11o Mirroring indicator (MIRROR)Indicates the status of the mirroring mode. Refer to theoperating instructions (PDF) for further informationabout the mirroring function.Lights green when the unit is in the mirroring mode.Blinks green when the unit is in the process of the datarecovery.When the indicator lights red, the following is indicated(only when the unit is in the mirroring mode).• One of the hard disks became faulty• Only one hard disk is mounted (One hard disk is notmounted/installed.)• No hard disk is mounted/installed!0 Error indicator (ERROR)Blinks red when an error occurs that may cause thesystem to go down.Blinks orange when an error occurs that will not keepthe unit from running. (e.g. thermal error, cooling fanmalfunction, etc.)!1 USE button (with the indicator)Hold down the button for 2 seconds or more to turnon/off the power of the hard disk.Lights green when the power of the hard disk is on.Blinks orange when the unit is mounting the hard disk,or when the hard disk is in the process of shutdown.Blinks green when the mounted hard disk is unformat-ted.Lights orange when recording is being performed.Blinks red when the disk replacement warning is beingissued.Lights red when the disk space is running out.Refer to the setup instructions (PDF) for further informa-tion about the disk replacement warning and runningout of the disk space.The indicator will go off when the power of the hard diskis off.!2 FORMAT button (with the indicator)Hold down the button for 5 seconds or more to formatthe hard disk.The button will light green when formatting of the harddisk starts (until the formatting of the hard disk is com-plete).The button will light red when formatting of the harddisk or the mirrored data recovery failed.!3 Write protection indicatorIndicates the status of the write protection. Lights greenwhen the write protection is on.!4 Maintenance portUse this port to connect directly with a PC and performmaintenance operations. (For servicing purpose only)Note:When connecting with a PC, use the straight cable.