDM SMF Optical Transceiver Module

Name: LINK-PP LS-BL553101-80C 155M SFP BiDi 1550nm-TX/1310nm-RX 80km Simplex LC DDM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 205661
Price: 8.6 USD
Availability: InStock
Rating: 4.9 (22 reviews)

# 205661

Product: LINK-PP LS-BL553101-80C 155M SFP BiDi 1550nm-TX/1310nm-RX 80km Simplex LC DDM SMF Optical Transceiver Module
SKU: 205661
P/N: LS-BL553101-80C
Price: $ 10
Stock: 360 in Stock
Sold: 1.9K
Product URL: https://www.l-p.com/products/494043.htm

For Order Over $1000 Get $15.00 Off , Code: Linkpp15

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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-BL553101-80C 155M SFP Specifications

LS-BL553101-80C is a commercial-grade 155M SFP BiDi optical transceiver module engineered with a 1550nm-TX/1310nm-RX wavelength split, a single DFB laser and PIN photo detector setup, and a simplex LC interface to achieve seamless 80km data transmission across an operating temperature spectrum of 0 to +70°C.

LINK-PP Part Number	LS-BL553101-80C	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	155Mbps
Wavelength	1550nm-TX/1310nm-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: Do we need to clean the optical ferrule if the SFP has been sitting in its sealed box with the dust cap on? By N***d on 2026-05-11

A: While the dust cap protects the module, we always recommend a quick click-pen clean before mating the simplex LC connector to prevent contamination. By admin on 2026-05-12
Q: Is the transmitter light completely safe for our on-site field technicians during installation? By D***s on 2026-03-14

A: Yes, the module is certified as a Class 1 laser product, making it completely eye-safe under all standard operating conditions. By admin on 2026-03-15
Q: Does this module use a DFB laser or a FP laser for the 1550nm transmission? By P***d on 2025-12-05

A: It utilizes a premium 1550nm Distributed Feedback (DFB) laser to ensure minimum spectral dispersion over the 80km reach. By admin on 2025-12-06
Q: Our legacy backhaul uses SDH STM-1 framing; does this LS-BL553101-80C 155M SFP transceiver support the required clock synchronization? By S***w on 2025-05-22

A: Yes, the physical layer design fully supports the strict timing and synchronization standards of STM-1/OC-3 SDH networks. By admin on 2025-05-23

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Z***n

Republic of Korea

Verified Purchase

5 .0

2026-05-12

Running cool in our rack at 40°C. Solid commercial-grade build quality.

88 Helpful vote Comments

R***d

Belarus

Verified Purchase

5 .0

2026-05-08

Before buying in bulk, our engineering team ran this 155M 80km SFP module through a comprehensive optical spectrum analyzer bench test. The 1550nm TX laser exhibits an incredibly narrow spectral width, which is key to preventing chromatic dispersion over long physical spans. The measured optical extinction ratio is excellent, ensuring high signal contrast and keeping our bit error rate below the strict threshold. The transceiver pulls very little current even at its maximum rated operating temperature, preventing localized heating inside dense switches. The physical build, latch mechanism, and optical path design are all top-tier.

97 Helpful vote Comments

M***k

Israel

Verified Purchase

5 .0

2026-04-05

These single-mode BiDi SFP transceivers are highly compatible. We did an on-site swap on an active metro Ethernet ring. The switch immediately read the serial number and programmed vendor info. Real-time diagnostic monitoring (DDM) helps our NOC team sleep at night.

105 Helpful vote Comments

M***n

Libyan Arab Jamahiriya

Verified Purchase

5 .0

2026-03-24

Simplex LC saves so much fiber patch cabling. Highly recommended for tight fiber trays!

78 Helpful vote Comments

A***n

Spain

Verified Purchase

5 .0

2026-03-17

In our utility monitoring network, maximizing existing physical assets is critical, which is why we transitioned to these simplex LC BiDi modules. Operating over a single SMF strand, this transceiver successfully eliminated the need to lease secondary fibers for our telemetry return paths. The internal digital diagnostics (DOM) show that even inside our outdoor trackside cabinets, the SFP case temperature runs remarkably cool. The 1550nm-TX distributed feedback laser outputs a highly stable optical signal that effortlessly bridges our remote substation nodes. It is an exceptionally built commercial-grade SFP that conforms to all relevant MSA signaling standards.

142 Helpful vote Comments

S***y

Italy

Verified Purchase

5 .0

2026-02-09

Using these BiDi SFP transceivers for a remote campus link spanning about 65km. Setting up a TX1550/RX1310 BiDi at one end and the counterpart at the other was straightforward. Signals are incredibly stable. DDM monitoring via CLI shows optical TX power within perfect spec range. Excellent budget-friendly alternative to Cisco original optics.

121 Helpful vote Comments

C***r

Hungary

Verified Purchase

5 .0

2026-01-14

Outstanding performance on our legacy OC-3 SONET equipment. Optical link up and running instantly. DDM telemetry matches our optical power meter readings exactly. For an 80km 155M SFP, you cannot beat this price.

69 Helpful vote Comments

J***g

United Kingdom

Verified Purchase

5 .0

2025-12-28

Exactly what we needed for our legacy STM-1 SDH ring migration.

64 Helpful vote Comments

H***n

Canada

Verified Purchase

4 .0

2025-12-03

Excellent optical parameters (1550nm-TX / 1310nm-RX) with clean signals over our 68km link. The delivery was delayed by two days because the courier routed it to the wrong local hub. Once it finally arrived, the installation was a breeze and the performance is a solid 5/5. Just wish local shipping was smoother.

30 Helpful vote Comments

P***r

France

Verified Purchase

5 .0

2025-11-06

We deployed these bidirectional SFP modules in our remote monitoring stations along the pipeline. Clean signal transmission over long-distance single-mode fiber patch cords. Low latency and solid thermal dissipation even when the rack heats up.

101 Helpful vote Comments

J***e

Denmark

Verified Purchase

5 .0

2025-10-27

We integrated these 155M SFP transceivers to support legacy STM-1 SDH add-drop multiplexers across a sprawling municipal WAN. The physical link immediately established a solid connection over our single-mode fiber backbone, showing no signs of optical jitter or frame slippage. Thanks to the high-sensitivity PIN receiver, the module handles minor path splices and patch panel attenuation with plenty of margin to spare. The hot-pluggable SFP form factor fits perfectly into standard cages, making active swaps completely seamless. It has proven to be an indispensable asset for keeping our legacy carrier circuits operating smoothly.

79 Helpful vote Comments

C***n

Lithuania

Verified Purchase

5 .0

2025-10-15

Long-reach BiDi optics at this price point? Unreal value. Will buy another batch next week.

50 Helpful vote Comments

E***d

Iran, Islamic Republic of

Verified Purchase

5 .0

2025-09-22

Perfect for our substation optical network. The LS-BL553101-80C modules paired nicely with our existing single-mode fiber infrastructure. Since we were low on available fiber strands, utilizing BiDi 1550nm-TX/1310nm-RX over a single LC connector literally saved us from having to pull new cables.

147 Helpful vote Comments

A***n

Indonesia

Verified Purchase

5 .0

2025-08-12

Solid commercial 80km transceiver. The physical build quality of the metal casing is great, fits snugly in standard SFP cages. Low power consumption is also a big plus for our dense high-port switch setups. Highly recommended for regional ISP loops!

139 Helpful vote Comments

L***d

Germany

Verified Purchase

5 .0

2025-07-21

Our infrastructure requires robust Fast Ethernet links to carry telemetry data from remote field sensors over 70km back to headquarters. Deploying these LS-BL553101-80C BiDi SFP modules allowed us to simplify our fiber patch panels by using a single simplex LC connector instead of duplex pairs. The metallic zinc-alloy housing offers excellent shielding against nearby high-voltage electromagnetic interference. Despite operating inside unventilated control cabinets, the SFP keeps its power consumption low and remains highly stable. We have experienced zero CRC errors or interface flapping since completing this network deployment.

158 Helpful vote Comments

D***n

Cambodia

Verified Purchase

5 .0

2025-07-04

No CRC errors, no packet drops. Just pure 155M Fast Ethernet stability. (^_~)

127 Helpful vote Comments

G***w

Finland

Verified Purchase

5 .0

2025-06-29

LINK-PP continues to dominate our white-label transceiver stock. These 155M BiDi 80km modules are fully compatible with our legacy devices. Real-time DOM reporting keeps us proactive on fiber degradation. Double thumbs up! d_('▽'o)

123 Helpful vote Comments

G***t

Morocco

Verified Purchase

5 .0

2025-06-17

80km reach is no joke, got clean signals over 74km dark fiber span. Absolute lifesaver!

106 Helpful vote Comments

O***l

India

Verified Purchase

5 .0

2025-05-29

Bought 50 units for an SDH/STM-1 link upgrade. Testing shows excellent receiver sensitivity which is critical for long-reach 80km spans. The DOM interface lets us monitor real-time Rx power directly from our monitoring system. Extremely satisfied! (•̀ᴗ•́)و

90 Helpful vote Comments

L***y

Brazil

Verified Purchase

4 .0

2025-04-18

Great price for an 80km SFP BiDi module and highly compatible with our legacy switches. My only issue is that the international shipping was 3 days later than expected because of a delay at the port of entry. If you are on a tight project deadline, make sure to order well in advance!

21 Helpful vote Comments

L***d

Japan

Verified Purchase

5 .0

2025-04-03

Simplex LC connection was tight and clicked in perfectly. No loose housings here!

78 Helpful vote Comments

W***m

Ireland

Verified Purchase

5 .0

2025-03-19

We have a lot of point-to-point simplex fiber runs. Utilizing these 155M BiDi SFP transceivers lets us double our capacity on existing single-mode fiber without digging trenches. Excellent laser stability at 1550nm TX. LINK-PP is now our go-to optical vendor.

142 Helpful vote Comments