2-4 General Description1 Front bezelThe front bezel is a cover protecting the front devices during daily operation. A security key isprovided to lock the cover.2 Key slotInsert the security key into this slot when unlocking the front bezel.3 POWER LED (green)This LED turns green when the power is turned on.4 DISK ACCESS LED (green/amber)This LED is green during access to the internal hard disk drives. The LED turns amber whenany one of the internal hard disk drives fails.5 ACT/LINK LED (green)This LED is on while the system is connected to the network.6 UID (Unit ID) LED (blue)This LED goes on when the UID switch is pressed. (The LED also goes on or blinks whensoftware issues a command.)7 STATUS LED (green/amber) (on the front panel)This LED indicates the server status. The LED is green during normal operation. The LEDturns amber or blinks when the server enters the abnormal state.8 Serial port B (COM B) connectorThe connector is used to connect the server to a device with the serial interface.9 USB connectorThese connectors are used to connect the server to a device with the USB interface.10 Reset switchPress this switch to reset the system. In normal operation, this switch is not used.11 UID (Unit ID) switchPress the UID switch to turn on/off the UID LED. Pressing the switch once turns on the LED.Pressing it again turns it off.12 POWER switchThe POWER switch is used to turn the power of the server ON/OFF. If you press this switchonce, the power is turned on with the POWER LED going on green. If you press the switchagain, the power is turned off with the LED going off. Keep pressing the switch for 4 secondsor more forcibly shuts down the system. This switch can be used as a SLEEP switch if the OSsupports sleep feature. In SLEEP Mode, this LED blinks.13 NMI (DUMP) switchPress this switch to dump system memory. In normal operation, this switch is not used.14 Optical disk driveThe optical disk drive reads data from the inserted disc.14-1 Emergency hole14-2 Access LED14-3 Tray eject button15 Internal USB floppy disk drive (option)The floppy disk drive reads data from the inserted floppy disk.15-1 Access LED15-2 Eject button15-3 Disk slot16 Hard disk drive baysUp to three hard disk drives can be installed in the bays. The last-digit number indicates thechannel number. In the standard configuration, the dummy sponge blocks are installed in allthe bays.17 DISK LED (green/amber)LED on the hard disk drive. Each LED is green during access to the hard disk drive. The LEDturns amber when the hard disk drive fails. The LED blinks green and amber alternatelyduring rebuild processing (in RAID configuration).