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Fast Ethernet Stackable Hubs User's Guide
Hub State Indicators
♦ Power Indicator
This indicator lights green when the hub is receiving power;
otherwise, it is off.
♦ 100M Activity
This indicators indicate data packet on the respective 100Mbps
Fast Ethernet segments will blink green.
♦ 100M Collision
This indicators indicate data collisions on the respective
100Mbps Fast Ethernet segments of the hub. (If several hubs
are stacked or linked together, all of them should detect and
indicate the same collision, since collisions span the entire net-
work segment.) Whenever a collision is detected, the respective
COL indicator will briefly blink amber.
100BASE-FX Module Indicators
The FX Link/Rx, indicate a good link to a module installed.
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Understanding Indicators
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