IEEE 802.3cn-2019 IEEE Standard for Ethernet - Amendment 4: Physical Layers and Management Parameters for 50Gb/s, 200Gb/s, and 400Gb/s Operation over Single-Mode Fiber

IEEE 802.3cn-2019 Стандарт IEEE для Ethernet - Поправка 4: Физические слои и параметры управления для 50Gb / с, 200Gb / s и 400ГБ / с Операция по одномодовому волоконно

Define physical layer specifications and management parameters for the transfer of Ethernet format frames at 50 Gb/s, 200 Gb/s, and 400 Gb/s at reaches greater than 10 km over single-mode fiber. Make TDECQ (Transmitter and dispersion eye closure for PAM4) related changes to existing 200 Gb/s and 400 Gb/s physical medium dependent sublayers over single-mode fiber.