IBM EN4093R, User Manual

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Table 2. Switch status LEDs
Status LED Description
OK ( ) LED
This green LED is at the bottom left of the switch on the front panel.
v
When this LED is lit, it indicates that the switch is on.
v
When this LED is not lit and the yellow switch error LED is lit, it
indicates a critical alert. If the yellow LED is also not lit, it indicates
that the switch is off.
Location (lighthouse
icon) LED This blue LED is at the bottom middle of the switch on the front
panel.
v This LED helps to identify the location of a failed switch and is the
result of a chassis user action.
Switch error (!) LED This yellow LED is at the bottom right of the switch on the front
panel.
v
When this LED is lit, it indicates a POST failure or critical alert.
Note: When this LED is lit, the system-error LED on the IBM Flex
System chassis is also lit.
v
When this LED is not lit and the green LED is lit, it indicates that
the switch is working correctly. If the green LED is also not lit, it
indicates that the switch is off.
Port status LEDs
The following table provides descriptions of the port status LEDs on the front panel
of the switch.
Table 3. Port status LEDs
Status LED Description
Link, Tx/Rx LEDs
(Ports 1 through 22,
Mgmt) This green LED indicates whether the corresponding port link is up or
down and the status of the link activity for the corresponding port.
v
When this LED is not lit, it indicates that there is no signal on the
corresponding port, or the link is down.
v When this LED is lit, there is an active connection (or link)
between the corresponding port and the device that is using this
connection.
v
When this LED is flashing, the corresponding port is connected
and online, and link activity is occurring on that port.
Chapter 2. Installing and removing the switch module
17