USB One Touch Copy LED
Status
Description
Flashes blue every 0.5
seconds
• A USB device connected to the USB One Touch Copy port is detected.
• A USB device connected to the front USB port is being removed from the
device.
• A USB device connected to the front USB port is being accessed.
Blue
A USB device is detected in the front USB port.
Off
The NAS has finished copying data to or from the USB device connected to the
front USB port.
Audio alerts
Duration
Frequency
Description
Short beep (0.5 seconds) 1
• The NAS is starting up.
• When the reset button is pressed for 3 seconds,
the NAS resets configurations.
• When the reset button is pressed for 15 seconds,
the NAS resets configurations and reboots.
• The operating system was updated.
3
• The NAS data cannot be copied to the external
storage device connected to the USB One Touch
Copy port.
Long beep (1.5 seconds)
3 (every 5 minutes)
• A system fan is not functioning.
• A fan module has been removed.
2
• A disk volume is about to reach its full capacity.
• A disk volume has reached its full capacity.
• The drives are in degraded mode.
• A drive is rebuilding.
• A drive is plugged in or out.
1
• The NAS was powered off by force shutdown
(hardware shutdown).
• The NAS was powered on successfully and is
ready.
TS-AI642 User Guide
Basic Operations
41