NEC MH4000 User Manual page 38

A
A Front panel
key lock
B Location of
internal
intrusion
alarm switch
C Location of two
internal power
inter-lock
alarm switches
D Padlock loops
– Environmental
sensors
Figure 2-8. Mechanical Locks and Monitoring
B
POWER
STATUS
DISK
Right
Left
C
Key lock the short front panel door to prevent access to the
power and reset switches. This lock also secures the right-
hand door.
The intrusion alarm switch is present on the SCSI drive bay
door. The switch opens when the drive bay door is opened. An
intrusion alarm signal is transmitted to the system board,
where server management software processes the signal for
security.
The two power inter-lock switches are present on the sides of
the chassis. The switch opens when the side doors are opened.
a power inter-lock signal is transmitted to the system board
controlling a power shut down to the system for safety
Secure the side covers by using padlocks (not provided). The
top cover cannot be removed until the side covers have been
removed.
(Not shown in figure) The system contains sensors to monitor
temperature, voltage, and fan failure.
D
Features
2-23