Can this 622Mbps SFP really support a 120km single-mode fiber link?

Yes. The LS-SM5506-A2C is designed for up to 120km transmission over SMF at data rates up to 622Mbps. It uses a 1550nm DFB laser transmitter and a Super TIA + PIN photodetector.

What type of fiber connector does this 622Mbps SFP use?

The LS-SM5506-A2C uses a Duplex LC optical interface and is designed for single-mode fiber (SMF) applications.

Does the LS-SM5506-A2C support DOM/DDM monitoring?

Yes. The module supports Real Time Digital Diagnostic Monitoring and is compliant with SFP MSA and SFF-8472 digital diagnostic functions, allowing compatible equipment to monitor operating and optical parameters.

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LINK-PP LS-SM5506-A2C 622M SFP 1550nm 120km DOM Duplex LC SMF Optical Transceiver Module

Name: LINK-PP LS-SM5506-A2C 622M SFP 1550nm 120km DOM Duplex LC SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 183356
Price: 33.11 USD
Availability: InStock
Rating: 5 (25 reviews)

# 183356

Product: LINK-PP LS-SM5506-A2C 622M SFP 1550nm 120km DOM Duplex LC SMF Optical Transceiver Module
SKU: 183356
P/N: LS-SM5506-A2C
Price: $ 38.5
Stock: 610 in Stock
Sold: 370
Product URL: https://www.l-p.com/products/478337.htm

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Manufacture: LINK-PP

P/N: LS-SM5506-A2C

Compatible:: LINK-PP

Compatible P/N:: LS-SM5506-40C| 40km; LS-SM5506-80C | 80km; LS-SM5506-80I | 80km; LS-SM5506-A0C | 100km; LS-SM5506-A0I | 100km; LS-SM5506-A2C | 120km; LS-SM5506-A2I | 120km

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LINK-PP LS-SM5506-A2C 622M SFP Specifications

The LINK-PP LS-SM5506-A2C is a 622Mbps SFP optical transceiver designed for long-distance transmission over single-mode fiber. Operating at a wavelength of 1550nm, it provides a reliable solution for long-haul networking environments with a maximum transmission reach of 120km.

LINK-PP Part Number	LS-SM5506-A2C	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	622Mbps
Wavelength	1550nm	Max Cable Distance	120km
Connector	Duplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
TX Power	0 to +5dBm	RX Power	-30 to -1dBm
Receiver Sensitivity	<-28dBm	Receiver Overload	-1dBm
Operating Temperature Range	0 to 70°C	Protocols	MSA Compliant

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Q: Can this 622Mbps SFP really support a 120km single-mode fiber link? By A***s on 2026-05-05

A: Yes. The LS-SM5506-A2C is designed for up to 120km transmission over SMF at data rates up to 622Mbps. It uses a 1550nm DFB laser transmitter and a Super TIA + PIN photodetector. By admin on 2026-05-05
Q: What type of fiber connector does this 622Mbps SFP use? By C***s on 2026-04-13

A: The LS-SM5506-A2C uses a Duplex LC optical interface and is designed for single-mode fiber (SMF) applications. By admin on 2026-04-13
Q: Does the LS-SM5506-A2C support DOM/DDM monitoring? By G***r on 2025-05-06

A: Yes. The module supports Real Time Digital Diagnostic Monitoring and is compliant with SFP MSA and SFF-8472 digital diagnostic functions, allowing compatible equipment to monitor operating and optical parameters. By admin on 2025-05-06

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B***s

India

Verified Purchase

5 .0

2026-07-13

Used these in an equipment room supporting legacy optical services. The hot-pluggable SFP design made replacement easy, while Real Time Digital Diagnostic Monitoring gave our technicians useful visibility into the link.

17 Helpful vote Comments

J***n

Philippines

Verified Purchase

5 .0

2026-05-08

Great fit for long-haul SMF. We have a 100+ km route between facilities, and these 622Mbps transceivers gave us the reach without replacing the existing fiber infrastructure. Compatibility testing was straightforward. ;)

82 Helpful vote Comments

S***z

Finland

Verified Purchase

4 .0

2026-05-02

The packaging could have been a little better, and delivery was slower than we expected. The module itself performed well once installed, with stable 622Mbps transmission over our 1550nm SMF link.

97 Helpful vote Comments

N***r

Iran, Islamic Republic of

Verified Purchase

5 .0

2026-03-31

Reliable 1550nm optical transceiver.

4 Helpful vote Comments

B***s

Israel

Verified Purchase

5 .0

2026-03-24

Good performance for the cost. The 622Mbps rate and 120km reach were exactly what we needed for a legacy network extension.

70 Helpful vote Comments

J***n

Ukraine

Verified Purchase

5 .0

2026-03-07

These modules were a good fit for our SONET OC-12 equipment. We tested several units in the lab before a larger deployment, and the SFP MSA and SFF-8472 support made integration straightforward.

88 Helpful vote Comments

R***n

Bulgaria

Verified Purchase

5 .0

2026-02-05

We tested this 622Mbps SFP against our existing equipment before production rollout. The link came up cleanly, and the DOM diagnostics were helpful for checking optical levels. A straightforward replacement option for our long-distance fiber links.

43 Helpful vote Comments

A***n

Turkey

Verified Purchase

5 .0

2026-01-08

The 120km single-mode fiber reach was the key requirement for our deployment. We checked TX and RX levels through the diagnostic interface during commissioning and had no unexpected link issues. =D

10 Helpful vote Comments

E***z

Mexico

Verified Purchase

5 .0

2025-12-21

Good option for remote fiber sites. The standard 0 to +70°C temperature range works for our controlled indoor cabinets, and the 622Mbps data rate is exactly what our older network equipment requires.

36 Helpful vote Comments

M***k

Maldives

Verified Purchase

5 .0

2025-08-11

Very stable so far. We deployed several modules for a regional fiber access project and tested them across compatible equipment before installation. The 1550nm DFB transmitter and PIN receiver performed as expected.

21 Helpful vote Comments

N***s

South Africa

Verified Purchase

5 .0

2025-07-08

Excellent long-reach SFP :)

76 Helpful vote Comments

A***t

Bangladesh

Verified Purchase

5 .0

2025-06-30

We ordered multiple units for a multi-site rollout. The modules were recognized by the compatible SFP equipment and worked well over our Duplex LC SMF connections. The price was also reasonable for this type of long-reach optic.

56 Helpful vote Comments

S***z

Germany

Verified Purchase

5 .0

2025-05-16

Good value for a 120km SFP. DOM readings were useful during installation and link verification.

95 Helpful vote Comments

A***e

Turkey

Verified Purchase

5 .0

2025-05-01

We installed these in several remote cabinets for a telecom fiber project. The 1550nm optics worked well over our long SMF routes, and the modules stayed stable during continuous operation.

25 Helpful vote Comments

E***t

Japan

Verified Purchase

5 .0

2025-03-29

Nice replacement for our older 622Mbps optical links. :D

83 Helpful vote Comments

A***z

Finland

Verified Purchase

5 .0

2025-01-02

Simple and reliable.

23 Helpful vote Comments

A***r

Netherlands

Verified Purchase

5 .0

2024-12-22

Installed a pair between two remote network cabinets with a long SMF run. The 120km reach gave us plenty of coverage for the route, and the Duplex LC connection worked cleanly with our existing fiber patching.

57 Helpful vote Comments

A***s

Brunei Darussalam

Verified Purchase

5 .0

2024-12-12

We needed a cost-effective 622Mbps SFP for a legacy optical network. This module matched the required rate, 1550nm wavelength, and long-distance fiber specification. DOM also helped our team check optical conditions during turn-up.

74 Helpful vote Comments

N***n

Hong Kong

Verified Purchase

5 .0

2024-12-12

We used the modules for a long-distance fiber link between two facilities. The transmitter output and receiver sensitivity gave us enough margin for our route, and the DOM function made troubleshooting much easier during acceptance testing.

66 Helpful vote Comments

S***s

Argentina

Verified Purchase

5 .0

2024-09-29

Solid 622Mbps optic.

34 Helpful vote Comments

T***r

Maldives

Verified Purchase

5 .0

2024-07-22

We used the LS-SM5506-A2C for a long-distance campus fiber connection. The 1550nm DFB laser delivered the reach we needed over single-mode fiber, and the link remained stable after commissioning.

18 Helpful vote Comments

C***n

United States

Verified Purchase

5 .0

2024-07-09

Good choice for legacy 622Mbps optical systems. We needed a long-reach SFP rather than a standard short-distance module, and the 120km SMF specification matched our network design.

83 Helpful vote Comments

N***z

Russian Federation

Verified Purchase

5 .0

2024-05-12

Works as advertised. =D

82 Helpful vote Comments

M***g

Denmark

Verified Purchase

5 .0

2024-04-11

Deployment was smooth across our test rack. The module supports SFP MSA and SFF-8472 digital diagnostics, and the Duplex LC receptacle matched our existing single-mode cabling. No complaints on the optical performance. :-D

27 Helpful vote Comments

E***n

United Kingdom

Verified Purchase

5 .0

2024-02-13

Worked right out of the box. The 1550nm wavelength and Duplex LC interface fit our existing SMF plant perfectly.

25 Helpful vote Comments