Daktronics AB-1600-1.5,2.5 - Manual (Page 10)

Introduction 1-4
1.3 Definitions
The following list of definitions is in three sections: General Display Definitions, Line Receiver
Definitions and Data Distributor Definitions. Since the display has either a line receiver or a data
distributor, not all definitions will apply. Definitions that apply to displays with both types of display
controllers are under General Display Definitions.
General Display Definitions
Controller Computer: The computer that controls what you see on the display. Information
travels from the controller computer to the display controller through fiber optic cable.
Display Controller: A general term used to describe the device housed either inside or outside
the display that receives signal from the controller computer. This display will use either a line
receiver or a data distributor as a display controller.
Fan Controller Enclosure: An assembly found within the display that receives information from
the cooling fans. The fan controller card within the enclosure provides power to the fans and
monitors the fans for proper operation. If the fan control circuit detects a fan failure, it sends a
signal to the data distributor telling it to blank the display. This prevents the display from over-
heating. If the display remains blanked for 30 minutes, the data distributor or line receiver sends a
signal to the fan control circuits, turning the fans off. This extends the life of the fans and filters.
Lampbank: A circuit board consisting of an array of lamps 8 pixels high by 16 pixels wide.
Figure 5 illustrates a single lampbank from the front and back. One lampbank mounts to the rear
of each lens/reflector assembly. If necessary, a lampbank can be easily removed from the
lens/reflector assembly.
Figure 5: Lampbank (Lamp Side shown at top, Solder Side
shown at bottom)