Dell PowerVault MD1220 - Manual (Page 17)

About Your Enclosure
17
The alarm sounds every 10 seconds if:
• One power supply has failed.
• One cooling fan has failed.
• One or more temperature sensors are in warning range.
• One EMM has failed.
NOTE:
The alarm is disabled by default. To enable the alarm, you must change the
default setting in Server Administrator. For more information, see the Server
Administrator documentation at
support.dell.com/manuals.
Power Indicator Codes
Figure 1-7. Power Indicator Codes
Item LED Type Icon Description
1 DC power The LED lights green when the DC
output voltage is within the limit.
If this LED is off, it indicates that the
DC output voltages are not within the
limit.
1
2
3
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