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CGT 660

2.4  d

esCription

 

The Digital Modulator CGT 660, in the following called COFDM-QAM module 
converts two COFDM-modulated data streams into two QAM-modulated data 
streams. The COFDM-QAM module has two HF inputs, one HF output and 2 
loop-through outputs.

 

The COFDM-QAM module is equipped with two channel strips ("

A

" and "

B

"). 

The channel strips consist of the digital tuners, the digital signal processing lev-
els and an output converter. The channel strips are indicated in the head-end 
station display with "

Bx …A

" and "

Bx …B

". Using an adequate CA module 

encoded channels can be decoded via channel strip "

A

". The control of the 

module takes place via the control unit of the head-end station.

 

Two 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.  This  enables  service  information 
(NIT – Network Information Table) to be changed, data rates to be increased 
(stuffing) and stations to be deleted from the transport stream (thus optimising 
bandwidth for the other stations being transmitted). In addition, the operator 
ID (required for e.g. visAvision) can be set. 

 

The  HF  output  signals  are  sent  through  the  HF  output  of  the  COFDM-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. 

 

The COFDM-QAM module operating software 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 COFDM-QAM 
module, the software "

BE-Flash

" and the current assembly instructions on the 

website "

www.triax.com

".

 

To operate the COFDM-QAM module the 

software version of the control unit

 

must be "

V 10

" or higher.

 

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

Содержание CGT 660

Страница 1: ...r ultimate connection Assembly Instructions Head End Digital Modulator Terrestrial CGT 660 Art No 325022 GB As well as this supplementary Assembly Instructions the Assembly Instructions for the CSE 28...

Страница 2: ...CA module 9 3 2 Installing the COFDM QAM module 10 3 3 Connecting the COFDM QAM module 11 4 The control panel at a glance 12 4 1 Menu items 12 4 2 Functions of the control panel buttons 12 5 Programmi...

Страница 3: ...twork Information Table NIT 27 Network operator identification 28 Deleting data content a PID Renaming a PID 29 Deleting a PID data content 29 Renaming a PID 30 Factory reset 31 Saving data 32 Setting...

Страница 4: ...d by faulty connections or inap propriate handling of the device Check the head end station CSE 2800 according to the safety instructions listed in their assembly instruction Take precautions to preve...

Страница 5: ...F input Frequency range 146 0 862 0 MHz Channel range C 5 C 69 Input level 60 dB V 80 dB V Input impedance 75 Loop through loss 0 dB HF output Output frequency 42 0 868 0 MHz Channel separation 2 8 MH...

Страница 6: ...e demodulated transport streams This enables service information NIT Network Information Table to be changed data rates to be increased stuffing and stations to be deleted from the transport stream th...

Страница 7: ...known as zero data This in creases the data rate and consequently the output symbol rate Changing the output symbol rate suitably alters the bandwidth used halving the output symbol rate roughly halv...

Страница 8: ...frequency of channel strip B will always be 8 MHz above the output channel or the output fre quency of channel strip A If SelecPlex will be used the normal channel separation of 8 MHz can be reduced u...

Страница 9: ...e that it is suitable for the reception of several channels The module s hardware and software have been thoroughly prepared and tested Any changes made by program vendors to the structures in the pro...

Страница 10: ...numbered grooves 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...

Страница 11: ...d F terminals in the rear wall of the head end station via the cable inlets F using HF cables made on site length approx 80 cm To connect the second tuner the loop through output E of the other tuner...

Страница 12: ...ating the module and channel strip Channel setting frequency setting Output channel output frequency Output level Input channel Hierarchical modulation Station filter CA module if available only chann...

Страница 13: ...e is an LED which indicates if the channel strip is switched on Status LED Channel strip A Status LED Channel strip B 5 2 Notes on level setting In order to prevent interference within the head end st...

Страница 14: ...A with CA module Bx 1A Menu CA Edit Bx 1A TV X 04 04 X entschl sseln descrambling X 0 M M Bedienhinweise bl ttert Men s vorw rts w hlen die Eingabeposition w hlt Untermen stellen Werte ein speichert a...

Страница 15: ...only Channel strip A with CA module M Bx 1A Menu CA Edit Die angezeigte Information ist abh ngig vom verwendeten CA Modul The information displayed is dependent on the CA module used Bx 1A 01 03 Infor...

Страница 16: ...back to the Selecting the module channel strip menu item Switch on the head end station SETUP V 10 Ein On BE160 The display shows SETUP BE160 and the software version of the head end station e g V 10...

Страница 17: ...slot 1 indicates slot no 1 A indicates channel strip A TPS type of module S21 set channel V 15 software version of the module If a channel strip is selected whose modulator is switched off in stead of...

Страница 18: ...aster is 7 MHz in the range of the lower frequency bands channels C2 S20 Therefore the frequency setting is used here If one uses the existing channel raster of 7 MHz in these channel ranges this will...

Страница 19: ...g chan nel assignment This means that the output channel frequency of channel strip B will always be 1 channel 8 MHz above the output channel frequency of channel strip A Using the button move the cur...

Страница 20: ...e value noted for the first channel strip Measure the output levels of the other modulators used and make notes of their values Use the buttons to balance the higher output level of the one channel st...

Страница 21: ...LED Channel strip B Setting the fine tuning If necessary set the fine tuning 64 steps via this submenu Herein you can tune to transmitters which do not match to the chan nel grid If fine tuning is no...

Страница 22: ...reception in areas of bad receiving conditions a so called hierarchical modulation can be used by broadcasters The transmitted chan nel contains 2 data streams high and low priority In this case one...

Страница 23: ...for the COFDM QAM module The display shows e g Bx 1A TV 01 04 ZDF Meaning of the indicators in the example Bx 1A Slot 1 channel strip A TV TV channel type The currently selected station is switched o...

Страница 24: ...oll through the station list and to switch stations back on or off again In the PROGRAM Filter on menu the station filter can be switched off using the buttons Press the button If no CA module is inst...

Страница 25: ...r 1 The value will fluctuate as the data rates for individual stations are dynamically altered by the broadcasters Use the buttons to position the cursor under the digit to be set for number 1 then us...

Страница 26: ...ion marks will appear in the display Bx 1A B SR 6200 6531 STUFFING Press the button The Substitute signal in the case of an incorrect input signal FAILURE is activated Substitute signal in the case of...

Страница 27: ...NIT This process may take a few seconds Then the NIT is generated added and sent to all NIT cassettes The other NIT cassettes also add this new NIT The status of all NIT cassettes in the NIT menu cha...

Страница 28: ...The network operator e g requires that you set the operator ID of the visAvision transponder to 2 Use the buttons to position the cursor under the digit to be set Use to change the operator ID from 0x...

Страница 29: ...eam can be deleted tables will not be changed First select the desired memory location using buttons Use button to place the cursor under the right digit of the PID input field and set the hexadecimal...

Страница 30: ...f the PID to be changed e g 1FFE using buttons Bx 1A B 01 x1 FFE PID drop Place the Cursor below the drop indicator using button Enter the new PID e g 1FFD using buttons Bx 1A B 01 x1FFE PID x1FFD Rep...

Страница 31: ...ACTORY S S If you don t like to invoke the factory defaults press button The Saving data MEMORY menu is activated Page 32 Press the button The factory defaults are invoked FACTORY STORE Press the butt...

Страница 32: ...g and your smart card must be selected in the Station filter PROGRAM menu page 23 Where both scrambled stations and unscrambled regional broad casters are transmitted via a single channel short term p...

Страница 33: ...CA Edit M Bx 1A 01 03 Information MENU M M S S Bx 1A TV X 04 07 By pressing the button you can skip the Configuring the CA module CA menu and activate the QAM modulation QAM menu page 24 Press the bu...

Страница 34: ...be descrambled Bx 1A Menu CA Edit M Bx 1A 01 03 Information MENU M M S S Bx 1A TV X 04 07 The display shows e g Bx 1A TV X 04 07 Meaning of the indicators in the example Bx 1A Slot 1 channel strip A...

Страница 35: ...hten all cable connections cable terminals and cover screws in order to maintain compliance with current EMC regulations Securely tighten the cable connections F connectors using an open ended spanner...

Страница 36: ...402 00 Kanal Channel Kanalmittenfrequenz Channel centre frequency MHz S 34 410 00 S 35 418 00 S 36 426 00 S 37 434 00 Kanal Channel Kanalmittenfrequenz Channel centre frequency MHz S 38 442 00 S 39 45...

Страница 37: ...Alterations reserved Technical data E O E V15 19062012 Service TRIAX A S Bj rnk rvej 3 DK 8783 Hornsyld...

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