Daktronics VANGUARD VL-3500 Series, Руководство пользователя

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Glossary
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Glossary
Cabinet : The metal frame of the display (back, sides, top, and bottom).
Column : Vertical line of pixels.
Controller : A component that controls data for the entire display. It is located behind the
bottom-left module.
Display Address : Identification number assigned to each display in a network. It is set
using the display’s controller. The controller computer uses the address to differentiate
between displays connected on the same network. Displays on the same network
cannot have the same address.
Display Configuration : A display’s model number, address, etc.
Ethernet : A local area network (LAN) protocol using a bus topology. The Ethernet network
card uses the TCP/IP interface to communicate with the server via the LAN.
Ethernet Surge Card : An inline device that filters the Ethernet data line. It suppresses
surges to a low voltage to protect the display controller’s Ethernet input.
Face Panel : A latching door that hinges downward. The modules mount to the face
panel.
Fiber Optic : Technology that uses light energy to transmit signal to displays via hair-thin
optical fibers.
Fiber Media Converter : A hardware device that converts fiber media to Ethernet or vice
versa.
LED (Light Emitting Diode) : Low-energy, high-intensity lighting units. LED displays offer high
resolution for distinct text. A cluster of LEDs form a pixel 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.
Matrix : Area on a display that plays content, measured in rows and columns of pixels.
Module : A unit of the display that consists of LEDs, a display board, and a driver board.
Modules are placed next to each other to form the matrix of the display. One driver
board is located on the back of each module.
Multi-Line Controller : (MLC) receives signal from the controller and distributes it to the
modules. Ribbon cables run from the module connectors on the MLC to the first modules
in each row via ribbon cables. The power supply nearest the MLC will provide its power
via a transformer in the enclosure with the MLC.
PCB : Printed Circuit Board.
Pixel : A group of LEDs that power on and off to form character and graphic content.
Pixel Pitch : The amount of space between the center of two pixels (20 mm). The pixel
pitch is equidistant both vertically and horizontally.
Power Supply : Component that converts incoming alternating current (AC) power to
direct current (DC) power, as required by several components within the display.
Row : Horizontal line of pixels.
RS232 : Standard PC communication type with a maximum cable length of 25' (7.62
meters).