What is the maximum physical distance this 155M single-mode SFP module can reliably support?

It is engineered to maintain a clean link budget over single-mode fiber spans up to 20km.

Will this commercial-grade SFP module overheat if deployed in a fully loaded, high-density top-of-rack switch?

No, it features low power dissipation properties, ensuring it stays well within thermal limits under full continuous traffic loads.

Does this 100BASE-LX SFP transceiver comply with the SFF-8472 standard for Digital Optical Monitoring?

Yes, it features full SFF-8472 compliance, giving you real-time access to critical operating metrics.

Do these 155M SFP modules come with a warranty for enterprise deployments?

Yes, all our commercial-grade optical transceivers are backed by a comprehensive 1-3 years of hardware warranty.

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H3C SFP-FE-LX20-SM1310-D Compatible LINK-PP 155M SFP 1310nm 20km Duplex LC DOM SMF Optical Transceiver Module

Name: H3C SFP-FE-LX20-SM1310-D Compatible LINK-PP 155M SFP 1310nm 20km Duplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 215423
Price: 5.762 USD
Availability: InStock
Rating: 4.9 (10 reviews)

# 215423

Product: H3C SFP-FE-LX20-SM1310-D Compatible LINK-PP 155M SFP 1310nm 20km Duplex LC DOM SMF Optical Transceiver Module
SKU: 215423
P/N: LS-SM3101-20C
Price: $ 6.7
Stock: 673 in Stock
Sold: 488
Product URL: https://www.l-p.com/products/493947.htm

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

For Order Over $3000 Get $50.00 Off , Code: Linkpp50

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Manufacture: LINK-PP

P/N: LS-SM3101-20C

Compatible:: LINK-PP; FS; H3C

Compatible P/N:: SFP-FE-LX-SM1310-D | 10km; SFP-GE/FE-LX10-SM1310 | 10km; SFP-FE-LX-SM1310-A | 15km; SFP-FE-LX20-SM1310-D | 20km; JD090A | 40km; SFP-FE-LH40-SM1310 | 40km; SFP-FE-LH80-SM1550 | 80km

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H3C SFP-FE-LX20-SM1310-D Compatible LINK-PP 155M SFP Specifications

SFP-FE-LX20-SM1310-D constitutes a sophisticated 155M SFP single-mode optical transceiver, leveraging the precise synergy of a 1310nm FP laser and a PIN photodetector to facilitate 20km transmission reach while maintaining operational consistency across a 0°C to 70°C temperature spectrum.

H3C Part Number	SFP-FE-LX20-SM1310-D	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	155Mbps
Wavelength	1310nm	Max Cable Distance	20km
Connector	Duplex LC	Media	SMF
Transmitter Type	FP	Receiver Type	PIN
TX Power	-14 to -8dBm	RX Power	-32 to -6dBm
Receiver Sensitivity	-32dBm	DOM Support	Yes
Operating Temperature Range	0 to 70°C	Protocols	IEEE802.3ab, GR-468, MSA Compliant

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Q: What is the maximum physical distance this 155M single-mode SFP module can reliably support? By F***n on 2026-02-22

A: It is engineered to maintain a clean link budget over single-mode fiber spans up to 20km. By admin on 2026-02-23
Q: Will this commercial-grade SFP module overheat if deployed in a fully loaded, high-density top-of-rack switch? By C***w on 2026-01-18

A: No, it features low power dissipation properties, ensuring it stays well within thermal limits under full continuous traffic loads. By admin on 2026-01-19
Q: Does this 100BASE-LX SFP transceiver comply with the SFF-8472 standard for Digital Optical Monitoring? By G***y on 2025-12-30

A: Yes, it features full SFF-8472 compliance, giving you real-time access to critical operating metrics. By admin on 2025-12-31
Q: Do these 155M SFP modules come with a warranty for enterprise deployments? By J***n on 2025-12-05

A: Yes, all our commercial-grade optical transceivers are backed by a comprehensive 1-3 years of hardware warranty. By admin on 2025-12-06

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M***h

Spain

Verified Purchase

5 .0

2026-03-01

Our campus network features several 12-17km single-mode fiber runs connecting peripheral security checkpoints back to the core. These 1310nm 20km SFP transceivers are perfect for this exact distance window. The PIN receiver handles the signal beautifully without requiring inline optical attenuators, yet there's enough margin to survive minor macrobends in the fiber path. For any network engineer putting together a low-bandwidth, long-distance link, this module is an incredibly dependable asset.

104 Helpful vote Comments

B***y

France

Verified Purchase

5 .0

2026-02-18

We buy these in bulk for rural broadband access nodes. The 20km transmission distance gives us plenty of optical budget headroom over standard single-mode fiber. Will order again.

32 Helpful vote Comments

J***g

Australia

Verified Purchase

5 .0

2026-02-09

If you are managing a large-scale municipal network deployment, these are a no-brainer. Much more cost-effective than buying branded original modules, and the spec sheets are fully compliant.

39 Helpful vote Comments

P***n

Sweden

Verified Purchase

5 .0

2025-12-14

Best budget Fast Ethernet SFP module. Exactly what we needed for our perimeter IP camera backhaul.

43 Helpful vote Comments

D***n

Japan

Verified Purchase

5 .0

2025-11-29

Bought a 100-pack for an enterprise building-to-building fiber patch project. Excellent build quality on the duplex LC interface. Latency is non-existent.

25 Helpful vote Comments

L***n

India

Verified Purchase

4 .0

2025-11-11

The transceivers perform flawlessly on our single-mode fiber runs, but the printed model numbers on the stickers are tiny and hard to read in dim rack lighting. Packaged safely though.

18 Helpful vote Comments

A***r

United States

Verified Purchase

5 .0

2025-10-28

Always a bit skeptical trying new optical transceivers on older enterprise gear, but these LS-SM3101-20C 155M SFP modules are fantastic. Working flawlessly alongside some OEM hardware in our server room.

65 Helpful vote Comments

I***n

Canada

Verified Purchase

5 .0

2025-10-04

Finding reliable 155M SFP modules with accurate Digital Optical Monitoring for legacy STM-1/OC-3 transport links can be a headache. These modules have completely stabilized our telco backhaul loops. The receiver sensitivity is excellent, easily managing the attenuation on our older 15km single-mode fiber lines. We've seen a noticeable drop in interface flapping since swapping out our old degraded optics for these fresh LINK-PP units. Absolute lifesaver for maintaining older telecom infrastructure.

95 Helpful vote Comments

K***t

United States

Verified Purchase

5 .0

2025-08-30

Zero issues. The DOM metrics on these 1310nm SFP modules match our fluke testers perfectly. Fast shipping to Chicago!

27 Helpful vote Comments

C***n

Germany

Verified Purchase

5 .0

2025-08-07

We recently overhauled a city-wide surveillance network requiring over 120 legacy Fast Ethernet fiber links across various nodes. We standardized on the LINK-PP LS-SM3101-20C 155M SFP module due to its strict compliance with the SFP MSA. Operating over 9-micron single-mode fiber, the 1310nm wavelength holds a stable optical budget even through multiple patch panels. The integrated DOM telemetry is a massive plus for our field techs, allowing us to monitor Tx/Rx power levels, temperature, and supply voltage remotely via SNMP. Excellent product for long-range infrastructure.

129 Helpful vote Comments