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