Dell PowerVault 221S Manual de servicio - Página 10
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System Overview : Dell PowerVault 220S and 221S Systems Service Manual
Table 8. Power Supply and Cooling Module LED Indicators
Module Icon
Power supply
Cooling module
Audible Alarm
The primary EMM activates an audible alarm if any of the shelf-fault conditions listed in
occurs, the alarm sounds every 10 seconds.
NOTE:
The audible alarm is disabled by default. To enable the alarm, you must change the default setting using your array management software. For more information, see your
array management software documentation.
NOTE:
When the system is on and a split-bus module is not detected, the audible alarm will sound regardless of whether it is enabled or disabled.
Table 9. Audible Alarm Critical and Noncritical Events
Critical Events
Two or more cooling-module blowers have failed or a cooling module is not installed.
One or more temperature sensors are in critical range (in excess of 50°C [122°F] inside
the box).
The split-bus module is not installed.
NOTE:
It is rare for both EMMs to fail simultaneously. However, if this event occurs, the system cannot issue critical or noncritical event alarms for any system component. If both
power supplies fail simultaneously, the system can issue critical or noncritical event alarms only if 5-V power is available.
Technical Specifications
file:///C|/Users/rishi_sood/Desktop/220s/en/sm/intro.htm[3/7/2013 12:09:13 PM]
LED Indicator
LED Icon Function
Power on (green)
Fault (amber)
AC status (green)
Blower A fault (amber)
Blower B fault (amber)
Table 9
lists critical and noncritical events.
DC output voltages are within specifications.
One of the DC output voltages is not within specifications.
AC input voltage is within specifications regardless of the position of the power switch.
Cooling module blower A has failed.
Cooling module blower B has failed.
Table 1
occur. If a critical event occurs, the alarm sounds continuously. If a noncritical event
Noncritical Events
One power supply has failed.
One cooling-module blower has failed.
One or more temperature sensors are in the warning range.
One EMM has failed.