CURTISS-WRIGHT HARDWARE INSTALLATION
826448 VERSION 5 MARCH 2015 PROPRIETARY 3-15
Table 3.7: Summary of LED Behavior
Location Reference
Designator
Color LED
Purpose/
Function
Behavior during
Normal Operation or
Feature in Use
Behavior during
Abnormal Operation
or Feature Not in Use
Front Panel –
Air Cooled
A0 (DS28-1) Green Processor status
indicator - Node A
core 0
Same as DS37.
ON – Turned on by firmware OFF – Defaults off and
must be turned on by
firmware when the pro-
cessor status is good.
Front Panel –
Air Cooled
A1 (DS28-3) Green Processor status
indicator - Node A
core 1
Same as DS38.
ON – Turned on by firmware OFF – Defaults off and
must be turned on by
firmware when the pro-
cessor status is good.
Front Panel –
Air Cooled
A2 (DS27-1) Green Processor status
indicator - Node A
core 2
Same as DS39.
ON – Turned on by firmware OFF – Defaults off and
must be turned on by
firmware when the pro-
cessor status is good.
Front Panel –
Air Cooled
A3 (DS27-3) Green Processor status
indicator - Node A
core 3
Same as DS40.
ON – Turned on by firmware OFF – Defaults off and
must be turned on by
firmware when the pro-
cessor status is good.
Front Panel –
Air Cooled
B0 (DS25-1) Green Processor status
indicator - Node B
core 0
Same as DS21.
ON – Turned on by firmware OFF – Defaults off and
must be turned on by
firmware when the pro-
cessor status is good.
Front Panel –
Air Cooled
B1 (DS25-3) Green Processor status
indicator - Node B
core 1
Same as DS20.
ON – Turned on by firmware OFF – Defaults off and
must be turned on by
firmware when the pro-
cessor status is good.
Front Panel –
Air Cooled
B2 (DS26-1) Green Processor status
indicator - Node B
core 2
Same as DS19.
ON – Turned on by firmware OFF – Defaults off and
must be turned on by
firmware when the pro-
cessor status is good.
Front Panel –
Air Cooled
B3 (DS26-3) Green Processor status
indicator - Node B
core 3
Same as DS18.
ON – Turned on by firmware OFF – Defaults off and
must be turned on by
firmware when the pro-
cessor status is good.
Front Panel –
Air Cooled
FAIL (DS54) Red Fail LED
Same as DS55.
OFF – Turned off by firm-
ware
ON – Defaults to on by
hardware and must be
turned off by on-board
diagnostic firmware.
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