Part 2 Installing and Connecting the Display
1. Install the horizontal fastener
First of all, the client should make sure that the fastener itself is positioned horizontally. Then fix the installation plates to the fastener.
The installation starts with the 1st row of the cabinets from the bottom. It is important to confirm the horizontal level and the bottom position of the 1st row.
Users can get the bottom position according to the dimensions of the frame structure or through calculation of the size of the display. It is better that we fasten the steel bar with the installation plate at the bottom of the 1st row of cabinets. By doing so, we can be sure that the 1st row of the cabinets are horizontal.
① Fasten the bar steel with the installation plate on the bottom of the cabinets.
② Fix to the frame. Be sure the connecting bars are level.
③Connection of the bars.
Users should make sure that all fastener and the connectors are vertical and horizontal before they can go on with the next step.
The principle of installing the cabinets: from the bottom to the top. From left to right or from the right to the left if the cabinets are in the same row..
As the following drawing shows, when installing, first of all, put the Am-n cabinet on the left side of the frame. Make sure that it is horizontal and fix the two installation plates on the top.
Users should make sure that the cabinet is vertical and horizontal before they can go on with the next step.
3. Install the cabinets of the 1st row
Users should make sure that the cabinets are vertical and horizontal before they can go on with the next step.
Users can install the other cabinets in the same way as they install the 1st row.
5. Install the water-proof seal pipe among the cabinets
The drawing of the seal is shown below:
6.1 Signal wiring block diagram
6.2 Instructions and Installation for LDU3000 /LDU3000A
LDU3000 is not a water-proof product. It can only be used indoor.
LDU3000A is built as a water proof instrument and can be used in the outside environment. It is usually placed at the mid-right position if you look from back of the screen.)
LDU3000A is endowed with the structure of water-proof, and can be installed outside. It should be fixed at the central of the display’s right side. (viewed from the back) LDU3000A can be fixed to the frame directly. The fixing size is as follows:
6.3 Signal Wire Connection among Cabinets
Signal wires are transmitted in the direction of row. Viewed from the back of the display, the signal wire begins with the first cabinet in the right, and concatenated to the left.
To make the wire-connection easier, we can start with the first cabinet in the left. The signal wire is of 4P single head. Users are required to lead it from the control board QS5002 CON3, cross the water-proof cannula and then insert it onto the adjacent cabinet's control board CON2.
6.4 LDU3000/LDU3000A-Display Connection
As can be seen in the above figure:
1)When connecting the LDU3000 HUB to the display, the right cabinet in the first row on top of the display (viewed from the back) should be connected with LDU3000’s Interface 1. Similarly, we can conclude that the input of the cabinet’s control board in the second row should be connected with LDU3000’s interface 2.
2)When connecting the LDU3000A HUB to the display, the right cabinet in the first row on top of the display(viewed from the back) should be connected with the output interface P1 of QS5003,the interior control board of LDU3000A. Similarly, we can conclude that the input of the cabinet’s control board in the second row should be connected with QS5003A’s output interface P2...
Note: For the detailed instructions of QS5003, please consult the instructions in the appendix.
6.5 Connection between LUD3000/LDU3000A and Light Sensor
1) Light Sensor
2) LUD3000
Insert the provided light sensor directly to the Sensor socket behind LDU3000. As shown in the following figure.
3) LUD3000A
Insert the provided light sensor directly to the Sensor socket behind LDU3000A. As shown in the following figure.
6.6 The communication between LDU3000/A and the PC
LDU3000/A' mainboard-QS5003.
There are two separate COM ports in the mainobard.
COM1: RS232&RS485; If a user chooses SEL for communicating (SEL connects to GND), the user choose RS232 communiation; If SEL is not chosen, then the user use RS 485 for communication. Communication RS232/RS485 can't be used at the same time.
COM2: RS232
LDU3000/A's mainboard -QS5003
CON1: Ethernet
Please refer to more detailed information of QS5003 in the following charpters.
6.6.1 RS232 communication
1) Under the offline system, users should use RS232 to communicate with teh LDU3000/A to change the message and setting.
2)Under the VGA system, users should use RS232 to communicate the updated CPU version.
Note: Please pay attention to the RS232 wiring when you communicating or programming, no matter the sign is under offline system or VGA system. Due to the limit communicating distance of RS232, we suggest the users lead the RS232 wire from the button of the sign. In this case, users can easily connect the PC to the com port.
3) RS232 connection
This drawing shows the RS232 connection by using COM 1:
This drawing shows the RS232 connection by using COM 2:
6.6.2 RS485 Communication
6.6.3 Ethernet Communication
Under the off line system, users can connect the Ethernet wire to the CON1 in mainboard 5003 of LDU300/A. The Following Signal Connection is for VGA Synchronous System
6.7 Instructions and Connection for VPU3000
Illustration of the Back Connection for VPU3000
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1 |
Power supply input: AC110V/220V |
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2 |
Ventilation fan outlet |
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3 |
RS232 port to the PC |
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4 |
USB port to the PC |
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5 |
Data output |
"CHANNEL1": Optical fiber output port. It is connected to LDU3000 for data transmission. |
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6 |
"CHANNEL 2": Optical fiber output interface. It is connected to LDU3000 for data transmission. |
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7 |
"DVI",DVI output port. It can be connected to the LCD or any other display as the monitor in the control room. |
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8 |
Video data input |
Passage 1 |
"DVI": DVI video input |
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9 |
Passage 2 |
"VGA": VGA video input |
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10 |
"Y"/"CVBS4" video input |
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11 |
"Pr"/"CVBS3" video input |
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12 |
"Pb "/"CVBS2" video input |
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13 |
"CVBS1" video input |
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14 |
"S-Video" video input |
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Notes:
1)There are two video input channels in VPU 3000. Each channel accepts one video signal input. When different video signals are fed to the processor at the same time, the user can get the function of "Picture In Picture" VPU3000.
2)There are two optical fiber interfaces for the data output. One is for data transmission, while the other is for hot back-up.
3) Optical fiber access indicator: When the indicator is on, the access is under stable working status
4) DVI indicator: When the indicator is on, the DVI is under stable working status
6.7.1 Optic Fiber Connection between VPU3000 and LDU3000
For the data output, there are two optic fiber interfaces. One is for data sending, and the other is for hot backup.
6.7.2 Connection between VPU3000 and PC DVI
6.7.3 Connection between VPU3000 and PC COM
USB:
RS232:
6.7.4 Connection between VPU3000 and Video Sources
For VPU3000, there are two video input channels, each of which has one video signal input. When the two video signals are input at the same time, the function of picture in picture can be realized.
7.1 General Block Diagram of Power Cable Connections
The above graph is sighted from the back of the display.
Cables from AC input to the distribution box should be prepared by the customers, and the grounding should be guaranteed. The resistance should be less than 4Ω.
The diameter of the cables is determined by the distribution box’s power rating. It must meet the maximum power rating.
7.2 Installation and Principle of Distribution Box
Generally speaking, the distribution box is fixed at the central of the display’s right side (viewed from the back) so as to make the arrangement of wires and maintenance more convenient.
We can choose distribution boxes with different specifications according to the power rating of the display. Depending on the maximum output of it, the distribution box has two specifications: 25KW and 40KW. Usually, the input of the distribution box is three phase five lines.
Principle Chart of the 25KW Distribution Box:
Instructions:
POWER IN:power input, 25KW, 3 phases 5 lines
POWER OUTPUT: power output
PL: to provide power for LDU3000A；illumination；Maximum power output 1KW;
PF: to provide power for exhaust fan；Maximum power output 1KW;
1~9: to provide power for the modules of the cabinet；Maximum power for each output 2.5KW
Technical Parameters’ of the Distribution Box (25KW)
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Total input power |
25KW |
3 phases 5 lines |
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Maximum input current for each phase |
38A |
AC220V |
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76A |
AC110V |
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Maximum outputs of distribution box |
9 outputs |
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Maximum power for each output |
2.5KW |
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Maximum for each output |
12A |
AC220V |
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24A |
AC110V |
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Principle Chart of the 40KW Distribution Box:
Instructions:
POWER IN:power input, 40KW, 3 phases 5 lines
POWER OUTPUT: power output
PL: to provide power for LDU3000A；illumination；Maximum power output 1KW;
PF: to provide power for exhaust fan；Maximum power output 1KW;
1~9: to provide power for the modules of the cabinet；Maximum power for each output 2.5KW
Technical Parameter of the Distribution Box(40KW)
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Total input power |
40KW |
3 phases 5 lines |
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Maximum input current for each phase |
60A |
AC220V |
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120A |
AC110V |
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Maximum outputs of distribution box |
15 |
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Maximum power for each output |
2.5KW |
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Maximum current for each output |
12A |
AC220V |
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24A |
AC110V |
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Power rating for each output of the distribution box is 2.5KW.
"N" cabinets can be connected to the distribution box. As the following table shows: Table 2
| pitch
parameter |
10mm | 13.3mm | 16mm | 17.7mm | 20mm | 26.7mm | 32mm | 40mm |
| pixels on each standard cabinet | 48X64 | 36X48 | 30X40 | 27X36 | 24X32 | 18X24 | 15X20 | 12X16 |
| Maximum power per cabinet | 360W | 500W | 430W | 360W | 290W | 160W | 150W | 150W |
| Number of driven cabinets for each output | 5 | 4 | 5 | 5 | 8 | 12 | 12 | 12 |
| Number of driven cabinets of 25KW distribution box | 45 | 36 | 45 | 45 | 72 | 108 | 108 | 108 |
| Number .of driven cabinets of 40KW distribution box | 75 | 60 | 75 | 75 | 120 | 180 | 180 | 180 |
7.3 Connection of Cabinets
Connection of the power cables of the cabinet are transmitted in the direction of row.
Generally speaking, if viewed from the back of the display, the power cables begin with the last cabinet (in the left) in each line, and concatenated to the right. If the total power of each row’s cabinet is too large as to exceed the endurance of the power cable, the way of connecting from both sides of each row to the midst can be tried. When connecting, just put the power cable across the water-proof cannula and join the L N G separately. That is OK.
Due to the different pitches of each cabinet, the power consumption of each cabinet is different accordingly. For the number of allowed concatenated cabinet please consult the number of driven cabinets for each output of the distribution box.
If the number of cabinet in row is more than that of the above mentioned, then one should lead the wires from both sides of the cabinet and cascade them toward the midst.
If the power consumption of a full color display exceeds 40KW, we suggest the user connect the power distributors in series. That is, when a user turns on a full color display, the 1st distributor will be turned on first, then the 2nd one, the 3rd... The way of connection is explained below:
1) Lead a wire out from the C4 cable connector in Distributor 1;
2) Connect the wire to the C3 wire connector in Distributor 2, as shown in the following drawing.
When we are leading the power supply cables from one cabinet to another, we must make sure that the cables do not block the closure of the cabinets. The cables should be led from the air intake hood in the bottom part of the cabinets,. It is better to sheaf the cable with the binding-wire in the middle, as the following photo shows.
8.1 Electrical Check
Check if there is short circuit among L N G. Check if there is open circuit among all wires.
Check if the maixmum current of the cascaded power cables exceeds the endurance of the cable.
8.2 Signal Check
Communicatin connection
Video sources connection
Signal wire connection of cabinets
