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3.6 Signal 

RS422 Cable Requirements 

This cable is a 6-conductor shielded cable used to transmit an RS/422 signal. 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 interference signals.  

 
With interference signals (such as power conductors, intercom, etc.) typically a two-foot 
separation is required. The maximum length of an RS/422 signal cable is 4,000 feet (1.22 
kilometers). 

Signal Connect on from Compu er to Sign 

i

t

One end of the signal cable should be terminated to the 6-position terminal block in the sign 
labeled “RS422 IN” (TB2). The opposite end is terminated at the signal converter (Daktronics part 
number 0A-1127-0237) in the control room. 
 

 

Signal Converter (J4/J5) 

 

Field Cabling 

Terminal Block TB2 

(RS422 In) 

Pin 1 (GND) 

Red 

Pin 1 (GND) 

Pin 2 (RX-P) 

Black 

Pin 2 (TX-P) 

Pin 3 (RX-N) 

Brown 

Pin 3 (TX-N) 

Pin 4 (TX-P) 

White 

Pin 4 (RX-P) 

Pin 5 (TX-N) 

Blue 

Pin 5 (RX-N) 

Pin 6 (GND) 

Green 

Pin 6 (GND) 

Signal Termination Between Two (o  More) Signs 

r

This is the most common method of terminating signal between two or more signs. A 6-conductor 
cable is used and one end terminates at the “RS422 OUT” 6-position terminal block (TB3) on the 
first sign. The other end terminates at the “RS422 IN” 6-position terminal block (TB2) in the 
second sign.

 

 

Sign A 

Data Out (TB3) 

 

Field Cabling 

Sign B 

Data In (TB2) 

Pin 1 (GND) 

Green 

Pin 6 (GND) 

Pin 2 (Data TX-N) 

Blue 

Pin 5 (Data RX-N) 

Pin 3 (Data TX-P) 

White 

Pin 4 (Data RX-P) 

Pin 4 (Data RX-N) 

Brown 

Pin 3 (Data TX-N) 

Pin 5 (Data RX-P) 

Black 

Pin 2 (Data TX-P) 

Pin 6 (GND) 

Red 

Pin 1 (GND) 

Pin 6(GND) 

Bare (Shield) 

N.C. 

 
Note: Refer to 

Section 4.2

 for the modem information. This is found on pages 

4-1 

and 

4-2

3.7  First Time Operation 

When first operated, the sign will run through an initialization in which it will display the following: 
 

1. Output 

Test 

(DDDs) 

2.  Product Name (Galaxy) 

3.  Sign Size (Row x Column) 
4.  Firmware Number (

ED10134

Electrical Installation 

3-5

 

 

Содержание Galaxy AF-3050 Series

Страница 1: ...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 m...

Страница 2: ......

Страница 3: ...ble 3 2 Shielded Cable 3 2 Direct Burial Cable 3 2 High Voltage Insulation Cable 3 2 3 3 Conduit 3 3 3 4 Preparing for Power Signal Connection 3 3 3 5 Power 3 4 Grounding 3 4 Power Installation 3 4 3...

Страница 4: ...ters 4 6 4 7 Galaxy Display Maintenance 4 7 4 8 Weather Stripping 4 7 4 9 Troubleshooting 4 8 4 10 Initial Operation Information 4 8 4 11 Replacement Parts List 4 9 4 12 Daktronics Exchange and Repair...

Страница 5: ...ample 24x80 Front 1 5 Figure 5 Module Numbering 1 5 Figure 6 Typical Label 1 5 Figure 7 Lifting the Display 2 2 Figure 8 Ribbon Cable Connector 3 1 Figure 9 Termination Block 3 1 Figure 10 Phoenix Con...

Страница 6: ......

Страница 7: ...ging sign components Appendix A Includes the drawings referenced in this manual Daktronics identifies manuals by an ED number located on the cover page of each manual For example this manual would be...

Страница 8: ...n Programs in Section 4 12 Refer to these instructions if any sign component needs replacement or repair 1 2 Safety Precautions Important Safeguards 1 Read and understand these instructions before ins...

Страница 9: ...ontrol computer translates it and activates the appropriate pixels on the sign accordingly Figure 2 Controller Galaxy Daktronics trademarked name for LED monochrome or tri colored matrix signs Network...

Страница 10: ...contrast on the sign face and direct LED light Module 20mm Galaxy modules are 16 pixels high by 16 pixels wide refer to Figure 3 above Each module is individually removable from the front of the sign...

Страница 11: ...ormats might be found on various Daktronics drawings TB_ _ indicates a termination block for power or signal cable F_ _ signifies a fuse E_ _ stands for a grounding point J_ _ represents a power or si...

Страница 12: ......

Страница 13: ...le of supporting the display and will not yield at any unsupported points after mounting Clearance 3 of unobstructed space is available below the display for proper ventilation of the sign Unobstructe...

Страница 14: ...by the eyebolts Figure 7 Lifting the Display If removing the eyebolts adequately seal the holes using 13 bolts and sealing washers inch in size Silicone along the threads This ensures that water does...

Страница 15: ...des to unlock and remove the jack Figure 9 Termination Block Before replacing a ribbon cable connector spray it with Deoxit contact cleaner to remove any foreign matter that may cause signal problems...

Страница 16: ...to mechanical flexing after installation This cable is not for direct burial and should have one of the following routings In dedicated metallic conduit In plastic conduit away from interference signa...

Страница 17: ...left two modules AX01 and AX02 to expose the power enclosure and signal panel To do this use a 1 8 inch Allen wrench to turn the latch access fasteners one quarter turn Turn the top latch clockwise an...

Страница 18: ...erally embedded in concrete and if in earth the steel is either primed or it corrodes making it a poor ground Power Installation There are two considerations for power installation installation with g...

Страница 19: ...ock TB2 RS422 In Pin 1 GND Red Pin 1 GND Pin 2 RX P Black Pin 2 TX P Pin 3 RX N Brown Pin 3 TX N Pin 4 TX P White Pin 4 RX P Pin 5 TX N Blue Pin 5 RX N Pin 6 GND Green Pin 6 GND Signal Termination Bet...

Страница 20: ...e a 3 conductor disconnect so that both hot lines and the neutral can all be disconnected The main disconnect should be mounted at or near the point of power supply connection to the sign A main disco...

Страница 21: ...tic LEDs Maintenance Records a number of steps to take to keep this Galaxy display in safe working order Troubleshooting Supplies some possible display malfunctions and provides a number of possible c...

Страница 22: ...wing sub sections address servicing of the following display components transformer RFI filter and fuse controller modules drivers and power supplies The sub sections also address any diagnostic LEDs...

Страница 23: ...y with fuses of the same type and rating Controller The controller sends data to the modules Refer to the signal summary in Section 4 2 for more information on the location of the controller board A t...

Страница 24: ...formation typically used in custom applications Complete the following steps to remove this circuit board from the display 1 Disconnect power from J2 2 Remove all power and signal connections from the...

Страница 25: ...he louver assembly from the face of the module 1 Remove the five twist on fasteners holding the louver assembly to the module located on the rear of the module 2 Lift the louver assembly straight away...

Страница 26: ...e 1 500 hours is equivalent to 62 days if the display is running non stop for 24 hours a day Attention Power to the display should be shut off when the display is not in use If the power is left on wh...

Страница 27: ...aced as required Excessive Dust Buildup Occasionally it may be necessary to vacuum the inside of the sign cabinet to remove dust dirt buildup that may interfere with airflow Water Intrusion Water Stai...

Страница 28: ...er supply assembly fail to work Replace the power supply assembly Entire sign fails to work Check for proper line voltage into the power termination panel Check replace the signal cable to the control...

Страница 29: ...onomical service for replacing key components in need of repair If a component fails Daktronics sends the customer a replacement and the customer in turn sends the failed component to Daktronics This...

Страница 30: ...e defective equipment within 30 days from the invoice date Daktronics also offers a Repair and Return Program for items not subject to exchange Return Materials Authorization To return parts for servi...

Страница 31: ...awing B 171256 Schematic AF 3050 32x64 6 R Drawing B 157299 Schematic AF 3050 32x80 20mm Drawing B 171415 Schematic AF 3050 32x96 A Monochrome Drawing B 166161 Schematic AF 3050 32x96 20mm Drawing B 1...

Страница 32: ...g AF 3050 1664 20 A Drawing B 179428 Shop Drawing AF 3050 1680 R Drawing B 173201 Shop Drawing AF 3050 1680 20 R Drawing B 179425 Shop Drawing AF 3050 1696 20 A Drawing B 176334 Shop Drawing AF 3050 1...

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