Daktronics AB-1600-1.5,2.5 - Manual (Page 14)

Introduction 1-6
Vertical Shift Board: The vertical shift board is a circuit board mounted
to the back of the left-most (front view) lampbank in each row of
modules. It routes data from the line receiver both down the row and to
the vertical shift board below it. A vertical shift board is seen in Figure
11.
Data Distributor Definitions
The following de finitions are specific to displays with data
distributors.
Column Director: This circuit board directs the flow of data coming
from the data distributor to the proper line controller(s) through Cat-5
cable. It is part of the interface for 16.7 million-color and 64 shades of
gray technology.
Data Distributor: The data distributor is a display controller that
consists of a receiver board and output cards. The number of output
cards can range from 2 to 10, depending on the size of the display.
The receiver board receives signal from the controller computer
through fiber optic cable and distributes it to the output cards. The
output cards send the signal to the display through the column
directors and line controllers. A data distributor is capable of 16.7
million-color and 64 shades of gray display images.
Line Controller: A circuit board that receives signal from a
column director and distributes it to the modules in a row. Figure
14 shows an illustration of a line controller. The line controller is
mounted to the back of the left-most (front view) lampbank in each
row of modules. It routes data from the column director both down
the row and to the line controller below it.
Figure 11: Vertical Shift
Board
Figure 12: Column Director
Figure 13: Data Distributor
Figure 14: Line Controller