2-5
Installing the Switch
Installation Procedure
2. Check the LEDs on the switch as described below.
When the switch is powered on, it performs its diagnostic self test. The
self test takes approximately 30 seconds to complete.
Self Test LED Behavior:
During the self test:
• Initially, all the status, and all port Link and Mode LEDs turn on, with
the Locator LED blinking.
• After several seconds all LEDs turn off, except for the Power, Fault,
Locator, and Act LEDs, which remain on.
•The port Link LEDs turn on in sequence from port 1 to port 24, and
then the Mode LEDs flash once in sequence. Finally, the Link LEDs
turn off in the same sequence and the self test is complete.
When the self test completes successfully:
•The Power LED remains on.
•The Fault and Locator LEDs stay off.
•The Act LED remains on indicating the default LED mode.
• The port LEDs on the front of the switch go into their normal opera-
tional mode:
– If the ports are connected to active network devices, the Link
LEDs stay on and the Mode LEDs behave according to the mode
selected. In the default mode (Act), the Mode LEDs should be
blinking indicating port activity.
– If the ports are not connected to active network devices, the Link
and Mode LEDs will stay off.
If the LED display is different than what is described above, the self test
has not completed correctly. Refer to “Troubleshooting” for diagnostic help.
3. Remove power to the switch before mounting.
Power, Fault,
Locator LEDs
Port Link and Mode
LEDs
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