GSS HDMT 1290 User manual

English
CLASS
KLASSE
HDMT 1290
Head-End Digital Modulator
Terrestrial
GSS
Grundig SAT Systems GmbH
Beuthener Strasse 43
D-90471 Nuremberg
Phone: +49 (0) 911 / 703 8877
Fax: +49 (0) 911 / 703 9210
E-mail: [email protected]
Internet: http://www.gss.de

- 2 - HDMT 1290
Contents
1 Safety regulations and notes .....................................................................................3
2 General information .................................................................................................4
2.1 Packing contents..........................................................................................4
2.2 Meaning of the symbols used........................................................................4
2.3 Technical data.............................................................................................4
2.4 Description .................................................................................................5
2.5 Software query............................................................................................6
2.6 How the TPS module works...........................................................................6
3 Assembly .................................................................................................................7
3.1 Installing the cassette....................................................................................7
3.2 EMC regulations..........................................................................................7
3.3 Connecting the cassette................................................................................8
4 The control panel at a glance ....................................................................................9
4.1 Menu items.................................................................................................9
4.2 Control panel..............................................................................................9
5 Programming .........................................................................................................10
5.1 Preparation...............................................................................................10
5.2 Notes on level setting.................................................................................10
5.3 Programming procedure Channel strips “A” and “B”.......................................11
5.4 Programming the cassette ..........................................................................13
Selecting the cassette .................................................................................13
Selecting the channel strip ..........................................................................14
Selecting channel / frequency setting...........................................................15
Setting the output channel...........................................................................15
Setting the output frequency........................................................................15
Switching the modulator off or on................................................................16
Adjusting the output levels of the channel strips .............................................16
Setting the input channel ............................................................................17
Setting the hierarchical modulation ..............................................................18
Setting the station filter ...............................................................................18
COFDM parameters...................................................................................20
Setting the output signal ............................................................................... 23
Setting the transmission parameters..............................................................24
Setting the transmitter identification..............................................................25
Stuffing.....................................................................................................25
Setting a substitute signal in the case of an incorrect input signal.....................26
Setting the transport stream ID and the ORGNET-ID .......................................27
Network Information Table (NIT)..................................................................27
Deleting a PID...........................................................................................28
Renaming a PID.........................................................................................28
Factory reset .............................................................................................29
Saving settings ..........................................................................................30
6 Final procedures.....................................................................................................30
7 Channel and frequency tables .................................................................................31

- 3 - HDMT 1290
1 Safety regulations and notes
• Assembly, installationand servicingshould becarried outby authorised
electricians.
 • Switchofftheoperatingvoltageofthesystembeforebeginningwithassem-
bly or service work or pull out the mains plug.
 • Donotperforminstallationandserviceworkduringthunderstorms.
 • Installthesystemsoitwillnotbeabletovibrate…
 - inadust-free,dryenvironment
 - insuchamannerthatitisprotectedfrommoisture,fumes,splashingwa-
ter and dampness
- somewhere protected from direct sunlight
- not within the immediate vicinity of heat sources
- in an ambient temperature of 0 °C to +50 °C. In case of the formation of
condensation wait until the system is completely dried.
 • Ensurethatthehead-endstationisadequatelyventilated.Donotcoverthe
ventilation slots.
 • Bewareofshortcircuits
 • Noliabilityisacceptedforanydamagecausedbyfaultyconnectionsor
inappropriate handling.
 • Observetherelevantstandards,regulationsandguidelinesontheinstalla-
tion and operation of antenna systems.
 • The standards IEC/EN/DINEN50083 and IEC/EN/DINEN60728 must
be observed.
 • For further information please read the assembly instructions for the head-
end station used.
• Test the software versions of the head-end station and the cassette and
update them if necessary. The current software versions can be found at
”www.gss.de”.
Take action to prevent static discharge when working on the device!
Electronic devices should never be disposed of in the household rubbish. In
accordance with directive 2002/96/EC of the European Parliament and the
European Council from January 27, 2003 which addresses old electronic and
electrical devices, such devices must be disposed of at a designated collection
facility. At the end of its service life, please take your device to one of these
public collection facilities for proper disposal.

- 4 - HDMT 1290
2 General information
2.1 Packing contents
1 Cassette HDMT 1290
2 HF cables
1 CD (assembly instructions)
1 Brief assembly instructions
2.2 Meaning of the symbols used
Important note
—> General note
 •  Performingworks
2.3 Technical data
The devices meet the following EU directives:
 2006/95/EC,2004/108/EC
The product fulfils the guidelines and standards for CE labelling.
Unless otherwise noted all values are specified as “typical”.
HF input
Channels: ...........................................................C5…C12,C21…C69
Frequency range:................................... 177.5…226.5,474…858MHz
Input level: ...............................................................60dBμV…80dBμV
Loop through output gain..................................................................0 dB
Symbol rate ............................................................... acc. to EN 300744
COFDM modulator
Signal processing: ..........................................................DIN EN 300744
Transmission modes:................................................................. 2k,4k,8k
Types of modulation:........................................ QPSK,16QAM,64QAM
Code rates:.............................................................. 1/2,2/3,3/4,5/6,7/8
Guard intervals:............................................................ 1/4,1/8,1/16,1/32
HF output
Frequency range:...............................................42.0MHz…860.0MHz
Channels: ...........................................................C5…C12,C21…C69

- 5 - HDMT 1290
Output level: ............................................................................. 96 dBμV
Output impedance:......................................................................... 75 Ω
Connections
HF inputs: ...........................................................................2 IEC sockets
HF lopp-through outputs: ......................................................2 IEC sockets
HF output: ...........................................................................1 IEC socket
Connection strip (10-pin):...................for supply voltages and control circuits
RS-232 socket: ..................................... serial interface for software update
2.4 Description
The cassette converts two incoming COFDM -modulated signals into two out-
going COFDM-modulated signals with free selectable frequency . Individual
stations can be deleted. The cassette has two DVB-T inputs and one HF output.
General
The cassette is equipped with two channel strips (“ A ” and “ B ”). The channel
stripsconsistoftheDVB-Ttuners,thedigitalsignalpreparationunitsandthe
output converter. The channel strips are indicated in the head-end station dis-
play with “Bx …A” and “Bx …B”. The control of the cassette takes place via
the control unit of the head-end station.
Two LEDs provide an indication of the input signal quality based on their col-
our and indicate if the respective channel strip is switched on (LED illuminates)
or off. The integrated TPS module (Transport Stream Processing) processes the
data of the transport streams.
The COFDM modulated HF output signals are sent through the HF output of the
cassette to the output collector. The common output level of the channel strips
can be set at the output collector.
 Whenthehead-endstationisswitchedon,thetwo-lineLCdisplayshowsthe
software version of the control unit. To operate this cassette the software ver-
sion of the control unit must be “V 41” or higher. You can find the current op-
eratingsoftwareforthecontrolunitandthecassette,thesoftware“BE-Flash”
and the current assembly instructions on the website “www.gss.de”.
The cassette is designed for use in the following head-end stations:
STC1200,STC316,STR19-8 and PST 19-1.

- 6 - HDMT 1290
2.5 Software query
Control unit
 If necessary, you can activate the indication of the software version of the
control unit manually:
 • Pressanytwokeysonthecontrolunitofthehead-endstationsimultaneously
untilthedisplaygoesdarkandthesoftwareversion,e.g.“V 41” appears.
2.6 How the TPS module works
 After decoding COFDM-modulated signals, the demodulated data streams
can be accessed via the integrated TPS module. These data streams, also
calledtransportstreams,containseveralstationsinalltheircomponents(vid-
eo,audio,dataandserviceinformation),whichcanbechangedusingtheTPS
module.
Station filter
 Individual stations can be deleted. This reduces the data rate and, conse-
quently,theoutputsymbolrate.
Stuffing
 Thetransportstreamispaddedusingwhatisknownaszerodata.Thisensures
a steady and constant output data rate.
Changing the Transport stream and ORGNET-ID
The transport stream ID can be changed. If the stations of a transponder are
splitintothetransportstreamsofthechannelstrips”A”and”B”,oneoftheboth
transport streams a new identification must be allocated to realise the channel
search of the settop boxes connected without mistakes.
If 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 receiv-
ers evaluate and require for convenient use. The TPS module can adjust the
“Network Information Table” (NIT) to accommodate the new station data. The
“NIT” contains data which is required by the set-top boxes connected to the
cable network for the automatic search feature.

- 7 - HDMT 1290
3 Assembly
3.1 Installing the cassette
– Ensure the head-end station is mounted so it will not be able to vibrate.
Avoid,forexample,mountingthehead-endstationontoaliftshaftorany
other wall or floor construction that vibrates in a similar way.
– Before installing or changing a cassette unplug the power cable from the
mains power socket.
 • Removethefasteningscrews1of an unoccupied slot from the bracket of
the head-end station.
 • Insertthecassetteinthisslotandpushitintothehousing.
 • Alignthecassetteandapplyslightpressuretoconnectittotheconnections
of the board and the HF bus bar.
 • Fastenthecassettewiththescrews1.
0°
1
1
KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE HYBRID-VERSTÄRKER
MESSAUSGANG
–20 dBµV
AUSGANG
max. 106 dBµV
ACHTUNG!
Vor dem Kassettenwechsel
unbedingt denNetzstecker ziehen.
CAUTION!
Before changing cassettes remove
mains plug.
GrundigSATSystems
3.2 EMC regulations
To comply with the current EMC regulations, it is necessary to connect the lines
leading in and out of the head-end station using cable terminals.
When mounting the cassette in a STR 19-8 or PST 19-1 head-end station which
is installed in a 19” cabinet, make sure the connections leading in and out for
the 19” cabinet are made using cable terminals.
CLASS
KLASSE
The attenuation of shielding of the connection lines for ASI and antenna must
meet the requirements for “Class A”.

- 8 - HDMT 1290
 • Inserttherequirednumberofcableterminalsintheopeningsprovidedin
the head-end station or in the 19 ” cabinet.
—> Cable terminals are not included in the scope of delivery.
Tighten the nuts of the cable terminals until the teeth on the lock washers put un-
der have penetrated the exterior coating and a good connection is made between
the housing / 19” cabinet and cable terminals.
3.3 Connecting the cassette
76432 51
1HF input (channel strip “ B ”)
2 Status LED of the channel strip “ B ”
3 Loop-through output of HF input 1
4 HF input (channel strip “ A ”)
5 Status LED of the channel strip “ A ”
6 Loop-through output of HF input 4
7 D-SUB socket “RS 232“
The operating software of the cassette can be updated via the 9-Pin D-SUB
socket “RS-232” using a PC or notebook and the software “BE-Flash”.
You can find the current operating software on the website “www.gss.de”.

- 9 - HDMT 1290
4 The control panel at a glance
4.1 Menu items
Programme the cassette using the buttons on the control unit of the head-end
station. The two-line display of the control unit then shows the menus.
The parameters and functions to be set are underlined.
Use the key to select the following main menu items:
– Channel strip
– Channel / frequency setting
– Output channel / output frequency
– Output level
– Input channel
– Hierarchical modulation
– Station filter
– Output signal
– Transmission parameters
– Station identification
– Stuffing
– Substitute signal
– Transport stream and ORGNET-ID
– Network Information Table (NIT)
– Network/operator identification
– Deleting a PID
– Renaming a PID
– Factory reset
4.2 Control panel
The key pad on the head-end station is used to scroll through the menus step-
by-step:
scrolls forward through the menus.
select parameters in the menus.
setvalues,initiateactions.
selects sub-menus.
scrolls backward through the menus.
saves all entries.
BE-Remote V41
please wait . . .

- 10 - HDMT 1290
5 Programming
5.1 Preparation
 • Test the software versions of the head-end station and the cassette and up-
date them if necessary.
The current software versions can be found on the website ” www.gss.de ” .
 • ConnectthetestreceivertotheHFoutputorthetestoutputofthehead-end
station.
 • Settheoutputchannel/outputfrequencyofthe cassette (page 15) and
adjust the TV test receiver to this channel / frequency.
 • Switch on the channel strip (modulator) if necessary ( page 16). For each
channelstrip,thereisastatusLED (2/ 5) which indicates if the channel
strip is switched on.
76432 51
 • Balancetheoutputlevelsofthechannelstrips“A” and “B” if the difference
in level is ≥ 1 dB (page 16).
5.2 Notes on level setting
In order to prevent interference within the head-end station and the cable sys-
tem,theoutputlevelofthecassettemustbedecreasedby8dBcomparedto
analogue cassettes.