[SI-LIST] How to measure inrush current.

Hi,
We use to hot swap our board from the backplane which is fed by -48V  supply 
from a battery.  In the board we are using a isolated 48V to 3.3V DCto DC  
converter which is having slow start feature.  At the primary section we have 
parallel capacitors at the 48v side whose total capacitance = 44uF. At the 
secondary side (3.3V side) we have many decaps which is spread over the rails 
of 3.3V. My question is how to calculate the inrush current ?  What is the 
total capacitance of my circuit whether i have to add both the capacitors in 
primary side as well as secondary side while calculating for inrush current?  
With Regards,
Vijay anand. G
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