Daktronics GPR-12EV-RGB - Manual (Page 49)

Glossary 43
Glossary
Controller: The “brains” of the display. The controller receives signal communication from the
computer and sends the appropriate information to the multi-line controller (MLC). Presentations
and schedules may also be stored on the controller for use when desired.
Display Address: An identification number assigned to each display of a network. The control
software uses the address to locate and communicate with each display. Displays that are on the
same network must have different addresses.
GalaxyPro ® Revolution: One of Daktronics’ trademarked names for commercial LED matrix
displays.
Light Emitting Diode (LED): A low energy, high intensity lighting element. LEDs are the smallest
portion of the presentations that appear on the display.
Louver: A black plastic ledge positioned above either individual LEDs or each row of LEDs. Louvers
block sunlight and increase the level of contrast on the display face.
Mirror: The second display in a Two View (2V) configuration. The mirror display does not have a
controller so it displays an exact copy of the information on the primary display. All signal
information to the mirror is received through an inter-connect cable from the primary display.
Module: The primary component of a display consisting of LEDs attached to a circuit board encased
in a hard plastic body. Individual module sizes vary depending on the pixel pitch of the display and
each is individually removable from the front of the display.
Multi-Line Controller (MLC): A component that distributes signal from the controller or another
MLC to a number of modules.
Network: Consists of multiple displays connected to each other. As many as 240 primary displays
can exist on one network.
Picture Element (Pixel): A single LED or cluster of LEDs which work together to create images. The
number and color of the LEDs will depend on the pixel pitch. For example, smaller pixels contain
fewer LEDs while larger ones contain more LEDs.
Pixel Pitch: The amount of space between the center of two pixels (16 mm, 20 mm, etc.). The pixel
pitch is equidistant both vertically and horizontally.
Primary: Either an individual single-sided display or the first display in a two-sided (2V)
configuration. The communication signal, light sensor, and temperature sensor will be connected to
this display. Information is relayed from the primary display through an inter-connect cable to the
mirror display so that it shows exactly the same information.
Section: A portion of a display consisting of a metal cabinet and various internal components
(controller, MLC, etc.). A sectional display contains two or more sections joined together.
Venus ® 1500: The software on the control computer used to create messages and send them to the
displays.