Chapter 1 Introduction
© National Instruments Corporation 1-3 VXI-MXI-Express Series User Manual
VXI-MXI-Express Front Panel Features
The VXI-MXI-Express Series controller has the following front panel
features:
• Eight front panel LEDs
–FAILED—Indicates the VXI-MXI-Express Series controller
failed power on diagnostics.
–SYSFAIL—Indicates the VMEbus SYSFAIL line has been
asserted on the backplane.
–ONLINE —Indicates the board is detected and ready for use.
–ACCESS—Indicates a VXI bus master is accessing the
VXI-MXI-Express Series controller.
–CB—Indicates the circuit breaker has tripped from an over current
condition on the +5.0 VDC rail of the VXI-MXI-Express Series
controller.
–ACT—Indicates bus activity on the MXI-Express link.
–PWRGD—Indicates the on board power supplies are in
regulation.
–LINK—Indicates the MXI-Express link connecting the host
computer to the VXI-MXI-Express Series controller has been
established.
• Three front panel SMB connectors for:
– Trigger input
– Trigger output
– CLK10 I/O
• One x1 MXI-Express connector
•TRIG/CLK PORT A(B)—These ports allow the user to daisy chain
the eight TTL backplane triggers and/or CLK10 between multiple
chassis.
•CABLE STATUS LED
Off Indicates no cables are connected to the TRIG/CLK
PORT A(B) ports.
Blinking Red Indicates the cables are connected incorrectly to the
TRIG/CLK PORT A(B) ports.
Solid Green Indicates the cables are connected correctly to the
TRIG/CLK PORT A(B) ports.