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Switch
(Internal Switch)
Green
Lit
Off
The internal switch is active
One for the whole Hub
The internal switch is inactive
(2) LED
Table 4-1 LED description
8
LED Color Status Description Number of LED
PWR
(Power)
LNK/ACT
(Link/Activity)
100Mbps
COL
(Segment
Collision)
UTIL.
(Segment
Utilization)
Green
Green
Green
Yellow
Green
Lit
Off
Lit
Off
Lit
Off
Flash
Lit
Off
Lit
Power is supplied
One for the whole Hub
No power
A valid link is established
One for each portData packets received
No link is established
This port run at 100Mbps
One for each port
Not connected or run at 10M
Collision detected in this segment
One for 10Mbps
segment and one for
100Mbps segment
No Collision
Indicate network utilization
One set for 10Mbps
segment and one set for
100Mbps segment