What is the main difference between this industrial version (LS-SM3106-20I) and the standard commercial version (LS-SM3106-20C)?

The primary difference lies in operating temperature tolerance and component hardening. The industrial-grade LS-SM3106-20I is built with wide-temperature components rated for -40℃ to +85℃ (-40F to +185F), making it suitable for outdoor cabinets, roadside enclosures, and industrial plants. The commercial-grade LS-SM3106-20C is rated for indoor environments operating between 0℃ and 70℃ (32F to 158F).

Can I plug this 20km 1310nm single-mode fiber transceiver into a short 500-meter fiber patch link without causing receiver saturation?

Yes, you can safely connect it over short distances. The module's transmitter output power ranges from -15 dBm to -8 dBm, while the PIN photodiode receiver overload threshold is -8 dBm. Because the maximum transmit power does not exceed the receiver overload limit, short patch links will not damage or blind the receiver, eliminating the need for external optical attenuators on short runs.

Is the LINK-PP LS-SM3106-20I industrial transceiver compatible with Cisco Industrial Ethernet (IE) series and Moxa switches without extra configuration?

Yes, the LS-SM3106-20I strictly follows the SFP Multi-Source Agreement (MSA) standard, making it plug-and-play with open industrial platforms like Moxa, Hirschmann, and Siemens. For vendor-locked systems like Cisco IE series, Allen-Bradley, or Phoenix Contact, LINK-PP provides custom pre-coded EEPROM firmware upon request. Simply specify your target hardware model during order placement.

Does this 622Mbps industrial SFP module support Digital Diagnostics Monitoring (DDM/DOM) over long distances?

Yes, the module features built-in Digital Diagnostics Monitoring (DDM/DOM) compliant with SFF-8472. It allows network managers to remotely monitor internal operating parameters such as optical output power (TX), optical input power (RX), transceiver temperature, supply voltage, and laser bias current via SNMP or CLI in real time.

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LINK-PP LS-SM3106-20I 622M SFP 1310nm 20km DOM Duplex LC SMF Optical Transceiver Module (Industrial)

Name: LINK-PP LS-SM3106-20I 622M SFP 1310nm 20km DOM Duplex LC SMF Optical Transceiver Module (Industrial)
Brand: LINK-PP
SKU: 184403
Price: 12.9 USD
Availability: InStock
Rating: 4.9 (26 reviews)

# 184403

Product: LINK-PP LS-SM3106-20I 622M SFP 1310nm 20km DOM Duplex LC SMF Optical Transceiver Module (Industrial)
SKU: 184403
P/N: LS-SM3106-20I
Price: $ 15
Stock: 950 in Stock
Sold: 650
Product URL: https://www.l-p.com/products/481439.htm

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Compatible P/N:: LS-MM3106-02C | 2km; LS-MM3106-02I | 2km; LS-SM3106-02I | 2km; LS-SM3106-20C | 20km; LS-SM3106-20I | 20km; LS-SM3106-40C | 40km; LS-SM3106-40I | 40km

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LINK-PP LS-SM3106-20I 622M SFP Specifications

The LINK-PP LS-SM3106-20I industrial optical transceiver offers 622Mbps performance at a 1310nm wavelength and is optimized for long-distance single-mode fiber transmission. With support for reaches up to 20km, it ensures consistent optical communication in industrial environments.

LINK-PP Part Number	LS-SM3106-20I	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	622Mbps
Wavelength	1310nm	Max Cable Distance	20km
Connector	Duplex LC	Media	SMF
Transmitter Type	FP	Receiver Type	PIN
TX Power	-15 to -8dBm	RX Power	-32 to -6dBm
Receiver Sensitivity	<-28dBm	Receiver Overload	-8dBm
Operating Temperature Range	-40 to 85°C	Protocols	MSA Compliant

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Q: What is the main difference between this industrial version (LS-SM3106-20I) and the standard commercial version (LS-SM3106-20C)? By E***t on 2026-04-04

A: The primary difference lies in operating temperature tolerance and component hardening. The industrial-grade LS-SM3106-20I is built with wide-temperature components rated for -40℃ to +85℃ (-40F to +185F), making it suitable for outdoor cabinets, roadside enclosures, and industrial plants. The commercial-grade LS-SM3106-20C is rated for indoor environments operating between 0℃ and 70℃ (32F to 158F). By admin on 2026-04-05
Q: Can I plug this 20km 1310nm single-mode fiber transceiver into a short 500-meter fiber patch link without causing receiver saturation? By J***n on 2025-12-12

A: Yes, you can safely connect it over short distances. The module's transmitter output power ranges from -15 dBm to -8 dBm, while the PIN photodiode receiver overload threshold is -8 dBm. Because the maximum transmit power does not exceed the receiver overload limit, short patch links will not damage or blind the receiver, eliminating the need for external optical attenuators on short runs. By admin on 2025-12-12
Q: Is the LINK-PP LS-SM3106-20I industrial transceiver compatible with Cisco Industrial Ethernet (IE) series and Moxa switches without extra configuration? By P***h on 2025-07-23

A: Yes, the LS-SM3106-20I strictly follows the SFP Multi-Source Agreement (MSA) standard, making it plug-and-play with open industrial platforms like Moxa, Hirschmann, and Siemens. For vendor-locked systems like Cisco IE series, Allen-Bradley, or Phoenix Contact, LINK-PP provides custom pre-coded EEPROM firmware upon request. Simply specify your target hardware model during order placement. By admin on 2025-07-23
Q: Does this 622Mbps industrial SFP module support Digital Diagnostics Monitoring (DDM/DOM) over long distances? By A***r on 2024-11-04

A: Yes, the module features built-in Digital Diagnostics Monitoring (DDM/DOM) compliant with SFF-8472. It allows network managers to remotely monitor internal operating parameters such as optical output power (TX), optical input power (RX), transceiver temperature, supply voltage, and laser bias current via SNMP or CLI in real time. By admin on 2024-11-05

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E***n

Nepal

Verified Purchase

4 .0

2026-07-08

Freight delivery took 6 days instead of 4 due to regional warehouse delays. That said, the optical module itself works great. Tested the 1310nm FP laser over an 18km single-mode fiber span; receiver sensitivity was right at -28dBm without errors.

17 Helpful vote Comments

S***g

Australia

Verified Purchase

5 .0

2026-06-17

Essential component for outdoor edge routing. The FP laser transmitter and PIN receiver combo delivers consistent output across extreme thermal cycles. Will reorder for next quarter's infrastructure expansion.

43 Helpful vote Comments

A***n

Canada

Verified Purchase

5 .0

2026-04-26

Expanded our regional WISP tower nodes using these 1310nm 20km SFP modules. Real-time DOM telemetry lets our NOC monitor optical RX/TX levels remotely under severe weather conditions. Flawless so far =)

22 Helpful vote Comments

R***s

Thailand

Verified Purchase

4 .0

2026-01-01

One transceiver module was missing its rubber dust cap inside the tray. Cleaned the LC ferrule with an optical pen before insertion into our switch and it locked right in with solid optical signal across 10km.

11 Helpful vote Comments

I***z

Spain

Verified Purchase

5 .0

2025-11-21

Replacing old OEM optics on our municipal fiber ring. These 20km SMF modules delivered fantastic signal stability across unconditioned outdoor enclosure links. DDM telemetry feeds directly into Zabbix via SNMP with zero hassle =D

39 Helpful vote Comments

J***t

Argentina

Verified Purchase

5 .0

2025-10-23

Quick delivery and solid thermal stability!

39 Helpful vote Comments

K***s

Singapore

Verified Purchase

5 .0

2025-10-23

Perfect replacement for industrial STM-4 fiber links. Transmit power range from -15 to -8dBm gave us plenty of margin over a 14km single mode fiber run :D

7 Helpful vote Comments

A***n

Brunei Darussalam

Verified Purchase

5 .0

2025-06-17

Reliable module, good pricing.

24 Helpful vote Comments

S***r

Sweden

Verified Purchase

5 .0

2025-04-29

Upgraded our remote water treatment plant aggregation nodes. Needed hardened 622Mbps SFP transceivers that could survive harsh winter freezes. DDM temps reported -15C last week with zero bit errors over 12km SMF ;)

1 Helpful vote Comments

A***n

Republic of Korea

Verified Purchase

5 .0

2025-02-14

Perfect fit for ruggedized Ethernet switches in our substations. Plugged right into our RuggedCom hardware. :)

17 Helpful vote Comments

M***n

Netherlands

Verified Purchase

5 .0

2024-12-05

Deployed a batch of these industrial 622M SFP transceivers in our roadside traffic signal control cabinets where summer temps hit 45℃ inside. The industrial temperature range (-40℃ to +85℃) handles the heat effortlessly. DDM readings via CLI confirm optical power stays steady at -12dBm TX. Excellent optics =)

75 Helpful vote Comments

B***t

Spain

Verified Purchase

5 .0

2024-11-29

Installed these in non-climate-controlled power utility cabinets. They hold stable 622M throughput through heatwaves and cold snaps alike ;)

27 Helpful vote Comments

C***t

Bulgaria

Verified Purchase

5 .0

2024-11-02

Deployed these for smart grid telemetry links between remote substations. The wide operating temperature range handles ambient fluctuations with zero link flaps during 72-hour burn-in tests :-)

62 Helpful vote Comments

M***n

Australia

Verified Purchase

5 .0

2024-09-16

Instant link up! :-P

16 Helpful vote Comments

S***t

Taiwan, Province of China

Verified Purchase

5 .0

2024-09-14

Operates exactly as promised.

78 Helpful vote Comments

A***l

South Africa

Verified Purchase

5 .0

2024-07-05

Industrial rock solid!

38 Helpful vote Comments

T***l

Lithuania

Verified Purchase

5 .0

2024-07-03

Works smooth.

30 Helpful vote Comments

B***n

Poland

Verified Purchase

4 .0

2024-05-25

Outer shipping box arrived slightly squeezed on one corner, but internal antistatic blister packs kept all transceivers safe. Plugged all 10 modules into our outdoor patch panels and optical link budget is spot on. Good purchase.

95 Helpful vote Comments

B***z

Austria

Verified Purchase

5 .0

2024-05-09

Great industrial optics.

64 Helpful vote Comments

D***l

United States

Verified Purchase

5 .0

2024-04-13

Purchased 20 units for cellular base station backhaul links along an open highway route. The duplex LC connector latches firmly into place, and DOM monitoring tracks real-time operating voltage and thermal levels accurately in our NMS system ;)

54 Helpful vote Comments

N***s

Ireland

Verified Purchase

5 .0

2024-03-25

Ideal choice for OC-12 / STM-4 industrial automation transport networks. Fully compatible across our mixed Siemens and Hirschmann setup.

41 Helpful vote Comments

C***n

Morocco

Verified Purchase

5 .0

2024-03-21

Recognized immediately by our Moxa industrial switches without vendor lock-in errors :-D

19 Helpful vote Comments

B***n

Iran, Islamic Republic of

Verified Purchase

5 .0

2024-03-14

Plug and play.

64 Helpful vote Comments

H***z

Argentina

Verified Purchase

5 .0

2024-02-22

Top quality 622M optics!

97 Helpful vote Comments

M***k

Norway

Verified Purchase

5 .0

2024-02-04

Swapped out costly brand-name optics for LINK-PP LS-SM3106-20I modules across our outdoor surveillance camera networks. MSA compliance ensures seamless interoperability with Cisco IE3000 switches. Highly recommended for field deployments.

29 Helpful vote Comments

E***z

Hungary

Verified Purchase

5 .0

2024-01-07

Outstanding value for industrial SMF SFP.

39 Helpful vote Comments