ZyXEL Communications NSA-220 Plus User Manual page 24

Chapter 1 Getting to Know Your NSA
This table describes the NSA's LEDs.
Table 1 LEDs
LED
POWER
HDD1/
HDD2
SYS
LAN
COPY/
SYNC
A. The HDD1 and HDD2 LEDs are dual-color (green and red). The green LED is normally on when you have a hard
disk installed. If the NSA detects an error on the disk, the disk's connection comes loose, or the disk fails, the red
LED also comes on. Since the green LED still stays on, the color appears to be orange. If the NSA is no longer
able to detect a hard disk in the disk bay, the green LED turns off and the LED appears as red.
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COLOR STATUS DESCRIPTION
Blue On The NSA is turned on and receiving power.
Off The NSA is turned off.
Green On The hard disk drive is connected properly to the NSA.
Blinking The NSA is saving data to the hard disk drive.
A
Orange On The NSA detected an error on the hard disk drive (like a
bad sector for example). The NSA automatically tries to
recover a bad sector, but the LED stays orange until the
NSA restarts.
Blinking The hard disk drive connection came loose or the NSA
detected an error on the hard disk drive (like a bad sector
for example) and is saving data to the hard disk drive.
Red On The hard disk drive has failed and the NSA can no longer
detect it.
Off The NSA cannot detect a hard disk in the disk bay.
Green On The NSA has fully started and is operating normally.
Blinking The NSA is starting up.
Red On The NSA has failed.
Green On The NSA has a successful 10/100 Mbps Ethernet
connection.
Blinking The 100M LAN is sending or receiving packets.
Off The NSA does not have a 10/100 Mbps Ethernet
connection.
Yellow On The NSA has a successful 1000 Mbps Ethernet
connection.
Blinking The 1000 M LAN is sending or receiving packets.
Off The NSA does not have a 1000 Mbps Ethernet
connection.
Green On A USB device is connected to the NSA.
Blinking The NSA is copying or synchronizing files to or from the
USB device.
Red On Copying or synchronizing files to or from the USB device
failed.
Off No USB device is connected.
NSA-220 Plus User's Guide