The Allied Telesis AT-SPFX/40 Compatible LINK-PP module is a low-cost 155Mbps SFP optical transceiver operating at a 1310nm wavelength. Designed for single-mode fiber (SMF) applications, it supports transmission distances of up to 40km while ensuring stable signal quality and low attenuation, making it ideal for long-distance network deployments.
Allied Telesis Part Number
AT-SPFX/40
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
155Mbps
Wavelength
1310nm
Max Cable Distance
40km
Connector
Duplex LC
Transmitter Type
DFB 1310nm
Media
SMF
DOM Support
Yes
TX Power
-14 to -8dBm
RX Power
-32 to -6dBm
Receiver Sensitivity
<-32dBm
Receiver Overload
-1dBm
Commercial Temperature Range
0 to 70°C
Protocols
GR-468, MSA Compliant
Key Features of Allied Telesis AT-SPFX/40 Compatible LINK-PP 155M SFP
Designed for extended reach and operational visibility, this Allied Telesis AT-SPFX/40 Compatible LINK-PP 155M SFP module supports optical links up to 40km and integrates the Digital Optical Monitoring (DOM) feature. Combined with a duplex LC interface, it enables real-time diagnostics, simplified maintenance, and reliable long-haul fiber connectivity.
The Allied Telesis AT-SPFX/40 Compatible LINK-PP optical module is designed with an advanced DFB laser and a responsive PIN photodiode receiver, providing excellent optical efficiency, strong signal stability, and consistent long-range transmission performance in single-mode fiber networks.
AT-SPFX/40: Reliable 155Mbps Connectivity
The Allied Telesis AT-SPFX/40 Compatible LINK-PP SFP module ensures consistent 155Mbps data transmission, making it suitable for Fast Ethernet and SONET/SDH OC-3/STM-1 applications.
AT-SPFX/40 Module with 1310nm Wavelength
The Allied Telesis AT-SPFX/40 Compatible LINK-PP module operates in the 1310nm window with low chromatic dispersion and strong transmission stability. This allows for efficient long-distance communication with little signal loss over single-mode fiber.
AT-SPFX/40 Module Supporting 40km Transmission
Offering dependable 40km transmission performance, the Allied Telesis AT-SPFX/40 Compatible LINK-PP 155M SFP module is perfect for metropolitan area networks (MANs), access networks, and backbone links where long distances are required.
AT-SPFX/40 Module with Duplex LC Interface
The duplex LC connector includes a compact and industry-standard interface, ensuring easy integration with existing fiber infrastructure and enabling high-density deployments in switches and routers.
AT-SPFX/40 Module with DOM for Real-Time Monitoring
Supporting comprehensive Digital Optical Monitoring (DOM), the Allied Telesis AT-SPFX/40 Compatible LINK-PP module provides real-time access to essential diagnostic parameters such as temperature, voltage, transmit power, and receive power. These advanced monitoring capabilities facilitate proactive network management, reduce maintenance complexity, and improve overall system reliability.
Crafted to ISO 9001 standards and validated through CE, RoHS, and FCC compliance, the LINK-PP module stands for dependable quality and worldwide trust.
Each LINK-PP module is thoroughly examined for transmission accuracy, compatibility reliability, and operational consistency before shipment.
AT-SPFX/40 Quality Certifications
Every module is supported by certified quality assurance processes that reinforce reliable deployment and stable network integration.
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 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.
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 is a global standard that sets out the requirements for an occupational health and safety management system (OH&SMS).
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.
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.
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 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.
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 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.
AT-SPFX/40 Certified for Reliable Host-Device Compatibility
Thorough compatibility testing confirms reliable integration with LINK-PP equipment, ensuring consistent performance and dependable optical connectivity.
Rigorous Testing Ensures Reliable SFP Performance
Each transceiver is subjected to strict operational analysis to confirm reliable communication performance and long-term stability. For additional guidance, please refer to the LINK-PP Test Support Center.
Optical Spectrum Test
Confirms wavelength correctness and optical output stability within defined transmission parameters.
Eye Pattern Test
Ensures a clean signal waveform with little distortion for efficient data transmission.
Bit Error Rate Test
Verifies low error rates and reliable communication performance under real-world conditions.
Temperature Test
Assesses module stability and performance across a wide temperature range.
Product Shipping for Allied Telesis AT-SPFX/40 Compatible LINK-PP 155M SFP
Every LINK-PP module is packaged with transit protection in mind to ensure dependable delivery and reliable product condition upon arrival.
Anti-Static Protective Packaging
Specialized ESD-control packaging enhances transport safety and reduces the possibility of static discharge damage.
Shock-Resistant Transport Protection
Secure transport protection helps reduce damage risks associated with rough handling and shipping movement.
Fast Order Processing and Dispatch
Efficient warehouse and logistics management contribute to faster shipping turnaround times.
Global Logistics and International Delivery
Global logistics management helps ensure efficient transportation and dependable overseas shipment handling.
The Allied Telesis AT-SPFX/40 Compatible LINK-PP SFP provides stable 155Mbps optical connectivity over distances up to 40km, with real-time DOM monitoring for enhanced network visibility. It is widely deployed in Fast Ethernet links, SONET OC-3/SDH STM-1 systems, metropolitan access networks, and long-distance fiber backbones.
AT-SPFX/40 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
Professional technical guidance to help customers select the most suitable AT-SPFX/40 modules based on network architecture and application requirements.
Compatibility Verification Support
Compatibility checks and validation to ensure seamless operation with Cisco switches and other supported networking platforms.
Deployment & Installation Assistance
Step-by-step support for installation, configuration, and initial deployment to ensure stable and correct operation.
Long-Term Technical Assurance
Ongoing technical support throughout the product lifecycle to ensure reliable performance in enterprise and carrier-grade networks.
A:
Yes. It supports Digital Diagnostic Monitoring (DDM/DOM), allowing you to monitor transmit power, receive power, temperature, supply voltage, and laser bias current from supported switches. By
admin on
2026-04-05
A:
Yes. As long as both transceivers use the same 155Mbps standard, 1310nm wavelength, duplex LC interface, single-mode fiber, and compatible transmission distance, they can normally interoperate without issue. By
admin on
2025-11-06
A:
Yes, as long as the equipment cabinet maintains a commercial operating environment. The LS-SM3101-40C is a Commercial Temperature (0°C to 70°C) 155M SFP transceiver, making it suitable for telecom rooms, enterprise equipment rooms, and climate-controlled outdoor cabinets. For harsh outdoor environments without temperature control, an industrial-temperature optical module such as the LS-SM3101-40I is recommended. By
admin on
2025-07-15
A:
Yes. Many customers deploy it on shorter single-mode fiber links. If the actual distance is very short, it's recommended to verify the optical power budget and use an optical attenuator if required by your equipment. By
admin on
2025-04-24
A:
Yes. The module supports OEM coding for many mainstream networking and telecom equipment vendors. Simply specify your equipment vendor before ordering, and the transceiver will be programmed for plug-and-play compatibility. By
admin on
2024-07-24
Please write comments with more than three
character.
477629
348364
Caroline Green
Germany
Verified
Purchase
5 .0
2026-02-05
We purchased these modules for a utility communication network that still relies on STM-1 transmission. Installation was straightforward, and every link came online without additional configuration.
Please write comments with more than three
character.
477629
348367
Emma Rogers
Spain
Verified
Purchase
5 .0
2025-12-19
Our engineering team evaluated these optics for a long-distance utility communication network. Optical performance remained stable over single-mode fiber, and the modules met all project requirements for STM-1 connectivity. We will continue purchasing them for future maintenance contracts.
Please write comments with more than three
character.
477629
348369
Hannah Lee
Iran, Islamic Republic of
Verified
Purchase
5 .0
2025-06-02
Our customer operates a legacy SDH backbone connecting several remote facilities. We installed these LS-SM3101-40C modules across multiple 40km fiber spans, and every link synchronized successfully. Signal quality remained stable throughout burn-in testing, making them a dependable replacement for original branded optics.
Please write comments with more than three
character.
477629
348362
Jeffrey Stewart
Libyan Arab Jamahiriya
Verified
Purchase
5 .0
2024-09-04
During a scheduled network upgrade, we replaced several aging 155Mbps transceivers with this model. Installation required no additional adjustments, and every duplex LC connection established immediately. The modules have operated continuously without alarms or unexpected interruptions.
Please write comments with more than three
character.
477629
348360
Paige Rodriguez
Argentina
Verified
Purchase
5 .0
2024-07-05
We tested these modules with several OEM-coded devices before rollout. Every unit was recognized correctly and operated normally throughout acceptance testing.
Please write comments with more than three
character.
477629
348358
Rachel Green
Norway
Verified
Purchase
5 .0
2024-04-27
Used these 155M optical transceivers to replace aging OEM modules in our telecom rack. Performance has remained stable for several weeks of continuous service.
Please write comments with more than three
character.
477629
348354
Morgan Campbell
New Zealand
Verified
Purchase
5 .0
2024-04-20
We maintain telecom equipment that still depends on OC-3 transmission. These modules integrated seamlessly into the existing infrastructure, and compatibility was exactly as expected after OEM coding. The consistent manufacturing quality across all units was especially impressive.
Singapore · English · SGD
