Daktronics Galaxy AF-3500 Series 46 mm - Manual (Page 45)

Glossary 41
Glossary
Cabinet: The metal frame of the display (back, sides, top, and bottom).
Column: A vertical line of pixels.
Controller: The “brains” of the display. The controller receives signal communication from the
computer and sends the information to the modules. Messages 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.
Galaxy ® : One of Daktronics trademarked names for commercial LED matrix displays.
Light Emitting Diode (LED): A low energy, high intensity lighting element. When grouped together,
LEDs produce the messages that appear on the display.
Louver: Black plastic ledge positioned horizontally above each pixel row. The louvers block sunlight
to increase the level of contrast on the display face.
Mirror: The second display in a two-sided (2V) configuration. The mirror display does not have a
controller, but rather an MLC. 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.
Multi-Line Controller (MLC): Used in mirror displays to repeat data from the primary display and
to control the mirror display’s ventilation fans.
Module: Modules are the “building blocks” of the display. Individual module sizes vary depending
on the pixel pitch of the display. 46 mm Galaxy
® modules have a pixel pitch of 8 x 8. Each module is
individually removable from the front of the display.
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. The number and color of the LEDs will
depend on display application. For example, 46 mm RGB pixels contain three LEDs while 46 mm
RED and AMBER pixels contain one LED.
Pixel Pitch: The amount of space between the centers of two pixels. The pixel pitch is equidistant
both vertically and horizontally.
Primary: The first display in a two-sided (2V) configuration. The communication signal, light sensor,
and temperature sensor connect to this display. Information is relayed from the primary through an
inter-connect cable to the MLC in the mirror so that it shows exactly the same information.
Venus 1500: Software used to create messages and send them to displays. The Venus 1500 software
manual is included on the software’s installation disk.