Daktronics Galaxy AF-3400 20 mm Monochrome/RGB Double-face Displays - Manual (Page 15)

Power Installation 7
Section 3: Power Installation
Read the Mechanical, Power, and Signal Installation sections before installing the display(s).
• Only a qualified individual should terminate power and signal cable at this Daktronics
display.
• All proposed changes must be approved by Daktronics engineering staff or the warranty
will be rendered null and void.
Reference Drawing:
Power Specs, AF-3400-20-DF-* ...................................................................... Drawing A-305814
3.1 Conduit
Daktronics does not include the conduit. Separate conduit must be used to route:
• power.
• signal IN wires to the signal termination enclosure, when applicable.
• signal OUT wires to a second set of displays.
The power J-box and the power end of the display are provided with 3/4” threaded holes for
use with conduit. Unthreaded knockout holes are provided in the signal enclosures as well. If
not using the provided enclosures, use the openings provided in the display cabinet.
3.2 Overview of Power/ Signal Connection
Following is a brief summary of the power and signal connections to the display.
1. Openings are provided on the display for termination of both signal and power. If
the installation does not allow for the use of the power J-box, refer to Section 3.5 for
diagrams on internal power termination.
2. Possible methods for signal termination are shown in the manual for the specific
communication type.
3. 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.
Note: Displays are equipped with supplemental protection devices that carry a UL1077
(IEC 60947, VDE 660) rating. These devices are only intended to protect the components
within the display. Suitable devices must be used for the equipment and feeders
supplying power to the display.
4. Power conductors from the disconnect to the display should be routed through
conduit in agreement with local code.
5. Display power will terminate to the display at the power termination J-box or
directly to the power termination panel located on the right end of Face A.