Kontron CP932 - Manual (Page 47)

CP932 Power Considerations
ID 30048, Rev. 01 © 2005 Kontron Modular Computers GmbH Page 5 - 3
3004
8.01.UG.VC.050622/19130
1
P R E L I M I N A R Y
5. Power Considerations
5.1 System Power
The considerations presented in the ensuing sections must be taken into account by system
integrators when specifying the CP932 system environment.
5.2 CP932 Voltage Ranges
The CP932 board 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 table below indicates the absolute maximum input voltage ratings that must not be exceed-
ed. Power supplies to be used with the CP932 should be carefully tested to ensure compliance
with these ratings.
The following table specifies the ranges for the different input power voltages within which the
board is functional. The CP932 is not guaranteed to function if the board is not operated within
the prescribed limits.
5.3 Backplane Requirements
Backplanes to be used with the CP932 must be adequately specified. The backplane must pro-
vide optimal power distribution for the +3.3 V, +5 V and +12 V power inputs. It is recommended
to use only backplanes which have two power planes for the 3.3 V and +5 V voltages.
Input power connections to the backplane itself should be carefully specified to ensure a mini-
mum 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.
Table 5-1: Absolute Maximum Ratings
SUPPLY VOLTAGE ABSOLUTE MAXIMUM RATINGS
+5 V +5.25 V
Warning!
The maximum permitted voltage indicated in the table above must not be
exceeded. Failure to comply with the above may result in damage to your
board.
Table 5-2: DC Operational Input Voltage Ranges
INPUT SUPPLY
VOLTAGE
ABSOLUTE
RANGE
RECOMMENDED
RANGE
REMARKS
+5 V 4.85 V min. to 5.25 V max. 5.0 V min. to 5.25 V max. Main voltage