ZyXEL NAS540 User Guide - Page 363
Product Specifications
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CHAPTER 22 Product Specifications See also Chapter 1 on page 15 for a general overview of the key features. 22.1 LEDs This table describes the NAS's LEDs. Table 130 LEDs LED COLOR STATUS POWER White On Off SYSTEM White On Blinking DESCRIPTION The NAS is turned on and receiving power. The NAS is turned off. The NAS has fully started and is operating normally. The NAS is starting up or upgrading the firmware. HDD Red On White On Blinking Slow Blinking Red On COPY LAN1 / LAN2 White Red Green Amber Off On Blinking On Off On Blinking Off On Blinking Off Note: Do not turn off the NAS while it is upgrading the firmware or you may render it unusable. The NAS has a system error. 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. The NAS is saving data to the hard disk drive. Sleeping HDD LED blinking is enabled and the hard disk drive is in hibernation. 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. The NAS cannot detect a hard disk in the disk bay or the LED is disabled. A USB device is connected to the NAS and the NAS is ready to copy. The NAS is copying or synchronizing files. Copying or synchronizing files to or from the USB or SD failed. No USB device is connected. The NAS has a successful 10/100 Mbps Ethernet connection. The 100M LAN is sending or receiving packets. The NAS does not have a 10/100 Mbps Ethernet connection. The NAS has a successful 1000 Mbps Ethernet connection. The 1000 M LAN is sending or receiving packets. The NAS does not have a 1000 Mbps Ethernet connection. NAS540 User's Guide 363