Instruction Manual
2
SAT2520U2ER
HDD-1 Access & Failure LED
Green: HDD-1 working. Red: HDD-1 failed.
Green/Red twin lights blinking means that RAID(1) is being built,
or rebuilt.
HDD-0 Access & Failure LED
Green: HDD-0 working. Red: HDD-0 failed.
Green/Red twin lights blinking means RAID(1) is being built, or
rebuilt.
System Ready/Backup LED
Green: System ready. If there is no indication, the system or hard
drive health may have a problem.
Red : Red blinking means data backup is in operation. (optional
function)
Backup Button
Change Mode Button
HDD Eject Buttons
Power Switch
DC Input (5V)
RAID Mode
Configuration Switch
Mini USB Switch
eSATA Port
HDD-0 LED
HDD-1 LED
System Ready/
Backup LED
