Lenovo ThinkSystem NE0152T, Installation Manual

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© Copyright Lenovo 2018 Chapter 2: Switch Components
29
Power LEDs
On the front of the switch, the Power LED on the management panel indicates the
general status of the power supplies. The LED flashes when only one power cord is
connected, and is steady when both power cords are connected (see
“System Status
LEDs” on page 23 ).
Additional LED indicators are located on the rear panel of the switch, on the
individual power supply modules. The following table describes the power supply
module LED behavior.
Table 7.
Power supply module status LED behavior
LED State Functional Meaning
Power
Off No AC power for all power supply modules.
Flashing Green Power supply has AC power and is in standby mode.
Solid Green Power supply is on and operational.
Flashing Amber No AC power for this power supply module.
Solid Amber Power supply shutdown from critical event: power
supply failure, over-voltage, over-current, AC cord
unplugged, over-temperature, power supply fan failure.
Flashing Green
and Amber Power supply warning event (continuing operation):
high temperature, high power, high current, or slow
power supply fan.