LEDs on the DC Power Supplies Used in QFX5120 Switches

Figure 1 shows the LED on the DC power supply for QFX5120-32C switches. Figure 2 shows the LEDs on the DC power supply for QFX5120-48T, QFX5120-48Y, and QFX5120-48YM switches.

Table 1 describes the LED on the DC power supply for QFX5120-32C switches.

Table 1: LED on the DC Power Supply for QFX5120-32C Switches

Color	State	Description
Green	On steadily	The power supply is sending out power correctly.
Green	Blinking	The power supply is in standby mode and is receiving power at +5 V.
Alternating red/green	Blinking	Power supply warning. Check the logs for related messages.
Red	On steadily	An error is detected in the power supply. Replace the power supply as soon as possible. To maintain proper airflow through the chassis, leave the power supply installed in the chassis until you are ready to replace it.
Red	Blinking	The internal fan in the power supply has failed. Replace the power supply as soon as possible. To maintain proper airflow through the chassis, leave the power supply installed in the chassis until you are ready to replace it.
Unlit	Unlit	The power supply is disconnected from power, or the power supply is not receiving power.

LEDs
on the DC Power Supply for QFX5120-48T, QFX5120-48Y, and QFX5120-48YM
Switches

Caution

The V+ terminals are shunted internally together, as are the V- terminals. You can wire the same polarity terminal together from the same source to provide an additional current path in a higher power chassis. Do not connect the terminals to different sources.

Table 2 describes the LEDs on the DC power supplies for QFX5120-48T, QFX5120-48Y, and QFX5120-48YM switches.

Table 2: LEDs on the DC Power Supplies for QFX5120-48T, QFX5120-48Y, and QFX5120-48YM Switches

LED Label	Color	State	Description
`IN`	Green	On steadily	The power supply is receiving power.
`IN`	Unlit	Unlit	The power supply is disconnected from power, or the power supply is not receiving power.
`OUT`	Green	On steadily	The power supply is sending out power correctly.
`OUT`	Unlit	Unlit	The power supply is disconnected from power, or the power supply is not sending out power correctly.
`!` (Fault)	Amber	On steadily	An error is detected in the power supply. Replace the power supply as soon as possible. To maintain proper airflow through the chassis, leave the power supply installed in the chassis until you are ready to replace it.

1 — In LED (labeled `IN`)	3 — Fault LED (labeled `!`)
2 — Out LED (labeled `OUT`)