Daktronics AF-3090-89-R,A - Manual (Page 10)

Introduction
1-5
RS232: RS232 is a standard PC communication type with a maximum cable length of 25 feet (7.62
meters)
RS422: RS422 is a standard differential communication type with a maximum cable length of 4000
feet (1.2 kilometers)
Sign Address: The sign address is an identification number assigned to each display of a network. It
is set by flipping DIP switches on the controller. 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.
Venus
®
1500: a Daktronics designed, Windows based software used to create and edit messages on
the display. Refer to ED-12717 for more information.
Refer to Figure 2 while reading the following component descriptions.
Driver: circuit board responsible for switching the intensity levels of the LEDs. The driver is located
inside the driver box and mounts on the back of the module.
Latch Access Fastener: device utilizing a rotating retainer bar to hold the module firmly to the sign
frame. There is one per module near the center of the module on the right side.
LED (light emitting diode): low energy, high intensity lighting units.
Louver: a black shade positioned horizontally above each pixel row. The louvers increase the level of
contrast on the sign face and direct LED light.
Module: 89 mm Galaxy modules are 8 pixels high by 8 pixels wide. They consist of pixel strips,
louvers, and a driver.
Pixel: a cluster of LEDs. The number and color of the LEDs depends on sign application.
Figure 3: 8x8 Pixel Module (Front and Rear)