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100G BIDI (PAM4) QSFP28 Single Lambda xcvr, 10km, 1271nm-TX/1331nm-RX

100G QSFP28 single lambda BIDI LR1, TX 1271/ RX 1331nm, 10 km, Singlemode, LC-Simplex,  (works in pair with EN-QSFP28-BXD10)

Models:
QSFP-100G-BXU | 1271nm/1331nm | 10km  QSFP-100G-BXD | 1331nm/1271nm| 10kmQSFP-100G-BXU | 1291nm/1311nm | 20km QSFP-100G-BXD | 1311nm/1291nm | 20km 

Part Number: EN-QSFP28-BXU10


2 Units in stock

Price
$ USD 495.00 $ USD 495.00
$ USD 495.00

Terms and Conditions
 30-Day Returns | 30-Day Exchange *
Free Shipping over US$ 75
Shipping: 2-3 Business Days
Note: Final product appearance may vary slightly from the images shown.

Specifications

100G Transceivers for High-Performance Networks

Reliable, compatible, and deployment-ready 100G optical transceivers and direct attach solutions designed for data centers, enterprises, telecom networks, cloud environments, and AI-driven infrastructure. E.C.I. NETWORKS delivers a broad portfolio of 100G connectivity solutions engineered for performance, interoperability, and fast deployment across open and OEM networking environments.

Key Features
  • Multi-vendor compatibility with programmable EEPROM coding
  • Fully compatible with SONiC and open networking environments
  • QSFP28 MSA compliant
  • Compliant with 100G Single Lambda MSA 100G-LR1 Optical Specifications
  • Interoperable with IEEE 802.3cu
  • Single-lambda PAM4 transmission (53.125 GBd)
  • Available in Commercial (0°C to +70°C) and Industrial (-40°C to +85°C) temperature versions
  • Two-Wire Serial Interface with Digital Diagnostic Monitoring (DDM/DOM)
  • Supports KP4 FEC inside the module with KP4 FEC shutdown
  • Low power consumption (≤5W)
  • Class 1 Laser, RoHS compliant
  • Operating Temperature: Commercial (0°C to +70°C) or Industrial (-40°C to +85°C)
  • Power Supply: 3.3V

100G QSFP28 BiDi Optical Transceiver (10 km)

The E.C.I. NETWORKS BXU10/BXD10 and BXIU10/BXID10 are 100G QSFP28 BiDi LR1 optical transceivers designed for 100 Gigabit Ethernet over a single strand of single-mode fiber (SMF). Utilizing single-lambda PAM4 modulation, the modules integrate transmit and receive functions into a compact QSFP28 package with a simplex LC connector, supporting transmission distances of up to 10 km while complying with the 100G Single Lambda MSA and IEEE 802.3cu specifications. Commercial and Industrial temperature versions are available for deployment in enterprise, telecom, and industrial networking environments.

ParameterSpecificationParameterSpecification
Form FactorQSFP28Data Rate100Gbps (103.125–106.25Gbps optical)
Standard Compliance100G Single Lambda MSA LR1, IEEE 802.3cuModulationPAM4
ConnectorSimplex LCHost InterfaceQSFP28 MSA
Fiber TypeSingle Mode Fiber (SMF)Maximum Reach10 km
Transmit Wavelength1271 nm (BXU/BXIU) / 1331 nm (BXD/BXID)Receive Wavelength1331 nm (BXU/BXIU) / 1271 nm (BXD/BXID)
Transmit Power-1.4 dBm to +4.5 dBmReceiver Input Power-7.7 dBm to +4.5 dBm
Receiver Sensitivity (OMA)≤ -6.1 dBmOptical InterfaceSingle-Fiber BiDi
Electrical Lane Rate26.5625 GbpsOptical Lane Rate53.125 GBd PAM4
Power Supply3.3VPower Consumption≤5W
Digital DiagnosticsDOM/DDM SupportedFEC SupportKP4 FEC Supported
Operating Temperature0°C to +70°C (Commercial)
-40°C to +85°C (Industrial)
Storage Temperature-40°C to +85°C

Connectivity examples


Switch-to-switch: 100G BIDI Connectivity

This figure shows a direct connectivity between two switches using 100GBASE-SR4 QSFP28 transceivers connected by 1x multi-mode MTP to MTP patch cable.

Switch-to-server: 100G BIDI Connectivity With NIC

This figure shows a direct connectivity between two switches using 100GBASE-SR4 QSFP28 transceivers connected by 1x multi-mode MTP to MTP patch cable.

Selection Guide

Which 100G Transceiver Should I Choose? Selecting the right 100G transceiver depends on distance, fiber type, and infrastructure. Use the guide below to quickly identify the best option for your deployment. 

Selection CriteriaOptionRecommended TransceiversFiber / ConnectorTypical Use Case
Distance (Reach)≤ 100mSR4, SR BiDiMMF (MPO / LC)Intra-rack, leaf-spine


≤ 500mDR, PSM4SMF (LC / MPO)Data center interconnect


≤ 2kmFR, CWDM4SMF (LC)DCI / aggregation


10km – 40kmLR4, ER4SMF (LC)Campus / metro


≥ 80kmZR4SMF (LC)Long-haul / DCI
Fiber TypeMultimode (OM3/OM4/OM5)SR4, SR BiDiMPO / LCShort-range DC


Single-mode (OS2)DR, FR, CWDM4, LR4, ER4, ZR4LCMedium to long reach


Parallel SMFPSM4, PLR4MPOHyperscale / legacy MPO
Connector TypeMPO / MTPSR4, PSM4, PLR4Multi-fiberHigh-density links


Duplex LCCWDM4, LR4, DR, FR, ER4, ZR42 fibersStandard deployments


LC (BiDi MMF)SR BiDi2 fibersFiber reuse / migration
Optical TechnologyNRZ (4×25G)SR4, PSM4, LR4, CWDM4MPO / LCMature, widely deployed


PAM4 (Single Lambda)DR, FR, LR (new gen)LCAI / cloud / future-ready
Breakout Capability100G → 4×25GSR4, PSM4, DAC, AOCMPO / breakout cableServer fan-out
Power & Thermal2.5W – 3.5WSR4High-density DC


3.5W – 4.5WCWDM4, LR4Standard SMF


4.5W – 6WER4, ZR4Long distance

Applications

Deployment scenarios for this module

Data Center & Enterprise Networks

High-speed connectivity for leaf-spine architectures, server aggregation, and backbone upgrades supporting growing east-west traffic.

Telecom & Service Provider Transport

Robust optical connectivity for aggregation, metro, and long-haul transport across carrier and service provider networks.

Cloud, AI & Hyperscale Infrastructure

Reliable, low-latency links designed for high-performance computing, AI workloads, and scalable cloud environments.

Quality Certification

At E.C.I. NETWORKS, all our optical transceivers are CE, FCC, RoHS, and FDA laser compliant, meeting global standards for safety, environmental responsibility, and electromagnetic performance.

Key Certifications
CE
EMC Directive 2014/30/EU

Emissions and immunity compliance for IT and multimedia equipment.

FCC
Part 15, Class B

Verified as unintentional radiators with SDoC available.

IEC
62368-1 and 60825-1

Safety-certified and laser-classified (Class 1).

FDA
21 CFR 1040.10 / 1040.11

U.S. laser safety regulations.

RoHS
RoHS and REACH Compliant

Free from hazardous substances and environmentally responsible.

UL
UL / CB / cTUVus

Available on selected models per regional or customer needs.

Compliance Standards

These certifications ensure our transceivers are safe, interoperable, and built to meet the highest global compliance standards across data center, telecom, and enterprise environments.

Conflict-Free Sourcing

We comply with the SEC Conflict Minerals Rule, supporting ethical sourcing practices for minerals like tantalum, tin, tungsten, and gold.

Certification Logos

Performance & Reliability

We ensure our optical transceivers deliver exceptional performance and long-term reliability through rigorous testing on industry-leading equipment.

Power & Wavelength Testing

We verify signal strength and wavelength stability to ensure seamless decoding and consistent transmission across the optical path.

Traffic Testing

All transceivers undergo bit error rate (BER) and packet loss testing to guarantee zero data loss and full compliance with Ethernet and Fiber Channel standards.

Optical Performance Validation

Our modules are evaluated for signal integrity, eye diagram clarity, and BER, ensuring stable, high-quality optical transmission in all operating conditions.

End Face Inspection

Each module's fiber interface is inspected and cleaned to eliminate contamination and physical defects - a critical step for optimal signal performance and long service life.

Warranty & Compatibility

Optical Transceivers (1G–400G): Lifetime (5 Years)

Zero Risk

Using our transceivers does not void the warranty of your network equipment. Global OEM policies and consumer protection laws (Magnuson-Moss Warranty Act) prevent manufacturers from denying support based solely on the use of third-party components.

Guaranteed Compatibility

Our modules are coded and tested for seamless operation across major platforms including Cisco, Arista, Juniper, HPE, Nvidia, Huawei, and more. This rigorous validation ensures plug-and-play reliability and full compliance with OEM specifications.

Technical Support & RMA

Have an issue? We provide full technical support and hassle-free RMA on all eligible transceivers. Our team is ready to help with any technical questions about compatibility or deployment. contact our technical support support@ecin.ca

Q&A

Commonly asked questions

No. Under the Magnuson-Moss Warranty Act and similar global consumer protection laws, OEMs cannot void your equipment warranty simply because you use a third-party transceiver. Your equipment warranty remains intact.

Yes. Our QSFP28 modules can be coded for major OEM platforms (Cisco, Juniper, Arista, Nvidia, etc.) and support open networking environments including SONiC.

A compatible generic version can be provided and coded before delivery.

Common types include SR4 (MMF, short reach), PSM4 (parallel SMF), CWDM4 (SMF up to ~2km), LR4 (SMF up to ~10km), and extended reach options like ER4. Each is designed for different distances and fiber types.

Choose based on distance and fiber: SR4 for short-range multimode (data center), CWDM4 for cost-effective singlemode up to ~2km, and LR4 for longer distances up to ~10km.

Yes. Our modules are coded for the specific platform you select at purchase. They are recognized natively by the switch OS without any additional configuration or commands.

No. Our transceivers meet the same IEEE and MSA specifications as OEM modules. They deliver identical optical performance, data rates, and reach characteristics.

Yes. We offer full support, RMA service, and warranty coverage on all modules.

Resources

Downloads and documentation

Certifications and Conflict Materials Statement

Product Datasheet

Product Quick Start Guide

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