Dell EMC PowerSwitch S5048F-ON Installation Guide December 2019

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LED behavior

The following S5048F-ON switch LED behavior is seen during open networking installation environment (ONIE) operations:

Illustration of the S5048F-ON LEDs. — Figure 1. S5048F-ON LEDs

Table 1. S5048F-ON switch LED behaviorTable listing the S5048F-ON switch 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	Off—No power Solid Green—Normal operation Solid yellow—POST is in process Blinking yellow—Power supply failed
Master LED	Stacking not suported.
FAN LED	Off—No power Solid green—Normal operation; fan powered and running at the expected RPM Solid yellow—Fan failed—including incompatible airflow direction when you insert the PSU or fan trays with differing airflows
PSU LED	Off—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, 1.0Hz—Standby mode Blinking green, 0.5Hz—AC power cord unplugged
LOCATOR LED/System Beacon	Off—Locator function disabled Blinking blue—Locator function enabled
Seven-segment LED	Stacking not supported.
RJ-45 Ethernet LED	Off—no link and no activity detected On—Activity on the port Solid yellow—10MHz activity Solid green—100MHz activiity Blinking green—1GHz activity

Table 2. System management Ethernet port LEDsTable listing the system management Ethernet port LED behavior.
LED	Description
Link LED	Off—No link Solid green—Link operating at a maximum speed, autonegotiated/forced or 1G Solid yellow—Link operating at a lower speed, autonegotiated/forced or 10/100M
Activity LED	Off—No link Flashing green—Port activity

NOTE: : There are four LEDs for each QSFP28 port and a single LED for each native SFP28 port. For each port, 100GbE or 40GbE uses only one LED, 2x50GbE uses two LEDs, and 4x25GbE or 4x10GbE uses all four LEDs.

Table 3. SFP28 port LEDsTable listing the SFP28 port LED behavior.
LED	Description
Link LED	Off—No link Solid green—Link operating at maximum speed, 25G Solid yellow—Link operating at a lower speed, 10G/1G Flashing yellow, 1 second on/off—port beacon
Activity LED	Off—No link Flashing green—port activity for 25G Flashing yellow—Port activity for 10G/1G

Table 4. QSFP28 port LEDsTable listing the QSFP28 port LED behavior.
LED	Description
Link/Activity LED—100G, 40G, or 10G	Off—No link Solid green—Link operating at maximum speed, 100G for QSFP28 port Flashing green—Port activity operating at maximum speed, 100G for QSFP28 ports Solid yellow—Port activity operating at a lower speed, 40G or 10G port Flashing yellow, 1 second on/off—Port beacon
Link/Activity LED—4x25G mode or 4x10G mode	Off—No link Solid green—Link operating at maximum speed, 4x25G port Flashing green—Link activity operating at maximum speed, 4x25G port Solid yellow—Link operating at a lower speed, 4x10G port Flashing yellow, 1 second on/off—Port beacon
Link/Activity LED—2x50G mode	Off—No link Solid yellow—Link operating at a lower speed, 2x50G port Flashing yellow—Port activity at a lower speed, 2x50G port Flashing yellow, 1 second on/off—Port beacon