Daktronics DF-12xx User Manual

DataMaster™ Outdoor LED

Gasoline Price Displays
DF-1024/DF-1026 Series

DF-1200 Series

Installation and Operation Manual

ED-15177 Rev 2 – 27 April 2005

332 32nd Ave PO Box 5128 Brookings SD 57006
Tel [phone] or 877-605-1113 Fax [phone]
www.daktronics.com e-mail: [e-mail]

ED-15177

Product 1319

Rev 2 – 27 April 2005

DAKTRONICS, INC.

Copyright © 2004-2005

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.

DataMaster™ and DataTime® are trademarks of Daktronics, Inc. Other trademarks used in this manual are
the property of their respective owners.

Reproduction Reference

ED-15177 – P1319

DataMaster Gasoline Price Displays

1. This page is for reproduction reference only and will not be included in the manual.

2. This manual is to be copied on FRONT AND BACK PAGES –8 ½ x 11 paper.

3. Note: The first and second page, cover page and copyright page, use the front of the page (blank

on back). Section heading pages always start on a new page; they never start on the back of
another page.

4. Insert the drawings into Appendix A. Use the drawing list in Appendix A to print and arrange the
drawings. Print C-size as B-size.

5. Insert ED-13481 within Appendix B.

6. Insert ED-13965 within Appendix C.

7. Insert ED-13960 within Appendix D.

8. Use a blue window cover and a blue back.

9. Punch all pages, window cover and back cover along the left edge and bind with a binder.

10. Please direct questions and suggestions to Engineering Support.

Table of Contents

Section 1: Introduction..................................................................................... 1-1

1.1 Safety Precautions.......................................................................................1-3

1.2 Network Concepts.......................................................................................1-3

Current Loop........................................................................................1-3

Radio ....................................................................................................1-3

Modem .................................................................................................1-4

1.3 Product Overview........................................................................................1-4

1.4 Component Identification............................................................................1-5

1.5 Daktronics Nomenclature............................................................................1-6

Section 2: Mechanical Installation.................................................................. 2-1

2.1 Mechanical Installation Overview...............................................................2-1

2.2 Lifting the Display.......................................................................................2-3

Section 3: Electrical Installation ..................................................................... 3-1

3.1 Preparing for Power/Signal Connection......................................................3-1

3.2 Power and Grounding Connections.............................................................3-1

Power....................................................................................................3-1

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

3.3 Lightning Protection....................................................................................3-4

3.4 Signal Connection .......................................................................................3-4

Current Loop (Direct)...........................................................................3-5

Radio (Direct).......................................................................................3-7

Modem (Indirect) .................................................................................3-9

Host/Client Definitions and Address Settings....................................3-10

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

4.1 Cabinet Specifications.................................................................................4-1

4.2 Component Location and Access................................................................4-1

4.3 Service and Diagnostics ..............................................................................4-2

Replacing a Digit..................................................................................4-2

Replacing a Digit Segment...................................................................4-3

Segmentation and Digit Designation....................................................4-4

Replacing an LED Driver .....................................................................4-4

Replacing a Signal Surge Board...........................................................4-6

Replacing a Modem..............................................................................4-7

4.4 Light Sensor Location .................................................................................4-8

4.5 Troubleshooting...........................................................................................4-9

Power On Self-Test:...........................................................................4-11

4.6 Replacement Parts .....................................................................................4-11

4.7 Daktronics Exchange and Repair and Return Programs............................4-14

Table of Contents i

Section 5:

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

Gas Price Display Operation..........................................................5-1

5.1 DataMaster 100 Overview...........................................................................5-1

5.2 DataMaster™ Insert and Code......................................................................5-1

5.3 Gas Price Display Operation .......................................................................5-2

Gas Price Display Startup.....................................................................5-2

Menu Items...........................................................................................5-4

Gas Price Controller Operation ............................................................5-4

Modifying Price Line Settings..............................................................5-5

Edit Price Line 1-5................................................................................5-5

LED Test ..............................................................................................5-6

Modem Settings....................................................................................5-6

Display Sequence .................................................................................5-7

Set Time................................................................................................5-7

Dimming...............................................................................................5-8

Radio Settings.......................................................................................5-9

5.4 POS Installation and Interface...................................................................5-10

Hardware Installation:........................................................................5-10

Configuring the DM100 for Gilbarco G-Site Interface......................5-11

Changing Prices:.................................................................................5-12

Appendix B: DataMaster Frequently Asked Questions (FAQ) ........................B-1

Appendix C: DataMaster Gasoline Price Quick Installation Reference.......... C-1

Appendix D: DataMaster Gasoline Price Quick Start Reference..................... D-1

ii Table of Contents

List of Figures

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

Figure 2: Display Identification Label................................................................................1-2

Figure 3: Typical Label.......................................................................................................1-6

Figure 4: Lifting the Display...............................................................................................2-3

Figure 5: DataMaster Driver Enclosure with 4-Column Driver ......................................... 3-4

Figure 6: Direct, Current Loop Layout...............................................................................3-5

Figure 7: Direct Current Loop Connection.........................................................................3-6

Figure 8: Direct Connection from Indoor Location............................................................3-7

Figure 9: Radio Controlled Display Layout........................................................................3-8

Figure 10: Direct Current Loop Connection.......................................................................3-8

Figure 11: Modem Controlled Display Layout...................................................................3-9

Figure 12: Phone line Connection to Display Modem...................................................... 3-10

Figure 13: Host, Signal Out to Client, Signal In...............................................................3-11

Figure 14: Common Address Settings..............................................................................3-12

Figure 15: DataMaster Gas Price Display with Door Panels Open ....................................4-2

Figure 16: Digit Assembly..................................................................................................4-3

Figure 17: Segmented Digit Panel......................................................................................4-3

Figure 18: Digit Designation...............................................................................................4-4

Figure 19: 4-column Digit Driver.......................................................................................4-5

Figure 20: Signal Surge Suppression Board.......................................................................4-7

Figure 21: Modem Board....................................................................................................4-7

Figure 22: Internal Light Sensor.........................................................................................4-8

Figure 23: DataMaster 100 .................................................................................................5-1

Figure 24: DataMaster 100 Insert LL-2551........................................................................5-2

List of Figures i

Section 1: Introduction

This manual explains the installation, maintenance and troubleshooting of the Daktronics
DataMaster™ DF-1024/DF-1026 and DF-1200 LED Gasoline Price 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.

This manual is divided into 9 sections: Introduction, Mechanical Installation, Electrical
Installation, Maintenance and Troubleshooting, Gas Price Display Operation, Appendix A,
Appendix B, Appendix C and Appendix D.

• 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 guidance on display mounting.

• Electrical Installation gives general guidance on terminating power and signal

cables at the display.

• Maintenance and Troubleshooting addresses such things as removing basic

display components, troubleshooting the display, performing general maintenance
and exchanging display components.

• Gas Price Display Operation section gives a product overview of the DataMaster

controller used to program the Gas Price display.

• Appendix A lists the drawings referenced within this manual.

• Appendix B lists the Frequently Asked Questions when operating this display.

• Appendix C provides information and drawings as a quick reference for installing

the display.

• Appendix D contains a quick reference to the DataMaster when operating the Gas

Price displays.

Daktronics identifies manuals by an ED number located on the cover page of the manual. For
example, this manual would be referred to as ED-15177.

Listed below are a number of drawing types commonly used by Daktronics, along with the
information each is likely to provide.

• System Riser Diagrams: overall system layout from DataMaster control location to

display.

• Electrical and Mechanical Speciation Drawings: driver enclosure locations,

mounting information, display dimensions; power and signal entrance points, and
access method (front or rear).

• Schematics: power wiring, signal wiring, panel board or power termination panel

assignments, signal termination panel assignments, and transformer assignments.

Introduction 1-1

Figure 1, below, illustrates the Daktronics drawing label. The drawing number is

located in the lower-right corner of each drawing. Listing the last set of digits and
the letter preceding them identifies drawings in the manual. In the example below,
the drawing would be referred to as Drawing A-181218. Reference drawings are
inserted in alphanumeric order in Appendix A.

Figure 1: Daktronics Drawing Label

All references to drawing numbers, appendices, figures, or other manuals are
presented in bold typeface, as shown below.

“Refer to Drawing A-181218 for the display dimensions.”

Additionally, drawings referenced within a particular section are listed at the
beginning of that section as shown in the following example:

Reference Drawing:

Mechanical Specs, DF-1010-24, G3.....................Drawing A-181218

The model numbers of a Daktronics display can be found on the ID label on the
display. The label will be similar to the one shown in

Figure 2. When calling

Daktronics Customer Service, please have this information available to ensure that
your request is serviced as quickly as possible.

Figure 2: Display Identification Label

Daktronics displays are built for long life and require little maintenance. However,
from time to time, certain display components may need replacing. The
Replacement Parts List in Section 4-11 provides the names and part numbers of
components that may require replacement during the life of the display. Most display
components have a white label that lists the part number. The component part
number is in the following format: 0P-____-____ (component) or 0A-____-____
(multi-component assembly).

Following the Replacement Parts List is an explanation of Daktronics Exchange
and Repair and Return Programs. Refer to these instructions if any display
component needs replacement or repair.

1-2 Introduction

1.1 Safety Precautions

Important Safeguards:

1. Read and understand these instructions before installing your
display.

2. Do not drop the controller or allow it to get wet.

3. Properly ground the display with a ground rod at the sign
location.

4. Disconnect power when the display is not in use.

5. Disconnect power when servicing the display.

6. Do not modify the display structure or attach any panels or

coverings without the express written consent of Daktronics,
Inc.

1.2 Network Concepts

The concept of using LED displays as a cost effective, high impact method of
communication is rapidly growing throughout many industries and businesses. The
common thread of most requests is a means of programming and controlling the
displays in a variety of ways.

There are three communication methods available: Current Loop, Radio, and
Modem.

Current Loop

The DataMaster controller connects to the Gas Price Display either from a j-box
located outside near the display or from an indoor location. The communication
method is current-loop to the host display, and from the host to the client. Current­loop is a standard communication method that uses a maximum cable length of 600
meters (approximately 2000 feet). Refer to Section 3 for additional information and
connections.

Radio

The radio network is a standard communication method that uses radio waves at
high frequencies to transmit signal. The radio network has a maximum distance of
450 meters (approximately 1,500 feet). A nearly straight line-of-sight path must be
maintained between the Server Radio connected to the DataMaster controller,
through a signal converter, and the Client Radio connected to the display. Refer to
Section 3 (Electrical Installation) and the Section 5 (Gas Price Display Operation)
for additional information.

Introduction 1-3

Modem

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 the DataMaster and display. Each modem
network needs to have a dedicated phone line assigned to it. Refer to Section 3
(Electrical Installation) and the Section 5 (Gas Price Display Operation) for
additional information.

1.3 Product Overview

DataTime and DataMaster displays are part of a family of Daktronics digit products
designed for easy installation, readability and reliability.

The DataTime/DataMaster Series includes:

• Gasoline Price Displays: gas price signs with three standard digits,

decimal, and

• Rate Displays: two- or four-digit signs, typically used to display

hotel/motel room rates or commodity prices.

• Lottery Displays: three-digit signs typically used to display lottery

jackpots.

• Parking Garage Displays: four-digit display used for parking locations

requiring a DataMaster, switch inputs or third-party software.

• Event Counters: These displays are typically used to count to a designated

goal. They will count either up or down, and can be up to nine digits long.

• Time & Temperature Displays: Automatic Time & Temp signs capable of

displaying temperatures in Fahrenheit or Celsius (three digits, degree
symbol, and F and C character) and 12- or 24-hour time.

The DataMaster series includes gasoline, rate and parking displays, along with
lottery and event counters. The DataTime series name is used for time and
temperature displays only.

These displays have the following features:

• These displays use LEDs to illuminate their numeric digits.

• Power usage for individual displays in this series is a maximum 300 W. All

models have a 120 V power requirement.

• All DataMaster displays are configured with red, amber or green LEDs.

• DataMaster cabinets are constructed of heavy-gauge aluminum.

• Digit faceplates are black, and they are set directly into the surface of the

display.

• Mounting weights and dimensions for each model are listed in Section 2 of

this manual.

• The DataMaster outdoor LED displays have been designed for use with a
DataMaster
for display control. Section 5 of this manual provides operating
instructions.

9

/

fraction.

10

™

100 hand-held controller. The device uses a keyboard insert

1-4 Introduction

The DataMaster model numbers are described as follows: DF-102X-HH-C

DF-102X =

HH

C

Outdoor Digit Display (1024 full cabinet with top backlit ID panel

or 1026 full cabinet with left side backlit product ID panel)

=

Digit height in inches (10, 13, 18, 24, 36, 48 and 60)

=

LED Color- R (Red), A (Amber), G (Green - 13”, 18”, and 24”)

1.4 Component Identification

The following list includes some of the more commonly used terms when
referring to these displays. 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 additional information on
maintaining the various display components.

Client: The client display contains a client driver that receives signal from the
“host” driver on the Signal IN terminals. These drivers can re-drive signal to other
client drivers.

DataMaster Controller (DM100): The handheld keyboard-like device used to set
the time, date, hold times, dimming etc. on the Gas Price display. See Section 5 for
more information on the DataMaster controller.

Display Address: The display address is an identification number assigned to each
driver in a network. The address is set using an 8-position binary switch on the
driver board. For single-line signs such as a Time & Temp display, the address will
typically be “1”. For Gas Price displays, the top display is often set to address “1 ”
and the others are set to “2”, “3” etc. The address will be displayed each time the
display powers up.

Digit Circuit Board: The LEDs are mounted to a circuit board, which mounts to the
back of a digit panel. Problems with individual digits, segments or LEDs may
require accessing or replacing this board.

Host/Primary: The host display contains the host driver which relays signal directly
from the DataMaster controller on its Signal IN terminals. It is the only driver
connected to the temperature/light sensor. The Signal OUT terminals are used to
connect to the client driver. The host driver is selected by inserting the protocol 4­plug into the protocol jack.

LED (light emitting diode): LEDs are high-intensity, low-energy lighting units.

Introduction 1-5

Mirror/slave: receives power and a digit harness from the master but does not have
a driver.

Power Supply: Converts AC line voltage from the load center to low DC voltage
for one or more digit circuit boards.

Protocol plug: The protocol 4-plug is inserted in the 5-pin protocol jack to select the
host driver for a set of host-client displays.

1.5 Daktronics Nomenclature

To fully understand some Daktronics drawings, such as schematics, it is necessary to
know how various components are labeled in those drawings. You will find this
information useful when trying to communicate maintenance or troubleshooting
efforts.

The following labeling formats might be found on various Daktronics drawings:

• “TB _ _” denotes a termination block for power or signal cable.

• “E _ _” denotes a grounding point.

• “J _ _” denotes a power or signal jack.

• “P _ _” denotes a power or signal plug for the opposite jack.

Finally, Daktronics part numbers are commonly found on drawings. Those part
numbers can be used when requesting replacement parts from Daktronics Customer
Service. Take note of the following part number formats. (Not all possible formats
are listed here.)

• “0P- _ _ _ _- _ _ _ _” denotes an individual circuit board, such as a driver
board.

• “0A-_ _ _ _ - _ _ _ _” denotes an assembly, such as a circuit board and the
plate or bracket to which it is mounted. A collection of circuit boards
working as a single unit may also carry an assembly label.

• “W- _ _ _ _ ” denotes a wire or cable. Cables may also carry the assembly
numbering format in certain circumstances. This is especially true for
ribbon cables.

Most circuit boards and components within this display carry a label that lists the
part number of the unit. If a circuit board or assembly is not listed in the
Replacement Parts List in Section 4.6, use the label to order a replacement. A
typical label is shown in

Figure 3. The part number is in bold.

1-6 Introduction

Figure 3: Typical Label

g

(

Section 2: Mechanical Installation

Note: Daktronics does not guarantee the warranty in situations where the display is
not in a constant environment.

Daktronics engineering staff must approve any changes that may affect the weather­tightness of the display. If any modifications are made, detailed drawings of the
changes must be submitted to Daktronics for evaluation and approval, or the
warranty may be void.

Daktronics is not responsible for installations of structural integrity of support
structures done by others. It is the customer’s responsibility to ensure that a

qualified structural engineer approves the structure and any additional hardware.

2.1 Mechanical Installation Overview

Mechanical installation typically consists of mounting the display and any
accompanying panels to the support structure.

The table below shows all of the weights and dimensions for each model in this
series. Models are listed in order by digit size

Full Cabinet Models with backlit product ID panel above digits
Dimensions and Weight

Model

DF-1024-10

DF-1024-13

DF-1024-18 H3’-0", W5’-0", D6"

(914 mm, 1524 mm, 152 mm)

DF-1024-24

DF-1024-36

(1219 mm, 1829 mm, 152 mm)

(1676 mm, 2438 mm, 203 mm)

Dimensions

Height, Width, Depth

H1’-9", W3’-0", D6"

(533 mm, 914 mm, 152 mm)

H2’-2", W3’-6", D6"

(660mm, 1067 mm, 152 mm)

H4’-0", W6’-0", D6"

H5’-6", W8’-0", D8"

Weight Digit Size

35 lb

16 kg

45 lb

20 kg

80 lb

36 k

120 lb

54 kg

190 lb

73 kg

10"

(254 mm)

13"

(330 mm)

18"

457 mm)

24"

(610 mm)

36"

(914 mm)

DF-1024-48

DF-1024-60 H9’-0", W14’-0", D8"

H7’-0", W11’-0", D8"

(2134 mm, 3353 mm, 203 mm)

(2743 mm, 4267 mm, 203 mm)

320 lb

145 kg

590 lb

268 kg

48"

(1219 mm)

60"

(1524 mm)

Electrical Installation 2-1

Full Cabinet Models with backlit product ID panels left of digits
Dimensions and Weight

Model

DF-1026-10

DF-1026-13

Dimensions

H1’-3", W5’-0", D6"

(381 mm, 1524 mm, 152 mm)

H1’-6", W6’-0", D6"

(457 mm, 1829 mm, 152 mm)

Weight Digit Size

40 lb

18 kg

50 lb

23 kg

10"

(254 mm)

13"

(330 mm)

DF-1026-18 H2’-0", W8’-0", D6"

(610 mm, 2438 mm, 152 mm)

80 lb

36 kg

18"

(457 mm)

DF-1026-24

DF-1026-36

DF-1026-48 H4’-6", W16’-6", D8"

H2’-6", W10’-0", D6"

(762 mm, 3048 mm, 152 mm)

H3’-6", W13’-0", D8"

(1067 mm, 3962 mm, 203 mm)

(1372 mm, 5029 mm, 203 mm)

120 lb

54 kg

190 lb

73 kg

320 lb

145 kg

24"

(610 mm)

36"

(914 mm)

48"

(1219 mm)

DF-1026-60

H6’-0", W20’-0", D8"

(1829 mm, 6096 mm, 203 mm)

590 lb

268 kg

60"

(1524 mm)

Full Cabinet Models with backlit product ID panels below digits, or on the
left- Dimensions and Weight

# of

Model

products

displayed

Dimensions

Weight

DF-1202

DF-1203

DF-1204

DF-1205

DF-1206

DF-1207

2

4

2

3

3

2

H3’-3", W9’-4. 50", D6"

(991 mm, 2858 mm, 152 mm)

H6’-0", W7’-7 .20", D6"

(1829 mm, 2316 mm, 152 mm)

H2’-3", W7’-7. 20", D6"

(686 mm, 2316 mm, 152 mm)

H2’-3", W9’-4. 50", D6"

(686 mm, 2858 mm, 152 mm)

H6’-0", W9’-4. 50", D8"

(1829 mm, 2858 mm, 203 mm)

H5’-0", W9’-4. 50", D8"

(1524 mm, 2858 mm, 203 mm)

160 lb

73 kg

240 lb

109 kg

100 lb

45 kg

110 lb

50 kg

300 lb

136 kg

250 lb

113 kg

(457 mm)

(330 mm)

(254 mm)

(254 mm)

(457 mm)

(610 mm)

Digit

Size

18”

13”

10”

10”

18”

24”

2-2 Electrical Installation

2.2 Lifting the Display

Model DF- displays are shipped equipped with 3/8" eyebolts that are used for
lifting and positioning the modules. Eyebolts are located along the top outer
edges of the cabinet.

Daktronics strongly recommends using a spreader bar, or lifting bar, to lift the
display. Using a spreader bar ensures that the force on the eyebolts is straight up,
minimizing lifting stress.
incorrect (right example) method for lifting a display. Lift the display as shown on
the left, with a lifting bar. Be sure to use every lifting point provided.

Figure 4 illustrates both the correct (left example) and the

Figure 4: Lifting the Display

Note: Daktronics assumes no liability for display damage or injury resulting
from incorrect setup or incorrect lifting methods.

Eyebolts are intended for lifting during installation only. Do not attempt to
permanently support the display by the eyebolts.

In installations where an ad panels or some other display section may be added to the
base display, the lower section is installed first and secured to the support beams,
and then the upper section is placed atop or above the lower sign section and
attached to the beams. There may be cables extending from the top of the lower
section. Guide these cables into the hole in the bottom of the upper section for later
connection.

Installers may remove the lift eyebolts once the display is in place. When removing
the eyebolts, adequately seal the holes using bolts and sealing washers. Smaller
displays use

3

/8"-16 bolts, larger displays use 1/2"-13 bolts into the holes. In addition,
inspect the top and sides of the display for any holes or openings that may allow
moisture to enter the display, and plug and seal those opening s with silicone.

Electrical Installation 2-3

Section 3: Electrical Installation

Daktronics outdoor displays are UL listed and tested to CSA standards for outdoor use.
Contact Daktronics with any questions regarding the testing procedures.

Only qualified individuals should perform power routing and termination to the
display. It is the responsibility of the electrical contractor to ensure that all
electrical work meets or exceeds local and national codes.

3.1 Preparing for Power/Signal Connection

Reference Drawing:

Quick Install, DF-1020 Gas Price Displays..................Drawing A-189768

Electrical installation consists of the following processes:

• Providing power and ground to a disconnect near the display.

• Routing power and ground from the main disconnect to the display

driver/power enclosure.

• Connecting the display ground to a grounding electrode at the sign location.

• Routing the control signal cable from the control location to the sign

location.

Drawing A-189768 provides detailed instructions for power and signal connections

for the DataMaster Gas Price displays, including hook-up of the connections
between host and client displays. Refer to this drawing before undertaking any part
of the electrical installation.

3.2 Power and Grounding Connections

Correct power and grounding installation is imperative for proper display operation.
The subsections that follow give details of display power installation. Only qualified
individuals should attempt to complete the electrical installation. Improper
installation could result in serious damage to the equipment and could be
hazardous to personnel.

Power

Daktronics DataMaster displays have been designed for easy access to components,
and the power and control signal hookup. Front panels are removable or hinged to
allow access to the digits, cabling, and other electronic components.

The DataMaster, Gas Price displays require a dedicated, 120 V circuit for incoming
power. The display itself has no breakers or fuses.

Electrical Installation 3-1

WARNING: It is critical that the display circuit be fused at 15 A, and that all
conductors used must be designed to pass a 15 A current in normal operation.
Failure to meet wiring and over current protection device requirements is a
violation of the National Electrical Code

®

and will void the display warranty.

The tables below show the circuit specifications and maximum power requirements
for each model. Models are listed in order by digit size.

Full Cabinet Model - Gas Price Displays – Power Requirements

Model

DF-1024-10/

DF-1026-10

Digit Size Maximum

Wattage

10"

(254 mm)

350 W

Circuit

120 V AC

3 A

DF-1024-13/

DF-1026-13

DF-1024-18/

DF-1026-18

DF-1024-24/

DF-1026-24

DF-1024-36/

DF-1026-36

13"

(330 mm)

18"

(457 mm)

24"

(610 mm)

36"

(914 mm)

350 W

350 W

350 W

600 W

120 V AC

3 A

120 V AC

3 A

120 V AC

3 A

120 V AC

5 A

DF-1024-48/

DF-1026-48

DF-1024-60/

DF-1026-60

48"

(1219 mm)

60”

(1524 mm)

600 W

600 W 120 V AC

120 V AC

5 A

5 A

3-2 Electrical Installation

Grounding

Reference Drawings:

Enclosed Driver, 4 Column Reference ........................Drawing A-184918

Displays MUST be grounded according to the provisions outlined in Article 250 of
the National Electrical Code and according to the specifications in this manual.
Daktronics requires a resistance-to-ground of 10 ohms or less.

The contractor performing the electrical installation can verify ground resistance.
Technicians from Daktronics Sales and Service offices can also provide this service.

The display system must be connected to an earth electrode installed at the display.
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. Refer to Drawing A-184918, for
information on where to connect the grounding wire. Connection at the driver
enclosure terminal block is illustrated at the bottom of the drawing.

The material for an earth-ground electrode differs from region to region and may
vary according to conditions present at the site. Consult the National Electrical Code
and any local electrical codes that may apply. The support structure of the display
cannot be used as an earth-ground electrode. The support is generally embedded in
concrete, and if it is in earth, the steel is usually primed or it corrodes, making it a
poor ground in either case.

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:

Installation with Ground and Neutral Conductors Provided
For this type of installation, the power circuit 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 lines can be disconnected.
The National Electrical Code requires the use of a lockable power disconnect within
sight of or at the display.

Installation with Only a Neutral Conductor Provided

Installations where no grounding conductor is provided must comply with Article
250-32 of the National Electrical Code. If the installation in question meets all of the
requirements of Article 250-32, the following guidelines must be observed:

• Connect the grounding electrode cable at the local disconnect, never at the
display driver/power enclosure.

• Use a disconnect that opens all of the ungrounded phase conductors.

Electrical Installation 3-3

3.3 Lightning Protection

The use of a disconnect near the display to completely cut all current-carrying lines
significantly protects the circuits against lightning damage. The National Electrical
Code also requires it. In order for this device to provide protection, the power must
be disconnected when the display is not in use. The control console should also be
disconnected from power and from the signal j-box when the system is not being
used. The same surges that may damage the display's driver can also damage the
driver console's circuit.

3.4 Signal Connection

Reference Drawings

4 Column MASC LED Driver Specifications................ Drawing A-166216

8 Column MASC LED Driver Specifications................ Drawing A-167237

16 Col. MASC Driver Specification..............................Drawing A-184475

Enclosed Driver, 4 Column Reference........................Drawing A-184918

Quick Install, DF-1020 Gas Price Displays.................Drawing A-189768

Route power and signal cables into the display from the side or rear. There are
knockouts for
and on the back panels. All power and signal wiring terminates at the driver
enclosure.

1

/2" and 3/4" conduit fittings on the sides of all DataMaster cabinets

Figure 5: DataMaster Driver Enclosure with 4-Column Driver

3-4 Electrical Installation

To gain access to the driver enclosure, open the access door and remove the cover
from the enclosure. Refer to the Electrical Specifications Drawings for the access
location for your sign. For smaller digit displays, access to the interior components is
gained by removing the screws from the hinged door. In the larger digit displays,
there are door latches that allow access to the interior components by removing the
digits.

Refer to Drawing A-189768 for a complete review of power and signal connections
for Gasoline Price displays. Drawings A-184918, A-167237 and A-184475 illustrate
and provide connection specifications for the different drivers used in DataMaster
Gas Price displays. The power and signal connections, illustrated in
similar for all three drivers.

Current Loop (Direct)

Reference Drawings:

Riser Diagram, Outdoor Wire Control..........................Drawing A-164988

Riser Diagram, Indoor Wire Control.............................Drawing A-175342

Enclosed Driver, 4 Column..........................................Drawing A-184918

Quick Install, DF-1020 Gas Price Displays..................Drawing A-189768

A direct controlled display uses a current loop connection from the j-box at the base
of the display to the driver enclosure in the sign. All the power and signal wiring
terminate at the driver enclosure. The DataMaster hand-held controller receives its
power from the display. The display layout is shown in

164988.

Figure 6: Direct, Current Loop Layout

Figure 5, are

Figure 6 and Drawing A-

Electrical Installation 3-5

Note: The cable from the j-box to the display needs to be routed through conduit or

the display pole to protect it from weather and vandalism.

1. Mount the j-box near the display.

2. Route a 4-conductor, 22 AWG, shielded cable through conduit from the j-box

to the driver enclosure in the host display. (Distance limit from the j-box to
the display is 50 ft.)

3. Connect the signal/power cable from the j-box to the driver enclosure as

shown in

Figure 7 and listed in the table. Refer to Drawings A-175342 and

A-184918 for additional information.

4. Using a DB9M to DB9F serial cable, plug the DataMaster controller into the
J-box, connected to the Host Display Driver Enclosure

Figure 7: Direct Current Loop Connection

J-Box to Driver Enclosure Input Jack

J-Box

Pin#

Pin 1 Red 12V DC Out (+) pin 7
Pin 5 Black 12 V DC Out (-) Pin 8
Pin 5 White Signal IN (-) Pin 2
Pin 6 Green Signal IN (+) Pin 1

Cable
Color

Enclosure Terminal

Block

3-6 Electrical Installation

If using the DataMaster handheld controller at an indoor location, only the two, 22
AWG, signal wires (white and green) will need to be connected to the j-box. A wall
pack transformer, plugs into the indoor j-box, and provides power to the DataMaster
controller. The distance from the indoor j-box to the host driver can be up to 2000 ft.
Refer to

Figure 8 and Drawing A-175342 for system layout and signal connections.

Figure 8: Direct Connection from Indoor Location

Radio (Direct)

Reference Drawings:

Quick Install, DF-1020 Gas Price Displays..................Drawing A-189768

System Riser Diagram, Server/Client Setup................Drawing A-199834

A radio controlled display uses the DataMaster controller inside connected to a j­box. The j-box is then wired to a server radio attached to the building. A second
radio, called the client is connected to the Gas Price display. The DataMaster hand­held controller and server radio receive their power from the j-box. A wall pack
transformer powers the j-box. The client radio receives its power from the display.
The display layout is shown in Figure 9

1. Using the DB9M to DB9F serial cable, connect from the DataMaster
controller to the J-box, at the “DB9 Male, DataMaster 100 connect” jack.

2. Using an 18-AWG, 6-conductor, shielded cable, (W-1370) connect from
the j-box jack labeled “RS422 to Radio or 422 Device” to the TB1 jack
on the Server radio, mounted to the building. See
below for cable connections from the j-box to the radio.

3. Plug the wall pack transformer into the j-box and then into a 120V
grounded outlet.

4. Mount the Client radio on the display or display pole, and within 25 feet
of the display.

5. Plug the quick connect cable from the client radio into the 6-pin quick
connect jack on the side of the Gas price display.

and Drawing A-199834.

Figure 10 and the table

Electrical Installation 3-7

Figure 9: Radio Controlled Display Layout

Figure 10: Direct Current Loop Connection

Connection from J-box to Server Radio Enclosure

J-Box TB2 on Server

Pin# Function

Pin 1 Power Red Pin 1 Power
Pin 2 422 RX-P White Pin 2 422 TX-P
Pin 3 422 RX-N Green Pin 3 422 TX-N
Pin 4 422 TX-P Brown Pin 4 422 RX-P
Pin 5 422 TX-N Blue Pin 5 422 RX-N
Pin 6 GND Black Pin 6 GND

Cable
Color

Pin# Function

3-8 Electrical Installation

Notes:

1. The cable from the client radio to the display can to be routed through

conduit or the display pole to protect it from weather and vandalism. The
cable is weather and sunlight resistant.

2. The Server and Client radios must have a clear line-of-sight path and not
be more than 1500 feet apart.

3. A current-loop j-box is often mounted at the base of the display pole in
case of problems with communication though the radio network.

4. For additional connection and operation information see ED13894:
DataMaster Radio Installation Manual

Modem (Indirect)

Reference Drawings:

Modem Installation; 4 col MASC Drvr. Enc..................Drawing A-177039

Quick Install, DF-1020 Gas Price Displays..................Drawing A-189768

System Riser Diagram, Modem Setup ........................Drawing A-200552

A modem controlled display uses a DataMaster controller connected to a
modem/j-box, to call a second modem in the Gas Price display. The DataMaster
hand-held controller will receive its power from the j-box. A wall pack transformer
powers the j-box. The display layout is shown in

Figure 11 and Drawing A-200552.

Figure 11: Modem Controlled Display Layout

Electrical Installation 3-9

1. Using the DB9M to DB9F serial cable, connect from the DataMaster

controller to the modem/j-box, at the “DB9 Male, DataMaster 100
connect” jack.

2. Connect a phone line from a phone junction box to the modem/j-box jack
labeled “Phone Line Connection”.

3. Plug the wall pack transformer into the modem/j-box and then into a
120V grounded outlet.

4. At the display, the local phone company must provide a dedicated phone
line to the display and identity the color used for the “Tip ” wire and
which color is for the “Ring”.

5. The Tip and Ring phone wires will terminate to TB2 on the modem as
shown in Figure 12 and Drawing A-177039. If a phone cable is used, it
will plug into J5.

Figure 12: Phone line Connection to Display Modem

Notes:

1. A current-loop j-box is often mounted at the base of the display pole for

communication in the case of problems with the phone line.

2. The phone line and display power cannot be routed though the same
conduit.

3. For additional operation and connection information see ED13953:
DataMaster Modem Installation Manual

Host/Client Definitions and Address Settings

Reference Drawings:

Host/Client and Master/Slave Definitions .............Drawing A-168376

4 Column MASC LED Driver Specifications.........Drawing A-166216

8 Column MASC LED Driver Specifications.........Drawing A-167237

16 Col. MASC Driver Specifications..................... Drawing A-184475

Address settings, MASC drivers...........................Drawing A-227502

3-10 Electrical Installation