Daktronics AF-3090-89-R,A - Manual (Page 7)

Introduction
1-2
This manual shows all references to drawing numbers, appendices, figures or other manuals in bold
typeface, as shown below.
“Refer to Drawing A-69945 in Appendix A for the power supply location.”
Additionally, the manual lists drawings referenced in a particular section at the beginning of that
section as seen in the following example:
Reference Drawings:
Component Placement Diagram ...............................................................Drawing A-69945
Daktronics builds displays for long life and that require little maintenance. However, from time to
time, certain sign components need replacing. The Replacement Parts List in Section 4.11 provides
the names and part number of components that you may need to order during the life of the sign. Most
sign components have a white label that lists the part number. The component part number is in the
following format: 0P-XXXX-XXXX (circuit board) or 0A-XXXX-XXXX (multi-component
assembly).
Following the Replacement Parts List is the Exchange/Replacement Procedure in Section 4.11.
Refer to these instructions if any sign component needs replacement or repair.
1.2 Network Concepts
The concept of using LED displays as cost effective, high impact method of communication is rapidly
growing throughout many industries and businesses. The reasons for this growth are many, but the
need for additional features and complexity of multiply display installations has emerged, and
Daktronics display system have been designed to meet those needs.
The common thread to most client requests is a means of programming and controlling a group of
displays from a central control point. Daktronics responded by developing a powerful system of
interconnecting and controlling displays. Great care has been taken to design products that will satisfy
a wide variety of installations. Some of the design goals of these systems include the following:
•
Easy transfer of messages
•
The ability to tell a display or group of displays in the network which message should run
•
The ability to determine the status of any display on the network
•
The ability to control multiple display technologies on the same network
Tools required for mounting the display depend on the location and size of the display. For some
installations, it may be possible to by pre-terminated telephone cables for use with the displays.
There are four (4) network systems available: RS232, RS422, modem, and fiber. Up to 240 displays
can exist one network.
Figure 1: Drawing Label