ZyXEL Communications NAS540, User Manual

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Chapter 1 Getting to Know Your NAS
Cloud Storage User’s Guide
16
1.3 Hard Disks
The NAS has internal hard disk bays. Install SATA (Serial Advanced Technology Attachment) hard
disks. Note that the SATA hard disks are treated as internal or SATA volumes. Any hard disk
connected to a USB port is considered an external or USB volume.
1.4 SD Card
Use up to a 128 GB SDXC card with the front panel SD card slot. The SD card slot works with the
COPY/SYNC button (see Section 1.6 on page 17 for details).
1.5 Power Button
Use the power button on the front panel to turn the NAS on or off.
• Press the power button for one second to turn on the NAS.
HDD White On The hard disk drive is connected properly to the NAS. This LED stays on
white when the hard disk drive is in hibernation if you do not enable sleeping
HDD LED blinking.
Blinking The NAS is saving data to the hard disk drive.
Slow
Blinking Sleeping HDD LED blinking is enabled and the hard disk drive is in
hibernation.
Red On The NAS detected an error on the hard disk drive (like a bad sector for
example). The NAS automatically tries to recover a bad sector, but the LED
stays red until the NAS restarts.
Off The NAS cannot detect a hard disk in the disk bay or the LED is disabled.
COPY White On A USB device is connected to the NAS and the NAS is ready to copy.
Blinking The NAS is copying or synchronizing files.
Red On Copying or synchronizing files to or from the USB or SD failed.
Off No USB device is connected.
LAN1 /
LAN2 Green On The NAS has a successful 10/100 Mbps Ethernet connection.
Blinking The 100M LAN is sending or receiving packets.
Off The NAS does not have a 10/100 Mbps Ethernet connection.
Amber On The NAS has a successful 1000 Mbps Ethernet connection.
Blinking The 1000 M LAN is sending or receiving packets.
Off The NAS does not have a 1000 Mbps Ethernet connection.
Table 1
LEDs (continued)
LED COLOR STATUS DESCRIPTION