Daktronics AE-3010-7.6-R,G,A - Manual (Page 24)

3.4 Grounding
Proper grounding is necessary for reliable equipment operation and provides some
protection to the equipment from damaging electrical disturbances. The displays are
supplied with a power cord that contains an earth ground conductor. Make sure to
plug this cord into a grounded outlet. The display must be properly grounded or
the warranty will be void.
Note: Displays must be earth grounded according to local electrical code.
The Galaxy displays are supplied with an eight (8) foot power cord.
The socket-outlet should be installed near the equipment and be easily accessible.
Plug the power cord into the back of the display as shown in
Figure 18 .
Figure 18: Power Cord Connection
3.5 Signal Termination from Computer to Display
RS232
Reference Drawings:
V1500 System Riser Diagram; RS/232 ......................... Drawing A-91388
A RS232 system connects the first sign directly to the computer via an adapter. The
adapter has either a DB9 (0A-1115-0042) or a DB25 (0A-1115-0044) connector on
one side, and an RJ11 jack on the other. One end of the RJ11 cable plugs into this
adaptor and the other end to the display. Refer to
Figure 19 and Drawing A-91388
for system layout.
Figure 19: RS232 System Layout
Electrical Installation 3-4