Applicable to AU/BU only with SW version 5.0 and higher.
For BreezeNET-B products and SU-EZ with SW version 1.00.15
it is not relevant.
The value configured in the relevant SU/RB for the CIR Maximum
Delay parameter.
It returns maximum value on 32 bits for SU-EZ with 1.00.15
and this means NA (Not Available).