Daktronics DF-12xx - Manual (Page 29)

Electrical Installation 3-9
Notes:
1. The cable from the client radio to the display can to be routed through
conduit or the display pole to protect it from weather and vandalism. The
cable is weather and sunlight resistant.
2. The Server and Client radios must have a clear line-of-sight path and not
be more than 1500 feet apart.
3. A current-loop j-box is often mounted at the base of the display pole in
case of problems with communication though the radio network.
4. For additional connection and operation information see ED13894:
DataMaster Radio Installation Manual
Modem (Indirect)
Reference Drawings:
Modem Installation; 4 col MASC Drvr. Enc..................Drawing A-177039
Quick Install, DF-1020 Gas Price Displays..................Drawing A-189768
System Riser Diagram, Modem Setup ........................Drawing A-200552
A modem controlled display uses a DataMaster controller connected to a
modem/j-box, to call a second modem in the Gas Price display. The DataMaster
hand-held controller will receive its power from the j-box. A wall pack transformer
powers the j-box. The display layout is shown in
Figure 11 and Drawing A-200552.
Figure 11: Modem Controlled Display Layout