Price of the best-selling DWDM module used at El Salvador Airport

DWDM SFP modules, commonly used in high-capacity networks like airports, typically range from $200 to $1,500 per module depending on data rate and reach.

Overview of DWDM Modules

Dense Wavelength Division Multiplexing (DWDM) modules are optical transceivers that allow multiple data channels to travel over a single fiber, maximizing bandwidth and supporting long-haul transmission . Airports, including El Salvador Airport, often deploy DWDM SFP or SFP+ modules for backbone connectivity, as they provide flexible, cost-effective solutions for 1G to 10G data rates and can support distances from 40 km up to 100 km or more .

Factors Affecting Price

1. Data Rate: Modules supporting 10G or higher (SFP+) are more expensive than 1G SFP modules.
2. Channel Spacing: Tighter wavelength spacing (50 GHz vs 100 GHz) increases cost due to higher precision requirements.
3. Reach: Long-haul modules with built-in amplification or dispersion compensation cost more than short-distance modules.
4. Vendor and Certification: Modules from major manufacturers with compliance to GR-1221, RoHS, and GR-1209 standards are priced higher due to reliability and warranty .

Typical Price Range

• 1G DWDM SFP: Approximately $200–$400 per module.
• 10G DWDM SFP+: Approximately $500–$1,500 per module.
• High-capacity modules (40G–400G): Can exceed $2,000–$5,000 per module depending on specifications and vendor .

Conclusion

While the exact module used at El Salvador Airport is not publicly disclosed, DWDM SFP and SFP+ modules are the most common for airport optical networks, and their prices generally fall within the ranges above. For precise procurement, contacting authorized DWDM suppliers or integrators servicing Central American airports would provide the most accurate and up-to-date pricing.