APC AP9475 - Manuale (Pagina 17)

13 InfraStruXure Central Installation Manual
Standard model (front)
Item Function
 DVD Drive Allows CD/DVD-based updates for software and firmware. (Not
available on the Basic model)
 Diagnostic
Indicators The four diagnostics indicators on the system front panel display
error codes during system startup.
 Power-on
Indicator,
Power Button The power-on indicator lights when the system power is on. The
power-on indicator blinks when the system is not turned on but
power is available. The power button controls the power supply
output to the system.
 NMI button The NMI button is used to troubleshoot software and device driver
errors when using certain operating systems. This button can be
pressed using the end of a paper clip. Use this button only if
directed to do so by qualified support personnel.
 USB Ports (2) Used to connect USB 2.0-compliant devices to the system.
 HDD LED Hard disk drive LED. When this LED is amber, the disk is being
accessed.
 Monitor VGA monitor port.
 System
Identification
Button The identification buttons on the front and back panels can be used
to locate a particular system within a rack. When one of these
buttons is pushed, the blue system status indicator on the front and
back blinks until one of the buttons is pushed again.