The INM Inter Arrival Time histogram during 15min
interval. An array of 32 octets (each 4 octets means amount of
a bin of histogram), designed for supporting from 0 to 7 bins
of the histogram.
The index of the particular bin incremented by an complete
impulse noise event is determained from the following
INMControl parameters.
Each bin has a value in the range 0x0 to 0xFFFFFFFF