LED
Status
Description
System power
Blue
The controller is on.
Off
The controller is off.
System Status
Green
The device is ready.
Red
• The power supply is not functioning.
• The system fan is not functioning.
• The system temperature is too high.
• The disk temperature is too high.
• The power supply unit is unplugged.
Off
• All drives are in standby mode.
• The device is powered off.
Drive
Green
• The JBOD enclosure is powered on.
• The drive can be accessed.
Flashes green
The drive is being accessed.
Red
A drive read/write error occurred.
Flashes red 5 times per
second
The drive is being located in the operating system.
Off
No drive was detected.
Front Panel OLED Display
The OLED display shows the status of the controllers and main components.
No.
Component
No.
Component
1
Controller power status
4
Enclosure ID
2
Fan status
5
Temperature status
QNAP JBOD Enclosure - TL-R1620Sdc User Guide
Product Overview
8