Filter
Top Products
GFK-0825F Chapter 2 Description 2-5
2
Bus Interface Unit Power Dissipation
The Bus Interface Unit power dissipation can be determined once the backplane current supplied to
the I/O modules is known.
The following equation can be used to calculate BIU power dissipation:
BIU Power Dissipation = Input Power - (total backplane current x 6.5 volts)
For example:
A. Total backplane current = 0.5 Amps
B. Typical Input power = 7.7 Watts
Therefore:
BIU Power Dissipation = 7.7 W - ( 0.5 x 6.5 ) = 4.45 Watts