Power Considerations; System Power; Baseboard; Backplane - Kontron CP6930 User Manual

6

Power Considerations

6.1 System Power

The considerations presented in the ensuing chapters must be taken into account by system integrators
when specifying the CP6930 system environment.
6.1.1

Baseboard

The CP6930 baseboard itself has been designed for optimal power input and distribution. Still it is necessary
to observe certain criteria essential for application stability and reliability.
The board is supplied by the 3.3V and the 5.0V from the backplane. All supply voltages from the backplane
are enabled with a predefined ramp-up time. The inrush current is limited by Hot-Swap controllers.
The table below indicates the absolute maximum input voltage ratings that must not be exceeded. Power
supplies to be used with the CP6930 should be carefully tested to ensure compliance with these ratings.
Table 6-1: Maximum Input Power Voltage Limits
Supply Voltage
+3.3 V
+5 V
The maximum permitted voltage indicated in the table above must
not be exceeded. Failure to comply with the above may result in dam-
age to your board.

6.1.2 Backplane

Backplanes to be used with the CP6930 must be adequately specified. The backplane must provide optimal
power distribution for the +3.3 V and +5 V power inputs.
Input power connections to the backplane itself should be carefully specified to ensure a minimum of power
loss and to guarantee operational stability. Long input lines, under-dimensioned cabling or bridges, high
resistance connections, etc. must be avoided. It is recommended to use POSITRONIC or M-type connector
backplanes and power supplies where possible.
Maximum permitted Voltage
+3.6 V
+5.5 V
WARNING
73
Power Considerations
CP6930 User Guide
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