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CGS-2 764 C

2.4  d

esCription

 

The Head-end Digital Transmodulator QAM "CGS-2 764 C", in the following 
called QAM module converts four DVB-S/DVB-S2 modulated data streams into 
four DVB-C (QAM) modulated data streams. The QAM module has two SAT-IF 
inputs and one RF output.

 

The QAM module is equipped with four channel strips ("

A

" … "

D

"). The chan-

nel strips consist of the digital SAT tuners, the digital signal processing levels 
and an output converter. For channel strips A/B resp. C/D adjacent channel 
setting is fixed.

 

Using  adequate  CA  modules  scrambled  channels  can  be  descrambled  via 
channel strips "

A

" and 

"C"

. The control of the module takes place via the con-

trol unit of the head-end station.

 

Four LEDs indicate if the respective channel strip is switched on (LED illumi-
nates) or off, and also provide an indication of the signal quality based on their  
colour.

 

The integrated TPS module (Transport Stream Processing) processes the data 
from the demodulated transport streams. 

 

Channel as well as frequency setting is possible for modulators "

A

" and "

C

". 

The modulators "

B

" and "

D

" work at a spacing of + 8 MHz to modulators"

A

and "

C

". Herein only frequency setting (frequency spacing of channel strips 

"A <–> B" and "C <–> D") is possible to reduce the bandwidth at signals of 
low data rates.

 

The QAM modulated RF output signals are sent through the RF output of the 
QAM module to the output collector.

 

When the head-end station is switched on, the two-line LC display shows the 
"

SETUP

" menu and the software version of the control unit. The head-end sta-

tion output level can be adjusted in this menu. 

 

To operate the QAM module the software version of the control unit (head-end 
station) must be "

V 10

" or higher. The operating software of the QAM module 

and the head-end station can be updated using a PC or notebook and the 
software "

BE-Flash

" via the 9-pin D-SUB socket on the head-end station. You 

can find the current operating software for the head-end station and the QAM 
module, the software "

BE-Flash

" and the current assembly instructions on the 

website "

www.triax.com

".

 

The QAM module is designed exclusively for use in the CSE 2800 head-end 
station.

Summary of Contents for CGS-2 764 C

Page 1: ...r ultimate connection Assembly Instructions CGS 2 764 C Head End Digital Modulator 4 x QAM As well as this supplementary Assembly Instructions the Assembly Instructions for the CSE 2800 apply Art No 3...

Page 2: ...0 3 3 Connecting the QAM module 11 4 The control panel at a glance 12 4 1 Functions of the control panel buttons 12 4 2 Menu items 12 5 Programming 13 5 1 Preparation 13 5 2 Notes on level setting 13...

Page 3: ...on the installa tion and operation of antenna systems To ensure electromagnetic compatibility make sure all connections are tight and the covers are screwed on securely No liability is accepted for d...

Page 4: ...pe of delivery 1 Head end Digital Modulator QAM CGS 2 764 C 1 RF connection cable 1 CD assembly instructions 1 Brief Assembly Instructions 2 2 Meaning of the symbols used Important note General note O...

Page 5: ...s QPSK 1 2 2 3 3 4 5 6 7 8 DVB S2 modes QPSK 1 2 3 5 2 3 3 4 4 5 5 6 8 9 9 10 8PSK 3 5 2 3 3 4 5 6 8 9 9 10 Symbol rate DVB S QPSK 1 45 MSymb s Symbol rate DVB S2 QPSK 4 5 45 MSymb s 8PSK 4 5 45 MSymb...

Page 6: ...t streams Channel as well as frequency setting is possible for modulators A and C The modulators B and D work at a spacing of 8 MHz to modulators A and C Herein only frequency setting frequency spacin...

Page 7: ...the ORGNET ID is changed a new NIT must be generated Changing the NIT The transport stream contains data in the form of tables which the receivers evaluate and require for convenient use The TPS modul...

Page 8: ...output symbol rate to a higher value Defined symbol rates Some cable operators specify a fixed symbol rate e g 6 900 kSymb s 3 Installation Ensure the head end station is mounted so it will not be abl...

Page 9: ...d software of this cassette have been thoroughly prepared and tested Any changes made by programme provider to the structures in the pro gramme data might impair or even prevent this function When wor...

Page 10: ...oves without a contact strip on the board at the rear wall of the housing are for add on modules only Open the housing of the head end station in accordance with the assembly instructions for the CSE...

Page 11: ...preinstalled F terminals in the rear wall of the head end station via the cable inlets F using RF cables made on site length approx 80 cm or if applicable connect each to one of the outputs of a retro...

Page 12: ...unctions to be set are underlined With the button select the channel strip other modules You can use the button to select the following menu items Output signal settings Modulator on off level Output...

Page 13: ...h on the channel strip modulator if necessary page 18 For each chan nel strip there is an status LED which indicates if the channel strip is switched on Status LEDs Channel strip A Channel strip B Cha...

Page 14: ...EQ CN 9 Bx 4A 11835 0 7 01 06 Bx 4A TV Das Erste on off 0 20 dB A B Bx 4B C D Bx 4D Frequenzabstand frequency separation Tables Single Carrier In A In B DVB S QPSK 8PSK DTV SETUP V 10 M M M M M M M M...

Page 15: ...off on M M M M M M M M Bx 4 MEMORY A Einstellung speichern store factory defaults S M M M A Bx 4 Defaults FACTORY Bx 4 STORE FACTORY S Werkeinstellung aufrufen invoke factory defaults S M nur Tuner A...

Page 16: ...module channel strip Switch on the head end station The display shows SETUP BE160 and the software version of the head end station e g V 10 The output level of the output collector can be adjusted in...

Page 17: ...rsion of the module Press the button The Output settings OUTPUT main menu is activated Output settings In this menu you select the modulator for which you would like to do the output settings in the r...

Page 18: ...annel Frequency FREQ submenu is activated Channel Frequency In this menu you can adjust the output channel only at modulator A and C or the output frequency of the respective modulator The QAM signal...

Page 19: ...pacing to the modulators A and C can be set via the frequency setting Frequency setting 42 0 MHz 860 0 MHz modulators A D FREQ 834 00 MHz Bx 4A C66 A B 842 00 MHz Bx 4B C67 FREQ 850 00 MHz Bx 4C C68 C...

Page 20: ...overflow page 32 Bx 4A QAM MODE In this case increase the output symbol rate or the QAM modulation or remove stations from the data stream using the station filter QAM Modulation In this menu item you...

Page 21: ...se of an incorrect input signal FAILURE submenu is activated Substitute signal in the case of an incorrect input signal You use this menu to set whether a Single Carrier signal should be provid ed or...

Page 22: ...NB oscillator frequency Input In this menu select the SAT input and set the oscillator frequency of the LNB used LNB In A Bx 4A 10600 MHz Use buttons to place the cursor under the digit to be set for...

Page 23: ...of a tuner a symbol rate 7001 kSymb s is set e g at Single Channel per Carrier signals then also a transponder with a symbol rate 7001 kSymb s may be set at its second tuner DVB mode The cassette rec...

Page 24: ...in the display e g 1 8 to less than 1 MHz by varying the input frequency using the buttons Signal to noise ratio CN indicates the current signal to noise ratio in order to estimate the quality of the...

Page 25: ...ILTER no Service In this case check the configuration of the antenna system and head end station as well as the previously adjusted settings for the cassette The display shows e g Bx 4A TV 01 06 Das E...

Page 26: ...tion indication X 01 06 Bx 4A TV X Press the button The PID monitoring CA MENU submenu is activated PID monitoring This menu is only displayed if Tuner A C is selected in the Input settings main menu...

Page 27: ...NU Bx 4A PID Check on CA MENU The display shows e g Bx 4A 01 05 MENU Meaning of the indicators Bx 4A Slot 4 tuner A 01 05 The first of five menu items is activated MENU The menu of the CA module is ac...

Page 28: ...KIP CA 0x0000 Using buttons select the desired memory location PID 1 9 Use to position the cursor under the digit of PID to be set Press to set the respective digit of the PID needed as hexadecimal va...

Page 29: ...annel strips a new identification must be allocated to the further transport streams to realise the channel search of the settop boxes connected without mistakes If the ORGNET ID is changed also a new...

Page 30: ...utton place the cursor under bat and switch on BAT or off bat the bouquet association table using the buttons Using the button place the cursor under sdt other and switch on SDT OTHER or off sdt other...

Page 31: ...he cursor under the respective digit of the hexadecimal number of the PID to be changed 0x0000 and set the hexadecimal number using Use the buttons to place the cursor under the respective digit of th...

Page 32: ...individual stations are dynamically modified by the broadcasters Is the current needed data rate higher than the maximum data rate exclamation marks appear in the display and the status LED is blinki...

Page 33: ...ettes also add this new NIT The status of all NIT cassettes in the NIT menu changes to on The display shows read copy To switch off the new NIT off press the button The NITs of the other NIT cassettes...

Page 34: ...RY STORE By pressing the button you will be returned to the menu item Output settings without invoking the factory defaults page 17 Press the button The factory defaults are saved The display shows ST...

Page 35: ...rogrammed data is saved by pressing the button You will be returned to the menu item Selecting the module channel strip via A page 17 By pressing the button you will be returned to the menu item Selec...

Page 36: ...nt EMC regulations Securely tighten the cable connections using an appropriate open ended spanner After programming connect the modulator output E to one of the input sockets G of the output collector...

Page 37: ...00 C 21 474 00 C 22 482 00 C 23 490 00 C 24 498 00 C 25 506 00 C 26 514 00 C 27 522 00 C 28 530 00 C 29 538 00 C 30 546 00 C 31 554 00 C 32 562 00 C 33 570 00 C 34 578 00 C 35 586 00 C 36 594 00 C 37...

Page 38: ...Alterations reserved Technical data E O E V4 27112014 Service TRIAX A S Bj rnk rvej 3 DK 8783 Hornsyld...

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