The Allied Telesis QSFP28-ER4 Compatible LINK-PP module is a high-performance 100G QSFP28 ER4 optical transceiver engineered for long-haul single-mode fiber communications. Operating over a LAN-WDM multiplexed grid across four channels, it strictly complies with QSFP28 MSA, IEEE 802.3ba 100GBASE-ER4, and OTN OTU4 standards to ensure robust 100Gbps transmission up to 40km with integrated DDM capabilities.
Allied Telesis Part Number
QSFP28-ER4
Vendor Name
LINK-PP
Form Factor
QSFP28
Max Data Rate
111.81Gbps
Wavelength
1295.56nm, 1300.05nm, 1304.58nm and 1309.14nm
Max Cable Distance
40km
Connector
Duplex LC
Media
SMF
Transmitter Type
EML
Receiver Type
APD
DDM/DOM
Supported
Operating Temperature Range
0°C to +70°C
Modulation (Electrical)
4x 25G-NRZ
Modulation (Optical)
4x 25G-NRZ
Protocols
QSFP28 MSA, SFF-8636, IEEE 802.3bm, CAUI-4
Warranty
5 Years
Key Features of Allied Telesis QSFP28-ER4 Compatible LINK-PP 100G QSFP28
This high-density 100G QSFP28 ER4 module leverages advanced cooled EML lasers and high-sensitivity APD receivers to guarantee superior signal integrity over extended distances. It seamlessly integrates four LAN-WDM lanes into a duplex LC interface, minimizing fiber deployment costs while maintaining exceptional network reliability for telecommunications and data center interconnects.
Engineered for maximum optical efficiency, this reliable 100G QSFP28 ER4 transceiver provides seamless 100Gbps connectivity over 40km of single-mode fiber with precision diagnostic monitoring.
QSFP28-ER4 : 100Gbps Connectivity for Metro DCI and Backbone Links
The QSFP28-ER4 provides stable 100Gbps connectivity for metro data center interconnects and campus backbone links where longer SMF reach is required. Its 40km design helps extend high-speed transport beyond standard short-reach optics while keeping the fiber plant simple.
QSFP28-ER4 Module with LAN-WDM Technology for Fiber Efficiency
Built on LAN-WDM technology, the 100G QSFP28 ER4 module carries 100G traffic across duplex SMF with efficient wavelength multiplexing. This reduces fiber complexity and supports high-capacity transmission without requiring parallel fiber bundles.
QSFP28-ER4 Module with Central Wavelengths of 4 Channels 1295.56nm, 1300.05nm, 1304.58nm and 1309.14nm
Utilizing the LAN-WDM grid, these tightly spaced optical channels operate within the O-band where chromatic dispersion is naturally minimized. This precise wavelength allocation ensures stable optical performance and virtually eliminates channel crosstalk over long single-mode fiber spans.
QSFP28-ER4 Module Supporting 40km Transmission
Utilizing high-gain Avalanche Photodiode (APD) technology, this 100G QSFP28 ER4 transceiver efficiently compensates for optical link loss over extended physical reaches. It provides a reliable, error-free data pipeline for long-haul 40km inter-site connectivity without the immediate need for external optical amplifiers.
QSFP28-ER4 Module with Duplex LC Interface
Equipped with an industry-standard Duplex LC receptacle, the module ensures precise optical alignment and low insertion loss for single-mode fiber connections. This universally adopted interface simplifies patching in dense routing environments and guarantees backward compatibility with standard optical cabling systems.
QSFP28-ER4 Module with DDM for Real-Time Monitoring
With DOM support, the QSFP28-ER4 allows real-time monitoring of key transceiver parameters, helping teams track link health and troubleshoot issues faster. This improves operational visibility in high-availability 100G QSFP28 ER4 environments.
The QSFP28-ER4 is positioned as a QSFP28 MSA-compliant 100G optical transceiver that undergoes strict quality and compatibility validation for dependable deployment.
Each unit is evaluated through a structured testing program to verify optical performance, link stability, and operational consistency.
QSFP28-ER4 Quality Certifications
The 100G QSFP28 ER4 module holds comprehensive compliance certifications including CE, FCC, RoHS, and MSA, ensuring safe and eco-friendly operation.
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.
QSFP28-ER4 Certified for Reliable Host-Device Compatibility
Certified through extensive multi-vendor switch testing to guarantee plug-and-play interoperability without vendor lock-in issues.
Rigorous testing protocols are implemented during manufacturing to ensure every 100G QSFP28 ER4 unit delivers flawless performance and long-term stability in high-demand network environments.
Optical Spectrum Test
Measures the central wavelengths and spectral width to confirm strict adherence to LAN-WDM grid specifications.
Eye Pattern Test
Evaluates optical signal quality, jitter, and rise/fall times to guarantee IEEE 802.3ba compliance.
Bit Error Rate Test
Subjects the transceiver to sustained high-speed data traffic to verify zero packet loss over the maximum 40km reach.
Temperature Test
Simulates harsh operational environments from 0 to 70 degrees Celsius to validate thermal stability and laser longevity.
Product Shipping for Allied Telesis QSFP28-ER4 Compatible LINK-PP 100G QSFP28
LINK-PP ensures the safe and rapid global delivery of the QSFP28-ER4 100G QSFP28 ER4 modules through a secure, standardized logistics framework designed to protect sensitive optical components.
Anti-Static Protective Packaging
Each 100G QSFP28 ER4 transceiver is sealed in an ESD-safe bag to prevent electrostatic discharge damage during handling and transit.
Shock-Resistant Transport Protection
Custom-molded foam inserts are used within the shipping cartons to absorb physical impact and vibration.
Fast Order Processing and Dispatch
Automated inventory management guarantees immediate order fulfillment and prompt dispatch for in-stock items.
Global Logistics and International Delivery
Partnerships with top-tier couriers provide end-to-end tracking and expedited shipping to worldwide data center locations.
Installing the Allied Telesis QSFP28-ER4 Compatible LINK-PP involves smoothly inserting the hot-pluggable 100G QSFP28 ER4 module into a compatible QSFP28 switch port until the mechanical latch clicks securely into place. Once seated, technicians connect the single-mode fiber patch cord to the Duplex LC interface, allowing the network management system to instantly read the DDM telemetry and establish a stable 100Gbps link.
QSFP28-ER4 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 QSFP28-ER4 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:
It is highly versatile. Besides being fully compliant with 100GBASE-ER4 Ethernet standards, it supports standard OTN OTU4 data rates, making it perfect for both enterprise data center interconnects (DCI) and long-haul telecom transport network applications. By
admin on
2026-06-01
A:
Absolutely! For large-scale B2B procurements of our 100G QSFP28 40km transceivers, please contact our B2B sales team. We provide tiered volume pricing and dedicated procurement support for enterprise and ISP clients. By
admin on
2026-04-10
A:
This specific module is designed for standard commercial operating temperatures (0°C to 70°C). However, we do offer an industrial-grade version (-40°C to 85°C) for this exact 1310nm 40km spec. Please check our store or contact support directly for the industrial SKU. By
admin on
2025-06-25
A:
This 1310nm LAN-WDM transceiver is designed exclusively for Single Mode Fiber (SMF) with a Duplex LC connector. To prevent receiver saturation and hardware damage on short test runs, we strongly recommend using OS2 SMF cable along with appropriate optical attenuators (usually 5dB to 10dB for lab testing). By
admin on
2025-06-12
A:
Yes, these extended-reach transceivers are strictly tested for OEM compatibility. They will plug and play seamlessly with Cisco, Arista, Juniper, Ubiquiti, and other major switch brands right out of the box without any vendor lock-in issues. By
admin on
2025-02-15
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472711
354864
P***z
Norway
Verified
Purchase
5 .0
2026-01-04
We use these QSFP28 100G ER4 transceivers for high-density core routing to remote edge sites. The DDM/DOM tracking is super accurate, and the 40km reach is completely legit.
Please write comments with more than three
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472711
354862
N***s
Austria
Verified
Purchase
5 .0
2025-06-21
Deployed these 100G QSFP28 LAN-WDM 40km modules for a metro DCI. Pushing 100G over 35km of SMF effortlessly. DDM readouts on our Arista 7060X routers are highly accurate with zero FEC errors!
Please write comments with more than three
character.
472711
354846
K***n
India
Verified
Purchase
5 .0
2022-10-09
The 10/25/40G Transceiver Modules are great and their service is even better. Most impressive was their communication throughout the entire process. They really answered and dealt with all my questions. Hands down, a superior online shopping experience compared to the local shop.
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