Status Description
O • The network connection is operating at 10 Mbps.
• There is no network connection.
2.5 Gigabit Ethernet Activity LED
Status Description
Orange A network connection has been established.
Flashes orange The device is being accessed from the network.
O There is no network connection.
Expansion LED
Status Description
Blue An expansion unit is connected.
O No expansion unit has been detected.
Redundant Power Supply LED
Status Description
Green The power supply unit is connected to a power source, and the device is
powered on.
Flashes green The power supply unit is connected to a power source, and the device is
powered o.
Orange • The power supply unit is disconnected from a power source, but a parallel
power supply unit is connected to a power source.
• The power supply unit has shut down due to one of the following:
• The power supply unit failed.
• OCP was activated.
• OVP was activated.
• The fan failed.
Flashes orange • The temperature is too high.
• The power is too strong.
• The current is too high.
• The fan is too slow.
Orange for a few seconds
and then o
The power supply unit has been disconnected from a power source, while no
parallel power supply unit is connected to a power source.
O All power supply units are disconnected from a power source.
TS-855eU User Guide
Basic Operations 48
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