NEC 5800/180Ra-7 Manuale Utente
System Overview 1-5
System Chassis
The system chassis is an easy-to-expand, fabricated metal structure. The following
subsections describe the system chassis external view, internal view (BSU only), and
the system board set.
subsections describe the system chassis external view, internal view (BSU only), and
the system board set.
External View
Figure 1-3 shows the front chassis features and controls. Figure 1-4 shows the rear
chassis features and controls.
chassis features and controls.
H
I
U
G
J
R S T
Q
A B C D E
F
K
L
M
N
O
P
A – Power switch
Press to turn system DC power on or off.
B – Power LED
When green, power is present in system. When off, power is
turned off or power source is disrupted. See Table 1-1 for a
list and description of the system LED indicators.
turned off or power source is disrupted. See Table 1-1 for a
list and description of the system LED indicators.
C – Status LED
When green the system is OK. See Table 1-1 for a list and
description of the system LED indicators.
description of the system LED indicators.
D – Disk LED
When green, internal disk drives are being accessed. See
Table 1-1 for a list and description of the system LED
indicators.
Table 1-1 for a list and description of the system LED
indicators.
E – Sleep LED
When lit, system is in the sleep (power saving) mode.
F – Sleep switch
Places the system into the sleep (power saving) mode.
(An operating system supporting sleep mode is required.)
(An operating system supporting sleep mode is required.)
G – Removable media bays (2)
Each bay contains one 5.25-inch peripheral device: optional
tape drives, CD-ROM drive, etc.
tape drives, CD-ROM drive, etc.
H – Activity light, diskette drive
When lit, drive is in use.
I – Ejector button, diskette drive
Press to eject diskette.