Daktronics DF-12xx - Manual (Page 26)

3-6 Electrical Installation
Note: The cable from the j-box to the display needs to be routed through conduit or
the display pole to protect it from weather and vandalism.
1. Mount the j-box near the display.
2. Route a 4-conductor, 22 AWG, shielded cable through conduit from the j-box
to the driver enclosure in the host display. (Distance limit from the j-box to
the display is 50 ft.)
3. Connect the signal/power cable from the j-box to the driver enclosure as
shown in Figure 7 and listed in the table. Refer to Drawings A-175342 and
A-184918 for additional information.
4. Using a DB9M to DB9F serial cable, plug the DataMaster controller into the
J-box, connected to the Host Display Driver Enclosure
J-Box to Driver Enclosure Input Jack
J-Box
Pin#
Cable
Color
Enclosure Terminal
Block
Pin 1 Red 12V DC Out (+) pin 7
Pin 5 Black 12 V DC Out (-) Pin 8
Pin 5 White Signal IN (-) Pin 2
Pin 6 Green Signal IN (+) Pin 1
Figure 7: Direct Current Loop Connection