Dell EMC PowerSwitch S4100-ON Series - Page 15

3 Master LED 4 System LED
5 Power LED 6 Fan LED
7 Locator LED/System beacon 8 Stack ID
Figure 14. S4100-ON Series PSU-side LEDs
1 Fan LED 2 Link LED
3 PSU LED 4 Activity LED
Table 5. S4100–ON Series LED behavior
LED Description
System Status/Health LED
• Solid green—Normal operation
• Blinking green—Booting
• Solid yellow (amber)—Critical system error
• Blinking yellow—Noncritical system error, fan failure, or power
supply failure
Power LED
• O—No power
• Solid green—Normal operation
• Solid yellow—POST is in process
• Blinking yellow—Power Supply failure
Master LED
• O—Switch is in Stacking Slave mode
• Solid green—Switch is in Stacking Master or Standalone mode
FAN LED
• O—No power
• Solid green—Normal operation; fan powered and running at the
expected RPM
• Solid yellow—Fan failed—including incompatible airow
direction when you insert the PSU or fan trays with diering
airows
PSU LED
• O—No power
• Solid green—Normal operation
• Solid yellow—Power supply critical event causing a shutdown.
• Blinking yellow—PSU warning event; power continues to
operate
S4100–ON Series switch 15