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Installing the Hub
Interpreting LED Status
Interpreting Hub Status LEDs
The hub status LEDs indicate whether the hub is functioning properly. For
further details on error conditions indicated by the Status LEDs, see chapter
2, "Troubleshooting".
SYSTEM
(Power)
ACT
(Activity)
(green)
FLT
(Fault)
(Orange)
SEC
(Security)
(Orange)
RPS
(RPS)
(green)
COL
(Collision)
(orange)
1-12
LED
State
On
The hub is receiving power.
Off
The hub is not receiving power.
(green)
Flickering
ON while a packet is being transmitted. Normally, the LED appears
to flicker. In heavy traffic, it may appear on all the time.
On
An error has been detected on the hub.
Off
No error has been detected on the hub.
Flash
Flashes simultaneously with port LEDs, indicating the port is
partitioned.
On
A security violation has occurred.
Off
Hub security has not been violated.
Flash
Flashes simultaneously with port LEDs, indicating the port had a
security violation.
On
The RPS is providing power.
Off
The RPS is not providing power.
Flickering
This LED is on while a collision is detected. If it appears on
continuously (with no flicker), it is a possible indicator of a network
fault or an improperly terminated cable.
Meaning of LED
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