Power Supply Leds - Lenovo ThinkSystem DW612S System Configuration Manual

Ethernet port 2 activity (RJ-45) LED: When this LED is flashing (green), it indicates that there is an activity
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through the remote management and console (Ethernet) port 2 over the management network.
Ethernet port 1 link (RJ-45) LED: When this LED is lit (green), it indicates that there is an active
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connection through the remote management and console (Ethernet) port 1 to the management network.
Ethernet port 1 activity (RJ-45) LED: When this LED is flashing (green), it indicates that there is an activity
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through the remote management and console (Ethernet) port 1 over the management network.

Power supply LEDs

This topic provides information about various power supply LED status and corresponding action
suggestions.
See the "Specifications" section in Maintenance Manual of the high-density server for information on minimal
configuration required to start the solution.
The power supplies get electrical power from a 200 - 240 V ac power source and convert the ac input into 12
V outputs. The power supplies are capable of autoranging within the input voltage range. There is one
common power domain for the enclosure that distributes power to each of the DWC tray and modules
through the system midplane.
AC redundancy is achieved by distributing the ac power cord connections between independent ac circuits.
Each power supply has internal fans and a controller. The power supply controller can be powered by any
installed power supply that is providing power through the midplane.
Attention: The power supplies contain internal cooling fans. Do not obstruct the fan exhaust vents.
You have to install all of nine power supplies regardless of the type of power supply, the enclosure power
load, or selected enclosure power policy.
The enclosure does not support mixing of low input voltage power supplies with high input voltage power
supplies. For example, if you install a power supply with an input voltage of 100 - 127 V ac in a enclosure that
is powered by 200 - 240 V ac power supplies, the 100 - 127 V power supply will not power on. The same
restriction applies to a enclosure that is powered by 100 - 127 V ac power supplies. If you install a 200 - 240
V ac power supply in a enclosure that is powered by 100 - 127 V ac power supplies, the 200 - 240 V ac
power supply will not power on.
The following illustration shows the LEDs on the power supply:
Figure 5. AC power supply LEDs
ThinkSystem DW612S Neptune DWC Enclosure System Configuration Guide
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