Johnson Systems DMX 6-PORT MERGER - Manual (Page 14)

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LCD Display Programming Switches Status LED Indicators
User Interface
All DMX 6-PORT MERGER models are equipped with a user interface located on the front
panel of the enclosure. The user interface provides access to all programming and configuration
settings. System status is easily visible on the LCD display and LED indicators.
All of the programming is accomplished using four (4) switches. Within a few minutes, most users
will find the menu structure very intuitive and easy to navigate. All configuration settings are
automatically stored into an on-board EEPROM.
LCD Display
The LCD display is capable of displaying 2 lines of 8 Characters. A backlight automatically comes
on when activity is sensed on the switches. The LCD contrast can be easily adjusted for optimum
viewing. Refer to menu item “LCD VIEW” on page 18 for further details.
Programming Switches
The MENU UP/DOWN ( ) switches are used for navigating through the various system
configuration menu items. They also allow for programming of other specific parameters within
a selected menu. Pressing and holding either switch will speed up the scroll rate, which can be
helpful to speed up the configuration time.
The EXECUTE ( ) switch is normally used to select/enter a menu item, advance forward within
a selected menu item, or toggle between parameters within a selected menu item.
The ESCAPE ( ) switch is normally used to back up within a selected menu item one step at a
time or exit the menu completely.
NOTE: The programming switches can be locked out to prevent inadvertent configuration
changes. To toggle between “LOCKED!!” and “UNLOCKED” press and hold down the
EXECUTE and then ESCAPE switches at the same time for 4-5 seconds.
The RESET switch has two purposes. First, it allows for quick exit from a menu item after a
programming change and automatically puts the system into normal run mode. Second, it
provides a soft reboot for the systems microcontroller.
The programming switches are backlit with blue LED’s. The LED’s automatically turn on when
activity is sensed.
NOTE: A detailed procedure for programming all system configuration menu items can be found
on pages 16 to 18.