How does the WSD9 board work?

Signal Flow

The WSD9 board demultiplexes the multiplexed main optical channel signals received by the IN port into multiplexed or single-wavelength signals, and drops them through ports DM1 to DM9.

Module Function

• Optical module
  • The WSS module inside the optical module extracts any single wavelengths or wavelength combinations from the multiplexed wavelength and directs them out of the predefined ports of the DM1-DM9 ports.
  • The WSS module supports wavelength-level power adjustments.
  • Splitters provide a small amount of the IN port power to the MON port for in-service performance monitoring.
• Temperature and optical power detection module
  • Monitors in real-time the WSS optical module operating temperature.
  • Detects in real-time the input optical power of service signals.
• Control and communication module controls the operation of functional modules and collects information about alarms, performance events, working states, and voltages from the functional modules.
• Power supply module

  Converts the DC power supplied by the backplane into the power required by each module on the board.