16
Installation
CPU Status LED
The Status LED always shows the most severe detected error status that it is configured to
display (see
, on page 80), and in the table above error severity
increases from top to bottom, with green representing no error/disabled, and flashing red
the most severe error.
If the Status LED is flashing orange, it means that the card is selected for local control using
the Densité frame’s control panel, or that the card is booting up. See
, on page 27 for details.
CPU Status LED
Monitors the status of the CPU operation.
Boot LED
Monitors the status of the system firmware.
Power LED
Monitors the status of the power on board the KMV-3901/3911 card.
CPU Status LED
Color
Meaning
Green
OK
Red
CPU kernel error
Flashing red
Upgrading
Boot LED Color
Meaning
Flashing green
System OK (
heartbeat
signal)
Steady red
Beginning of start-up process (normal)
Continuous - error
Steady green
or OFF
Software not running
Power LED Color Meaning
Green
OK
Red
Error detected
This is a latched error and will remain displayed until the next reboot, even
if the error was a brief glitch and the supply is OK.
If the LED remains red after a restart, there is or has been a fault in the
power source.