Daktronics AF-3090-89-R,A User Manual
1
PO Box 5128 331 32nd Ave. Brookings, SD 57006
Galaxy Outdoor
89 mm Louvered LED Signs
Series AF -3090
Installation, Maintenance &
Troubleshooting Manual
ED-13288
All trademarks are the property of their respective companies.
ED-13288
Product 1259
Rev 1 – 10 June 2002
Copyright 2002 Daktronics, Inc.
All rights reserved. While every precaution has been taken in the
preparation of this manual, the publisher assumes no responsibility for errors
or omissions. No part of this book covered by the copyrights hereon may be
reproduced or copied in any form or by any means – graphic, electronic, or
mechanical, including photocopying, taping, or information storage and
retrieval systems – without written permission of the publisher.
Tel 605-697-4035 or 877-605-1114 Fax 605-697-4444
www.daktronics.com e-mail: helpdesk@daktronics.com
i
Table of Contents
Section 1: Introduction................................................................................................... 1-1
1.1 How to Use This Manual..................................................................................... 1-1
1.2 Network Concepts.............................................................................................. 1-2
RS232 Network.................................................................................................. 1-3
RS422 Network.................................................................................................. 1-3
Modem Network................................................................................................ 1-3
Fiber Optic Network........................................................................................... 1-3
1.3 Sign Overview.................................................................................................... 1-3
1.4 Component Identification.................................................................................... 1-4
1.5 Daktronics Nomenclature ....................................................................................1-6
Section 2: Mechanical Installation ................................................................................ 2-1
2.1 Mechanical Installation Overview........................................................................ 2-1
2.2 Support Structure Design .................................................................................... 2-1
2.3 Ventilation Requirements.................................................................................... 2-2
2.4 Lifting the Sign .................................................................................................. 2-2
2.5 Sign Mounting ....................................................................................................2-2
2.6 Optional Temperature Sensor Mounting............................................................... 2-3
Section 3: Electrical Installation.................................................................................... 3-1
3.1 Common Connectors in the Sign ..........................................................................3-1
3.2 Control Cable Requirements ................................................................................3-2
RS232 .............................................................................................................. 3-2
RS422 .............................................................................................................. 3-2
Modem .............................................................................................................. 3-2
Fiber Optic ......................................................................................................... 3-3
3.3 RJ Connector Cables........................................................................................... 3-3
Installing an RJ Connector .................................................................................. 3-3
Pin Outs .............................................................................................................3-4
3.4 Conduit .............................................................................................................. 3-4
3.5 Preparing for Power/Signal Connection ................................................................3-4
3.6 Power ................................................................................................................ 3-5
Grounding.......................................................................................................... 3-5
Power Installation............................................................................................... 3-6
3.7 Main Disconnect................................................................................................ 3-7
3.8 Signal Termination from Computer to Sign .......................................................... 3-7
RS/232 ..............................................................................................................3-7
RS/422 ..............................................................................................................3-8
Modem .............................................................................................................. 3-8
Fiber Optic ......................................................................................................... 3-8
3.9 Optional Temperature Sensor Electrical Installation.............................................. 3-9
3.10 First Time Turn On...........................................................................................3-10
Section 4: Maintenance & Troubleshooting................................................................. 4-1
4.1 Maintenance & Troubleshooting Overview .......................................................... 4-1
Table of Contents
ii
4.2 Recommended Tools List ....................................................................................4-1
4.3 Signal Summary................................................................................................. 4-2
4.4 Power Summary .................................................................................................4-2
4.5 Display Access................................................................................................... 4-2
4.6 Service & Diagnostics......................................................................................... 4-3
Line Filter.......................................................................................................... 4-3
Modules, Pixel Strips & Drivers.......................................................................... 4-3
Controller........................................................................................................... 4-5
Modem .............................................................................................................. 4-6
Fiber Board........................................................................................................ 4-7
Power Supplies ...................................................................................................4-7
4.7 Optional Temperature Sensor Electrical Installation.............................................. 4-8
4.8 Ventilation Systems ............................................................................................ 4-9
4.9 Thermostats ....................................................................................................... 4-9
4.10 Sign Maintenance ...............................................................................................4-9
4.11 Weather Stripping ............................................................................................. 4-10
4.12 Troubleshooting ...............................................................................................4-11
4.13 Boot Up Initialization Information ..................................................................... 4-12
4.14 Replacement Parts List......................................................................................4-12
4.15 Daktronics Exchange/Repair & Return Programs ................................................ 4-13
Appendix A: Reference Drawings .....................................................................................A-1
Appendix B: Signal Converter ...........................................................................................B-1
Table of Contents
List of Figures
Figure 1: Drawing Label.............................................................................................................1-2
Figure 2: Controller ....................................................................................................................1-4
Figure 3: Module Numbering Example – 24x80 Front ...................................................................1-6
Figure 4: Module Numbering ......................................................................................................1-6
Figure 5: Typical Label...............................................................................................................1-6
Figure 6: Lifting the Sign ............................................................................................................2-2
Figure 7: Temperature Sensor Eave/Wall Mount ...........................................................................2-3
Figure 8: Temperature Sensor Mounting to Bottom of Display ......................................................2-4
Figure 9: Ribbon Cable Connector...............................................................................................3-1
Figure 10: Termination Block......................................................................................................3-1
Figure 11: Phoenix Connector .....................................................................................................3-1
Figure 12: Mate -n-Loc Connector................................................................................................3-2
Figure 13: Fiber Optic Cable .......................................................................................................3-2
Figure 14: RJ11 Connector..........................................................................................................3-2
Figure 15 : 6-Conductor RJ11 Connector and Cable.......................................................................3-3
Figure 16: Flipped Cable with RJ Connectors ...............................................................................3-3
Figure 17: Wire with Outer Jacket Stripped ..................................................................................3-3
Figure 18: Installation with Ground and Neutral Conductor Provided.............................................3-6
Figure 19: Installation with only Neutral Conductor Provided........................................................3-7
Figure 20: Driver Board ..............................................................................................................4-4
Figure 21:Controller ...................................................................................................................4-5
Figure 22: Modem Board............................................................................................................4-6
Figure 23: Fiber Optic Board.......................................................................................................4-7
Figure 24: Signal Converters..........................................................................................................1
List of Figures iii
1-1
Section 1: Introduction
1.1 How to Use This Manual
This manual explains the installation, maintenance and troubleshooting of the 89 mm AF-3090 Galaxy
signs. For questions regarding the safety, installation, operation or service of this system, please refer
to the telephone numbers listed on the cover page of this manual.
Important Safeguards:
1. Read and understand these instructions before installing.
2. Properly ground the display with a ground rod for each face, at the display location.
3. Disconnect power when servicing the display.
4. Do not modify the display structure or attach any panels or coverings to the display without the
written consent of Daktronics, Inc.
The manual contains four sections: Introduction, Mechanical Installation, Electrical Installation, and
Maintenance & Troubleshooting.
• Introduction covers the basic information needed to make the most of the rest of this manual.
Take time to read the entire introduction as it defin es terms and explains concepts used throughout
the manual.
• Mechanical Installation provides general guidance on sign mounting.
• Electrical Installation provides general guidance on terminating power and signal cable at the
sign.
• Maintenance & Troubleshooting addresses such topics as removing basic sign components,
troubleshooting the sign, performing general maintenance and exchanging sign components.
The end of this manual contains three appendices:
• Appendix A includes the drawings referenced in this manual
• Appendix B contains information on the signal converter
Daktronics identifies manuals by an ED number located on the cover page of each manual. For
example, Daktronics refers to this manual as ED-13288.
Daktronics, commonly uses a number of drawing types, along with the information that each provides.
This manual might not contain all these drawings.
• System Riser Diagrams: overall system layout from control computer to sign, power and phase
requirements.
• Shop Drawings: fan locations, mounting informa tion, power and signal entrance points and
access method (front and rear).
• Schematics: power and signal wiring for various components.
• Display Assembly: locations of critical internal sign components such as power supply
assemblies, controller boards, thermostats and light detectors.
Figure 1 illustrates Daktronics drawing label. The lower-right corner of the drawing contains the
drawing number. The manual identifies the drawings by listing the last set of digits and the letter
preceding them. In the example below, the manual refers to the drawing as Drawing A-69945.
Appendix A contains all reference drawings.
Introduction
1-2
Figure 1: Drawing Label
This manual shows all references to drawing numbers, appendices, figures or other manuals in bold
typeface, as shown below.
“Refer to Drawing A-69945 in Appendix A for the power supply location.”
Additionally, the manual lists drawings referenced in a particular section at the beginning of that
section as seen in the following example:
Reference Drawings:
Component Placement Diagram...............................................................Drawing A-69945
Daktronics builds displays for long life and that require little maintenance. However, from time to
time, certain sign components need replacing. The Replacement Parts List in Section 4.11 provides
the names and part number of components that you may need to order during the life of the sign. Most
sign components have a white label that lists the part number. The component part number is in the
following format: 0P -XXXX-XXXX (circuit board) or 0A-XXXX-XXXX (multi-component
assembly).
Following the Replacement Parts List is the Exchange/Replacement Procedure in Section 4.11.
Refer to these instructions if any sign component needs replacement or repair.
1.2 Network Concepts
The concept of using LED displays as cost effective, high impact method of communication is rapidly
growing throughout many industries and businesses. The reasons for this growth are many, but the
need for additional features and complexity of multiply display installations has emerged, and
Daktronics display system have been designed to meet those needs.
The common thread to most client requests is a means of programming and controlling a group of
displays from a central control point. Daktronics responded by developing a powerful system of
interconnecting and controlling displays. Great care has been taken to design products that will satisfy
a wide variety of installations. Some of the design goals of these systems include the following:
• Easy transfer of messages
• The ability to tell a dis play or group of displays in the network which message should run
• The ability to determine the status of any display on the network
• The ability to control multiple display technologies on the same network
Tools required for mounting the display depend on the location and size of the display. For some
installations, it may be possible to by pre-terminated telephone cables for use with the displays.
There are four (4) network systems available: RS232, RS422, modem, and fiber. Up to 240 displays
can exist one network.
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
RR
CCC
89
X
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-
= Outdoor 89 mm Louve red Galaxy Sign
= Number of Rows High (8, 16, 24, and 32 are available)
= Number of Columns Long (32, 48, 64, 80, 96, and 112 are available)
= 89 mm center-to-center pixel spacing
= LED Color (monochrome red or monochrome amber are available)
Introduction
1-4
sided stand-alone signs. They can become double-faced by mounting them back-to-back with a second
unit.
The Venus® 1500 software controls the AF-3090 Galaxy display system. Refer to ED-12717 for
operation of the Venus 1500 controller.
1.4 Component Identification
The following illustrations and definitions depict some of the more commonly accessed Galaxy sign
components. Because Daktronics occasionally alters standard design to meet customer needs, the
actual sign design may vary slightly from the illustrations below.
This is only a brief overview. Refer to Section 4 for detailed information on maintaining and
troubleshooting various sign components.
Com Port: a connector on the back of the control computer. The COM port controls the sign through
either a 9- or a 25-pin serial connector.
Controller: The display’s controller is the “brains” of the display. The controller receives signal
information from the control computer, translates it, and activates the appropriate pixels on the display
accordingly.
Figure 2: Controller
Fiber Optic: a technology that uses glass (or plastic) threads (fibers) to transmit data from the
controller to the display. A fiber optic cable consists of a bundle of glass threads, each of which
transmits messages modulated onto light waves.
Galaxy : Daktronics trademarked name for LED monochrome or tri-colored matrix signs.
Network: consists of multiple signs connected to each other.
Power Supply: converts AC line voltage from the load center to low DC voltage for one or more
module driver boards.
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 identificatio n 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.
Figure 3: 8x8 Pixel Module (Front and Rear)
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.
Introduction
1-6
Pixel Strip: four LED pixels mount directly onto a pixel strip. Each pixel strip is removable from the
module.
1.5 Daktronics Nomenclature
To fully understand some Daktronics
drawings, such as schematics, it is
necessary to know how those drawings
label various components. This
information is also useful when trying to
communicate maintenance or
troubleshooting efforts.
A module is the building block of the
Galaxy sign. Each module measures 8 pixels high by 8
pixels wide. By placing modules side -by-side and on top of
one another, Daktronics can design and build signs of any
size. A person can easily remove individual modules from
the sign if required. Figure 3 illustrates how Daktronics
numbers modules on a Galaxy sign. Figure 4 breaks down
the module numberin g method.
The label “A” on a drawing typically denotes an assembly.
An assembly is a single circuit board or a collection of
components that function together and usually mount on a
single plate or in a single enclosure. Daktronics divides assemblies into two types, those that route
signal and those that route power.
In addition, various Daktronics drawings may contain the following labeling formats:
• “TBXX” denotes a termination block for power or signal cable.
• “FXX” denotes a fuse.
• “EXX” denotes a grounding point.
• “JXX” denotes a power or signal jack.
• “PXX” denotes a power or signal plug for the opposite jack.
Finally, drawings commonly have Daktronics part numbers. You can use those part numbers when
requesting replacement parts from Daktronics Customer Service. Take note of the following part
number formats.
• “0P-XXXX-XXXX” denotes an individual circuit board, such as a line receiver.
• “0A-XXXX-XXXX” denotes an assembly, such as a circuit board and the plate or bracket to
which it mounts. A collection of circuit boards working as a single unit may also carry an
assembly label.
• “W-XXXX” denotes a wire or cable. Cables may also carry the assembly
numbering format in certain circumstances. This is especially true of
ribbon cables.
• “F-XXXX” denotes a fuse.
Most circuit boards and components within this sign carry a label that lists the part number of the unit.
If the replacement parts list in Section 4.15 does not list a circuit board or assembly, use the label to
order a replacement. Figure 5 illustrates a typical label. The part number is in bold.
Figure 3: Module Numbering Example – 24x80 Front
Figure 4: Module Numbering
Figure 5: Typical Label
Introduction
2-1
Section 2: Mechanical Installation
LNote: Daktronics does not guarantee the warranty in situations where the sign is not constantly in
a stable environment.
Daktronics engineering staff must approve any changes that may affect the weather-tightness of the
sign. If you make any modifications, you must submit detailed drawings of the changes to Daktronics
for evaluation and approval, or you may void the warranty.
Daktronics is not responsible for installations or the structural integrity of support structures done by
others. The customer is responsible to ensure a qualified structural engineer approves the structure and
any additional hardware.
2.1 Mechanical Installation Overview
Because every installation site is unique, Daktronics has no single procedure for mounting Galaxy
signs. This section contains general information only and may or may not be appropriate for your
particular installation.
A qualified installer must make all decisions regarding the mounting of this sign.
Read both the mechanical and electrical installation sections of this manual before beginning
any installation procedures.
2.2 Support Structure Design
Support structure design depends on the mounting methods, sign size and weight. The structure design
is critical; only a qualified individual should mount the sign. Sign height and wind loading are also
critical factors. It is the customer’s responsibility to ensure that the structure and mounting hardware
are adequate. Daktronics is not responsible for the installations or the structural integrity of support
structures done by others.
The installer is responsible to ensure the mounting structure and hardware are capable of
supporting the sign and agrees with local codes.
Before beginning the installation process, verify the following.
• The mounting structure provides a straight and square frame for the sign.
• The mounting structure supports the sign without yielding at any unsupported points after
mounting.
• Clearance: 3 ″ of unobstructed space is available below the sign for ventilation. 1 ¼″ of
unobstructed space is available above the top of the sign.
Correct any deficiencies before installation.
Mechanical Installation
2-2
2.3 Ventilation Requirements
Reference Drawings:
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
Fans mounted in the backsheets toward the top of the display allow for ventilation. Maintain a
minimum distance of 3″ (7.62 cm) below the sign to maintain proper airflow. Refer to the appropriate
shop drawing for additio nal information.
If the sign cabinet is completely enclosed:
• Provide 6 square inches of unobstructed opening per module to ensure adequate cooling.
• Make allowances to compensate for the percentage of material covering the openings in the
structure.
• For adequate cooling, the cabinet may require forced ventilation. If the enclosed cabinet must use
forced ventilation, it must ventilate at a rate of 10 cubic feet per minute per module (28″ x 28″
active area).
Failure to comply with these requirements voids the Galaxy sign warranty.
2.4 Lifting the Sign
The top of the sign has eyebolts to lift the unit. Do not exceed the rated load of the eyebolts. Refer to
the information at the end of this section labeled Eyebolts to determine the allowable load of the
eyebolts shipped with the sign.
Figure 6 illustrates both the correct (left example) and the incorrect (right example) method of lifting
a sign. Lift the sign as shown on the
left, with the lifting bar. Use every
lifting point provided!
Do not attempt to permanently
support the sign by the eyebolts.
If you remove the eyebolts,
adequately seal the holes using ½13 bolts and sealing washers.
Figure 6: Lifting the Sign
Silicone along the threads to ensure water does not enter the sign.
2.5 Sign Mounting
Reference Drawings:
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
The method used to mount signs varies greatly from location to location. For this reason the manual
covers only general mounting topics.
Mechanical Installation
2-3
The installer is responsible to ensure the installation will adequately meet local codes and
(Supplied by Daktronics)
standards. The installer is also responsible for the mounting method and hardware.
Before beginning the installation process, verify the following items.
• The mounting structure will provide a straight and square frame for the sign. Height variation in
any four-foot horizontal section may not exceed ¼- inch.
• The mounting structure will not give way at any unsupported points after the sign is mounted.
The back of the sign uses 3x2x3/8″ steel clip angles at the locations shown in Drawings B -160986, B-
160987, B -160988 and B-160989. These angles assist in mounting the sign. Remember to have all
mounted signs inspected by a qualified structural engineer.
The customer must have a qualified structural engineer review the number of attachment points
needed and the wall structure to ensure both meet all national and local codes. Daktronics
recommends using all clip angles as attachment points.
1. Carefully uncrate the sign. Look each side of the sign over for damage during shipping.
2. Following the guidelines described in Section 2.4, lift the sign into position on the support
structure using all provided eyebolts.
3. Weld or use ½O Grade -5 bolts and hardware to secure the clip angles to the support structure as
shown in Top View in Drawings B -160986, B-160987, B-160988 and B-160989.
4. Refer to Section 3 for information on routing power and signal.
5. Upon completing the installation, carefully inspect the sign for any holes that may allow
water to seep into the sign. Seal any openings with silicone. If you remove the eyebolts on the
top of the sign, plug the holes with bolts and the rubber sealing washers that you removed
with the eyebolts. Silicone the threads on the bolts.
2.6 Optional Temperature Sensor Mounting
The Temperature Sensor mounts separately
and requires a location away from the
influence of chimneys, air conditioners, vents,
tar roofs, concrete, and parking lots, which can
cause abnormal temperature fluctuations.
Usually, a separation of at least 20-30 feet
horizontally and 8 feet vertically is required to
achieve this. Locations where air movement is
restricted are also unsatisfactory. Refer to
Drawing A-79767.
Temp Sensor Housing
(Supplied by Daktronics)
Conduit Outlet Body
The ideal sensor loc ation is a north eaves or a
northern exposure, above grass and away from
direct sunlight. This location gives extra
stability and accuracy to the sensor because of
1/2” Conduit
(Supplied by Customer)
the added shading usually obtained on a
northern exposure. See Figure 7 for details.
Figure 7: Temperature Sensor Eave/Wall Mount
The second choice for locating a temperature sensor is on the display itself, or somewhere on the
display structure. A light-colored display is preferred in this application. Location of the sensor should
be above, belo w, or on a northern edge of the display to keep the sensor shaded. If mounting above the
1.0’
Mechanical Installation
2-4
display, a minimum height of above 6 feet is required. If mounting below the display, a minimum of 8
Bottom of Display
or Display Section
(Supplied by Customer)
(Supplied by Daktronics)
(Supplied by Daktronics)
feet above ground and a minimum of 1 foot between the sensor and the display is required, as seen in
Figure 8.
Greater accuracy is obtained if grass is below the sign rather than concrete or some other material.
1.0’
1/2” Conduit
Temp Sensor Housing
Conduit Outlet Body
Figure 8: Temperature Sensor Mounting to Bottom of
Display
Use a 2 pair, individually shielded cable (Belden 5594, Daktronics part number W-1234) to
connect the sensor to the display controller. Maximum length is 1000 feet.
Follow these steps to mount the temperature sensor.
1. Run ½” conduit from the sensor location to the controller where the sensor cable is to be
attached. The cable must be routed through ½” metal conduit which should be earth
grounded to protect the sensor and controller from lightning damage.
2. Power down the controller where the sensor cable is to be attached.
3. Connect the cable to the temperature sensor terminal block as shown below. (Refer to
Drawing A-79410 for the location of the terminals.)
Black = GND
White =
Green =
N
P
Red = +V
4. Install the mesh screen with the four screws enclosed.
5. Connect the cable to the display controller as described in the controller installation
manual. Power up the controller.
Mechanical Installation
3-1
Section 3: Electrical Installation
Only a qualified individual should terminate power and signal cable within this Daktronics sign!
The Daktronics engineering staff must approve ANY changes made to the sign. Before altering the
sign, submit detailed drawings for the proposed modifications to the Daktronics engineering staff for
evaluation and approval or you will render the warranty null and void.
3.1 Common Connectors in the Sign
The power and signal connections in the signs use many different types of
connectors. Take special care when disengaging any connector so as not to
damage the connector, the cable or the circuit board.
When pulling a connector plug from a jack, do not pull on the wire or
cable; pull on the jack itself. Pulling on the wires may damage the
connector.
The following information presents some common connectors encountered
during sign installation and maintenance.
1. Ribbon Cable Connectors:
Figure 9 illustrates a typical ribbon connector. To disconnect the ribbon cable,
push the metal clips on the sides to unlock and remove the jack.
Before replacing a ribbon cable connector, spray it with DeoxITJ contact
cleaner to remove any foreign matter that may cause signal problems. In
addition, apply a generous amount of CaiLube J protector paste to the plug
before inserting it into the jack. This paste protects both the plug and the jack
from corrosion.
2. Termination Blocks:
Termination blocks connect internal power and signal wires to wires of the
same type coming into the sign from an external source. Most signal wires
come with forked connectors crimped to the ends of the wire. Power wires
need to have one -half inch of insulation stripped from the end of the wire prior
to termination. Tighten all screws firmly to ensure a good electrical
connection. Refer to Figure 10.
3. Phoenix-Style Connectors:
Phoenix-style connectors, usually green, allow for signa l termination on circuit
boards. Refer to Figure 11. Strip one -quarter inch of insulation from the wire
prior to termination. To remove a wire, turn the above screw counterclockwise to loosen the connectors grip on the wire. To insert a wire, push the
bare wire into the connector and turn the above screw clockwise to lock the
wire into place.
Figure 9: Ribbon
Cable Connector
Figure 10: Termination
Block
Figure 11: Phoenix
Connector
Electrical Installation
3-2
4. Mate -n-Lok Connectors:
The white Mate -n-Lok connectors found in the signs come in a variety of sizes.
Figure 12 illustrates a five -pin Mate-n-Lok connector. To remove the plug from
the jack, squeeze the plastic locking clasps on the side of the plug and pull it from
the jack.
5. Fiber Optic Connectors:
A fiber optic cable has a “twist-on” connector
at each end. To remove the fiber plug, push it
toward the board and twist it counter-clockwise
Figure 12: Maten-Loc Connector
until you can pull the plug from the jack.
Figure 13 shows this connector.
Figure 13: Fiber Optic Cable
6. Phone Jacks (RJ11 Connectors):
RJ connectors, as seen in Figure 14, are similar to the telephone connectors
found in homes. In order to remove this plug from the jack, depress the small
clip on the underside of the plug.
Before replacing an RJ connector, spray it with DeoxIT™ contact cleaner to
remove any foreign matter that may cause signal problems. In addition, apply
a generous amount of CaiLube™ protector paste to the plug before inserting it
into the jack. This paste will protect both the plug and the jack from corrosion.
Figure 14: RJ11
Connector
3.2 Control Cable Requirements
RS232
This cable is a 2-conductor shielded cable used to transmit an RS232 signal (Daktronics part
number W-1117). This shielded cable should not be subjected to mechanical flexing after
installation. This cable is not for direct burial and should be routed in a dedicated, grounded
metallic conduit at the base of the sign structure. This cable has a maximum length of 25 feet.
RS422
This cable is a 6-conductor shielded cable used to transmit an RS422 signal (Daktronics part
number W-1210). This shielded cable consists of unpaired wires. They should not be subjected to
mechanical flexing after installation. This cable is not for direct burial and should have one of the
following routings:
• In dedicated metallic conduit
• Inside buildings-if cable is not in conduit, keep away from interface signals
With interface signals (such as power conductors, intercom, etc.) typically a two-foot separation is
required. The maximum length of an RS422 signal cable is 4,000 feet (1.22 km).
Modem
The modem option will use standard telephone cable routed through conduit. The local telephone
company will need to assist in this installation.
Ask the telephone company which colors are used by the TIP and the RING for signal hook up.
NOTE: The telephone lines must be dedicated lines and not run through a switchboard system.
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3-3
Fiber Optic
This cable is a 4-fiber cable (Daktronics part number W-1376). Two fibers are used for display
communications and the other two are saved for spares. The cable may be eithe r direct burial or
routed in conduit but should not be subjected to mechanical flexing. The maximum length of a
fiber optic cable is 2,000 feet (611.6 meters).
3.3 RJ Connector Cables
The connector used for RS/232 input to the display is
an industry standard, 6-pin RJ11. This connector can
be found on many telephones and LANs.
The cable used in the network is a standard flat six
conductor telephone cable (standard flipped cable).
Refer to Figure 15. This cable has one end that is the
mirror image of the other end (i.e. the cable is
flipped). Refer to Figure 16 for a standard flipped
cable.
Notice in Figure 16 that the color code on one connector must be made the opposite on the other
connector. When installing a network, it is not easy to remember in which direction the previous end
was oriented. One simple way to avoid confusion is to standardize the color code, having one color for
the connector going into the output of a sign and the opposite color for a connector going into the
input of a sign. This will help ensure correct cabling since cables are always installed from the output
jack of one sign to the input jack of the next sign.
Figure 15: 6-Conductor RJ11 Connector and
Cable
Figure 16: Flipped Cable with RJ Connectors
Installing an RJ Connector
Installing an RJ connector on the end of the conductor cable is a simple task when the correct
tools are used. The RJ crimping tool (Daktronics part number TH-1033) performs two separate
steps
First, use the crimping tool to strip the outer insulation from the inner
wires. This does not result in bare wires since only the gray outer
jacket is removed. After correct stripping, the wire will appear as
shown in Figure 17.
The crimping tool is then used to crimp the RJ connector onto the
cable. The RJ connector is locked into a special socket in the tool. The stripped wire is inserted
into the RJ connector. Finally, the tool is squeezed like pliers to crimp the connector onto the wire.
This completes the installation of an RJ connector onto the wire.
Electrical Installation
Figure 17: Wire with
Outer Jacket Stripped
3-4
Pin Outs
RJ11
Function
The RS422 jack’s pin out is as follows:
RJ11 Function
1 Ground
2 D1OUT-P
3 D1OUT-N
4 D1IN-P
5 D1IN-N
6 GROUND
3.4 Conduit
Reference Drawings:
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 does not include the conduit. Refer to Drawings B-160986, B-160987, B-160988 and B-
160989 for approximate locations of power and signal conduit. You must use separate conduit to
route:
• Power
• Signal IN wires
• Signal OUT wires (if another sign requires signal)
Locate the conduit holes at the bottom right (rear view) of the back of the sign (refer to Drawings B160986, B -160987, B-160988 and B-160989).
Punch or drill out the desired conduit openings. Be careful not to damage any internal components.
Attach the conduit and route the power and signal cables. Refer to Drawing A-129227 for a picture of
the power and signal termination panels.
LFor signs with more than one face, signal and temperature sensor wiring between signs can route
through the same conduit.
3.5 Preparing for Power/Signal Connection
Reference Drawings:
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
Schematic, AF-3090-8-32x***-24, Mono................................................Drawing B-161855
Display Assembly................................................................................................Appendix A
1. If the display needs openings for the power and signal, punch out the knockouts in the lower right
corner from the rear. Refer to Drawings B -160986, B-160987, B-160988 and B-160989.
2. With a 7/32″ nutdriver, apply pressure to latch and turn it a quarter-turn counter-clockwise. The
module door will swing open to the left.
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3-5
3. Route power to the display through a fused disconnect switch capable of opening all ungrounded
power conductors. Locate this disconnect within the line of sight of any personnel performing
maintenance on the display. If the disconnect is located out of sight of the display, it must be
capable of being locked in the open position.
4. Power conductors from the disconnect to the display must route through conduit in agreement
with local codes.
5. You may also route the signal cable from the control computer to the sign at this time. Run the
power and signal cables in a separate conduit.
3.6 Power
Reference Drawings:
AF-3090 Controller Assembly, RS232/422.............................................Drawing A-158254
Power Specs, AF-3090, Amber...............................................................Drawing A-158396
AF-3090 Controller Assembly Modem ....................................................Drawing A-162098
AF-3090 Controller Assembly Fiber........................................................Drawing A-162099
Power Specs, AF-3090, Red LEDs.........................................................Drawing A-162439
Schematic, AF-3090-8-32x***-24, Mono................................................Drawing B-161855
Refer to Drawings A-158396 and A-162439 for voltage and current requirements for your sign size.
Each uses a 120/240VAC single-phase or 120/208 three-phase power source.
Do not connect the signs to any voltage other than that listed on the Daktronics product label.
Proper power installation is imperative for proper display operation. The following sub-sections give
details of display power installation. Electrical installations must be performed by qualified personnel.
Unqualified personnel should not attempt to install the electrical equipment. Serious danger to
equipment and personnel could occur if equipment is improperly installed.
Grounding
Displays MUST be grounded according to the provisions outlined in Article 250 of the
National Electrical Code®. Daktronics recommends a resistance to ground of 10 ohms or less.
Verification of ground resistance can be performed by the electrical contractor who is performing
the electrical installation. Daktronics Sales and Service personnel can also perform this service
The display system must be connected to earth-ground. Proper grounding is necessary for reliable
equipment operation. It also protects the equipment from damaging electrical disturbances and
lightning. The display must be properly grounded or the warranty will be void.
A minimum of one grounding electrode must be installed for each display face. The grounding
electrode is typically one grounding rod for each display face. Other grounding electrodes as
described in Article 250 of the National Electric Code may be used. Daktronics recommends that
the resistance to ground be 10 ohms or less. If the resistance to ground is higher than 10 ohms it
will be necessary to install additional grounding electrodes to reduce the resistance. The
grounding electrode should be installed within 25 feet of the base of the display. The grounding
electrode must be connected to the ground terminal in the display panelboard.
This grounding electrode must be installed in addition to the equipment grounding conductor that
should be part of the power installation. The material of an earth-ground electrode differs from
region to region and from conditions present at the site. The support structure of the display
cannot be used as an earth ground electrode. The support is generally embedded in concrete, and
if in earth, the steel is either primed or it corrodes, making it a poor ground. The grounding
Electrical Installation
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