Setup Guide

Table Of Contents
LED behavior
The following S4048ON switch LED behavior is seen during open networking installation environment (ONIE) operations:
Figure 5. S4048ON 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. S4048ON LED behavior
LED Description
System Status/Health LED
Solid greenNormal operation
Flashing greenBooting
Solid amberCritical system error
Flashing amberNon-critical system error, fan failure, or
power supply failure
Power LED
OffNo power
Solid GreenNormal
Solid amberPOST is in process
Flashing amberPower supply failed
MASTER LED
OffSwitch is in Stacking Slave mode
Solid greenSystem is in Stacking Master or Standalone
mode
FAN LED
Solid greenfan powered and running at the expected
RPM
Solid amberfan failed including incompatible airflow
direction when you insert the PSU or fan trays with
differing airflows
PSU LED
Solid greenNormal operation
Solid amberPower supply critical event causing a
shutdown
The S4048ON switch 9