Led Indicators For Power Voltage Status - Advantech ACP-5260 User Manual

When the system power is on, the PWR LED is always GREEN.
When the PWR LED is RED, it indicates a redundant power supply module failure. To
stop the alarm beep, press the Alarm Reset button. Examine the redundant power
supply module right away and replace the failed module with a good one.
When the FAN LED is RED, it indicates a failed cooling fan, and the alarm is also
activated. To stop the alarm beep, press the Alarm Reset button and then replace the
failed fan with a good one immediately.
If the TEMP LED is RED, it means that the inside of the chassis is overheated. An
audible alarm will be activated. To stop the alarm beep, press the Alarm Reset but-
ton. Inspect the fan filter and the rear section of the chassis immediately. Make sure
the airflow inside the chassis is smooth and not blocked by dust or anything else.
3.1.3

LED Indicators for Power Voltage Status

The following table is the individual LED which indicates the status of the backplane
voltage signals.
Table 3.2: LED Indicators for Power Voltage Status
LED
+3.3 V
+5 V
+12 V
-5 V
-12 V
When an LED fails to light up, it means there is a problem with one of the voltage sig-
nals. Please check that the power supply connector is properly attached to the back-
plane. If the problem persists, consult with an experienced technician.
Description LED on
+3.3 V signal Normal
+5 V signal Normal
+12 V signal Normal
-5 V signal Normal
-12 V signal Normal
15
LED off
Abnormal
Abnormal
Abnormal
Abnormal
Abnormal
ACP-5260 User Manual