Technical data

6-9
Power Requirements
Power Distribution
3 Write in the board computer’s current requirements in the line provided for VME slots 1
and 2 in the Lower Power Supply Worksheet (Table 6-9).
4 Determine each device’s current requirements from the Internal Device Requirements ta-
ble and the VME accessory card’s specifications sheet (Table 6-7).
5 Write in each device’s current requirements in the spaces provided in the Upper or Lower
Power Supply current budgeting worksheets (Table 6-8 and Table 6-9).
6 Total each column in both worksheets, then write the total in the Total Current Required
line.
7 If either worksheet has a column whose current totals exceed the maximum available for
that column’s voltage, you must reduce the number of devices to lower the total current
being drawn at that voltage. You may be able to relocate VME accessory cards between
the upper eight and lower two slots to reduce the power required from either power supply.