2 – General Description
Chassis Controls and LEDs
59096-02 C 2-3
A
2.1.1
Maintenance Button
The Maintenance button is a dual-function momentary switch on the front panel.
Its purpose is to reset the switch or to place the switch in maintenance mode.
Maintenance mode sets the IP address to 10.0.0.1 and provides access to the
switch for maintenance purposes when flash memory or the resident configuration
file is corrupted. Refer to ”Recovering a Switch” on page 5-12 for more information
about using maintenance mode.
2.1.1.1
Resetting a Switch
To reset the switch, use a pointed tool to momentarily press and release (less than
2 seconds) the Maintenance button. The switch will respond as follows:
1. All the chassis LEDs will illuminate except the System Fault LED.
2. After approximately 1 minute, the power-on self test (POST) begins,
extinguishing the Heartbeat LED.
3. When the POST is complete, the Input Power LED is illuminated and the
Heartbeat LED is flashing once per second.
2.1.1.2
Placing the Switch in Maintenance Mode
To place the switch in maintenance mode, do the following:
1. Isolate the switch from the fabric.
2. Press and hold the Maintenance button with a pointed tool. When the
Heartbeat LED alone is illuminated, release the button.
3. After a few seconds, the POST begins illuminating all chassis LEDs.
4. When the POST is complete, the chassis LEDs extinguish leaving only the
Heartbeat LED illuminated. The Heartbeat LED illuminates continuously
while the switch is in maintenance mode.
To exit maintenance mode and return to normal operation, momentarily press and
release the Maintenance button to reset the switch.
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