Chapter 2
Hardware Configuration and Installation
© National Instruments Corporation
2-15
VXI-AT2000/NI-VXI MS-DOS Getting Started
Front Panel Features
The VXI-MXI has the following front panel features:
•
Three front panel LEDs
–
FAILED LED indicates that the VMEbus SYSFAIL line is asserted.
–
VXI ACCESS LED indicates when the VXI-MXI is accessed from the VXIbus.
–
MXI ACCESS LED indicates when the VXI-MXI is accessed from the MXIbus.
•
MXIbus connector
•
Three SMB connectors
–
Trigger input
–
Trigger output
–
External clock
•
System reset pushbutton
•
INTX connector (if you have a VXI-MXI with the INTX daughter card connection)
Removing the Metal Enclosure
The VXI-MXI is housed in a metal enclosure to improve EMC performance and to provide easy
handling. Because the enclosure includes cutouts to facilitate changes to the switch and jumper
settings, it should not be necessary to remove it under normal circumstances.
Should you find it necessary to open the enclosure, remove the three screws on the top, the three
screws on the bottom, and the three screws on the right side panel of the enclosure.
VXIbus Slot 0
The VXI-MXI is shipped from the factory configured to be installed in Slot 0 of the VXIbus
mainframe. If another device is already in Slot 0, you must decide which device will be the Slot
0 device and reconfigure the other device for Non-Slot 0 use.
Warning:
Do not install a device configured for Slot 0 into another slot without first
reconfiguring it for Non-Slot 0 use. Doing so could result in damage to the
Non-Slot 0 device, the VXIbus backplane, or both.
Figure 2-8 shows the default configuration settings for the VXI-MXI installed as the Slot 0
device.
To configure the VXI-MXI as a Non-Slot 0 device, change slide switches S1 and S8 and jumper
blocks W7 (labeled VME BTO Chain Position on the front panel), and W9 and W10 (labeled
CLK10 Source Select on the front panel) as shown in Figure 2-9.
