Chengdu Jiexun Electronics Com.,Ltd User Manual V1.8
Contents
1. indicator turn on green of the front panel LCD screen display System initializing Please be patient After a while the Initialization finished andsthe indicator turn off LCD screen display Jiexun Electronics PSK Mdulator V 8 This time at the front panel the red alarm indicator doesn t turn on that means working normal If the red alarm indicator turn on namely there is no transport stream be input into alarm 3 4 2 Enter Main menu of QPSK Modulator Under above situation press Enter to unlock the keyboard and enter into the main menu Press A V LCD screen in order cycle display as below Page 11 15 OUTPUT parameter Press Enter System parameter Press Enter Alarm information Press Enter 3 4 3 Paramiter modify illustration 1 RF Rate setting After the Boot system initialization finished and the indicator turn off LCD screen display Jiexun Electronics Mdu ator V1 8 Based on above station press Enter unlock keyboard and enter QPSK Modulator main menu the LCD screen red OUTPUT parameter Press Enter Page 12 15 Re press ENTER LCD will display RF Rate Current 0950 000000 2 Press Enter set 0950 000000MHz Re press ENTER there will be a cursor on the screen press LEFT LEFT button and move to the right place press UP DOVVN to reset the parameter Press ENTER again and the cursor disappear this setting be finished The mo2. r User Manual vis JXDH 6502 QPSK Modulator Sending Signal To Satellite Chapter 1 Product Outline 124 Outline QPSK digital TV modulator adopts advanced digital signal processing technology of vvhich receiving port can directly use digital satellite receiver for receiving thus fully complying DVB S standard Not only can it gain relatively high frequency spectrum usage ratio having very strong anti interference and relatively high price performance ratio but also it can well comply analogue FM microwave equipment QPSK digital TV modulator adopts various processing method such as random energy spread processing RS coding convolution interweave contracting convolution coding and pre modulating baseband shaping processing etc all these contribute a high guarantee to the data transmitting performance 1 2 Features Apply Comply with DVB SETS300 421 QPSK modulating standard Frequency output range 1238 1278MHz Adopt DDS high stabilization of output frequency narrow frequency step low phase noise Out Interface to connect 10M oscillator Big input stream Support input system efficient rate real time detect display and alarm display Output level is adjustable from 0 20dB 0 5db step through adjust the panel Interface meet AS standard Capacity stable and reliable strong anti jamming RF level output delay Page 1 15 MMDS digital TV head end e Satellite digital TV broadcasting e Terrestrial
3. 4 1 ASI Output Port Connection User can find ASI output port on the Equipment according to connector mark described in the rear panel illustration and then connecting the ASI cable in the accessories one end to the INMOD 6502 QPSK modulator s ASI output port and the other end to the scrambler s or Modulator s input port multiplexer s ASI output port and its connected ASI cable connector illustrated as follow Page 8 15 Chapter 3 Operation INMOD 6502 QPSK Modulator have the user operation interface in the front panel Before working the default setting is available user also can modify and re setting the parameters of QPSK Modulator QPSK Modulator parameters including Select language RF Rate Symbol rate Convcode Coefficient level Attenuator Load Factory Setting The Menu with both Chinese and English Language for option steps as below 3 1 Keyboard Function of Front Panel ENTER Active the locked LCD choose the parameter which to be modify and confirm the modified parameter afterwards UP DOWN LEFT RIGHT buttons Select the position of the parameter modify the activated parameter and turn over MENU Menu Return Cancel After 2 minutes of no any operation menu will return to the startup display and waiting to be activated 3 2 INMOD 6502 QPSK Modulator Main menu After installing the jxdh 6502 QPSK Modulator per above instruction open power LCD display System initializing Please be patient Meantime t
4. digital TV eImage Supervise Video On Demand VOD e Long distance teaching e Video Conference 1 3 Performance indicators Modulate mode QPSK Input port ASI standard port Output port 5001 N head Input TS level 800410 mV Frequency output range 1238 1278 MHz Output frequency adjustable step Wide 125KHz narrow 5Hz 10M oscillator input level gt 10dBm Max Output level gt 0dBm Output level adjustable range 0 20dB 0 5 dB step Symbol rate 3 10MBauds 1 2 2 3 3 4 5 6 7 8 for random option Dimension 44mmx482mmx430mm Temperature 0 45 C work 20 80 C storage Miscellaneous Power 220VAC 10 50Hz 25W Installation hole distance 460mm 1 4 System composing and principle Page 2 15 ASI RF output Data QPSK encode TVQ modulate RF modulate processing Netvvork manage control interface QPSK Modulator composed as belovv main module Digital disposal cell transform the input signals to standard signals and make essential data processing to achieve QPSK modulate pretreatment QPSK modulate cell transform data stream to Frequency Spectrum signal Modulator output RF signal from 250 750MHz 450 1000MHz or 950 2150MHz CPU LCD LED keyboard cell finish keyboard input LED display and intelligent control etc Principle JXDH 6502QPSK modulator comply with DVB S standard television sign
5. equal or greater than 25 mm 2 2 4 Frame Grounding All the machine frames should connect to protective copper strip The grounding wire should be as short as possible and avoid circling The section of the conjunction between grounding wire and grounding strip should be equal or greater than 25mm 2 2 5 Device Grounding Connecting the device s grounding rod to frame s grounding strip with copper wire Wire s Connection The power supply outlet is located at the left of rear panel and the power switch is just above it The protective grounding wire connective screw is located at the down left side of power supply outlet e Connecting Power Cord User can insert one end into power supply outlet while insert the other end to AC power e Connecting Grounding Wire When the device solely connects to protective ground it should adopt independent way say share the same ground with other devices When the device adopts united way the grounding resistance should be smaller than 1 s Caution Before connecting power cord to Encoder user should set the power switch to OFF 2 4 Signal Wire Connection Signal wire connection including signal input wire and output wire when signal wire connect with QPSK modulator should in coaxial line which with Q9 head for each ends QPSK modulator output ports are one main output one monitoring output both are F head ports Page 7 15 ASI input connection wire sketch 2
6. al duplicate process via MPEG 2 compress encode and other date stream then deliver to QPSK modulator QPSK encode is according to DVB technical criterion such as FEC encode RS correct encode etc after disposal by uplink frequency conversion and then output to TV channel and microwave channel in order to broadcast in HFC microwave MMDS internet available for digital TV digital broadcasting video order internet video conference etc such digital broad band apply system 1 5 Appearance and description Front panel illustration INMOD 6502 QPSK Modulator Digital enu ENS Enter A Power E O mt ie sal T O A Cheng Du Jiexun Electronics Co LTD TN 3 BE ZS il Page 3 15 1 LCD screen display 2 Povver indicator 3 TS signal detect alarm indicator 4 UP DOVVN LEFT RIGHT button 5 Confirm button 6 Menu button Back panel illustration Etherne RS232 ASI IN 10MHZIN RF TEST OUT AC110V 220 50 60Hz 1 Ethernet interface RS232 input interface ASI Asynchronous Serial input interface Modulator outside 10MHz source input interface 2 3 4 5 RF test output interface 6 RF out output interface 7 Power on off 8 Power Fuse 9 Power socket 10 Grounding Page 4 15 Chapter 2 Installation guide 2 1 Acquisition check Open the device package and check the articles do check the packing material of samll parts check packed goods according to packing list or below ite
7. dification of other parameters are in the same vvay 3 4 4 Load Factory Setting After above setting and press DOWN VW the display reads System parameter Press Enter Re press ENTER it will display Ser Local IP Curren 101 101 101 020 Press UP A when LCD display Load Factory Setting Yes No Press LEFT RIGHT for option press ENTER means enter to confirm restoring setting or not press MENU to exit factory setting Page 13 15 The symbol rate of this machine is 2 45Mbauds random optional the value of symbol rate is associated with the efficient TS stream rate the more stream rate the more symbol rate the relationship of symbol rate and TS stream rate is roughly that symbol rate efficient stream rate 1 6 efficient stream rate can be measured by stream analysis equipment generally speaking the relationship between efficient stream rate and program quantity is approximate proportionality more programs more TS efficient stream rate 3 5 Refer to the manual of network management for operation details 3 6 System operation trouble shooting 3 6 1 LED Indicator status There are 2 LED indicators on the panel C1 Power is the indicator of power supply 2 Alarm is the alarm indicator for input stream 3 6 2 Trouble shooting 1 Power indicator do not turn on please check the power plug and the power switch to see if it is turned on 2 Alarm indicator turn on and the mach
8. e for long time under 0 45 C operate for short temperature time installing air conditioning is recommended Relative Under 20 80 operate for long time under10 90 operate for short temperature time 86 105KPa Installing rubber strip for sealing door gaps and dual level glasses for Door amp window window be covered with wallpaper or brightness less paint rather than easy Wall pulverization dope Requiring device power air conditioning power and lighting power are Power independent to each other Device power requires AC power 220V 50Hz 50W Please carefully check before running 2 2 3 Grounding requirement m All function modules good grounding designs are the base of reliability and stability of device Also they are the most important guarantee of lightning arresting and interference rejection Therefore system must follow this rule m Coaxial cable s outer conductor and isolation layer should keep sound electric conducting with the metal housing of device m Grounding conductor must adopt copper conductor in order to reduce high frequency impedance and the grounding wire must be as thick and short as possible m 2 terminals of grounding wire must make sure for well electric conducting and process for antirust Page 6 15 m It is prohibited that users use other devices as part of grounding wire s electric circuit m The section of the conjunction between grounding wire and device s frame should be
9. he green power indicator of the front panel turn on After a while the indicator turn off and LCD display Software version V1 8 Press Enter unlock keyboard Press Enter and enter the main menu of JXDH 6202 4 in 1 Encoder If the Red warning indicator doesn t turn on the same time that is to say there is no transport stream be input into alarm Page 9 15 OUTPUT parameter QPSK Modulator main menu Press Enter System parameter Press Enter Alarm information Press Enter 3 3 QPSK Modulator submenu 3 3 1 OUTPUT parameter RF Rate Symbol rate Level Attenuator Convcode coefficient RF QUT State Ser Local IP Ser Subnet Mask 3 3 2 System parameter Ser Gateway address Select Language Load Factory Setting 3 3 3 Alarm information NO TS Input Page 10 15 Current 0950 000000MHz Current 30000Kbps Current 10 0db Current 3 4 current ON 101 101 101 020 255 255 255 000 101 101 101 004 Current Current Current Current English Yes No Elapsed 0000222 minute 3 4 Setting When you are at any parameter on submenu just press Enter to enter the modify interface and then press Up Dovvn Left Right to modify the value and press Enter again to return to upper menu Meantime you can see the modified parameter just now Here are the detailed introduction 3 4 1 Initialization After finished installation per before instruction open the power switch the power
10. ine do not operate properly with fault alarm please check ASI IN port and the connecting cable to find and slove the problem Page 14 15
11. ms INMOD 6502 QPSK Modulator 1821 User manual Icopy e Coaxial line with Q9 head for each ends 1 radix e AC input power cord 1 radix If there is any missing or mismatch of above items please contact local dealer 2 2 Installation preparation Follow below steps when installing the device The detailed installation will be described at the rest part of this chapter the back panel illustration is for concrete positation reference Following content is the main for this chapter Checking if there any possible missing or damage device during transport Checking if the situation is suitable for installing Install XDH 6502QPSKmodulator Connecting signal wires Connecting communication port for option 2 2 1 Installation flow per below chart Connecting Acquisition Fixing eee Connecting Setting Running Check Device Power Signal Wire Parameter Device Cord 2 2 2 Environment Requirement Page 5 15 VVhen user install machines array in one machine hall the Machine hall distance betvveen 2 rovv of machine frames should be 1 2 1 5m space and the distance to vvall should be no less than 0 8m Electric Isolation Dust Free Machine hall Volume resistivity of ground anti static material 1 107 1 10905 Grounding current limiting resistance 1 MQ Floor bearing should be greater than 450Kg m Environment Under 5 40 C operat
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