Oracle Vacuum Cleaner CPU-56T User Manual

All four LEDs available at the front panel are multi−purpose LEDs. Depending on the
values contained in the LED control registers 1 to 4, they indicate either the board status
or different network activities. Furthermore, all LEDs can be operated in user LED
mode.

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 For details about the LED control registers, refer to chapter
Maps and

Registers".

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Table 11:

 Description of Front Panel LEDs

LED

Description

1

Board Status (default)
Red: Board reset
Weak red (on pressing the RST key): Board abort
Weak red (during operation): 12V power supply on VME backplane not within its
limits
Green: Board running
Blinking red/weak red: No PCI activity within last two seconds
Blinking green: No boot code found
Blinking weak red: 5V power supply on VME backplane not within its limit
IDE Activity
Depending on LED control register 1 settings, the LED indicates the activity of IDE 1
or IDE 2.

a

Ethernet Activity
Depending on LED control register 1 settings, the LED indicates activity of Ethernet
interfaces 1 to 4 or a combination of these
User−LED Mode
Via LED control register 1, the LED can be programmed to be OFF, green or red.

2

User−LED Mode (default)
Via LED control register 2 the LED can be programmed to be red, green or OFF.
Furthermore it can be programmed to be blinking green or blinking red with
different blinking frequencies. By default, the LED is OFF.

a

Ethernet Activity
Depending on LED control register 2 settings, the LED indicates activity of Ethernet
interfaces 1 to 4 or a combination of these