Identity Led (Blue); 5U Enclosure Ops Panel; System Power On/Standby Led (Green/Amber) - Dell EMC ME4 Series Owner's Manual

Identity LED (blue)

When activated, the Identity LED blinks at a rate of 1 second on, 1 second off to easily locate the chassis within a data center. The locate
function can be enabled or disabled through SES. Pressing the button toggles the state of the LED. Setting the enclosure ID using the
System ID button is not supported by the firmware.

5U enclosure Ops panel

The front of the enclosure has an Ops panel located on the left ear flange of the 5U chassis as shown in the following figure. The Ops panel
is an integral part of the chassis CRU, and is not replaceable on-site.
Figure 29. LEDs: Ops panel—5U enclosure front panel
Table 5. Ops panel functions (see left ear on 5U front panel)
No. Indicator
1 Unit Identification Display (UID)
2 System Power On/Standby
3 Module Fault
4 Logical Status
5 Top Drawer Fault
6 Bottom Drawer Fault
Unit identification display
The UID is a dual seven-segment display that shows the numerical position of the enclosure in the cabling sequence. This is also called the
enclosure ID. The controller enclosure ID is 0.

System Power On/Standby LED (green/amber)

LED is amber when only the standby power is available (non-operational). LED is green when system power is available (operational).
24 Storage system hardware
Status
Green (seven-segment display: enclosure sequence)
Constant green: positive indication
Constant amber: system in standby (not operational)
Constant or blinking amber: fault present
Constant or blinking amber: fault present
Constant or blinking amber: fault present in drive, cable, or sideplane
Constant or blinking amber: fault present in drive, cable, or sideplane