LED displays Technical Index
(1) Display screen is 1/8scan
The datas transmitted by the single net line introduced from the front controlling card are 768 * 160pixel, 1024 grades gray. The rear full color HUB PANEL at the update rate of 180 Hz each can control 256 * 160pixel, at the update rate of 360 Hz, each can control 128 * 160 pixel. Certain HUB Panels can be conducted cascading . according to requirements.
(2) Display screen is 1/4 scan
When the update rate is 180 Hz, every full color HUB Panel can control 384 * 80 pixel;when update rate is 240 Hz, every panel can control 256 * 80pixel;at the update rate of 480 Hz, each can control 128 * 80pixel. Among HUB Panels can conduct cascading.
HUB PANEL cascading, can be stated as the following: every full color HUB Panel have 2 groups of RJ-45 connecting port, every group has 2 connecting ports, 1 in and 1 out, altogether 4 connecting ports. Usually, only jointing 1 group RJ-45, at this time, the cascading among HUB Panels is series connection. If joint 2 group RJ-45, cascading has two modes (1) 1 in 2 out, HUB Panels can be series connection and parallel connection, when there are many HUB Panels in the system, the mode can ensure the completeness of signal transmission; (2)2 in 2 out, this mode is 2 sets of main controlling system to control 1pc LED display screen, in the front, there are 2 main controlling cards to individually transmit two different sets of data, full color HUB PANEL judge the priority. The corresponding display screen position of the pixel which controlLED by every cascading HUB Panel is decided by the the No. 7 & 8 digits of the numeral dialing tray which be instalLED on the Hub Panel.
full color main controlling card
full color HUB panel
(3) Cable Connecting Illustration
main controlling card is placed inside the PCI slot of the computer , via DVI connecting port collect data from display card, besides, data can be transmitted from oriental star and galaxy display cards via 50 core CN2 connecting port; full color HUB PANEL can be put at the back of display screen, cascading mode shown in the figure is series connection, each HUB PANEL only show one group RJ-45 connecting port, 1 in and 1 out.
(4) Installation Step
| 1 | Shut off the power of computer, pull out the power plug, open the machine box, plug ABSEN 2002 main controlling card into certain PCI slot, fixed it with screws. |
| 2 | For the ordinary main controlling card, connect CN2 input port of main controlling card and the LED digital output port of multi-media video frepuency card LED with one 50-core flat cable; If it is DVI main controlling card, with special DVI-DVI communication line connect main controlling card DVI port and display card DVI connecting port; close the machine box; |
| 3 | Fix full color HUB PANEL at the proper place of the back of display screen, connect the unit panel of display screen and the output port of full color HUB PANEL by flat cable, and connect the power and ground line at the same time. |
| 4 | Use super 5 net lines(8 cores net line to connect ABSEN 2002 main controlling card and full color HUB PANEL according to predetermined cascading mode, make sure every net cable is no longer than 100m; |
| 5 | Confirm the right connection, start the computer and enter into Windows operation system; |
| 6 | Under DOS or order prompt window, run accompanying main controlling card driver of the system, relevant hint information will appear after loading successfully, meanwhile the output signal indicator light of the main controlling card glitter, input signal indicator light of full color HUB PANEL keeps lighting; |
| 7 | Run the accompanying play software, then can start the normal play of display screen. |
(5) About full color HUB PANEL
Full color HUB PANEL has 10 40-core pin slot, seen from the front, from the top down(RJ-45 connecting port in the left side)areJP301 - JP310 in turn, individually corresponding to the relevant location of display screen, the definitions of the connecting ports are shown as following table:
Full color HUB PANEL has 10 40-core pin slot, seen from the front, from the top down(RJ-45 connecting port in the left side)areJP301 - JP310 in turn, individually corresponding to the relevant location of display screen, the definitions of the connecting ports are shown as following table:
| 1 GND | 2 BLUE |
| 3 GND | 4 LINH |
| 5 GND | 6 A |
| 7 GND | 8 B |
| 9 GND | 10 C |
| 11 GND | 12 D |
| 13 GND | 14 RED |
| 15 GND | 16 STB |
| 17 GND | 18 CLK |
| 19 GND | 20 GREEN |
| 21 GND | 22 BLUE |
| 23 GND | 24 LINH |
| 25 GND | 26 A |
| 27 GND | 28 B |
| 29 GND | 30 C |
| 31 GND | 32 D |
| 33 GND | 34 RED |
| 35 GND | 36 STB |
| 37 GND | 38 CLK |
| 39 GND | 40 GREEN |
The first 20 pins have the same definition as the last 20, each with 1 group of signals; G
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