ADLINK PXIS-2690P - Manual (Page 34)

26 Installation
3.10 Monitoring the System
Light Emitting Diodes (LEDs) on the front panel tell you the power
status and hard disk drive data read/write activity. Refer to
Table 3-1 for details.
LED Function Color Status Indication
Power Power indication Green
ON The system is on
OFF
The system is off or in
standby power mode
HDD
Data read/write
activity
Red
OFF
The system is off, on
standby power, or has
no HDD activity
Flashing
Data is read/written
from/to the HDD
Table 3-1: LED Indications