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Table 3–7
EMU Status Displays (Continued)
Nonoperational Enclosure
Probable Cause 1—Either +5 V dc or 12 V dc out of range. Observe the individual power supply
status LEDs to determine the defective power supply and replace it.
Probable Cause 2—TERMPOWER less than +4.5 V dc on one or more I/O modules. Replace the
I/O modules displaying a TERMPOWER LED O
Single Blower Fault
Operational blowers are running at
high-speed.
Missing Blower Fault
or
Multiple Blower Faults
Operational blowers are running at
high-speed.
Probable Cause 1—A blower is removed. Replace the missing blower.
Probable Cause 2—All blowers in one bank are not operating. Remove and install blowers correctly
within 8 minutes.
Probable Cause 3—Multiple blowers are installed incorrectly. Remove and install blowers correctly
within 8 minutes.
Comment—In this example, one of the following conditions exist in shelf bank 1:
•
A blower is removed.
•
Two or more blowers are not operating.
Failure to replace the missing or defective blowers within 8 minutes might result in the enclosure
entering standby power mode.
Environmental Monitoring Unit
indication.
FF
UltraSCSI RAID Enclosure 3–19
8
7
6
5
4
3
2
1
CXO5780A
8
7
6
5
4
3
2
1
CXO5781A
8
7
6
5
4
3
2
1
CXO5782A
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