Kontron CPCI Generic backplane - Manual (Page 27)

CPCI Backplane General
ID 24229, Rev. 01 © 2002 PEP Modular Computers GmbH Page 13
3.6 Flexible Grounding Option
With certain backplane types it is possible to select electrical isolation or connection between
the bus GND and the backpanel support PE (rack), thanks to the fact that every second fas-
tening hole of backplanes is non-conducting. If only these fastening holes are used, there is
no electrical connection between GND and PE on the system bus. If additional holes are
used, a multi-point connection is created such as may be required for EMI protection pur-
poses.
3.7 Rack Dividers
3U boards may be used in a 6U rack. If one or two 3U backplanes are used, a middle bar is
used to hold the 3U boards in place. If the 3U boards are installed on a 6U backplane, a split
kit must be used in place of the backplane’s P3 connector(s). For further details on split kit and
middle bar separation, please refer to the Racks chapter of this manual.