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LINK-PP LS-SM552G-A2C 2.5G SFP 1550nm 120km DOM Duplex LC SMF Optical Transceiver Module
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LINK-PP LS-SM552G-A2C 2.5G SFP 1550nm 120km DOM Duplex LC SMF Optical Transceiver Module

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Product summary

Product
LINK-PP LS-SM552G-A2C 2.5G SFP 1550nm 120km DOM Duplex LC SMF Optical Transceiver Module
SKU
202182
P/N
LS-SM552G-A2C
Price
$ 112
Stock
110 in Stock
Sold
990
Product URL
https://www.l-p.com/products/491661.htm
For Order Over $1000 Get $15.00 Off , Code: Linkpp15
For Order Over $3000 Get $50.00 Off , Code: Linkpp50
For Order Over $5000 Get $100.00 Off , Code: Linkpp100
New Users: $10 Coupon for Orders , Code: linkpp2610
21 Reviews
3 Questions
990 Sold
$ 112 ( 0% OFF )
Free shipping. For wholesale pricing, please contact us directly.
Qty (pcs) :
Unit Price :
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$ 112
100
$ 106.4
1000
$ 103.04
3000
$ 99.68
6000
$ 96.32
Manufacture: LINK-PP P/N: LS-SM552G-A2C SKU: 202182
Compatible:
LINK-PP
Compatible P/N:
LS-SM552G-20C | 20km
LS-SM552G-20I | 20km
LS-SM552G-40C | 40km
LS-SM552G-40I | 40km
LS-SM552G-80C | 80km
LS-SM552G-80I | 80km
LS-SM552G-A2C | 120km
Shipping:
Free Shipping
to United States via FedEx
Estimated delivery time : 3 - 10 days.
5-Year Warranty 30-Day Returns 30-Day Exchange
Warranty
  • Providing industry-leading 5-year warranty.
  • Read the table for details of all products' warranty.
Returns & Exchange
  • Refunds will be received about 5 business days after the receipt of returned items.
  • Items in stock for replacement can be shipped within 1 business day.
  • Read the full return policy for details.
Stock:
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LINK-PP LS-SM552G-A2C 2.5G SFP Specifications

The LINK-PP LS-SM552G-A2C SFP transceiver runs at a 1550nm wavelength and provides reliable, high-performance optical connectivity, supporting data rates of up to 2.5Gbps over single-mode fiber (SMF) for transmission distances of up to 120 km.

LINK-PP Part Number LS-SM552G-A2C Vendor Name LINK-PP
Form Factor SFP Max Data Rate 2.5Gbps
Wavelength 1550nm Max Cable Distance 120km
Connector Duplex LC Media SMF
Transmitter Type DFB Receiver Type

APD
TX Power -2 to +3dBm RX Power -20 to -1dBm
Receiver Sensitivity <-30dBm DDM/DOM Supported
Operating Temperature Range 0 to 70°C Protocols

MSA Compliant

Key Features of LINK-PP LS-SM552G-A2C 2.5G SFP

Optimized for dependable long-haul transmission, the LINK-PP LS-SM552G-A2C module offers a data rate of 2.5Gbps and maintains stable signal integrity over extended distances of up to 120km. Its Digital Optical Monitoring (DOM) support enables real-time performance insights, while the duplex LC interface ensures quick installation and secure fiber connectivity.

LINK-PP LS-SM552G-A2C 2.5G SFP Optical Module

Featuring a high-performance DFB laser transmitter paired with an APD photodetector receiver, the LINK-PP LS-SM552G-A2C 2.5G optical module delivers enhanced sensitivity and reliable signal transmission, even across ultra-long distances.

LS-SM552G-A2C: Reliable 2.5 Gbps Connectivity for Capacity Expansion

The LINK-PP LS-SM552G-A2C module supports a throughput of up to 2.5Gbps, offering an efficient solution for network upgrades and capacity expansion without requiring major infrastructure changes.

LS-SM552G-A2C Module with 1550nm Wavelength

With a precise wavelength of 1550nm, this LINK-PP LS-SM552G-A2C module minimizes fiber attenuation, supporting stable, high-quality signal transmission over long distances.

LS-SM552G-A2C Module Supporting 120km Transmission

The LINK-PP LS-SM552G-A2C 2.5G SFP module supports transmission distances of up to 120 kilometers via single-mode fiber. It is ideal for long-distance communications, metropolitan area networks (MANs), and remote interconnection between data centers or enterprise sites.

LS-SM552G-A2C Module with Duplex LC Interface

The LS-SM552G-A2C transceiver’s duplex LC interface provides separate transmit and receive channels, making cable management easier while guaranteeing compatibility with conventional SMF infrastructure and preserving clear, steady optical signals.

LS-SM552G-A2C Module with DOM for Real-Time Monitoring

By enabling real-time monitoring of critical operating parameters like temperature, supply voltage, transmit power, and receive power, the integrated DOM capability assists you in promptly identifying and resolving problems.

LINK-PP LS-SM552G-A2C 2.5G SFP Certification

All LINK-PP optical modules conform to ISO 9001 and hold CE, RoHS, FCC certifications for uncompromising safety, eco-compliance, and international reliability.

Optical Transceivers Testing

LS-SM552G-A2C Quality Testing Program

Every module undergoes thorough pre-shipment validation to ensure optimal performance and long-term reliability.

LS-SM552G-A2C Quality Certifications

LINK-PP upholds ISO 9001 certification with full CE, RoHS, and FCC compliance for lifelong durability and performance.

ISO9001
This product is in conformity with ISO9001. This system is valid to a company engaging in development, production and supply service of fiber optical products. Please contact us to learn more.
ISO/IEC 27001
ISO/IEC 27001 is an international standard for managing and processing information security. This standard is jointly developed by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). It sets out requirements for establishing, implementing, maintaining, and continually improving an information security management system (ISMS). Ensuring the confidentiality, integrity, and availability of organizational information assets, obtaining an ISO 27001 certificate means that the enterprise has passed the audit conducted by a certification body, proving that its information security management system has met the requirements of the international standard. Please contact us to learn more.
ISO14001
This product is in conformity with ISO14001.It is intended for use by an organization seeking to manage its environmental responsibilities in a systematic manner that contributes to the environmental pillar of sustainability. Please contact us to learn more.
ISO 45001
ISO 45001 is a global standard that sets out the requirements for an occupational health and safety management system (OH&SMS).
RECH
REACH is a European Union regulation concerning the Registration, Evaluation, Authorization and Restriction of Chemicals. It came into force on 1st June 2007 and replaced a number of European Directives and Regulations with a single system. The regulation aims to protect human health and environmental safety, maintain and improve the competitiveness of the EU chemical industry, and develop innovative capabilities for non-toxic and harmless compounds to prevent market fragmentation, increase the transparency of the use of chemicals, promote non-animal experiments, and pursue sustainable social development.Please contact us to learn more.
CE
This product meets the applicable requirements of Directive (EU) 2015/863 of RoHS. It restricts the use of 10 hazardous materials in the manufacture of various types of electronic and electrical equipment: lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers, and four different phthalates. Please contact us to learn more.
FCC
This product fully accords with the FCC, which aims to manage the radio wave and magnetic fields more reasonably. Please contact us to learn more.
CB
CB is an international system operated by IECEE. This product is based on IEC standards for testing the safety performance of electrical products. Please contact us to learn more.
UKCA
This product fully accords with UKCA (UK Conformity Assessed) certificate, which signifies that it meets all relevant quality standards as well as health and safety requirements. Please contact us to learn more.
UL
UL certification is a non-mandatory certification in the United States,mainly testing and certification of product safety performance.Its ultimate purpose is to obtain products with a fairly safe level for the market,and to contribute to ensuring human health and property safety.Please contact us to learn more.

LS-SM552G-A2C Certified for Reliable Host-Device Compatibility

Comprehensive compatibility testing ensures seamless operation across LINK-PP-supported networking equipment.

Rigorous Testing Ensures Reliable SFP Performance

LINK-PP guarantees that each module satisfies stringent performance requirements through ongoing quality control and durability testing. Go to the LINK-PP Test Support Center for further details.

Optical

Optical Spectrum Test

Confirms exact wavelength compliance for optimal channel capacity utilization.

Optical

Eye Pattern Test

Superior eye openness proves robust defense against real-world signal degradation.

Optical

Bit Error Rate Test

BER validation guarantees crystal-clear data delivery.

Optical

Temperature Test

Temperature swing testing confirms the unwavering stability during harsh deployments.

Product Shipping for LINK-PP LS-SM552G-A2C 2.5G SFP

From dispatch to destination, each LINK-PP module is handled through a reliable logistics process that supports quick turnaround and worldwide reach.

Anti-Static Protective Packaging

Anti-Static Protective Packaging

Electrostatic shielding protects modules against static risks.

Shock-Resistant Transport Protection

Shock-Resistant Transport Protection

Protective layers shield modules from vibration and mechanical impact.

Fast Order Processing and Dispatch

Fast Order Processing and Dispatch

Efficient order management ensures fast and reliable fulfillment.

Global Logistics and International Delivery

Global Logistics and International Delivery

Comprehensive logistics networks ensure seamless international fulfillment.

LINK-PP LS-SM552G-A2C 2.5G SFP Usage Demonstration

The LINK-PP LS-SM552G-A2C 2.5G SFP module is capable of transmitting optical signals over long distances of up to 120 kilometers at 2.5Gbps. It's appropriate for switch-to-switch connections, fiber channel applications, Gigabit Ethernet, switched backplanes, router/server interfaces, and other optical networking scenarios.

LS-SM552G-A2C Technical Support

LINK-PP provides professional technical support, including pre-sales consultation, compatibility verification, and post-deployment troubleshooting to ensure smooth network operation.

Pre-Sales Technical Consultation

Pre-Sales Technical Consultation

Professional technical guidance to help customers select the most suitable LS-SM552G-A2C modules based on network architecture and application requirements.

Compatibility Verification Support

Compatibility Verification Support

Compatibility checks and validation to ensure seamless operation with Cisco switches and other supported networking platforms.

Deployment & Installation Assistance

Deployment & Installation Assistance

Step-by-step support for installation, configuration, and initial deployment to ensure stable and correct operation.

Long-Term Technical Assurance

Long-Term Technical Assurance

Ongoing technical support throughout the product lifecycle to ensure reliable performance in enterprise and carrier-grade networks.

LINK-PP LS-SM552G-A2C 2.5G SFP After-Sales Assurance

LINK-PP provides after-sales support for the smooth deployment and reliable operation of the optical modules.

15 days

15-day no-reason return and refund

Free maintenance or replacement

Free replacement for dead-on-arrival (DOA) or defective items within the initial period

Free maintenance

 Free repair services for manufacturing defects throughout the warranty period

Limitations

Warranty exclusions and conditions apply

Model Comparison Table

LS-SM552G-A2C
Current Model
LS-SM552G-A2C
LS-SM552G-40C
LS-SM552G-40C
LS-SM552G-80C
LS-SM552G-80C
LS-SM552G-20C
LS-SM552G-20C
LS-SM312G-15C
LS-SM312G-15C
LS-SM312G-10C
LS-SM312G-10C
Compatible
LINK-PP
LINK-PP
LINK-PP
LINK-PP
LINK-PP
LINK-PP
Data Rate (Max)
2.5Gbps
2.5Gbps
2.5Gbps
2.5Gbps
2.5Gbps
2.5Gbps
Wavelength
1550nm
1550nm
1550nm
1550nm
1310nm
1310nm
Connector
Duplex LC
LC duplex
LC duplex
LC duplex
Duplex LC
Duplex LC
Cable Distance (Max)
120km
40km
80km
20km
15km
10km
Cable Type
SMF
SMF
SMF
SMF
SMF
SMF
TX Power
-2 to +3dBm
-2 to +3dBm
-2 to +3dBm
-6 to +1dBm
-6 to +1dBm
-6 to +1dBm
Receiver Sensitivity
-20 to -1dBm
-20 to -1dBm
-20 to -1dBm
-20 to -1dBm
-20 to -1dBm
-20 to -1dBm
Operating Temperature
0 to 70°C
0 to 70°C
0 to 70°C
0 to 70°C
0 to 70°C
0 to 70°C
Form Factor
SFP
SFP
SFP
SFP
SFP
SFP
Transmitter Type
DFB
DFB
DFB
DFB
DFB
DFB
Receiver Type
APD
PIN
APD
PIN
PIN
PIN
DDM/DOM
Supported
Supported
Supported
Protocols
MSA Compliant
MSA Compliant
MSA Compliant
MSA Compliant
MSA Compliant
MSA Compliant
Action

LINK-PP

  1. SMF Optical Transceiver
  2. 2G SFP Transceiver

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Product Drawing LS-SM552G-A2C.pdf Download

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D***s
Bulgaria
Verified Purchase
5 .0
2026-06-26
As a regional network engineer, upgrading rural backhauls from 1G to 2.5G without pulling new fiber is critical. These 2.5G SFP 120km modules gave us the exact data rate boost we needed over a 98km duplex LC SMF span. The APD receiver sensitivity rated past -30dBm gives plenty of headroom against fiber aging and splices. They run very cool in our air-conditioned server room environment :-D
26 Helpful vote Comments
M***r
New Zealand
Verified Purchase
5 .0
2026-06-21
Ultra long haul 120km link bridged instantly without a glitch :)
48 Helpful vote Comments
A***s
South Africa
Verified Purchase
5 .0
2025-12-26
Excellent optical budget headroom for long haul metro rings. DDM reports temperature and voltage within 1% accuracy.
67 Helpful vote Comments
A***z
Hong Kong
Verified Purchase
5 .0
2025-08-07
High sensitivity APD receiver handles our 100km dark fiber span =D
48 Helpful vote Comments
T***s
Libyan Arab Jamahiriya
Verified Purchase
5 .0
2025-06-04
We installed these 2.5G 1550nm optics for high-speed storage replication between disaster recovery nodes separated by 100km. Real-time DOM output confirmed optical output power around +2 dBm and stable link margins. Flawless compatibility with our Brocade and Cisco storage switches under heavy SAN traffic load.
42 Helpful vote Comments
L***r
Republic of Korea
Verified Purchase
5 .0
2025-05-14
Our ISP team needed a cost-effective 1550nm 120km SFP solution to connect remote cell towers back to the central office. The LINK-PP modules fit perfectly into our Huawei and Mikrotik aggregation switches. Real-time DDM diagnostics accurately track TX bias and optical power levels. Operating comfortably in our 0 to 70°C indoor equipment room with rock-solid stability =D
31 Helpful vote Comments
B***z
Iran, Islamic Republic of
Verified Purchase
5 .0
2025-04-18
Tested 10 units of LS-SM552G-A2C during a core infrastructure refresh across our multi-site campus. Tested across a simulated 115km SMF spool with 5dB attenuator inline to avoid APD receiver overload (max -1dBm). Link sync was instantaneous at full 2.5Gbps throughput with zero packet drops during 72-hour RFC 2544 testing. Highly reliable SFP modules for long-distance transport networks ;)
42 Helpful vote Comments
A***n
United Kingdom
Verified Purchase
5 .0
2025-04-11
Great price for a true 1550nm 120km optic! DOM monitoring maps nicely into our Zabbix NMS via SNMP on Cisco Catalyst switches.
42 Helpful vote Comments
A***n
Philippines
Verified Purchase
5 .0
2025-04-06
Replaced our old 1G long haul optics with this 2.5G SFP 120km transceiver on our wireless backhaul route. DFB transmitter output is super stable :-D
34 Helpful vote Comments
E***s
Malaysia
Verified Purchase
5 .0
2025-03-27
Plugged into Mikrotik router, 1550nm signal locked clean ;)
48 Helpful vote Comments
E***e
Brunei Darussalam
Verified Purchase
5 .0
2025-01-13
High-performance APD detector makes a huge difference on 100km+ dark fiber spans where every fraction of a dB matters =D
84 Helpful vote Comments
M***l
Mexico
Verified Purchase
5 .0
2024-12-10
Upgraded our regional dark fiber ring connecting two branch offices 108km apart. Using these MSA compliant 2.5Gbps SFP modules saved us thousands compared to OEM brand optics. The 120km reach capability allowed us to bypass intermediate repeater huts entirely, cutting operational costs significantly :-)
26 Helpful vote Comments
C***g
Russian Federation
Verified Purchase
5 .0
2024-11-20
Upgraded GPON backhaul link speed to 2.5G. DFB laser delivers steady +1.5 dBm TX power right out of the box.
46 Helpful vote Comments
B***s
Singapore
Verified Purchase
4 .0
2024-09-18
The 120km 2.5G optic performance is outstanding and APD receiver sensitivity is top notch, but the anti-static packaging bag was torn on arrival. Luckily the module itself was undamaged and works fine on our 95km link ;)
63 Helpful vote Comments
G***n
Nepal
Verified Purchase
5 .0
2024-09-06
Used these 2.5Gbps modules to link two municipal data centers over 95km SMF duplex LC fiber. Zero framing errors after 48h soak testing ;)
41 Helpful vote Comments
A***z
Italy
Verified Purchase
5 .0
2024-08-10
Deploying 2.5G rate ports across long haul legacy fiber often causes receiver saturation or budget shortages, but the APD receiver on these optics is phenomenal. Measured sensitivity on our OTDR test was well below -31 dBm at 1550nm. Duplex LC interface clips securely, and heat dissipation is minimal inside high-density switch chassis.
62 Helpful vote Comments
I***s
Nepal
Verified Purchase
5 .0
2024-08-06
Flawless DDM telemetry readings across long haul SMF run.
92 Helpful vote Comments
L***t
Maldives
Verified Purchase
5 .0
2024-07-12
Deployed LS-SM552G-A2C for a rural ISP fiber extension across 105km. The APD receiver sensitivity easily handled attenuation through multiple splice closures =)
95 Helpful vote Comments
N***k
Russian Federation
Verified Purchase
5 .0
2024-04-30
Solid 2.5G SFP module for inter-city POP expansion.
57 Helpful vote Comments
A***e
Austria
Verified Purchase
5 .0
2024-04-25
Fully MSA compliant as advertised. Swapped into an Ubiquiti EdgeRouter port without any vendor lock warnings or speed negotiation issues :-)
32 Helpful vote Comments
N***t
Malaysia
Verified Purchase
5 .0
2024-01-22
We deployed a pair of LS-SM552G-A2C transceivers to bridge two edge routing facilities separated by 112km of single mode fiber. The 1550nm DFB transmitter paired with the high-gain APD receiver provided an exceptional optical link budget, locking in at -24.5 dBm RX power without needing an optical amplifier. DOM telemetry integrates flawlessly with our Juniper MX router CLI for continuous optical power monitoring. Exceptional long haul performance for enterprise core links.
93 Helpful vote Comments
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LINK-PP LS-SM552G-A2C 2.5G SFP 1550nm 120km DOM Duplex LC SMF Optical Transceiver Module

LINK-PP LS-SM552G-A2C 2.5G SFP 1550nm 120km DOM Duplex LC SMF Optical Transceiver Module

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