You can configure the second line of the LCD panel to display a custom message. If
the LCD panel is configured to display a custom message, the Menu button and the
Enter button are disabled. See Configuring the LCD Panel on EX Series Switches (CLI
Procedure).
The LCD panel has a backlight. If the LCD panel remains idle for 60 seconds, the
backlight turns off. You can turn on the backlight by pressing the Menu or Enter
button once. After turning on the backlight, you can toggle between the LCD panel
menus by pressing the Menu button and navigate through the menu options by
pressing the Enter button.
NOTE: The chassis viewer in the J-Web interface also displays the LCD panel. From
the J-Web interface, you can view real-time status information in the LCD panel. See
Dashboard for EX Series Switches.
This topic describes:
■ LCD Panel Modes on page 10
■ LCD Panel Menus on page 11
LCD Panel Modes
The LCD panel operates in four modes: boot, idle, status, and maintenance.
The LCD panel operates in boot mode during switch reboot. The boot mode displays
the key milestones in the switch boot process. The boot mode does not have any
menu options. After the boot process is complete, the LCD panel automatically reverts
to the Idle menu.
In the idle mode, the second line of text on the LCD panel displays the mode of the
network ports’ Status LED and the number of chassis alarms. The number of alarms
is updated every second.
In the status mode, the second line displays:
■ Status of the power supplies
■ Status of the fans in the fan tray and the chassis temperature
■ Version of JUNOS Software for EX Series switches loaded on the switch
In the maintenance mode, the second line displays one of the following options that
you can use to configure and troubleshoot the switch:
■ System halt
■ System reboot
■ Load rescue
■ Factory default
■ EZSetup
10 ■ LCD Panel in EX4500 Switches
Complete Hardware Guide for EX4500 Ethernet Switches
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