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3
LED Indicators
This chapter explains how to interpret the front panel LED indicators on
NetStacker II dual speed hubs. There are no LEDs on the rear panel.
The LEDs are used to facilitate monitoring and troubleshooting. These LEDs
are:
❑ Power
❑ Collision Indicators
❑ Hub ID Number
❑ Port Link Activity indicators
The front panel LEDs of the 12 port and 24 port hubs are shown in
Figure 3-1 and Figure 3-2.
Figure 3-1 12 port hub LEDs
100M
10M
COL
Power
NetStacker II
Hub ID Number
1
23
4
5
6
7
8
9
10 11
12
1
23
4
5
6
7
8
100Mbps
10Mbps
Power
Collision
10 Mbps
Hub ID
100 Mbps
SHBBook Page 1 Wednesday, March 3, 1999 8:03 PM