Cisco Systems 116T manual System LED Description, Color System Status, COL LED Description

Front Panel Description

SYSTEM LED

The system status LED shows whether the FastHub is powered up and provides an indication of any problem with the main system board of the FastHub (see Table 1-3).

Note The system status LED and RPS LED are used together to isolate internal power supply or RPS problems. See the “Verifying and Troubleshooting Your Installation” section in the “Installing the FastHub” chapter for detailed information.

Table 1-3	SYSTEM LED Description
Color	System Status
Off	FastHub powered down.
Solid green	FastHub powered up and operational; no power problems.
Solid amber	FastHub powered up but not operational; problem related to the main system
	board of the FastHub (not internal power supply or RPS).

COL LED

The group collision LED shows the frequency of collisions for all ports on the FastHub (see Table 1-4). The LED flashes amber if one or more ports on the FastHub are involved in a collision.

Note The flash rate of the group collision LED increases with an increase in collisions; a high number of collisions causes the LED to appear solid amber.

Table 1-4	COL LED Description
Color	System Status
Off	No collisions
Flashing amber	Collision
Solid amber	High number of collisions

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