Daktronics AF-3180-64-R,A User Manual

Galaxy® Outdoor

Series AF-3180

Display Manual

ED14211 Rev 0 17 October 2003

331 32nd Ave PO Box 5128 Brookings SD 57006
Tel [phone] or 877-605-1113 Fax [phone]
www.daktronics.com e-mail: [e-mail]

Rev 0 – 17 October 2003

ED14211

Product 1308

DAKTRONICS, INC.

Copyright © 2002-2003

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.

®

is a registered trademarks of Daktronics, Inc. All others are trademarks of their respective companies.

Galaxy

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

Radio 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........................................................................................... 2-3

2.6 Optional Temperature Sensor Mounting ...................................................2-4

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.......................................................................................................3-3

Fiber Optic.................................................................................................3-3

Radio .........................................................................................................3-3

3.3 RJ Connector Cables .................................................................................3-3

Installing an RJ Connector......................................................................... 3-4

3.4 Conduit......................................................................................................3-4

3.5 Preparing for Power/Signal Connection....................................................3-5

3.6 Power.........................................................................................................3-5

Grounding..................................................................................................3-5

Power Installation...................................................................................... 3-6

3.7 Main Disconnect........................................................................................3-8

3.8 Signal Termination from Computer to Sign..............................................3-8

RS/232....................................................................................................... 3-8

RS/422..................................................................................................... 3-10

Modem..................................................................................................... 3-11

Fiber Optic...............................................................................................3-12

Venus® 1500 Radio Client.......................................................................3-13

RS422 Interconnection............................................................................ 3-15

3.9 Optional Temperature Sensor Electrical Installation............................... 3-16

3.10 First Time Operation ............................................................................... 3-18

Section 4: Maintenance and Troubleshooting..............................................4-1

Table of Contents i

Maintenance and Troubleshooting Overview............................................4-1

4.1

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 and Diagnostics.............................................................................4-3

Line Filter..................................................................................................4-3

Modules and Drivers..................................................................................4-4

Controller...................................................................................................4-5

Modem.......................................................................................................4-8

Fiber Board................................................................................................ 4-9

RS422 Surge Suppressor ...........................................................................4-9

Power Supplies ........................................................................................4-11

4.7 Ventilation Systems.................................................................................4-12

4.8 Thermostats .............................................................................................4-12

4.9 Sign Maintenance....................................................................................4-12

4.10 Weather Stripping....................................................................................4-13

4.11 Troubleshooting.......................................................................................4-13

4.12 Initial Operation Information...................................................................4-14

4.13 Replacement Parts List............................................................................4-14

4.14 Daktronics Exchange and Repair and Return Programs..........................4-15

Appendix A: Reference Drawings .....................................................................A-1

Appendix B: Signal Converter ...........................................................................B-1

ii

Table of Contents

List of Figures

Figure 1: Drawing Label..................................................................................................1-2

Figure 2: Controller........................................................................................................1-4

Figure 3: 4x8 Pixel Module (Front and Rear) ....................................................................... 1-5

Figure 4: Signal Converter ...............................................................................................1-6

Figure 5: Module Numbering Example – 24x64 Front ............................................................1-6

Figure 6: Module Numbering ............................................................................................1-6

Figure 7: Typical Label....................................................................................................1-7

Figure 8: Lifting the Sign (left; correct) and (right; incorrect)..................................................2-2

Figure 9: Temperature Sensor Eave/Wall Mount ...................................................................2-4

Figure 10: Temperature Sensor Display Mount.....................................................................2-4

Figure 11: Ribbon Cable Connector ...................................................................................3-1

Figure 12: Termination Block............................................................................................3-1

Figure 13: Phoenix Connector...........................................................................................3-1

Figure 14: Mate-n-Loc Connector......................................................................................3-2

Figure 15: Fiber Optic Cable............................................................................................3-2

Figure 16: RJ11 Connector............................................................................................... 3-2

Figure 17: 6-Conductor RJ11 Connector and Cable...............................................................3-3

Figure 18: Flipped Cable with RJ Connectors.......................................................................3-4

Figure 19: Wire with Outer Jacket Stripped..........................................................................3-4

Figure 20: Display Grounding...........................................................................................3-6

Figure 21: Installation with Ground and Neutral Conductor Provided........................................3-7

Figure 22: Installation with only Neutral Conductor Provided..................................................3-7

Figure 23: Signal Termination...........................................................................................3-8

Figure 24: RS232 Display Layout.......................................................................................3-9

Figure 25: J-Box to RS232 Input on the Controller.................................................................3-9

Figure 26: RS422 Display Layout.....................................................................................3-10

Figure 27: Signal Converter to Surge Board in Display.........................................................3-10

Figure 28: Modem Display Controller...............................................................................3-11

Figure 29: Modem/ Signal..............................................................................................3-12

Figure 30: Fiber Display Controller .................................................................................3-12

Figure 31: Fiber Signal Connections.................................................................................3-13

Figure 32: Radio Display Controller.................................................................................3-14

List of Figures iii

Figure 33: Client Radio Connections................................................................................3-14

Figure 34: RS422 Interconnection....................................................................................3-15

Figure 35: CAN Temp Sensor Wiring................................................................................3-16

Figure 36: CAN Temp Sensor to Controller........................................................................3-17

Figure 37: Three Phase Power Term Panel..........................................................................4-3

Figure 38: Driver Board..................................................................................................4-4

Figure 39:Controller.......................................................................................................4-5

Figure 40: Modem Board................................................................................................. 4-8

Figure 41: Modem/Signal.................................................................................................4-8

Figure 42: Fiber Optic Board ...........................................................................................4-9

Figure 43: Surge Suppressor.................................................................................... 4-9

Figure 44: Displays with No External Temperature Sensor....................................................4-10

Figure 45: Displays with External Temperature Sensor ........................................................4-10

Figure 46: CAN Temperature Sensor ................................................................................ 4-11

Figure 47: Signal Converters........................................................................................... A-1

iv

List of Figures

Section 1: Introduction

1.1 How to Use This Manual

This manual explains the installation, maintenance, and trou bleshooting of the 64mm
AF-3180 Galaxy

®

displays. 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 six sections: Introduction, Mechanical Installation, Electrical
Installation, Maintenance and Troubleshooting, Appendix A, and Appendix B.

•

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 defines
terms and explains concepts used throughout the manual.

•

Mechanical Installation provides general gu i dance o n si gn mounting.

•

Electrical Installation gives general guidance on terminating power and
signal cable at the sign.

•

Maintenance and Troubleshooting addresses such topics as removing
basic sign components, troubleshooting the sign, performing general
maintenance and exchanging sign components.

•

Appendix A lists the drawings included within the manual.

•

Appendix B includes information about 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 ED14211.

Daktronics, commonly uses a number of drawing types, along with the information
that each provides. This manual might not contain all of these drawings:

•

System Riser Diagrams: overall system layout from control computer to
sign, power and phase requirements.

•

Shop Drawings: fan locations, mounting information, 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.

Introduction

1-1

Figure 1 below 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.

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 Drawing:

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 4.13 provides the names and numbers of components that may need
to be replaced 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-_ _ _ _-_ _ _ _ (circuit board) or 0A-_ _ _ _-_ _ _ _ (multi-component assembly).

Following the Replacement Parts List is the Exchange and Repair and Return
Programs in Section 4.14. 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 multiple display installations has emerged. Daktronics display systems 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 display 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

1-2

Introduction

Tools required for mounting the display depend on the location and size of the
display. For some installations, it may be possible to use pre-terminated telephone
cables for use with the displays.

There are five (5) network systems available: RS232, RS422, modem, fiber, and

o. One network system can operate up to 240 display s .

radi

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 of 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.

Radio Network

The Radio network is a standard communication method that uses radio waves at
high frequencies to transmit signal. The Venus
distance of 1500 feet. A nearly straight line-of-sight path must be maintained
between the Server Radio connected to the computer and the Client Radio connected
to the display. Refer to Section 3 and ED13932 for the additional information.

1.3 Sign Overview

Reference Drawings:

Power Specs, AF-3180, Amber LE

Power Specs AF-3180, Red LEDs...............................Dra

Shop Drawings

Daktronics designs and manufactures AF-3180 Galaxy® signs for performance,
reliability, easy maintenance, and long life. The pixels have a 64mm center-to-center
spacing and LEDs (light emitting diodes). Each sign section has minimum 18-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 display ordered.

........................................................................Appendix A

®

1500 Radio network has a maximum

Ds .........................Drawing A-192935

wing A-192937

Introduction

1-3

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-3180-RRCCC-64-X

Outdoor 64mm Louvered Galaxy Sign

AF-3180
RR

CCC

64
X

=

Number of Rows High (8, 16, 24, and 32 are available)

=

Number of Columns Long (32, 48, 64, 80, 96, and 112 are

=

available)
64mm center-to-center pixel spacing

=

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 single­face units, which are single-sided stand-alone displays. They can become double­faced by mounting them back-to-back with a second unit.

The Venus
ED13530 for operation of the Venus

®

1500 software controls the AF-3180 Galaxy® display system. Refer to

®

1500 software.

1.4 Component Identification

The following illustrations and definitions depict some of the more commonly
accessed Galaxy

®

display components. Because Daktronics occasionally alters
standard design to meet customer needs, the actual display 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 display components.

Com Port: Connector on the back of the control computer. The COM port controls
the display through either a 9- or a 25-pin serial connector.

Controller: The display’s controller is the “brains” of the display. The controller
receives, translates, and activates the signal information from the control computer to
the appropriate pixels on the display.

1-4

Figure 2: Controller

Introduction

Driver: Circuit board responsible for switching the intensity levels of the LEDs. The
driver mounts on the back of the module.

Fiber Optic: Technology that uses glass (or plastic) threads (fibers) to transmit data
from the computer 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.

LED (light emitting diode): Low energy, high intensity lighting units.

Network: Consists of multiple signs connected to each other.

Louver: Black shade positioned horizontally above each pixel row. The louvers

increase the level of contrast on the sign face and direct LED light.

Module: 64mm Galaxy

®

modules are 8 pixels high by 4 pixels wide. They consist of

a pixel board, louvers, and a driver.

Figure 3: 4x8 Pixel Module (Front and Rear)

Pixel: Cluster of LEDs. The number and color of the LEDs depends on the displays
application.

Pixel Board: The pixel board contains the LED clusters which mount into the metal
face panel. A module driver is attached to the back of each pixel board.

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)

Signal Converter: The signal converter, shown in
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.

Sign Address: The sign address is an identification
number assigned to each display of a network. It is set by
rotating hex 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: Daktronics designed, Windows® based

software used to create and edit messages on the display.
Refer to ED13530 for more information.

1.5 Daktronics Nomenclature

Figure 4on

Figure 4: Signal Converter

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.

Figure 5: Module Numbering Example – 24x64 Front

A module is the building block of the sign.
Each module measures 8 pixels high by 4
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 4 above illustrates how
Daktronics numbers modules on a Galaxy

®

sign. Figure 5 on the right breaks down the
module numbering method.

Figure 6: Module Numbering

1-6

Introduction

In addition, various Daktronics drawings may contain the following labeling formats:

• “TB_ _” shows a termination bloc k f or pow er or si g nal cable.

• “F_ _” denotes a fuse.

• “E_ _” signifies a grounding point.

• “J_ _” stands for a power or signal jack.

• “P_ _” represents a power or signal pl u g fo r t he op po si t e ja ck.

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-_ _ _ _-_ _ _ _” gives the form of an individual circuit board, such as a

line receiver.

• “0A-_ _ _ _-_ _ _ _” represents 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-_ _ _ _” indicates a wire or cable. Cables may also carry the assembly

numbering format in certain circumstances. This is especially true of ribbon
cables.

• “F-_ _ _ _” signifies 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 4.13 does not list a circuit
board or assembly, use the label to order a
replacement. Figure 6 on the right illustrates
a typical label. The part number is in bold.

Figure 7: Typical Label

Introduction

1-7

Section 2: Mechanical Installation

Daktronics engineering staff must approve any changes that may affect the weather-tightness
of the display. 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

tures done by others. The customer is responsible to ensure a qualified structural

struc

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
or may not be appropriate for your particular installation.

®

displays. This section contains general information only and may

A qualified installer must make all decisions regarding the mounting of this
display.

Read both the mechanical and electrical installati
before beginning any installation procedure.

2.2 Support Structure Design

Support structure design depends on the mounting methods, sign size and weight.
Since the structure design is critical, only a qualified individual should mount the
display. Display 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 instal
support structures done by others.

The installer is responsible to ensure the mounting structure and hardware is
capable of supporting the display and agrees with local codes.

Before beginning the installation proces s, 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 behind the sign for

ventilation. 1¼" of unobstructed space is available above the top of the sign.

Correct any deficiencies b

efore installation.

on sections of this manual

lations or the structural integrity of

Mechanical Installation

2-1

2.3 Ventilation Requirements

Reference Drawings:

Shop Drawings....................................................................... Appendix A

Fans mounted in the backsheets toward the top of the display allow for ventilation.
Maintain a minimum distance of 3" (7.62 cm) behind and below the display to
maintain proper airflow. Refer to the appropriate Shop Drawing for additional
information.

If the sign cabinet is completely enclosed:

• Provide 6 square inches of un obstructed opening per module to ens ure

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 (20" x 20" active area).

Failure to comply with these requirements voids the Galaxy® display warranty.

2.4 Lifting the Sign

2-2

Figure 8: Lifting the Sign (left; correct) and (right; incorrect)

The top of the display 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 display.

Figure 7 above 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 display by the eyebolts.

If you remove the eyebolts, adequately seal the holes using 13 bolts and sealing
washers, ½ inch in size. Silicone along the threads to ensure water does not enter the
display.

Mechanical Installation

2.5 Sign Mounting

Reference Drawings:

Shop Drawings

The method used to mount displays varies greatly from location to location. For this
reason the manual covers only general mounting topics.

The installer is responsible to
codes and standards. The installer is also responsible for the mounting method
and hardware.

Before beginning the installation proces s, verify the following items:

• The mounting structure will provide a straight and square frame for the

display. 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 display is mounted.

The back of the display uses 3x2x3/8" steel clip angles at the locations shown in the
Shop Drawings. These angles assist in mounting the sign. Remember to have all
mounted signs inspected by a qualified structural engineer.

The customer must ha
attachment points needed and the wall structure to ensure both meet all nationa l and
local codes. Daktronics recommends using all clip angles as attachment points.

arefully uncrate the display. Look all sides of the displays over for damage

1. C

during shipping.

2. Fol

3. W

4. (For

5. Upon

lowing the guidelines described in Section 2.4, lift the display into

position on the support structure using all provided eyebolts.

eld or use ½" Grade-5 bolts and hardware to secure the clip angles to the

support structure as shown in Top View in the Shop Drawings. Refer to

Section 3 for information on routing power and sig nal .

40 and 48 high Sectional Displays Only): Remove lift eyes from the

bottom section. Using all lift eyes provided, lift the top section over the
bottom section. Align the holes as required for 5/8" hardware. Secure
sections using 5/8" hardware, as shown in Shop Drawings. Connect power
using the mate-n-loc plugs provided with the display. Connect the signal by
routing the ribbon cable from the controller to the first driver in the row of
modules for those rows in the top section.

that may allow water to seep into the display. Seal any openings with
silicone. If you remove the eyebolts on the top of the display, plug the holes
with bolts and the rubber sealing washers that you removed with the
eyebolts. Silicone the threads on the bolts.

........................................................................Appendix A

ve a qualified structural engineer review the number of

completing the installation, carefully inspect the display for any holes

ensure the installation will adequately meet local

Mechanical Installation

2-3

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.

The ideal sensor location is a north eave
or a northern exposure, above grass and
away from direct sunlight. This location
gives extra stability and accuracy to the
sensor because of the added shading
usually obtained on a northern exposure.
See Figure 8 on the right for details.

The second choice for locating
a temperature sensor is on the
display itself, or somewhere on
the display structure. A light­colored display is preferred in
this application. Location of the
sensor should be above, below,
or on a northern edge of the
display to keep the sensor
shaded. If mounting below the
display, a minimum of 8 feet
above ground is required

Do not mount the sensor between the displays.

Greater accuracy is obtained if grass is below the sign rather than concrete or some
other material.

1. The temperature sensor will be connected to the display through a Quick

Connect input plug on the back of the first face. The sensor connects to the
display at J31. Remember to secure any excess cable to prevent vandalism.

2. The quick connect signal cable between displays connects both

communication and temperature signal, thus no additional wiring is
required from display to display for the temperature sensor.

Figure 9: Temperature Sensor Eave/Wall Mount

Figure 10: Temperature Sensor Display Mount

2-4

Mechanical Installation

Eyebolts

Almost every display that leav es D ak tronics is equipped w ith ey ebolts for lifting the display . There are
two standard sizes of eyebolts: ½″ and A″.

Load Increase Factor: The load increases as the lift angle (θ) decreases. The allowable load on the
eyebolts also decreases with the lift angle due the bending stress on the eyebolts. In sum, the smaller
the angle between the cable and the top of the display, the lighter the sign must be to safely lift it. Do

NOT attempt to lift the display when the lift angle is less than 30 degrees.

Horizontal Load Angle

Angle Factor (L/H)

90 1.00
60 1.155 90 2600 2600 4000 4000
50 1.305 60 1500 1299 3300 2858
45 1.414 45 650 460 1000 707
30 2.00 30 520 260 800 400

θθθθ

½”

Line Weight/ Line Weight/

Load Anchor Load Anchor

A

A”

AA

ED7244 Copyright 1996-2001
Rev. 4 – 14 March 2001 Daktronics, Inc.

Min.

A B C D E No.

Wx Wy Wz

1/4 1 3/4 1-3/16 25/32 21 600 2,000 Blank 1/4-20 7/8 400 100 80
3/8 1-1/4 1 1-21/32 1-3/16 23 2,100 5,000 Blank 3/8-16 1-1/8 1,400 350 250

1/2 1-1/2 1-3/16 2-1/16 1-13/32 25 3,900 9,200 Blank 1/2-13 1-11/32 2,600 650 520

9/16 1-5/8 1-9/32 2-13/16 1-17/32 26 4,500 11,830 Blank 9/16-12 1-3/8 3,000 750 600

5/8 1-3/4 1-3/8 2-1/2 1-11/16 27 6,000 14,700 Blank 5/8-11 1-9/16 4,000 1,000 800

3/4 2 1-1/2 2-13/16 1-13/16 28 9,000 21,700 Blank 3/4-10 1-5/8 6,000 1,500 1,200
7/8 2-1/4 1-11/16 3-1/4 2-1/16 29 10,000 30,000 Blank 7/8-9 1-13/16 6,600 1,670 1,330
1 2-1/2 1-13/16 3-9/16 2-5/16 30 12,000 39,400 Blank 1-8 2-1/16 8,000 2,000 1,600
1-1/2 3-1/2 2-9/16 5-1/2 3-5/32 34 27,000 91,300 Blank 1-1/2-6 3 17,800 4,500 3,600

Proof

Load
(lbs.)

Min.

Break

Load
(lbs.)

Stocked

Min.

Eff.

Thrd.

Length

Line Loads

A. Do not use eyebolts on angular lifts unless absolutely necessary. For angular lifts, the shoulder pattern

eyebolt is preferred.

B. Load should always be applied to eyebolts in the plane of the eye, not at some angle to this plane.

C. Shoulder eyebolts must be properly seated (should bear firmly against the mating part), otherwise the

working loads must be reduced to those indicated for regular eyebolts. A washer or spacer may be
required to put the plane of the eye in the direction of the load when the shoulder is seated.

D. No load greater than the safe working load listed in the data table should be used.

E. To obtain the greatest strength from the eyebolt, it must fit reasonably tight in its mounting hole to prevent

accidental unscrewing due to twist of cable.

F. Eyebolts should never be painted or otherwise coated when used for lifting. Such coatings may cover

potential flaws in the eyebolt.

G. To attain the safe working loads listed for regular eyebolts, 90% of the thread length must be engaged.

Copyright 1996-2001 ED-7244
Daktronics, Inc. Rev. 4 – 14 March 2001

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 display. Before
altering the display, 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. Tak e special care when disengag ing 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 display installation and maintenance.

1. Ribbon Cable Connectors:

Figure 10 on the right illustrates a typical ribbon

connector. To disconnect the ribbon cable, push the plastic
clips on the sides to unlock and remove the jack.

Before replacing a ribbon cable connector, spray it with
DeoxIT
may cause signal problems. In addition, apply a generous
amount of CaiLub
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 11 on the right.

3. Phoenix™-Style Connectors:

Phoenix-style connectors, usually green, allow for signal
termination on circuit boards. Refer to Figure 12 on the
right. Strip one-quarter inch of insulation from the wire
prior to termination. To remove a wire, turn the above
screw counter-clockwise 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.

Electrical Installation

™

contact cleaner to remove any foreign matter that

™

protector paste to the plug before

Figure 11: Ribbon
Cable Connector

Figure 12: Termination
Block

Figure 13: Phoenix
Connector

3-1

4. Mate-n-Lok

™

Connectors:

The white Mate-n-Lok connectors found in the signs
come in a variety of sizes. Figure 13 on the right
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 bo ard
and twist it counter-clockwise until you can pull
the plug from the jack. Figure 14 on the right
shows this connector.

6. Phone Jacks (RJ1 1 Co nnect ors) :

RJ connectors, as seen in Figure 15, 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
that may cause signal problems. In addition, apply a
generous amount of CaiLube
plug before inserting it into the jack. This paste will
protect both the plug and the jack from corrosion.

™

contact cleaner to remove any foreign matter

™

protector paste to the

Figure 14: Mate­n-Loc Connector

Figure 15: Fiber Optic Cable

Figure 16: 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 display structure.
This cable has a maximum length of 25 feet (8 meters).

RS422

This cable is a 4-conductor shielded cable used to transmit an RS422 signal
(Daktronics part number W-1234). 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

3-2

Electrical Installation

With interface signals (such as power conductors, intercom, etc.), typically a two­foot 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 line must be a dedicated line and not run through a switchboard
system.

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
either 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).

Radio

The Server radio connected to the computer requires one six-conductor 18 AWG
cable (W-1370) for the signal and the power. This cable needs to be in conduit when
exposed to outdoor conditions. The maximum distance from the J-box to the Server
radio is 1000 feet (304.6 meters).

The Client radio at the display comes with a quick connect cable that is rated for
outdoor use and does not need to be in conduit.

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 16 on the
right. This cable has one end that is
the mirror image of the other end
(i.e. the cable is flipped). Refer to Figure 17 below for a standard flipped cable.

Notice in Figure 18 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 display 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.

Electrical Installation

Figure 17: 6-Conductor RJ11 Connector and Cable

3-3

Figure 18: 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 19 on the right.

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.

3.4 Conduit

Reference Drawings:

Shop Drawings....................................................................... Appendix A

Daktronics does not include the conduit. Refer to the Shop Draw i ng for approximate
locations of power and signal conduit. You must use separate conduit to route:

• Power

• Signal IN wires

• Signal OUT wires (if anot her si gn requires signal)

Locate the conduit holes at the bottom right (rear view) of the back of the sign.
Refer to Shop Drawings for appropriate locations.

Punch or drill out the desired conduit openings. Be careful not to damage any
internal components. Attach the conduit, and then route the power and signal cables.

For displays with more than one face, a quick connect cable is provided to connect
the output on the first display to the input on the second.

If the displays are not back-to-back or are too far apart for the quick connect cable,
other cables for signal and the temperature sensor wiring can be used. In that case,
the same conduit can be used between displays to route the signal cables.

Figure 19: Wire with Outer
Jacket Stripped

3-4

Electrical Installation

3.5 Preparing for Power/Signal Connection

Reference Drawings:

Shop Drawings

........................................................................Appendix A

If the display needs openings for the power and sig nal, p unch out the knockouts in
the lower right corner from the rear. Refer to the Shop Drawings for appropriate
locations.

ith a #2 screwdriver, release the four screws that hold the module in

1. W

place. The module will pull forward and out from the display.

sconnect the power and signal cables from the back of the module.

2. Di

3. Ro

4. Po

5. Yo

ute 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.

wer conductors from the disconnect to the display must route through

conduit in agreement with local codes.

u may also route the signal cable from the control computer to the
display at this time. Run the power and signal cables in a separate
conduit.

3.6 Power

Reference Drawings:

Panel Board Layout, AF-3180- 64mm
Power Specs, AF-3180, Amber LE

Power Specs AF-3180, Red LEDs...............................Dra

.........................Drawing A-192369

Ds .........................Drawing A-192935

wing A-192937

Refer to Drawings A-192935 and A-192937 for voltage and current requirements for
your display size. The display will use either a 120/240VAC single-phase power or
120/208 three-phase power source.

t connect the displays to any voltage other than that listed on the Daktron ics

Do no
product label.

Proper power installation is imperative for proper display operation. The following

b-sections give details of display power installation. Electrical installations must

su
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
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 b
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.

®

. Daktronics requires a resistance to ground of 10 ohm s or

e connected to earth-ground. Proper grounding is

Electrical Installation

3-5

Figure 20: Display Grounding

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 requires 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 power term panel.

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 earth­ground electrode differs from region to region and because of 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 system and grounding
electrodes must be installed according to Article 250 of the National Electrical Code
and any applicable local codes.

Power Installation

There are two considerations for power installation: installation with ground and
neutral conductors provided and installation with only a neutral conductor provided.
These two power installations differ slightly, as described in the following
paragraphs:

3-6

Installation with Ground and Neutral Conductors Provided

For this type of installation, the power cable must contain an isolated earth-ground
conductor. Under this circumstance, do not connect neutral to ground at the
disconnect or at the display. This would violate electrical codes and void the
warranty. Use a disconnect so that all hot lines and neutral can be disconnected.
Refer to Figure 20 below for installation details. The National Electrical Code
requires the use of a lockable power disconnect within sight of or at the display.

Electrical Installation