NEC N8800-162F User Manual page 44

2-8 General Description
(1) CPU/IO module 0
This is a module with a set of CPU (processor), memory (DIMM), PCI board, cooling
fan unit, and hard disk drive.
(2) Hard disk drive bay
This is the bay to mount the hard disk drive. The number after the numbers in
parentheses indicates a slot number.
(3) UID (Unit ID) switch
This is to switch ON/OFF the UID LED on the front of the device.
When processing the switch once, UID LED lights and it goes off when pressing it
again.
(4) Dump (NMI) switch
Memory dump is executed when pressing the button.
(5) Disk access LED
This LED illuminates in green during accessing the hard disk.
If the hard disk is broken, this LED illuminates in amber. And if the mirror is
broken, this LED blinks in amber. If rebuilding the mirror, the LED
alternately illuminates in green and amber.
(6) Optical disk drive
This device is used to read or write data from the disks such as DVDs and CD-ROMs
(see page 2-30)
(7) System POWER LED
This illuminates in green when one of the powers of the CPU/IO modules is ON. LED
goes off when both powers of CPU/IO module are OFF.
(8) System FAULT LED
When one of the CPU/IO modules has an error, the LED illuminates in amber. Details
can be confirmed by checking EXPRESSSCOPE. The LED illuminates in amber when
it cannot identify which one of the CPU/IO moulds has an error.
(9) System FT LED
This LED displays the device status. The LED illuminates in green when operating
under duplex condition. The LED goes off if it's not duplex. The LED illuminates in
green when executing Active Upgrade.
(10) System ID LED
The system ID LED illuminates in blue on the front bezel if pressing UID switch when
there are multiple devices installed on one rack. This enables to identify the device to
be maintained. This LED blinks in blue when there are device identification requests
remotely.
(11) USB connector
It connects with the device supporting USB interface.
.