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 45 seconds to complete.
Self Test LED Behavior:
During the self test:
• Initially, the Power, Fault, Locator, Status and Mode LEDs turn on. Port
LEDs are off.
• After several seconds, all the port LEDs turn on.
• After several seconds, the Fault and Locator LEDs turn off, as do the
port LEDs. Then each port Link LED is sequentially turned on, then
off. The Test LED turns off when the self test completes.
When the self test completes successfully:
•The Power LED remains on.
•The Fault, Locator and Test LEDs stay off.
•The Fan LED stays on.
•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.
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