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Switch Status LEDs
Port Status LEDs
© Copyright Lenovo 2018
The following table provides descriptions of the switch status LEDs on the front
panel of the switch.
Table 3.
System status LEDs behavior
LED
State
‐ Power
Steady green
Off
‐ Locator
Steady blue
Off
‐ Error
Steady yellow
Off
The following table provides descriptions of the port status LEDs on the front
panel of the switch.
Table 4.
System status LEDs behavior
LED
State
Link
Steady green
Off
Tx/Rx
Flashing green
Off
Functional Meaning
When lit, this LED indicates that the switch is on.
When this LED is off and the yellow Error LED is
lit, it indicates a critical alert.
If both the Power and Error LEDs are off, it indi‐
cates that the switch is off.
When prompted by a user action in the CMM, this
LED is lit to help identify the location of the
switch.
The switch has not received a user‐prompted
locator command from the CMM.
When lit, this LED indicates a POST failure or
critical alert. As a result, the system‐error LED on
the Lenovo Flex System chassis is also lit.
When this LED is off and the green Power LED is
lit, it indicates that the switch is working correctly.
If both the Power and Error LEDs are off, it indi‐
cates that the switch is off.
Functional Meaning
A connection (or link) is established between the
corresponding port and the attached device.
There is no signal on the corresponding port, or
the link is down.
The corresponding port link is transmitting and/or
receiving.
There is currently no traffic on the port.
Chapter 2: Installing and Removing the NE2552E
35
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