Glossary
17
Glossary
Central Control Software:
A software system that can control signs remotely. This software
contains a message studio, schedule studio, a sign manager, and other tools that
configure signs and networks for an Intelligent Transportation System.
Column:
Vertical line of pixels.
Light Emitting Diode (LED):
Low-energy, high-intensity lighting units. LED signs present high
resolution for distinct text. Multiple, closely-spaced LEDs form a pixel on the VMS display.
Line:
Horizontal row of modules.
Matrix:
Visible display area on a sign, measured in rows and columns of pixels.
Module:
Contains an array of LED pixels. Modules are placed next to each other to form
the matrix of the display. The module has power input, signal input, and signal output
connectors.
PCB:
Printed Circuit Board.
Pixel:
Group of LEDs that turn on and off as a single unit. Multiple pixels are evenly
spaced throughout the face of the sign and are turned on or off to form the characters
and graphics that make up the content of the displayed message.
Power Supply:
A component that converts incoming alternating current (AC) power to
direct current (DC) power, required by several components within the sign.
Row:
Horizontal line of pixels.
Serial Port:
Connector on the back of the control computer. The serial port controls the
sign network through either a 9- or a 25-pin serial connector.
Sign Address:
An identification number assigned to each sign of a network, set by
rotary switches on the sign controller. The control software uses the addresses to locate
and communicate with each sign. Signs on the same network cannot have the same
address.
Sign Controller:
The component receiving communication from the central control
software and sending that data to the display modules.
Vanguard
®
:
Daktronics-trademarked name for variable message signs and the software
that operates them.
VSLS:
Variable Speed Limit Sign.
Содержание VS-5000 Series
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