Q-Logic 5000 Manuel D’Utilisation

2 – General Description

Chassis Controls and LEDs

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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 Input 
Power LED, Heartbeat LED, and the System Fault LED. To apply power to the 
switch, plug the power cord into the switch AC power receptacle and into a 100– 
240 VAC power source.

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.

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.

AC Power 

Receptacle

Maintenance 

Button

Chassis LEDS