Consider the exhibit showing the schematic for an NE ina deployed optical network.
The traffic growth forecast is for the use of 40 channels in 3 years. The customer needs to reduce the space for the shelf.
Among the following, which additional input is NOT necessary to meet these specific requirements?
A . Rack size
B . Expected traffic added-dropped at the site
C . Mean time to repair for the equipment
D . Power supply
Answer: D