Back-to-back OTM sites, three new relay wavelengths are added, the diagram is as follows, which of the following statements is wrong?

Back-to-back OTM sites, three new relay wavelengths are added, the diagram is as follows, which of the following statements is wrong?

A . No impact on OTM site services
B . No need to readjust the input optical power of the optical amplifier board
C . No need to readjust the VOA on the relay wavelength
D . No need to readjust the VOA of the wave

View Answer

Answer: C