The wavelength division system mainly uses DCM compensation to compensate for chromatic dispersion. Which of the following descriptions about DCM dispersion compensation is wrong?

Question

Options

• ADCM modules are more likely to cause nonlinearity than line transmission fibers, so the optical
• BFor 10G systems with line fiber lengths of less than 400 km, G.652 DCM can be used to
• C655 (LEAF).
• DImproper DCM configuration will lead to degradation of receiving end performance.
• EImproper DCM configuration will cause the system signal-to-noise ratio to deteriorate.

• A
  15% (6)
• B
  3% (1)
• C
  3% (1)
• D
  72% (28)
• E
  8% (3)

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