Kontron CPCI Generic backplane - Manual (Page 18)

General CPCI Backplane
Page 4 © 2002 PEP Modular Computers GmbH ID 24229, Rev. 01
1.2 PCB Form Factor
The size of PEP Modular Computers backplanes is based upon the Eurocard industry stan-
dard and depends on their height format (3U/6U), their number of slots and power supply unit.
1.3 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
integrated circuits. Since the inception of PCI, design engineers have extended this eight-slot
restriction by using PCI-to-PCI bridge components. Thanks to the use of such bridge compo-
nents, which are put into effect on a special bridge module, the implementation of Compact-
PCI backplanes providing more than 8 slots is possible.
1.4 Distinctive Features
The PEP Modular Computers CompactPCI backplanes can be distinguished according to the
following distinctive features:
• Form factor (height)
• Dimensions
• Number of slots
• Bus resolution
• Bus frequency
• Rear I/O connectivity
• Hot-swap capability
• Power Supply Connector
• Redundant power supply
• Flexible grounding option
• Fan connector
• Drive connector
• Power LED Connector
• PS-ON Connector
• Reset function connector
Table 1: PCB Form Factor [mm]
Slot Number/
PSU
3U 6U
Faston/M4
DIN M-
Series
ATX Faston/M4
DIN M-
Series
ATX
4-Slot 80.28*128.7 100.7*128.7 — — — —
6-Slot — 120.7*128.7 131.5*128.7 — — —
8-Slot — 197.12*128.7 — — 222.52*262.05 —
11-Slot — 283.0*128.7 — — — —