Daktronics Galaxy AF-3400 Series, Display Manual, Page: 28 / 93

Electrical Installation
3-4
openings in the top of the bottom section and the bottom of the top section
to plug the jack from the power termination panel into the plug coming
from the Z-filter as shown in
Figure 14 .
2. Connect the ground strap from the ground lug in the bottom row of the top
section to the ground lug on the top row of the bottom section as shown in
Figure 14.
3. The light sensor is located at the top row of the top section. Connect the
provided cable from the light sensor to the controller located in the bottom
row of the bottom section. Refer to
Figure 14 and the appropriate
Schematic Drawings located in Appendix A .
4. The ribbon cables run from the top section to the bottom section. They plug
into quick connects which are installed in the display, and route down to the
controller located in the bottom row of the bottom section. Refer to the
appropriate
Schematic Drawings and Figure 14 for ribbon cable details.
3.4 Conduit
Daktronics does not include the conduit. A separate conduit must be used to route:
•
Power
•
Signal IN wires to the signal termination enclosure when applicable
•
Signal OUT wires (if not using the provided interconnect cable)
Knockouts are on the rear of the display for power and signal. Some of the
monochrome displays will have a 2x4 junction box (J-box) for termination of power.
Unthreaded knockout holes are provided in the signal enclosures used with the
display. If necessary, there are knockout/drill holes in the display when not using the
provided enclosures.
For displays with more than one face, signal wiring between displays is normally
done using a quick connect interconnect cable (length 6 feet). If the displays are too
far apart for the interconnect cable, two primary displays will be used. The
interconnect wiring is included in the manual for your communication type.
3.5 Preparing for Power/Signal Connection
Reference Drawing:
Layout Drawing....................................................................... Appendix A
Note the following when connecting power to the display:
1. Enclosures are provided with the display for termination of signal ( Section
3.6 shows the internal wiring for the power, and the manual for your
communication type shows an alternate termination method for the signal).
2. Route power to the display through a fused disconnect switch capable of
opening all ungrounded power conductors. Install this disconnect within the
line of sight of any personnel performing maintenance on the display. If the
disconnect is located out-of-sight of the display, it must be capable of being
locked in the open position.