DWDM vs CWDM
я. Введение
А. Definition of DWDM
Б. Definition of CWDM
II. Comparison of DWDM and CWDM
А. Transmission Range
1. DWDM: Able to transmit over longer distances (вплоть до 80 км)
2. CWDM: Подходит для более коротких расстояний (вплоть до 40 км)
Б. Channel Capacity
1. DWDM: Offers a higher channel capacity (вплоть до 160 channels)
2. CWDM: Provides a lower channel capacity (вплоть до 18 channels)
С. Wavelength Spacing
1. DWDM: Provides smaller wavelength spacing (0.8 nm or less)
2. CWDM: Offers larger wavelength spacing (20 nm or more)
Д. Расходы
1. DWDM: Generally more expensive due to the advanced technology required
2. CWDM: Cost-effective option for less demanding applications
Е. Equipment Complexity
1. DWDM: Requires more complex equipment and advanced networking knowledge
2. CWDM: Simpler equipment with easier installation and maintenance
Ф. Upgradability
1. DWDM: Allows for scalability and future upgrades
2. CWDM: Limited upgradability due to its lower channel capacity
III. Приложения
А. DWDM
1. Long-haul networks
2. Центры обработки данных
3. Интернет-провайдеры
Б. CWDM
1. Metropolitan networks
2. Access networks
3. Корпоративные сети
IV. Заключение
А. Summary of the differences between DWDM and CWDM
Б. Considerations for choosing between DWDM and CWDM based on specific requirements
С. Importance of selecting the right technology for optimal network performance and cost-effectiveness.
