Description
The AddOn QSFP28-OTU4-ER4L-AO is a high-performance dual-rate optical transceiver designed for 100GBASE-ER4 and OTU4 applications over single-mode fiber (SMF). Operating across a wavelength range of 1295nm to 1309nm, this module delivers reliable connectivity up to 40km with host FEC enabled (30km without FEC) via a duplex LC connector. It supports aggregate data rates of 103.1Gb/s and 112Gb/s with a 4x25G electrical interface, ensuring seamless integration into modern high-speed networks.
Built to meet QSFP28 MSA, IEEE 802.3ba, and IEEE 802.3bm standards, this transceiver features a cooled 4x25Gb/s LAN WDM DML TOSA transmitter and a 4x25Gb/s APD ROSA receiver for superior optical performance. Digital Optical Monitoring (DOM) provides real-time diagnostics, while low power dissipation (<4.5W) and a single 3.3V power supply enhance energy efficiency. TAA compliance and a Class 1 laser safety certification make it ideal for government, enterprise, and carrier-grade deployments.
| Specification | Details |
|---|---|
| Form Factor | QSFP28 |
| Data Rate | 103.1Gb/s and 112Gb/s aggregate |
| Application | 100GBASE-ER4, OTU4, Infiniband QDR/DDR |
| Wavelength Range | 1295nm – 1309nm (LAN WDM) |
| Transmission Distance | Up to 30km (without FEC), 40km (with FEC) |
| Connector Type | Duplex LC |
| Fiber Type | Single-Mode Fiber (SMF) |
| Transmitter Type | Cooled 4x25Gb/s LAN WDM DML TOSA |
| Receiver Type | 4x25Gb/s APD ROSA |
| Optical Modulation Amplitude (OMA) | 0.5 to 6.5 dBm per lane |
| Average Launch Power (Per Lane) | -2.5 to 6.5 dBm |
| Extinction Ratio | ≥ 4.5 dB |
| Receiver Sensitivity | -18.5 dBm (BER=5x10⁻⁵), -14.5 dBm (BER=1x10⁻¹²) |
| Receiver Overload | -7 dBm |
| Power Supply Voltage | 3.14V – 3.47V |
| Power Consumption | < 4.5W |
| Operating Temperature | 0°C to 70°C |
| Diagnostics | Digital Optical Monitoring (DOM) |
| Compliance | QSFP28 MSA, IEEE 802.3ba, IEEE 802.3bm, RoHS 6/6, TAA |
| Safety Certifications | Class 1 Laser, FCC Part 15 Subpart B, EN55022:2010, FDA 21CFR, IEC 60825-1/2 |
| Interface | 4x25G Electrical Serial |
| Connector Interface | Duplex LC |
| Warranty | Limited Lifetime Warranty |
Payment & Security
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Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
From Scope to Sign-Off
A structured delivery process designed to reduce risk and keep projects moving.
Plan
Discovery, site review, requirements gathering, and project alignment. We define scope, constraints, and success criteria before any design work begins.
- Discovery calls & stakeholder interviews
- On-site survey & infrastructure review
- Requirements & use-case documentation
- Project scope, timeline & milestone alignment
Engineer
System design, schematics, signal flow, BOM development, and documentation. Every project leaves this phase with a complete engineering package.
- AV system design & signal flow diagrams
- Equipment selection & BOM development
- Rack layout & control system design
- As-built documentation package
Deploy
Procurement, logistics, installation, programming, commissioning, and training. We own the delivery from first shipment to final handoff.
- Authorized procurement & logistics coordination
- Physical installation & cable management
- Control system programming & configuration
- Commissioning, testing & end-user training
Support
Monitoring, maintenance, lifecycle planning, and long-term service agreements. We stay engaged long after project close.
- 24/7 remote system monitoring
- Preventive & reactive maintenance
- Technology lifecycle & refresh planning
- Long-term service level agreements
A decade of delivery — trusted by 275+ clients across industries
