Daktronics KE-1010-7.6-RG - Manual (Page 15)

Section 4: Signal Installation
To display messages on a KE-1010 display, signal is sent from the computer to the ticker via one of
two possible network systems: RS-422 or Ethernet. Signal is received by the controller board inside
the master section of the ticker. The controller board processes the data and relays it to the shift card.
The shift card relays signal to the modules, then the appropriate LEDs create the messages which
scroll across the ticker display.
Reference Drawings:
Concept System Riser Diagram TCP/IP......................................................... Drawing A-229840
Concept System Riser Diagram RS-422 ........................................................ Drawing A-229912
Schematics.............................................................................................................. in Appendix A
4.1 Network Options
RS-422 Connections
An RS-422 communication system requires a signal converter to change the computer’s RS-
232 output into RS-422 signal for the controller. The typical maximum cable length is 1.2km
(approximately 4,000 feet). Refer to Appendix B for information on the signal converter.
Refer to Figure 12 for an overview of this communication layout.
Figure 12: RS-422 Signal Layout
To connect RS-422 signal, follow these steps:
1. Plug the serial cable’s 25-pin connector into the signal converter.
2. Plug the 9-pin connector into the RS-232 COM port to be used.
3. Plug the signal converter’s power cord into a grounded outlet.
Note: The signal converter requires a specific supply voltage of 120 or 240 VAC.
4. Plug a flipped 6-conductor RJ11 cable into the “RS-422 OUT” of the signal converter
and the opposite end into the “RS-422 IN” of the master section.
5. Plug the ticker’s power cord into a 100-240 VAC grounded outlet.
Signal Installation 9