Manual

EMU indicator di
splays
The EMU status indicators are located above the alphanumeric display. See Figure 17.Theseindicators
present the same information as those on the front, lower right corner of the enclosure.
You can determine the EMU and enclosure status using the information in EMU LED displays table.
Table 15 EMU status indications
EMU indicator
(green)
Power indicator
(green)
Fault indicator
(amber)
Status and recommended actions
Flashing Flashing Flashing
The EMU Locate function is active. This
display has precedence over all others.
Fault conditions cannot be displayed when
theLocatefunctionisactive.
Flashing
On
Off
The EMU is operational. The enclosure
power (both +5 VDC and +12 VDC) is
present and correct. There are no enclosure
faults.
Flashing
On On
The EMU is operational. There is an
enclosure fault. Check the alphanumeric
display error code for information about
the problem.
Flashing
Off Off
The EMU is operational. This display may
be present when power is initially applied
to the enclosure. Note: When the + 5 VDC
is incorrect, all the indicators are off.
On On
Off There is an EMU fault. There is no enclosure
fault.
Off
On
Off There is an EMU fault. There is no enclosure
fault.
Off Off Off There is an enclosure fault. Either +5 VD C
is incorrect, or both +5 VDC and +12 VDC
are incorrect. Other error conditions may
exist.
Using the alphanumeric display
The two-character alphanumeric display is located at the top of the EMU (see Figure 17). This
seven-segment display provides information about multiple enclosure functions. The push buttons control
the data displayed or entered.
Alphanumeric display description
The top-level, two-character alphanumeric display (En, Li, rG, Au, and Er), is the display group. The
function of the other displays is display-group dependent. The default display is the enclosure number, a
decimal number in the range 00 through 14. The push but tons allow you to select the alphanumeric
display or to enter data.
• The bot tom push b ut ton sequentially moves between groups and selects a display group .
See EMU display groups for a description of these display groups.
• The top push button moves between the levels within a display group (see 2, Figure 17).
Display groups
When you press and release the bottom push button, the alphanumeric display selects a different display
group. EMU display groups d escribes the display groups.
54
Enterprise Virtual Array hardware components