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Figure 4:  Quick Connect Boards  

 

 

Figure 5:  Display Interconnect 

Primary – Primary (RS422) 

If your location requires two displays that cannot be mounted back-to-back, two 
primary displays will need to be installed.  Those displays can be connected using an 
RS422 signal cable or by fiber.  In the case of RS422, the following connections will 
need to be made:

 

 

1. 

Open the display, as explained in 

Section 4.4

 of your display manual, and 

locate the controller panel for these displays. 

2. 

Route the cable through conduit from the back of the first primary display 
to the back of the second primary display.  Use one of the knockouts for 
access, being careful not to damage any internal components 

3. 

Use either a 4-pair signal cable or two 4-condutor, shielded cables to 
connect both the signal and the temperature sensor information between 
displays. 

4. 

The signal cable will connect from TB3 out on the first primary display to 
either: 

• 

A surge board at TB1 in a second primary display 

• 

(or) To TB2 on the controller in the second primary display.   

• 

Note:  In either case the connections are flipped.  See the table and 

Drawing B-204771

 for connections on both displays. 

• 

Signal connections between two controllers are shown in

 

Figure 6

.

 

 

Figure 6:  Interconnection from Primary to Primary 

Fiber Optic Communication Manual 

 

4

Summary of Contents for ED-14743

Page 1: ...n Manual Installation Maintenance Troubleshooting ED 14743 Rev 1 11 October 2004 331 32nd Ave PO Box 5128 Brookings SD 57006 Tel 605 697 4034 or 877 605 1113 Fax 605 697 4444 www daktronics com e mail...

Page 2: ...bility 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 tap...

Page 3: ...Signal Termination Between Displays 3 Primary Mirror 3 Primary Primary RS422 4 Primary Primary Fiber 5 Replacement of the Fiber Optic Board 6 Alternate Location Installation 7 Troubleshooting 8 Signal...

Page 4: ......

Page 5: ...rs 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 it should not be subjected to mechanical flexing The maximu...

Page 6: ...transmit TX to receive RX and receive RX to transmit TX Refer to Figure 2 and Drawing A 211735 for the system layout 4 In the case of fiber only signal and display power can be run through the same co...

Page 7: ...ansmit TX1 Color varies J5 Receive RX2 J3 Receive RX1 Color varies J4 Transmit TX2 Signal Termination Between Displays Reference Drawings Controller II Galaxy 8 conn J1087 Drawing B 204771 Primary Mir...

Page 8: ...y to the back of the second primary display Use one of the knockouts for access being careful not to damage any internal components 3 Use either a 4 pair signal cable or two 4 condutor shielded cables...

Page 9: ...1 Locate the signal enclosures or open the display as explained in Section 4 4 of your display manual to locate the controller panel for these displays 2 Route the cable through conduit between the en...

Page 10: ...the new fiber optic board replace the nuts and reconnect power and signal cables The fiber optic board has three LEDs 1 The green power LED DS1 should remain lit while power is applied to the fiberbo...

Page 11: ...the knockouts for access being careful not to damage any internal components 2 Connect two fiber lines of the fiber cable Daktronics part number W 1376 from the signal converter to the fiber optic bo...

Page 12: ...e SC is not transmitting data TX Brief Flicker SC is transmitting data ON Steady 1 Field Cabling between SC and display is bad 2 Connected to display output jack or terminated incorrectly 3 Bad COM po...

Page 13: ...lice Daktronics part P 1197 as shown in Figure 12 4 When the fibers are connected perform the loop back test using the Venus 1500 software as described in Conducting the Venus 1500 Software Test Figur...

Page 14: ...rt is being used however if it does not flicker there is either a software or hardware problem with the computer 6 If you get the same message in the Received box as in the Sent box the loop back test...

Page 15: ...ay Manager to get status to ensure communication now works correctly Replacement Parts List The following table contains some of the items that may need to be replaced over a period of time Many of th...

Page 16: ......

Page 17: ...ollowing drawings are listed in numerical order by size A B etc Those drawings are listed according to size System Riser Diagram Comm Box Fiber QC Drawing A 211735 Controller II Galaxy 8 conn J1087 Dr...

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