![Adaptive AlphaXpress 8731 Installation And Maintenance Manual Download Page 9](http://html.mh-extra.com/html/adaptive/alphaxpress-8731/alphaxpress-8731_installation-and-maintenance-manual_2846977009.webp)
I
NTRODUCTION
S
YSTEM
OVERVIEW
AlphaXpress 8731 Sign Installation and Maintenance Manual (pn 1508610601 rev. A)
9
27 x 108 dimensions
Figure 5.
AX-8731-27x108-18A
27 x 126 dimensions
Figure 6.
AX-8731-27x126-18A
For views and dimensions other than three row configurations see the “Appendix” on page 51 for more details.
General system
The entire sign system may be broken down into four basic subsystems:
•
VMS control system
•
LED brightness control system
•
Environmental control system
•
Electrical system
In the following sections, we explain each of the above-mentioned systems in general terms for ease of
understanding. Referring to the drawings throughout this manual should help you to gain a general
understanding of the LED Variable Message Sign system.
What is an LED?
LED-based signs are one of the most versatile and visible display systems available. We use a cluster of small
LEDs to form a pixel. The pixels are arranged in various matrices to form alphanumeric characters. These
characters are then linked together to form an LED display line. The display line format used in AlphaXpress
8731 signs is full matrix, which allows for the display of any alphanumeric character, including punctuation
marks, as well as simple graphics characters.
89.0”
300.0”
14.25”
34.25”
Power panel
cube
Power panel
cube
Controller
cube
Power panel
cube
Power panel
cube
89.0”
346.8”
14.25”
34.25”
Power panel
cube
Power panel
cube
Controller
cube
Power panel
cube
Power panel
cube
Power panel
cube
Power panel
cube