GSS HDM 500 C Assembly Instructions Manual
Assembly Instructions
A
CLASS
KLASSE
Grundig SAT SystEms
Head-End Digital Modulator
HDM 500 C
A
KLASSE
CLASS
GSS
Grundig SAT Systems GmbH
Beuthener Straße 43
English
Assembly Instructions
D-90471 Nuremberg
Phone: +49 (0) 911 / 703 8877
Fax: +49 (0) 911 / 703 9210
E-mail: info@gss.tv
Internet: http://www.gss.tv
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Contents
1 Safety regulations .....................................................................................................3
2 General information .................................................................................................3
2.1 Packing contents .......................................................................................3
2.2 Meaning of the symbols used .....................................................................4
2.3 Technical data ..........................................................................................4
2.4 Description ...............................................................................................5
2.5 Software query .........................................................................................5
3 Assembly .................................................................................................................6
3.1 Installing the cassette .................................................................................6
3.2 EMC regulations .......................................................................................6
3.3 Connecting the cassette .............................................................................7
4 The control panel at a glance ....................................................................................8
4.1 Menu items ..............................................................................................8
4.2 Functions of the control panel buttons ..........................................................8
5 Programming ...........................................................................................................9
5.1 Preparation ..............................................................................................9
5.2
Notes on level setting ................................................................................9
5.3 Programming procedure ..........................................................................10
5.4 Programming the cassette ........................................................................12
Selecting the cassette ...............................................................................12
Selecting the channel strip ........................................................................13
Selecting channel / frequency setting ........................................................13
Setting the output channel ........................................................................14
Setting the output frequency .....................................................................15
Switching the modulator off or on .............................................................15
Adjusting the output levels of the channel strips ...........................................15
Setting the LNB oscillator frequency ...........................................................16
Setting the input symbol rate .....................................................................17
Setting the input frequency .......................................................................17
Testing the signal to noise ratio .................................................................18
Setting the QAM modulation ...................................................................19
Inverting the user signal ...........................................................................20
Testing stuffing ........................................................................................20
Setting a substitute signal in the case of an incorrect input signal .................21
Saving settings ........................................................................................21
6 Channel and frequency tables .................................................................................22
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1 Safety regulations
Caution
• Assembly, installation and servicing should be carried out by authorised
electricians.
• Switch off the operating voltage of the system before beginning with assembly
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 water and
dampness
- somewhere protected from direct sunlight
- not within the immediate vicinity of heat sources
- in an ambient temperature of -20 °C to +50 °C.
• 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 installation and
operation of antenna systems.
• Earth the
and VDE 0855 (earthed, equipotential bonding rail).
• For further information please read the assembly instructions for the head-
end station used.
SAT receiver in accordance with DIN EN 50083-1 / EN 60728-11
Take action to prevent static discharge when working on the device.
2 General information
2.1 Packing contents
1 cassette HDM 500 C
2 HF cables
1 CD (assembly instructions)
1 Brief assembly instructions
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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.
HF input
Frequency range: 950 … 2150 MHz
Level range: 60 dBµV … 80 dBµV
Input norm: QPSK
Symbol rate: 1 … 45 Msymb./s, SCPC/MCPC
HF output
Channels: S21 … C69
Frequency range: 42.0 MHz … 860.0 MHz
Output level: typ. 97 dBµV
Output impedance: 75 Ω
Connections
SAT inputs: 2 F sockets
HF output: 1 IEC socket
Connection strip (10-pin): for supply voltages and control circuits
RS 232 socket: serial interface for software update
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2.4 Description
The twin transmodulator cassette is a QPSK-converter, which converts all stations modulated according to DVB-S
lated cable signals.
The
cassette
standard and
QPSK
into two
QAM
has two digital SAT IF inputs and an HF output.
It is equipped with two channel strips (“A” and “B”). Each channel strip consists
of a digital tuner, a digital signal preparation unit and a modulator.
The prepared input signals reach the HF output collector of the head-end station
via the HF output socket. The common output level of the channel strips can be
set at the output collector of the head-end station.
Two LEDs indicate if the respective channel strip is switched on (LED illuminates)
or off, and also provide an indication of the signal quality based on their
colour. Additionally the quality of the data stream received is displayed
(“CN…”).
The output symbol rate is fixed to a value of 6900 kSymb/s. If the symbol rate
being transmitted exceeds this value change to a high-order modulation (e.g.
from 64 QAM to 256 QAM).
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 version of the control unit must be “V 37”
or higher. You can find the current operating software for the control unit and
the cassette, the software “BE-Flash”
and the current assembly instructions
website “www.gss.tv”.
The
cassette is
designed for use in the following head-end stations:
– STC 1200
– STC 316
– STR 19-8
-modu-
on the
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. “
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V 37
” appears.
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3 Assembly
A
CLASS
KLASSE
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
1 of 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 1 screws.
0°
CASSETTE
CASSETTE
CASSETTE
CASSETTE
CASSETTE
CASSETTE
CASSETTE
CASSETTE
CASSETTE
CASSETTE
CASSETTE
CASSETTE
MESSAUSGANG
ACHTUNG!
Vor dem Cassettenwechsel
unbedingt Netzstecker ziehen!
CAUTION!
Before changing cassettes remove
mains plug!
A
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 F terminals.
The attenuation of shielding of the connection lines must meet the require-
A
KLASSE
CLASS
ments for “Class A”.
When mounting the cassette in a STR 19-8 head-end station which is in-
stalled in a 19” cabinet, make sure the connections leading in and out for
the 19” cabinet are made using F terminals.
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• Insert the required number of F terminals in the openings provided in the
head-end station or in the 19" cabinet.
—> F terminals are not included in the scope of delivery.
3.3 Connecting the cassette
Tighten the nut on the F terminal until the teeth on the lock washer have penetrated the exterior coating and a good connection is made between the
housing and F terminal.
SAT input "B"
SAT input "A"
RS 232
Plug the SAT input cables into the SAT input sockets “
•
(channel strip “A”) and “
•
Connect the head-end station to the mains power supply.
SAT input B
” 1 (channel strip “B”).
SAT input A
” 2
3 “RS 232” socket
The operating software of the
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.tv”.
cassette
can be updated via the 9-Pin D-SUB
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