2424m Gigabit Stacking Module Installation Guide 1999-03
7
Installing the Module
5. Tighten the two retaining screws to hold the module in place. The retaining
screws should be secure but be careful to not overtighten them.
4. Verify the Module is Installed Correctly
Observe the Module Status, Self Test, and Fault LEDs on the front of the switch
to verify that the module is installed properly.
When the module is installed properly and the switch is powered on, or the
module is installed when the switch already has power, the module undergoes
a self test that takes a few seconds. You can use the LEDs to determine that
the module is installed properly and has passed the self test, as described in
the “LED Behavior” table below.
LED Behavior
LED Display for a Properly Installed Module
Module Status Goes ON as soon as the module is installed and the switch is
powered on, and stays ON steadily.
Self Test ON briefly while the module is being tested, then OFF.
Note: If the switch was powered off while the module was
installed, when the switch is powered on, the Self Test LED will
stay ON for the duration of the whole switch self test.
Fault OFF
tighten the two
retaining screws
Fault LED
Module Status and
Self Test LED
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