Q-Logic 2-8C Manuel D’Utilisation

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2 – General Description
Chassis Controls and LEDs
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2.1
Chassis Controls and LEDs
The Maintenance button shown in 
 is the only chassis control and is 
used to reset a switch or to recover a disabled switch. The chassis LEDs provide 
information about the switch’s operational status. These LEDS include the Over 
Temperature LED, Fan Fail LED, Heartbeat LED, and the Input Power LED. To 
apply power to the switch, plug the power cord into the switch AC power 
receptacle and into a 110 or 230 VAC power source.
Figure 2-2.  Chassis Controls and LEDS
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 
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 of the chassis LEDs will illuminate and then extinguish leaving only the 
Input Power LED illuminated.
2.
After approximately 1 minute, the Power-On Self Test (POST) begins 
illuminating all chassis LEDs.
3.
When the POST is complete, the chassis LEDs extinguish leaving the Input 
Power LED illuminated and the Heartbeat LED flashing once per second.
AC Power 
Receptacle
Chassis LEDs
Maintenance 
Button