Embedded Solutions
Page 15
Applications Guide
Interfacing
Some general interfacing guidelines are presented below. Do not hesitate to contact the
factory if you need more assistance.
Installation
The XMC is mounted to the PCIe8LXMCX2CB prior to installation within the chassis.
For best results: with the PCIe bracket installed, install the XMC at an angle so that the
XMC front panel bezel penetrates the PCIe bracket then rotate down to mate with the
XMC [JnX] connectors. The rear slot does not have the bezel interaction and can be
mounted directly.
There are four mounting locations per XMC. Two into the XMC mounting bezel, and
two for the standoffs near the XMC bus connectors.
Start-up
Make sure that the "system" can see your hardware before trying to access it. Many
BIOS will display the PCI devices found at boot up on a "splash screen” with the
VendorID and CardId for the XMC installed and an interrupt level. If the information is
not available from the BIOS then a third party PCI device cataloging tool will be helpful
Watch the system grounds
. All electrically connected equipment should have a fail-
safe common ground that is large enough to handle all current loads without affecting
noise immunity. Power supplies and power consuming loads should all have their own
ground wires back to a common point.
Power all system power supplies from one switch.
Connecting external voltage to
the PCIe8LXMCX2CB when it is not powered can damage it, as well as the rest of the
host system. This problem may be avoided by turning all power supplies on and off at
the same time. This applies more to the XMC’s installed onto the PCIe8LXMCX2CB
than the PCIe8LXMCX2CB itself, and it is smart system design when it can be
achieved.
