Description
The AddOn Cisco® SFP25G-LR-S-I-DW3661 compatible SFP28 transceiver delivers reliable 25GBase-DWDM connectivity up to 10km over single-mode fiber (SMF) using a 1536.61nm wavelength with a duplex LC connector. Designed for industrial applications with a wide temperature range of -40°C to 85°C, this hot-swappable module is 100% Cisco-compatible and fully tested for seamless integration. Featuring digital optical monitoring (DOM) for real-time diagnostics, excellent ESD protection, and low EMI, it ensures consistent performance in demanding environments. Backed by a limited lifetime warranty, this TAA-compliant transceiver is ideal for access, metro, and enterprise network deployments.
| Specification | Details |
|---|---|
| SKU | SFP25G-LRSIDW3661-AO |
| Form Factor | SFP28 |
| Data Rate | 25GBase-DWDM (24.33 – 25.78 Gbps) |
| Wavelength | 1536.61 nm (DWDM ITU Channel D51) |
| Reach / Distance | Up to 10 km |
| Fiber Type | Single-Mode Fiber (SMF) |
| Connector Type | Duplex LC |
| Temperature Range | -40°C to +85°C (Industrial) |
| DOM Support | Yes |
| Power Dissipation | 2.0 W (Max) |
| Transmitter Power | -1 to +5 dBm |
| Receiver Sensitivity | -15 dBm (typical) |
| Extinction Ratio | ≥ 6 dB |
| Compliance Standards | SFF-8432, SFF-8472, RoHS 2.0, FCC Part 15, EN55022, IEC 60825-1, TAA |
| Hot Pluggable | Yes |
| Warranty | Limited Lifetime |
Payment & Security
Your payment information is processed securely, and we do not store credit card details or access your credit card information.
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
