The wave division system complement to chromatic dispersion mainly adopts the DCM compensation method. The following statements about DCM dispersion compensation, which is wrong?
A . Improper configuration of the DCM will result in degradation of the system signal-to-noise ratio.
B . 10G system with line fiber length less than 400km,
C . 652 DCI can be used to compensate
D . 655LEAF).
E . The DCM module is more likely to cause nonlinearity than the line transmission fiber, so it is necessary to strictly control its fiber-optic power.
F . Improper configuration of the DCM will result in degradation of the receiving end performance.
Answer: B