Contents 1 Safety regulations ....................3 2 General information .................... 3 2.1 Packing contents ..................3 2.2 Technical data ..................4 2.3 Description ................... 5 2.3.1 Manual display of the software version .......... 6 2.3.2 How the TP module works ............6 2.3.3 Explanation of the term “symbol rate”...
Safety regulations Important • Assembly, installation and servicing must be carried out by an authorised electrician. • Switch off operating voltage before the start of assembly or service work or pull out the mains plug. • Install the system … - in a dust-free, dry environment - so that it is protected from moisture, vapours, splashing water and damp - somewhere protected from direct sunlight...
2.2 Technical data The devices meet the following EU directives: 73/23/EEC, 89/336/EEC The product fulfils the guidelines and standards for CE labelling. HF input: Frequency range: 950 … 2150 MHz Frequency raster: 1 MHz Level range: 35 dBµV … 80 dBµV DVB-S modes: DVB-S DVB-S2 modes:...
2.3 Description The Cassettes convert two DVB-S-/DVB-S2-modulated data flows into two QAM- modulated data flows. The Cassettes are controlled via the head end. Each Cassette has two inputs and one HF output. Each Cassette is equipped with two channel strips (A and B). The channel strips consist of digital SAT tuners, the digital signal preparing units and the output converter.
2.3.1 Manual display of the software version If necessary, you can call up the display of the software version of the control unit manually: • Hold down any two keys of the control unit simultaneously until the display goes dark and the software version, e.g. “V 35”, is displayed. 2.3.2 How the TP module works When converting the QPSK-modulated signal to a QAM-modulated cable signal, the demodulated data stream can be accessed via the integrated TP module.
2.3.3 Explanation of the term “symbol rate” Modulation schemes such as QPSK and QAM transmit multiple bits simultane- ously. These are referred to as symbols. In addition to the user data flow which transmits video and audio information, error correction bits are transferred. The FEC number states the ratio of error correction bits to user bits.
2.3.4 Bandwidth-efficient assignment of cable channels with low bandwidths (SelecPlex ® Channels with low bandwidths are the result of filtering out stations which are not required. These “narrow” channels can then be arranged in one channel to save space. To do this, activate fine tuning in the “Output channel” menu (as- signment outside the official channel raster).
Assembly 3.1 Installing the Cassette arning Before inserting or changing Cassettes, pull the mains plug of the head end out of the mains socket. • Unscrew the fastening screws from the bracket in the head end. • Insert the Cassette into a free slot and push it into the housing. •...
Note: The operating software of the Cassette can be updated via the socket “RS 232” (9-Pin-Sub-D) by means of a PC or notebook. Use the “BE-Flash” software as the update software. You can find the current operat- ing software of the Cassettes on the website “www.gss.tv”. The operator control panel at a glance 4.1 Menu items Program the Cassette using the keys on the head end control unit.
Programming The following examples show how the HDTV 584 TPS Cassette is programmed; the output channels can be set from S21 … S41. Set the other Cassettes listed in the same way. 5.1 Preparation Notes: – Using the menu “LEVEL CONTROL” the Cassette generates an equally power- ful HF carrier on the video carrier frequency of the channel.
5.3 Cassette programming • Switch on the head end. —> The display shows the software version of the head end (e.g. V 35). —> The processor reads the Cassettes‘ data (approx. 10 seconds). BE–Remote BE–Remote V 35 V 35 Ein/On Ein/On Please wait ...
To query software versions: Software version of the Cassette and the TP module: Press the button. Return to main menu: Press the button again. • Press the button. —> The “OUTPUT” menu is activated. Setting the output channel t > 2 s t >...
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The QAM signal is transmitted with a bandwidth of 8 MHz. This means that you can only use the channel centre fre- quency of the existing channel raster in the range of chan- nels S21 … C69 (frequency raster 8 MHz). The frequency raster is 7 MHz in the range of the lower channel ranges (channels S2 …...
• Press the button. —> The sub menu “Modulator settings” – “OUTPUT: Modulator” is activated. Modulator settings Bx 1A Bx 1A OUTPUT: OUTPUT: Modulator: Modulator: on / off on / off • By pressing the buttons, switch the modulator (HF output) “on” (default setting) or if necessary switch it “off”.
• Measure the output level of the channel strip using the con- nected antenna test receiver and note the measured value. • Setting the second channel strip compare the meas- ured value with the noted value of the first channel strip.
Inverting the user signal For exceptions and “older” digital cable receivers, the spec- tral position of the user signal can be inverted. OUTPUT: OUTPUT: Bx 1A Bx 1A Spectrum Spectrum normal normal normal / inverse normal / inverse • By pressing , set the spectral position “normal”/ “inverse”.
Deleting a PID In this menu a PID of the data flow can be deleted. Bx 1A Bx 1A DROP: DROP: ◀ ◀ ▶ ▶ – – 0xFFFF 0xFFFF • Use the buttons to place the cursor under the respec- ◀...
Conditional Access Table In this menu, you can change the Operator ID, for example of the visAvision transponder (Eutelsat 8° West). CAT: CAT: Bx 1A Bx 1A original original CAT: CAT: Bx 1A Bx 1A ◀ ◀ ▶ ▶ – –...
• If the operator ID is to be reset or changed: Press to return to the CAT input menu “Bx 1A CAT”. There the current operator ID is replaced by the original operator ID. The procedure “CAT is to be changed” can be repeated or by pressing the button it can be cancelled.
Setting the input symbol rate and the DVB mode Setting the symbol rate The symbol rate of the satellite transponder can be found in the current transponder tables of the various satellite trade magazines or in the websites of the according pro- gram providers.
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ration of the antenna system and head end as well as the preceding settings of the Cassette. Bx 1A Bx 1A INPUT: INPUT: Bx 1A Bx 1A ◀ ◀ ▶ ▶ – – 14.6 dB 14.6 dB (+ 9.6)OK (+ 9.6)OK f=11836 f=11836 -0.4...
Setting the station filter The default setting for the station filter is “off”. Bx 1A Bx 1A FILTER: FILTER: Bx 1A TV Bx 1A TV 01/18 01/18 ◀ ◀ ▶ ▶ – – Prg. Prg. Filter Filter Das Erste Das Erste AUDIO AUDIO ▶...
—> The station filter remains deactivated (“off”) if no sta- tion was removed. • Test the status of the individual stations: VIDEO If the filter is switched on, press the button. In this mode you can use to select stations in the program ◀...
• Press the button. —> The menu “Network Information Table” – “NIT” is activated. Network Information Table (NIT) Bx 1A Bx 1A NIT: NIT: on / off on / off – – => Make => Make ▶ ▶ • To switch NIT “on” or ”off”: Press the button.
In this case, you must create a NIT (“Make”). The NITs of all the QAM Cassettes in the head end are thus automatically updated. Saving settings • Press the button. —> Return to “Selecting the Cassette” (page 15). —> The “new” settings are saved permanently. —>...
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