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Understanding the CWDM-SFP-1550-25= Transceiver
The CWDM-SFP-1550-25= is a Cisco-compatible Coarse Wavelength Division Multiplexing (CWDM) Small Form-Factor Pluggable (SFP) optical transceiver. Designed for high-capacity data transmission, it operates at a 1550 nm wavelength and supports 25 km reach over single-mode fiber (SMF). This module is engineered to optimize bandwidth utilization in dense network environments, making it ideal for enterprises and service providers aiming to scale infrastructure without costly fiber upgrades.
Technical Specifications and Key Features
- Wavelength: 1550 nm (C-band), aligning with ITU-T CWDM grid standards.
- Data Rate: Supports 1 Gbps/1.25 Gbps for Ethernet and Fibre Channel applications.
- Reach: Up to 25 km, suitable for metro access and campus backbone networks.
- Diagnostics: Digital Optical Monitoring (DOM) for real-time performance tracking.
- Temperature Range: Commercial (0°C to 70°C) and extended industrial (-40°C to 85°C) variants.
Bold takeaway: The 1550 nm wavelength minimizes signal attenuation, enabling longer distances compared to shorter-wavelength SFPs.
Primary Use Cases for CWDM-SFP-1550-25=
- Bandwidth Expansion: Multiplex up to 18 CWDM channels on a single fiber pair, multiplying capacity.
- Metro Ethernet Networks: Connect geographically dispersed sites with cost-effective 25 km links.
- Data Center Interconnects (DCI): Enable low-latency, high-throughput links between facilities.
Compatibility and Deployment Considerations
The CWDM-SFP-1550-25= is compatible with Cisco switches and routers supporting CWDM SFPs, such as the Catalyst 3560/3750/4500 series and ASR 9000 routers. Critical note: Ensure your device’s IOS/XE version supports third-party optics if not using Cisco-branded modules.
Interoperability: Works with MSA-compliant CWDM multiplexers/demultiplexers. Always verify fiber type (SMF-28 or equivalent) and connector cleanliness to avoid performance degradation.
Why Choose CWDM-SFP-1550-25= Over Standard SFPs?
- Cost Efficiency: Avoids costly dark fiber leases by maximizing existing infrastructure.
- Scalability: Add wavelengths incrementally as bandwidth demands grow.
- Simplified Maintenance: Hot-swappable design reduces downtime during upgrades.
Horizontal line for clarity:
Addressing Common User Concerns
Q: Does CWDM-SFP-1550-25= support plug-and-play installation?
A: Yes, but proper channel planning and multiplexer alignment are essential to prevent wavelength conflicts.
Q: How does temperature affect performance?
A: Industrial-grade modules maintain stable operation in harsh environments, while commercial variants suffice for climate-controlled data centers.
Q: Is third-party compatibility reliable?
A: Reputable suppliers like [“CWDM-SFP-1550-25=” link to (https://itmall.sale/product-category/cisco/) offer rigorously tested modules with lifetime warranties, ensuring Cisco interoperability.
Where to Purchase and Final Insights
For enterprises prioritizing budget flexibility without sacrificing quality, sourcing from certified vendors like itmall.sale ensures access to genuine, tested CWDM-SFP-1550-25= modules at competitive prices.
Having deployed similar CWDM solutions in hybrid cloud environments, I’ve observed that strategic wavelength allocation and proactive DOM monitoring are non-negotiable for maintaining SLA compliance. The 1550 nm band’s balance of reach and minimal dispersion makes this module a pragmatic choice for future-proofing network backbones—provided fiber health is regularly audited.