English
Diagnosis of LEDs
• This device consists of 13 LEDs
• LED Activity chart: this chart describes LED activity under various conditions.
R: Read
W: Write
S3: PC enters into sleep mode
S4: PC enters into hibernation mode
Normal Mode:
Operation /
Configurations
PWR
1
Power OFF
2
Power ON
3
3.1 No USB
connected
HDD1 inserted
3.2 No USB
connected
HDD2 inserted
3.3 No USB
connected
Both HDDs
inserted
4
4.1 USB connected
No HDD
4.2 USB connected
HDD1 inserted
4.3 USB connected
HDD2 inserted
4.4 USB connected
HDD1/2
inserted
5
5.1 PC enters
Standby,
Hibernate
mode
5.2 PC Power OFF
5.3 USB Cable
Removed
Operation
USB
HDD1
HDD2
•
•
•
•
•
•
•
•
•
•
R/W•
•
•
•
•
R/W•
Power synchronization mode -Power saving
•
•
•
•
•
•
•
•
PC
Clone
button
No USB cable connected
•
•
Normal mode- USB cable connected
•
•
R/W•
•
R/W•
•
•
S3,S4
•
OFF
•
•
-2-
Activities
HDD status
HDD1
HDD2 Normal Power
•
OFF
•
OFF
•
OFF
OFF
•
•
ON
•
ON
•
ON
ON
•
OFF
OFF
•
OFF
OFF
•
OFF
OFF
•
LED Status
HDD1
HDD2
Red
Red
Red
Red
Blue
Blue
Blue
flash
Blue
Blue
flash
Blue
Blue
Blue
flash
flash
Red
Red
Red