Name: Dell S4148F-ON Series
Brand: Dell
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Figure 7. S4100-ON Series PSU-side LEDs

1 Fan LED 2 Link LED

3 PSU LED 4 Activity LED

Table 3. S4100–ON Series LED behavior

LED Description

System Status/Health LED

• Solid green—Normal operation

• Blinking green—Booting

• Solid yellow—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

• Blinking green, 1.0 Hz—Standby mode

• Blinking green, 0.5 Hz—Ac power cord unplugged

Locator LED/System Beacon

• O—Locator function is disabled

S4100–ON Series switch 11

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Dell S4148F-ON Series Specifications

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