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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FS SFP-100ELX-31 Compatible LINK-PP 155M SFP 1310nm 20km Duplex LC DOM SMF Optical Transceiver Module

Name: FS SFP-100ELX-31 Compatible LINK-PP 155M SFP 1310nm 20km Duplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 215422
Price: 5.762 USD
Availability: InStock
Rating: 4.7 (9 reviews)

# 215422

Product: FS SFP-100ELX-31 Compatible LINK-PP 155M SFP 1310nm 20km Duplex LC DOM SMF Optical Transceiver Module
SKU: 215422
P/N: LS-SM3101-20C
Price: $ 6.7
Stock: 650 in Stock
Sold: 641
Product URL: https://www.l-p.com/products/493948.htm

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

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9 Reviews

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Manufacture: LINK-PP

P/N: LS-SM3101-20C

Compatible:: LINK-PP; FS; H3C

Compatible P/N:: SFP-100LX-31 | 10km; SFP-100eLX-31 | 15km; SFP-100ELX-31 | 20km

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FS SFP-100ELX-31 Compatible LINK-PP 155M SFP Specifications

SFP-100ELX-31 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.

FS Part Number	SFP-100ELX-31	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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G***n

France

Verified Purchase

4 .0

2026-03-22

Had a minor delay getting our customs clearance paperwork processed for Europe, but your sale team sorted it out. The SFP modules themselves are top-tier and fully compatible.

22 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

O***h

United States

Verified Purchase

4 .0

2026-01-19

FedEx took their time delivering to our data center in Texas, but the product itself is top-tier. These commercial 0-70°C SFP modules run incredibly stable under heavy traffic loads.

28 Helpful vote Comments

H***g

Brazil

Verified Purchase

5 .0

2025-12-27

It's getting harder to find quality commercial-grade 155M SFP optical modules that don't throw error codes. LINK-PP nailed the firmware on these. Running cool at 32°C in our central rack.

41 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

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