What is the absolute operating temperature limits for this specific 155M SFP module?

The LS-SM3101-40I is a true industrial-grade optical transceiver module, rated to operate flawlessly from -40°C up to +85°C (-40°F to 185°F).

Will this 155M SFP optics transceiver function reliably in specialized SONET multiplexers running OC-3 framing?

Yes, it features a highly stable physical layer architecture fully compliant with both packet-based Fast Ethernet and synchronous SDH optical protocols.

Does this industrial version draw significantly more power than a standard commercial 155M SFP module?

No, it retains an optimized, low-power dissipation profile designed to prevent heat buildup inside sealed unconditioned enclosures.

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LINK-PP LS-SM3101-40I 155M SFP 1310nm 40km Duplex LC DOM SMF Optical Transceiver Module (Industrial)

Name: LINK-PP LS-SM3101-40I 155M SFP 1310nm 40km Duplex LC DOM SMF Optical Transceiver Module (Industrial)
Brand: LINK-PP
SKU: 183975
Price: 7.93 USD
Availability: InStock
Rating: 4.9 (15 reviews)

# 183975

Product: LINK-PP LS-SM3101-40I 155M SFP 1310nm 40km Duplex LC DOM SMF Optical Transceiver Module (Industrial)
SKU: 183975
P/N: LS-SM3101-40I
Price: $ 9.22
Stock: 913 in Stock
Sold: 890
Product URL: https://www.l-p.com/products/478908.htm

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Manufacture: LINK-PP

P/N: LS-SM3101-40I

Compatible:: LINK-PP

Compatible P/N:: LS-SM3101-10C | 10km; LS-SM3101-10I | 10km; LS-SM3101-15C | 15km; LS-SM3101-20C | 20km; LS-SM3101-20I | 20km; LS-SM3101-40C | 40km; LS-SM3101-40I | 40km; LS-SM5501-80C | 80km; LS-SM5501-80I | 80km; LS-SM5501-A2C | 120km; LS-SM5501-A2I | 120km

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LINK-PP LS-SM3101-40I 155M SFP Specifications

LS-SM3101-40I is an industrial-grade 155M SFP single-mode optical transceiver module that integrates a sophisticated 1310nm DFB laser and highly sensitive PIN photodetector to guarantee robust, zero-compromise signal integrity over a 40km span, purpose-built to sustain deterministic network links amidst severe thermal environments ranging from -40 to +85°C.

LINK-PP Part Number	LS-SM3101-40I	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	155Mbps
Wavelength	1310nm	Max Cable Distance	40km
Connector	Duplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
TX Power	-14 to -8dBm	RX Power	-32 to -6dBm
Receiver Sensitivity	-32dBm	DOM Support	Yes
Operating Temperature Range	-40 to +85°C	Protocols	GR-468, MSA Compliant

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Q: What is the absolute operating temperature limits for this specific 155M SFP module? By D***n on 2026-03-12

A: The LS-SM3101-40I is a true industrial-grade optical transceiver module, rated to operate flawlessly from -40°C up to +85°C (-40°F to 185°F). By admin on 2026-03-13
Q: Will this 155M SFP optics transceiver function reliably in specialized SONET multiplexers running OC-3 framing? By B***w on 2026-02-14

A: Yes, it features a highly stable physical layer architecture fully compliant with both packet-based Fast Ethernet and synchronous SDH optical protocols. By admin on 2026-02-15
Q: Does this industrial version draw significantly more power than a standard commercial 155M SFP module? By K***d on 2026-01-07

A: No, it retains an optimized, low-power dissipation profile designed to prevent heat buildup inside sealed unconditioned enclosures. By admin on 2026-01-08

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C***n

Poland

Verified Purchase

5 .0

2026-03-29

The digital optical monitoring tracks voltage and laser current metrics down to decimal precision. It makes troubleshooting long-haul fiber plants via SNMP a breeze for our remote ops center.

33 Helpful vote Comments

U***e

Austria

Verified Purchase

5 .0

2026-03-17

Precise DOM readings. Real-time Tx/Rx diagnostic monitoring telemetry streams perfectly to our centralized monitoring dashboard. (^_^)

62 Helpful vote Comments

R***g

Canada

Verified Purchase

5 .0

2026-02-28

Procured a batch of these 40km SMF transceivers for a wireless ISP tower backhaul expansion. They provide clean data paths over long single-mode fiber spans, ignoring the biting winter cold up in Alberta.

63 Helpful vote Comments

Z***n

Russian Federation

Verified Purchase

5 .0

2026-02-11

The bail latch mechanism on these feels heavy-duty. It locks firmly into high-vibration equipment environments, which is critical for our light rail communications infrastructure.

79 Helpful vote Comments

W***s

Portugal

Verified Purchase

5 .0

2026-01-27

Finding reliable, long-reach 155M SFP optics optimized for high-vibration railway trackside cabinets is increasingly difficult. These LINK-PP industrial-grade transceivers have completely stabilized our legacy signaling transport networks. The PIN receiver sensitivity handles the 35km spans beautifully without needing inline attenuators, while the rigid housing provides excellent resistance to the physical shocks of passing trains. A top-tier asset for keeping historical infrastructure completely stable and online.

89 Helpful vote Comments

E***n

Hungary

Verified Purchase

5 .0

2026-01-12

MSA compliance is spot on. Our legacy industrial switches accepted the LS-SM3101-40I without a single hitch.

36 Helpful vote Comments

X***n

Greece

Verified Purchase

5 .0

2025-12-08

Using these for a 35km campus link connecting a remote security checkpoint. The PIN receiver is sensitive enough to cope with minor aging on the older single-mode fiber paths without dropping packets.

74 Helpful vote Comments

B***n

Ukraine

Verified Purchase

5 .0

2025-11-23

In dense, sealed outdoor enclosures, heat is the ultimate hardware killer. These commercial-alternative industrial optics pull incredibly low current, keeping the thermal footprint of our edge switches in the green. The DOM monitoring metrics stream continuously into our mapping server via SNMP, letting us preemptively detect fiber degradation or dirty end-faces long before a link failure occurs. For long-distance industrial deployments, this SFP module is an absolute necessity.

117 Helpful vote Comments

T***d

Denmark

Verified Purchase

5 .0

2025-11-05

Deploying network hardware in coastal environments is brutal. These -40 to 85°C industrial SFP optics are highly resilient against extreme humidity and temperature swings in our enclosure boxes.

43 Helpful vote Comments

Y***h

Turkey

Verified Purchase

5 .0

2025-10-30

Solid industrial 155M SFP optics. Installed these in our roadside traffic control cabinets and they fired right up.

32 Helpful vote Comments

Q***n

Norway

Verified Purchase

5 .0

2025-10-22

We needed rugged 155M SFP modules to swap out old fiber modems at an electrical substation. The duplex LC interface locks cleanly, and the industrial casing handles electromagnetic interference effortlessly.

77 Helpful vote Comments

D***d

Czech Republic

Verified Purchase

4 .0

2025-09-09

Excellent 1310nm 40km industrial SFP module for the price. The metal pull-tab latch mechanism is extremely stiff, making it slightly hard to remove from deep, crowded switch slots, but it won't shake loose!

26 Helpful vote Comments

V***e

Belgium

Verified Purchase

4 .0

2025-09-02

The transceivers perform flawlessly on our 35km single-mode links. However, reading the exact model and serial numbers on the metal housing is tough in dark, unlit field cabinets.

11 Helpful vote Comments

A***r

United States

Verified Purchase

5 .0

2025-08-21

Bulletproof wide-temperature transceivers. Surviving the Texas summer heat inside an uncooled remote node enclosure perfectly.

58 Helpful vote Comments

S***m

Finland

Verified Purchase

5 .0

2025-08-13

We recently overhauled a regional water utility SCADA network across a 38-kilometer geographic radius. We standardized on the LINK-PP LS-SM3101-40I due to its true industrial operating temperature envelope. Running over standard 9-micron single-mode fiber, the 1310nm wavelength retains an exceptional power budget that mitigates splice losses over long runs. The integrated SFF-8472 DOM telemetry is crucial for our field technicians, allowing them to monitor real-time Tx/Rx power levels directly via our industrial switch CLI. This is an elite component for remote rugged deployments.

105 Helpful vote Comments