Daktronics AF-3090-89-R,A User Manual
Page 8
Introduction
1-3
RS232 Network
RS232 (EIA/TIA-232-E) is a standard communication interface that employs a single -ended serial
transmission scheme that uses a maximum cable length of 8 meters (25 Feet). This interface was
designed for computer communication at short distances. Most computers have an RS232
communication port.
RS422 Network
RS422 (EIA/TIA-422-B) is a standard communication interface that utilizes a differential
balanced transmission scheme that uses a typical maximum cable length of 1.2 km (approximately
4000 feet). The main advantage to RS422 over RS232 is the longer cable length that is possible. A
signal converter is needed to convert the computer’s RS232 to RS422.
Modem Network
The modem is a standard communication interface that utilizes standard phone transmission lines.
The phone company assigns each phone line a number that the modem uses to communicate
between controller and display.
Fiber Optic Network
A fiber optic network is a standard communication method transmitting light (signal) through a
glass fiber. Fiber optic cable has a maximum length of 2,000 feet. A signal converter is needed to
convert the computer’s RS232 signal to fiber optic signal; a minimum of two fibers is required.
1.3
Sign Overview
Reference Drawings:
Power Specs, AF-3090, Amber LED’s………………………………….. Drawing A-158396
Power Specs, AF-3090, RED LEDs………………………………………Drawing A-162439
Shop Drawing, AF-3090, 8x**-24 Amber/Red........................................ Drawing B-160986
Shop Drawing, AF-3090, 16x**-24 Amber/Red...................................... Drawing B-160987
Shop Drawing, AF-3090, 24x**-24 Amber/Red...................................... Drawing B-160988
Shop Drawing, AF-3090, 32x**-24 Amber/Red...................................... Drawing B-160989
Daktronics designs and manufactures AF-3090 Galaxy signs for performance, reliability, easy
maintenance and long life. The pixels have an 89 mm center-to-center spacing, and light using LEDs
(light emitting diodes). Each sign section has minimum 24-inch character height. An optional
remotely mounted light sensor can automatically dim the LEDs based on the ambient light levels. The
configuration of pixels depends on the model of sign ordered.
Refer to the drawings referenced above for the approximate size, weight, and power requirements for
your model of sign.
The following describes the Galaxy model numbers: AF-3090-RRCCC-89-X
AF-3090 = Outdoor 89 mm Louvered Galaxy Sign
RR
= Number of Rows High (8, 16, 24, and 32 are available)
CCC
= Number of Columns Long (32, 48, 64, 80, 96, and 112 are available)
89
= 89 mm center-to-center pixel spacing
X
= LED Color (monochrome red or monochrome amber are available)
A typical sign system consists of a Windows
based personal computer (PC) running Venus
1500
software and one or more signs. Daktronics offers the signs as single -face units, which are single -