Chapter 4 – Installation
18
CPU-71-10 (XPD/RPD/DPD) VMEbus Core 2 Duo Processor Board – User’s Manual
These jumpers are typically found between slots, and when configuring a VMEbus chassis, care must be taken to
correctly determine the slot affected by the jumpers (the slot to the right of the jumpers). The interrupt acknowledge
is a daisy chain from the board acknowledging the interrupt request to the boards that can issue an interrupt request.
The bus grant signals are daisy chains from the system controller, which contains the bus arbiter, to the boards that
can request the bus.
Empty VMEbus slots between boards should have all of these jumpers installed. Any slot containing the XPD
should have all of these jumpers removed. Any VMEbus slots after the last board in the chassis (that is, the board
farthest away from the system controller, which is always in slot 1) do not require these jumpers. For other boards
in the VMEbus chassis, refer to their installation instructions for their jumper requirements.
Once the VMEbus chassis jumpers are installed, insert the XPD into its designated slot. With the XPD ejector
handles inward, firmly push the XPD into the VMEbus connectors on the chassis. Tighten the screws to the outside
of the ejector handles to complete the installation of the XPD in the VMEbus chassis.
4.5
Front Panel Connectors and Reset Switch
The XPD offers front panel connections for two USB ports and two RJ45 connector for 1000BaseTX Ethernet
ports. Install all front panel cables by inserting them into the appropriate connector. COM1 and DVO/VGA cables
can be secured to the XPD by tightening their thumbscrews into the connectors’ jackscrews. USB and Ethernet
mating connectors should snap into place. Mounting hardware for the front panel connectors are isolated from the
XPD’s digital ground. They are continuous with the front panel itself that, in turn, is common with chassis ground.
The XPD contains a recessed reset switch, accessible from the front panel. To reset the XPD, press the reset switch
using a small screwdriver blade or similar implement.
The Ethernet connectors each have a pair of indicator LEDs built in. These two green LEDs offer stats on the
1000BaseTX port provided by the 82571EB Ethernet controller on the XPD.
Link
– Ethernet link is established when on. This LED is to the left (or top when the XPD is held
vertically)
Activity
– Ethernet data is being transmitted from or received by the XPD when on. This LED is to the
right/bottom of the Link LED.