Hello, everyone!
This post will share you the signal flow for N402P board.
The transmit and receive directions are defined in the signal flow of the N402P board. The transmit direction is defined as the direction from the backplane to the WDM side of the N402P board, and the receive direction is defined as the reverse direction.
Transmit direction:
1, the port in 100G mode:
The 2x100G/2x200G/1x400G OTN processing module automatically adjusts the mode to 100G, receives ODUk electrical signals from cross-connect boards through the backplane, performs OTN framing and FEC encoding on the signals, and outputs one OTU4 electrical signal.
The WDM-side rate/modulation format tunable optical module automatically adjusts the mode to 100G and the modulation format to 100G ePDM-QPSK or 100G ePDM-QPSK wDCM. After receiving the OTU4 electrical signal from the 2x100G/2x200G/1x400G OTN processing module, the optical module performs E/O conversion and uses the OUT optical port to output one OTU4 optical signal.
2, The port in 200G mode:
The 2x100G/2x200G/1x400G OTN processing module automatically adjusts the mode to 200G, receives ODUk electrical signals from cross-connect boards through the backplane, performs OTN framing and FEC encoding on the signals, and outputs one OTUC2 electrical signal.
The WDM-side rate/modulation format tunable optical module automatically adjusts the mode to 200G and the modulation format to 200G ePDM-QPSK or 200G ePDM-16QAM or 200G_8QAM. After receiving the OTUC2 electrical signal from the 2x100G/2x200G/1x400G OTN processing module, the optical module performs E/O conversion and uses the OUT optical port to output one OTUC2 optical signal.
3, The port in 400G mode:
The 2x100G/2x200G/1x400G OTN processing module automatically adjusts the mode to 400G, receives ODUk electrical signals from cross-connect boards through the backplane, performs OTN framing and FEC encoding on the signals, and outputs one OTUC4 electrical signal.
The WDM-side rate/modulation format tunable optical module automatically adjusts the mode to 400G and the modulation format to 2 x 200G ePDM-QPSK or 2 x 200G ePDM-16QAM or 2x200G_8QAM. The OTUC4 electrical signal is sent to the two optical modules. The optical modules perform E/O conversion and use the OUT1 and OUT2 optical ports to output two optical signals.
Receive direction:
1, the port in 100G mode:
The WDM-side rate/modulation format tunable optical module automatically adjusts the mode to 100G and the modulation format to 100G ePDM-QPSK or 100G ePDM-QPSK wDCM. After receiving the OTU4 optical signal on the IN optical port, the optical module performs O/E conversion and outputs one OTU4 electrical signal to the 2x100G/2x200G/1x400G OTN processing module.
The 2x100G/2x200G/1x400G OTN processing module automatically adjusts the mode to 100G, performs OTU4 framing and FEC decoding on the received electrical signal, and outputs ODUk electrical signals to the backplane for grooming.
2, The port in 200G mode:
The WDM-side rate/modulation format tunable optical module automatically adjusts the mode to 200G and the modulation format to 200G ePDM-QPSK or 200G ePDM-16QAM or 200G_8QAM. After receiving the OTUC2 optical signal on the IN optical port, the optical module performs O/E conversion and outputs one OTUC2 electrical signal to the 2x100G/2x200G/1x400G OTN processing module.
The 2x100G/2x200G/1x400G OTN processing module automatically adjusts the mode to 200G, performs OTUC2 framing and FEC decoding on the received electrical signal, and outputs ODUk electrical signals to the backplane for grooming.
3, The port in 400G mode:
The WDM-side rate/modulation format tunable optical module automatically adjusts the mode to 400G and the modulation format to 2 x 200G ePDM-QPSK or 2 x 200G ePDM-16QAM or 2x200G_8QAM. After receiving the optical signal on the IN1 and IN2 optical ports, the optical module performs O/E conversion and outputs one OTUC4 electrical signal to the 2x100G/2x200G/1x400G OTN processing module.
The 2x100G/2x200G/1x400G OTN processing module automatically adjusts the mode to 400G, performs OTUC4 framing and FEC decoding on the received electrical signal, and outputs ODUk electrical signals to the backplane for grooming.
That's all, I welcome everyone to leave a message and exchange in the comment area!
Thank you！
