Daktronics AB-1600-1.5,2.5 - Manual (Page 17)

Electrical Installation
2-3
In addition, keep the following critical points in mind.
• = Continuously support the bottom of the display along its length. The bottom display attachment
must support the weight of the display and any additional weight caused by ice, snow, etc., plus
half the wind load.
• = The top of the display must resist overturning and half the wind load.
• = If the display shipped in sections, and the sections require removal from the trailer prior to
installation, do not set the sections directly on the ground. Place them on spacers at least two
inches high to prevent module damage.
• = Ensure the mounting structure does not obstruct the drain holes in the bottom of the display or the
bottom angle of the display. If this is the case, drill
‚-inch drain holes through the mounting
structure in the same
location as the original
holes. Be sure to maintain a
minimum of
O-inch
clearance between all
bottom drain openings in
the base of the sign and the
mounting structure.
• = Depending on display
design, it may be necessary
to jump ribbon cable from
the last driver board in one
section row to the first
driver board in the section
beside it. If this is the case, be sure not to crush the ribbon cables between the display sections.
Figure 18 illustrates one possible mounting method for a large matrix display. Refer to Drawing A-
116653 in Appendix B for details. Figure 18 shows two display sections welded to a piece of
horizontal tubing attached to a support structure by the customer/subcontractor. A cabinet display
could attach in a similar manner.
Figure 19 and the steps below provide an example of how a sectional display might mount using the
horizontal tubing method illustrated in Figure 19. The number of sections in a display may vary. The
purpose of the following information is to provide general guidance in mounting the individual
sections to a support structure. Refer to Drawing A-96848 in Appendix B for details.
The circled numbers in Figure 19 correspond
to the numbers of the following steps.
1. Bring the first lower section, Section 1,
of the display into position and weld the
upper and lower clip angles to the upper
and lower horizontal tubing. Pay close
attention to this first display section.
Ensure it is both vertically and
horizontally straight, as all other sections
will use this section’s position as
reference.
2. If an additional section is to be placed
beside the first section, apply a 3 /
16
-inch
bead of silicone around all interconnect
Figure 18: Outdoor Mounting Method Example (Horizontal Tubing)
Figure 19: Sectional Mounting Method