When 3 Cisco gain-flattened ED FA is operated in the “constant gain’ mode, it has which
one of these characteristics?
A.
a gain that is tightly controlled by an AGC system, provided that no new wavelengths are
added
B.
fixed gain per wavelength, even when new wavelengths are added
C.
fixed aggregate optical power at the output when new wavelengths are added
D.
a fixed gain, determined at the factory and specified by a unique ordering code