Daktronics DF-4000 - Manual (Page 17)

Mechanical and 3-3
Electrical Installation
National Electrical Code requires the use of a lockable power disconnect within
sight of or at the display.
Installation with Only a Neutral Conductor Provided
Installations where no grounding conductor is provided must comply with Article
250-32 of the National Electrical Code. If the installation in question meets all of the
requirements of Article 250-32, the following guidelines must be observed:
• Connect the grounding electrode cable at the local disconnect, never at
the display driver/power enclosure.
• Use a disconnect that opens all of the ungrounded phase conductors.
3.2 Power and Signal Connection
Reference Drawings
Address Dip Switch Settings........................................Drawing B-256001
Power connects to the pigtail inside the display. The pigtail has three wires: black
(120 V AC line), white (neutral) and green (ground), and a 5-pin plug on one end.
The plug is connected to the mating plug on the transformer. Use wire nuts to
connect power wires to the pigtails.
Signal wires are terminated with a telephone-type RJ14 connector. Route the cable
from the jack in the j-box to J6 in the driver (see Figure 4 below).