Daktronics AF-3150-20-R,A - Manual (Page 12)

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: Black plastic shade positioned horizontally above each pixel row. The
louvers increase the level of contrast on the display face and direct LED light.
Module: 20mm Galaxy
® modules are 16 pixels high by 16 pixels wide. Each is
individually removable from the front of the display.
Module Latch Assembly: Device utilizing a rotating retainer bar to hold the module
firmly to the display frame. There are two per module: one near the top and one near
the bottom. Use a 1/8" Allen wrench to turn the retaining bar.
Figure 3: 16x16 Module (Front and Back)
Network: A network consists of multiple displays connected to each other. Up to
240 displays can exist on one network.
Pixel: Cluster of LEDs. The number and color of the LEDs depends on display
application.
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 (7.62 meters).
Introduction 1-6