Kontron CPCI Backplane - Manual (Page 18)

General CPCI Backplane
Page 4 © 2005 Kontron Modular Computers GmbH ID 24229, Rev. 03
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P R E L I M I N A R Y
Figure 1: Kontron Modular Computers Slot Numbering (both 3U and 6U boards)
1.2 PCI Bus Extension
The PICMG 2.0 CompactPCI Specification restricts the length of a bus segment of a given
CompactPCI backplane to 8 slots or less. This restriction has been determined by extensive
simulation and characterization and guarantees an optmimum operation of PCI-compliant inte-
grated circuits. Since the inception of PCI, design engineers have extended this eight-slot re-
striction by using PCI-to-PCI bridge components. Thanks to the use of such bridge
components, which are put into effect using a special bridge module, the implementation of
CompactPCI backplanes providing more than 8 slots is possible.
1.3 Distinctive Features
The Kontron Modular Computers CompactPCI backplanes can be distinguished according to
the following distinctive features:
• Form factor (height and width)
• Number of slots
• Position of the system slot (primarily to the right)
• Bus resolution
• Bus frequency
• Rear I/O connectivity
• Telephony connectivity
• Hot-swap capability
• Power Supply Connector
• Redundant power supply
Note ...
The actual on board markings of backplane Pn connectors do not necessarily
represent the logical number of the slot.
Physical Slot Numbering
1 2 3 4 5 6 7 8
Logical Slot Numbering
8 7 6 5 4 3 2 1