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C H A P T E R 1 Intel Express 100BASE-TX Stackable Hub
6
This shows the LED matrix on the Express hub.
Pwr Stat RPS Col Data %
Expansion Slot
1
1
13
2
14
3
15
4
16
5
17
6
18
7
19
8
20
9
21
10
22
11
23
12
Mstr
Stat Enbl
Stat
24
Port Status
Media Adapter
Management
1 5 10 20 35 50
100BASE-T Hub
5897
LED matrix on the Express hub
Type Label Color Meaning
Hub power supply status Pwr Green
Off
Hub is receiving AC power.
Hub is not receiving AC power.
Hub status Stat Green
Amber
Off
Hub is powered, has passed the confidence test, and
is operating normally.
At initial power up, this LED lights to indicate the
hub is running its confidence test. If this LED lights
after the confidence test is performed, it indicates the
hub is not operating normally due to a fan failure, a
hub power supply failure, or a confidence test failure.
Hub is not receiving power.
Not used RPS N/A N/A
Collision
status
Col Amber
Off
A collision event has been detected.
Collisions are not detected on the segment.
Network utilization Data % Blinking
green
Solid green
The
≤
1% LED blinks green to indicate there is traffic
on the segment that is utilizing less than 1% of the
network.
The Data % LEDs light solid green to indicate the
percentage of the network utilization for the Ethernet
segment in a standalone hub or a stack of hubs. These
LEDs operate as a bar graph to provide you with a
continuous indication of the network utilization. For
example, if the 1% and 5% Data LED light green, the
Ethernet segment in that stack of hubs is utilizing 5%
of the network.