IBM 8271 Nways F12 User Manual page 27

LED behavior
Table 1-1
LED Color
*
Port Status LEDs
Packet Yellow
Off
Status Green
Green flashing
Off
Expansion Module Port Status LEDs
Packet Yellow
Off
Status Yellow
Yellow flashing
Off
Unit LEDs
1 – 8 Green
1 – 8 Off
Power/Self Test LED
Green
Green flashing
Yellow
Off
* If your Switch has 24 10BASE-T/100BASE-TX ports, these ports are numbered 1 to 24. If your
Switch has 12 10BASE-T/100BASE-TX ports, these ports are numbered 1 to 12. For both
models, ports supplied through an Expansion Module are numbered sequentially from the last
fixed port on the front of the unit.
Switch — Front View Detail
Indicates
Packets are being transmitted/received on the
port.
No packets are being transmitted/received on the
port.
A link is present, and the port is enabled.
A link is present, but the port is disabled.
No link is present.
Packets are being transmitted/received on the
Expansion Module or Matrix Module port(s).
No packets are being transmitted/received on the
Expansion Module or Matrix Module port(s).
A valid Expansion Module or Matrix Module is
installed in the Switch.
An unrecognized Expansion Module or Matrix
Module is installed in the Switch.
No Expansion Module or Matrix Module is
installed in the Switch.
Indicates the position of the Switch in the stack
and that a link is present. Note that although
there are eight LEDs, only four Switch units can
be stacked at present.
The Switch is stand-alone.
The Switch is powered on.
The Switch is either downloading software or is
initializing (which includes running a Power On
Self Test).
The Switch has failed its Power On Self Test.
The Switch is not receiving power.
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