Status Leds; Figure 2-25: Status Leds (Front Panel); Table 2-18: Status Leds - Advantech sky-8100 User Manual

2.4.1.1 Status LEDs

The SKY-8100 supports an array of status and alarm LEDs on both the front and rear
panels. The LEDs are visible when the front cover is closed as well as when the front
cover is open.

Table 2-18: Status LEDs

Label Color
PWR Green
MNR Amber
MJR Red
CRT Red
SKY-8100 Manual V05 20161229

Figure 2-25: Status LEDs (Front Panel)

Description
Power Alarm
In normal mode, this LED indicates normal operation in the
power subsystem. It will turn off in the case of a failure event,
such as a loss of redundancy.
Minor Alarm
This LED warns that the platform has a minor system fault but
can still continue to operate. This is defined as any non-critical
BMC sensor event being alerted or the chassis intrusion sensor
being triggered.
Major Alarm
This LED is not utilized in Advantech's default configuration. It
is intended for a customer defined function, e.g. to indicate an
application / system software errors.
Critical Alarm
A critical system fault is an error or event that is detected by
the system which has a significant impact to the system. In this
case, the system cannot continue to operate or is operating in
a non redundant power or cooling configuration.
Conditions that trigger this LED include:
Processor (thermal trips, internal errors, and caches)

Memory (single and multi-bit errors, ECC errors)

Temperature (baseboard and processor temperature)

Fan (failure, speed irregularities)

Voltage (standby, baseboard, and processors)

PSU failure

Copyright 2016 Advantech Co. Ltd. All rights reserved. Page 56