Which of the following boards can support 400G/A?

The correct answer isN402. TheN402 boardis specifically designed to support400G per wavelengthtransmission, making it ideal for high-capacity optical networks. Key features of the N402 board include: High-Speed Transmission:Supports data rates up to 400G per wavelength, enabling efficient traffic aggregation in backbone and core networks. Advanced Modulation:Uses modulation schemes like DP-16QAM (Dual Polarization 16 Quadrature Amplitude Modulation) to achieve high spectral efficiency. Flexibility:Compatible with various network architectures, including OTN, WDM, and SDH. Scalability:Can be integrated into existing networks to boost capacity without requiring a complete overhaul. Other options: N220:Typically supports lower data rates (e.g., 100G). N502:Designed for mid-range applications, not 400G. N602:Focuses on access networks rather than high-speed backbone transmission.
Reference: Huawei N402 Board Specifications ITU-T G.709 Standards for OTN