Introduction
1
1 Introduction
How to Use This Manual
This manual explains the installation, maintenance, and troubleshooting of VX-242X
series Dynamic Message Signs (DMS) and systems. For information regarding the safety,
installation, operation, or service of this system, refer to the telephone numbers on the
cover page of this manual.
Daktronics identifies manuals by the ED or DD number located on the cover page of
each manual. For example, this manual is referred to as
DD3937164
.
The serial and model numbers for the display are on the ID label attached to the display.
This label looks similar to
. When calling Daktronics Customer Service, please have
this information available to ensure timely response.
Daktronics builds displays for long life, and they require little maintenance. However, from
time to time, certain components need replacing. Refer to the
Repair & Return Programs (p.22)
if any component needs replacement or repair.
Theory of Operation
Vanguard
®
VX-2428 Power and Control System
The Vanguard
®
VX series displays employ a power on the ground system, meaning all
power and control equipment is contained in the traffic cabinet and routed to the
individual displays. Each display is controlled individually, with one Vanguard
®
Field
Controller per display
.
Vanguard
®
Software
Daktronics Vanguard
®
software allows the DMS operator to check display status and to
control messages.
Vanguard
®
Field Controller
The Vanguard
®
Field Controller is the communication hub for DMS management; it is
located in the traffic cabinet.
The central controller creates messages and transmits them to the Vanguard
®
Field
Controller for storage. Upon request from the central controller or the front panel
interface, the Vanguard
®
Field Controller locates the message to display and sends it
to the display’s modules via the Vanguard
®
control board. The modules activate the
appropriate pixels to form the message.
The Vanguard
®
Field Controller also monitors local sensors (display-based sensors) like
temperature, light level, and door detection. The Vanguard
®
Field Controller interprets
sensor data for display control and diagnostic functions, such as adjusting the display’s
intensity for current lighting conditions.
Figure 1:
Display ID Label
