单选题Given the formula: (Fiber Attenuation * Km) + (Splice Attenuation * # of Splices) + (Connector Attenuation * # of Connectors) + (Optical Fiber or OADM) + Buffer(Fiber aging)) With regard to SONET/SDH optical calculations, what will the given formula provide?（）Afiber lossBOSNR levelCpost amplificationDindex of reflectionEindex of refractionFpower post amplification budget
单选题
Given the formula: (Fiber Attenuation * Km) + (Splice Attenuation * # of Splices) + (Connector Attenuation * # of Connectors) + (Optical Fiber or OADM) + Buffer(Fiber aging)) With regard to SONET/SDH optical calculations, what will the given formula provide?（）
A
fiber loss
B
OSNR level
C
post amplification
D
index of reflection
E
index of refraction
F
power post amplification budget
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