Description
The AddOn QSFP28-OTU4-CWDM4-AO is a high-performance, MSA-compliant optical transceiver designed to deliver 100GBase-CWDM4, OTU4, and 128G Fibre Channel connectivity over single-mode fiber (SMF) up to 2 km. Operating across CWDM wavelengths from 1270 nm to 1330 nm, this module uses a duplex LC connector and supports four lanes at 28.05 Gbps each, providing a total aggregate data rate of 100 Gbps.
Ideal for high-capacity data center, metro, and enterprise network applications, this hot-pluggable transceiver includes Digital Optical Monitoring (DOM) for real-time performance diagnostics and monitoring. It meets IEEE 802.3ba, QSFP28 MSA, and OTU4 standards, is fully RoHS compliant, TAA compliant, and backed by AddOn’s limited lifetime warranty.
Engineered for reliability and seamless interoperability, the QSFP28-OTU4-CWDM4-AO ensures consistent performance in demanding environments, offering superior ESD protection, low EMI, and optimized power efficiency for next-generation high-speed networks.
| Specification | Details |
|---|---|
| Manufacturer | AddOn |
| Part Number | QSFP28-OTU4-CWDM4-AO |
| Form Factor | QSFP28 |
| Data Rate | 100 Gbps (4 × 28.05 Gbps lanes) |
| Supported Protocols | 100G Ethernet, OTU4, 128G Fibre Channel |
| Reach / Distance | Up to 2 km |
| Wavelength Range | 1270 nm – 1330 nm (CWDM4) |
| Connector Type | Duplex LC |
| Fiber Type | Single-Mode Fiber (SMF) |
| Optical Power (per lane) | -4.5 dBm to +2.5 dBm |
| Receiver Sensitivity | ≤ -9 dBm |
| Overload Power | +2.5 dBm |
| Extinction Ratio | ≥ 3.5 dB |
| Digital Optical Monitoring (DOM) | Supported |
| Operating Case Temperature | 0 °C to +70 °C |
| Storage Temperature | -40 °C to +85 °C |
| Power Dissipation | ≤ 3.5 W |
| Supply Voltage | 3.3 V |
| Connector Compliance | QSFP28 MSA |
| Compliance Standards | IEEE 802.3ba, OTU4, RoHS, TAA |
| Applications | Ethernet over CWDM, Metro, Access, Enterprise |
| 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
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