Dell S4148U-ON EMC PowerSwitch S4100–ON Series Installation Guide M - Page 14
Table 5. S4100-ON Series LED behavior, S4148U-ON switch I/O-side LEDs
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Figure 13. S4148U-ON switch I/O-side LEDs 1. Unified QSFP28 and QSFP+ port LEDs-Link (right), activity (left) 3. Master LED 5. Power LED 7. Locator LED/System beacon 2. Unified SFP+ and SFP+ port LEDs-Link (right), activity (left) 4. System LED 6. Fan LED 8. Stack ID Figure 14. S4100-ON Series PSU-side LEDs 1. Fan LED 3. PSU LED Table 5. S4100-ON Series LED behavior LED System Status/Health LED Power LED Master LED FAN LED 14 S4100-ON Series switch 2. Link LED 4. Activity LED Description ● Solid green-Normal operation ● Blinking green-Booting ● Solid yellow (amber)-Critical system error ● Blinking yellow-Noncritical system error, fan failure, or power supply failure ● Off-No power ● Solid green-Normal operation ● Solid yellow-POST is in process ● Blinking yellow-Power Supply failure ● Off-Switch is in Stacking Slave mode ● Solid green-Switch is in Stacking Master or Standalone mode ● Off-No power