GSS STC 160 User manual

Grundig SAT SystEms
GSS
Grundig SAT Systems GmbH
Beuthener Strasse 43
D-90471 Nuremberg
Phone: +49 (0) 911 / 703 8877
Fax: +49 (0) 911 / 703 9210
Email: [email protected]v
Internet: www.gss.tv
Assembly Instructions
English
Notes on the Assembly Instructions.
As well as this supplementary Assembly
Instructions, the Assembly Instructions for the
STC 160 apply.
STC 160 Head-End Station
FM Amplifier
HRM 225

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Contents
1 Safety regulations.......................................................................................................3
2 General information ...................................................................................................3
2.1 Scope of delivery .........................................................................................3
2.2 Meaning of the symbols used.........................................................................3
2.3 Technical data .............................................................................................4
2.4 Description ..................................................................................................4
3 Installation .................................................................................................................5
3.1 Installing the FM amplifier..............................................................................5
3.2 Connecting the FM amplifier..........................................................................6
4 Setting the FM amplifier ..............................................................................................7
5 Final procedures.........................................................................................................8

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1 Safety regulations
Please read the safety regulations listed in the assembly instructions for the
STC 160 head-end station which pertain to this module.
When working on the modules, please take measures to protect
against ESD!
2 General information
2.1 Scope of delivery
1 FM amplifier HRM 225
1 Attenuator (10 dB)
1 HF connection cables
1 CD (assembly instructions)
1 Brief assembly instructions
2.2 Meaning of the symbols used
Important note
•  Performingworks
—> General note

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2.3 Technical data
The requirements of the following EU directives are met:
73/23/EEC, 89/336/EEC
The product fulfils the guidelines and standards for CE labelling.
HF input:
Frequency range: 87. 5 … 108.0 MHz
Input level: 45 … 65 dBμV
Input impedance: 75 Ω
HF output:
Output frequency: 87.5 … 108.0 MHz
FM selection: > 60 dB
Output level: max. 100 dBμV
Output impedance: 75 Ω
Gain: 17 … 37 dB
Noise level: 6 … 9 dB
Traps: Quantity: 6
Tuning range: 87.5 … 108.0 MHz
Attenuation: typ. 10 dB
Connections:
HF input: 1IECsocket(female)
HF output: 1IECsocket(female)
Connection strip (20-pin): For supply voltages and control circuits
2.4 Description
FMsignalscanbesuppliedtothecablenetworkovertheFMamplifierHRM225.
ThisinvolvessendingtheFMsignalsoveranIECsockettotheFMamplifier.To
eliminate interference, up to 6 different input frequencies can be lowered with
tuneable traps. The amplified, selected HF signals are supplied to the cable
networkovertheHFoutputoftheFMamplifier.
If the FM amplifier is not detected by the head-end, station you can update the
head-end station’s operating software over the head-end station’s 9-pin Sub-D
socket,byusingaPCornotebookandthe“BE-Flash” software.

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Youcanfindthecurrentoperatingsoftwareandthesoftware“BE-Flash” on the
website“www.gss.tv”.
The FM amplifier HRM 225 is designed exclusively for use in the STC 160 head-
end station.
3 Installation
Caution
– 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 module, switch off the head-end station or
unplug the power cable from the mains power socket.
Take measures to protect against ESD!
3.1 Installing the FM amplifier
Caution
– When installing a module, make sure that it is inserted in one of the long,
numbered grooves in front of the contact strip on the board at the rear wall
of the housing.
– The shorter, non-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 for the STC 160.
•Openthelockingdevice1in the direction of the arrow (fig. 1).
•InserttheFMamplifieringroovesAand Bof an open slot (fig. 2) and
gentlyslideitintothehead-endstationuntilitmakescontactwiththeboard
on the rear wall.

Fig. 1

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•Afterinstallingthemoduleclosethelockingdevice1in the direction of the
arrow (fig. 2).
3.2 Connecting the FM amplifier
•AftersettingtheFMamplifier(chap.4)connectitsoutputCto one of the
inputs Gof the quad output collector using the attenuator Eand the IEC /
F cable supplied.
•ConnectinputDof the FM amplifier to one of the preinstalled F terminals in
the rear wall via the cable inlet Fusing an HF cable made on-site (length
approx. 80 cm).



Fig. 2
!
#
$
"
Fig. 3

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After installing the head-end station, retrofitting accessories or installing
modules it is necessary to tighten all cable connections, F terminals and
cover screws in order to maintain compliance with current EMC regulations
and to ensure a reliable operation.
4 Setting the FM amplifier
In order to prevent interference, too high signal levels, e. g. of local transmitters,
can be reduced by absorption circuits.
•Switchonthehead-endstation.
—> The display shows the following indication for the FM amplifier.
If the module is not indicated update the software of the control panel.
•ConnectaspectrumanalysertotheoutputCof the FM amplifier.
•Setlevelregulator1to the mechanical centre.
•Ifnecessarytunetheabsorptioncircuitgroups2and 3to the frequencies
to be lowered.
—> You can lower 3 interfering frequencies each with the absorption circuit
groups 2and 3. If the adjustment range of an absorption circuit, for
example from group 2is inadequate, you can lower the frequencies
even further with an absorption circuit that is tuned to the same frequen cy
from group 3.
Box 187.5 - 108
UKW
! 
Fig. 4

5 Final procedures
•ConnectoutputCof the FM amplifier to one of the inputs Gof the quad out-
put collector using the attenuator Eand the IEC / F cable supplied. (fig. 3).
•Set the output level required for the cable system with level regulator 1,
(Fig. 4).
•Mount the base plate and the front cover (see STC 160 assembly instruc-
tions).
Alterations reserved. Technical data E. & O.E. © by GSS GmbH 11012008