Daktronics KE-1010-7.6-RG - Manual (Page 23)

Maintenance and Troubleshooting 17
5.3 Definitions
Cabinet: The metal frame of the display (back, bottom, top); may also include the end caps.
Column: A vertical line of pixels.
Controller: The component in the master section that receives and interprets the data from
the computer’s ticker feed.
End Cap: A metal plate that covers each end of a ticker.
Ethernet: A standard communication interface that utilizes a local area network (LAN). The
maximum cable length is 300 feet (100 meters).
Face Panel: The transparent polycarbonate panel that sits in front of the modules.
LED: (Light Emitting Diode) A low energy, high intensity lighting unit that shows the text on
the ticker display.
Module: A 16 x 40 or 24 x 40 array of LEDs. Modules may be individually removed from the
display unit.
Pixel: A single point of light on a display. On the KE-1010, a pixel consists of one LED.
RS-232: A standard PC communication type with a maximum cable length of 25 feet (7.6
meters).
RS-422: A standard differential communication type with a maximum cable length of 4,000
feet (1.2 kilometers).
Row: A horizontal line of pixels.
Shift Board: Relays the signal from the controller board to the first module and then between
ticker sections.
Signal Converter: A Daktronics supplied unit that converts the data from RS-232 to RS-422.
The signal converter is connected to the control PC via a straight through serial cable.