Daktronics AF-3165-34-RGB - Manual (Page 12)

Galaxy ® : Daktronics trademarked name for LED monochrome, tri-colored or RGB
matrix displays.
Network: A network consists of multiple displays connected to each other. Up to
240 displays can exist on one network.
Power Supply: converts AC line voltage from the load center to low DC voltage for
one or more module driver boards.
RS232: RS232 is a standard PC communication type with a maximum cable length
of 25 feet (7.6 meters).
Figure 3: Signal Converter
(RS232 to RS422 Shown)
RS422: RS422 is a standard differential communication
type with a maximum cable length of 4000 feet (1.2
kilometers).
Display Address: The display address is an identification
number assigned to each display of a network. Rotating the
address switches on the controller sets it. The control
software uses the address to locate and communicate with
each display. Displays that are on the same network cannot
have the same address.
Signal Converter: The signal converter, shown in
Figure 3
on the right, is a Daktronics supplied unit that converts the
data from RS232 to RS422, or RS232 to fiber optic signal.
The signal converter is connected to the control PC via
straight through serial cable.
Driver/Pixel Board: The LED pixels are mounted directly onto the driver/pixel
board. This board is also responsible for the switching and intensity levels of the
LEDs.
LED (light emitting diode): low energy, high intensity lighting units.
Louver: a black plastic shade positioned horizontally above each pixel row. The
louvers increase the level of contrast on the display face and direct LED light.
Introduction 1-6