Dell S4048-ON EMC PowerSwitch Installation Guide March 2021 - Page 9

LED behavior, Table 1. S4048-ON LED behavior - stacking

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LED behavior The following S4048-ON switch LED behavior is seen during open networking installation environment (ONIE) operations: Figure 5. S4048-ON LEDs 1. Master LED 2. System LED 3. Power LED 4. Fan LED 5. Locator LED 6. SFP+ link/activity LEDs 7. Stack LED 8. USB port LED 9. QSFP+ link/activity LEDs Table 1. S4048-ON LED behavior LED System Status/Health LED Power LED MASTER LED FAN LED PSU LED Description ● Solid green-Normal operation ● Flashing green-Booting ● Solid amber-Critical system error ● Flashing amber-Non-critical system error, fan failure, or power supply failure ● Off-No power ● Solid Green-Normal ● Solid amber-POST is in process ● Flashing amber-Power supply failed ● Off-Switch is in Stacking Slave mode ● Solid green-System is in Stacking Master or Standalone mode ● Solid green-fan powered and running at the expected RPM ● Solid amber-fan failed including incompatible airflow direction when you insert the PSU or fan trays with differing airflows ● Solid green-Normal operation ● Solid amber-Power supply critical event causing a shutdown The S4048-ON switch 9

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LED behavior
The following S4048–ON switch LED behavior is seen during open networking installation environment (ONIE) operations:
Figure 5. S4048–ON LEDs
1.
Master LED
2.
System LED
3.
Power LED
4.
Fan LED
5.
Locator LED
6.
SFP+ link/activity LEDs
7.
Stack LED
8.
USB port LED
9.
QSFP+ link/activity LEDs
Table 1. S4048–ON LED behavior
LED
Description
System Status/Health LED
●
Solid green—Normal operation
●
Flashing green—Booting
●
Solid amber—Critical system error
●
Flashing amber—Non-critical system error, fan failure, or
power supply failure
Power LED
●
Off—No power
●
Solid Green—Normal
●
Solid amber—POST is in process
●
Flashing amber—Power supply failed
MASTER LED
●
Off—Switch is in Stacking Slave mode
●
Solid green—System is in Stacking Master or Standalone
mode
FAN LED
●
Solid green—fan powered and running at the expected
RPM
●
Solid amber—fan failed including incompatible airflow
direction when you insert the PSU or fan trays with
differing airflows
PSU LED
●
Solid green—Normal operation
●
Solid amber—Power supply critical event causing a
shutdown
The S4048–ON switch
9