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cPCI-MXS64 Technical Reference Manual
3.4.7 Connector Keying
CompactPCI connector support guide lugs to ensure a correct polarized mating. A proper
mating is enhanced by the use of color-coded keys for 3.3V and 5V operation.
Color-coded keys prevent inadvertent installation of a 5V peripheral board in a 3.3V slot.
The cPCI-MXS64 is universal. It does not support coding key. The PCI bus does not
require to be keyed. Backplane connectors must always be keyed according to the signaling
(VIO) level.
Coding Key Colors are defined as follows:
Signaling Voltage
Universal board (5V and 3.3V)
3.4.8 Bus Mastering
The cPCI-MXS64 provides seven pairs of REQ/GNT (0-6) arbitration signals through the
Secondary PCI bus. This means the board is capable of driving up to seven cPCI slots with
PCI Bus Master capabilities.
3.4.9 Connection
To install the cPCI-MXS64 board into a bay, proceed as follows:
1.
Locate the 6U system slot
2.
Remove the front plate of the slot where you intend to insert the cPCI-MXS64.
3.
Ensure the module is properly aligned with the guide-rails and slide it gently until
it touches the backplane connector
WARNING
1.
Some mechanical parts of the guide-rail are fragile (shield contacts
and clips). Do not use force to insert and connect a CompactPCI
module.
2.
If there is any mechanical resistance while you insert a module, first
ensure there is no mechanical obstacle and check for the alignment
of all parts.
3.3V
5V
-48V
3-28
Key Color
Cadmium Yellow
Brilliant Blue
none
Red
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