ASTRO U 960 User manual

Version 02-2022A

Contents
Operating Manual U 960 - Version 02-2022Apage 2
Contents
Before starting operation of the device..................................................................................... page 03
Symbols and conventions used................................................................................................ page 03
Proper use................................................................................................................................ page 04
Target group of this manual...................................................................................................... page 04
Device description.................................................................................................................... page 04
Important safety information..................................................................................................... page 05
Warranty conditions.................................................................................................................. page 07
Disposal.................................................................................................................................... page 07
Performance description........................................................................................................... page 08
Connecting modules..................................................................................................................page 09
Adjustingtheamplification..........................................................................................................page 09
Troubleshooting........................................................................................................................ page 12
Maintenance and repair............................................................................................................ page 12
Servicing................................................................................................................................... page 12
Technical data.......................................................................................................................... page 13

page 3
Before starting operation of the device
Operating Manual U 960 - Version 02-2022A
Before starting operation of the device
HINWEIS: Read this operating manual attentively! It contains important information about
installation, ambient conditions and maintenance of the device. Keep this operating manual for
future use and for handover in the event of a change of owner or operator. A PDF version of this
manual is available to download on the ASTRO website (there may be a more recent version).
The ASTRO company confirms that the information in this manual was correct at the time of
printing, but it reserves the right to make changes, without prior notice, to the specifications, the
operation of the device and the operating manual.
Symbols and conventions used
Symbols used in these instructions
Pictograms are visual symbols with specific meanings. You will encounter the following pictograms in
this installation and operating manual:
Warning about situations in which electrical voltage and non-observance of the instructions in this
manual pose a risk of fatal injuries.
Warning about various dangers to health, the environment and material.
Recycling symbol: indicates components or packaging materials which can be recycled (cardboard,
inserts, plastic film and bags). Used batteries must be disposed of at approved recycling points.
Batteries must be completely discharged before being disposed of.
This symbol indicates components which must not be disposed of with household rubbish.

Proper use
Operating Manual U 960 - Version 02-2022Apage 4
Proper use
The combining network U 901, resp. VZN 8 are used exclusively for distributing signals in SAT IF distri-
bution systems.
Modification of the devices or use for any other purpose is not permitted, and will immediately void any
guarantee provided by the manufacturer.
Target group of this manual
Installation and starting operation
The target group for installation and starting operation of the ASTRO headend technology are qualified
expertswho have training enablingthem to perform thework required in accordancewith EN 60728-11
and EN 62368-1. Unqualified persons are not allowed to install and start operation of the device.
Device configuration
Target group for the configuration of the ASTRO headend are persons who have received instructions
and have training enabling them to perform a configuration. Knowledge of EN 60728-11 and
EN 62368-1 is not necessary for configuration.
Device description
The delivery is comprised of the following parts:
U 960 combining network
Screws and screw nuts for mounting of the 19 inch housing
Operating Manual
U 960-4-24-T: Terminating resistors on all outputs except output 1 and on input 4 (pre-installed)
Front
[1] Power LED
[2] Test point
Back
[3] Netzteilbuchse
[4] Output
[5] Inputs
Figure 1: U 960 combining network - frontside
U 960
Version
without
testpoint
U 960
Version with
testpoint
1

page 5
Device description
Operating Manual U 960 - Version 02-2022A
Rear side
U 960-4-4-T:
[1] Output 1
[2] Input
[3] Output 2
[4] DOCSIS Input
[5] FM Input
[6] PAL Input
[7] QAM Input
[8] Output 1 - 4
Other types:
[1] Inputs
[2] Outputs
Bild 1: U 960 combining network - rear side
The combining networks U 960 features a CE marking. This confirms that the products comply with the
relevant EC directives and adhere to the requirements specified therein.
345
1
1
1
12
2
2
2
678
U 960-4-4-TP
U 960-4-24
U 960-18-4-TP
U 960-32-TP

Important safety information
Operating Manual U 960 - Version 02-2022Apage 6
Important safety information
To avoid any potential risks to the greatest extent possible, you must adhere to the following safety
information:
ACHTUNG: Failure to observe this safety information may result in personal injury due
to electrical and thermal dangers!
Proper use
Only use the device at the approved operating sites and in the ambient conditions allowed (as
described in the following), and only for the purpose described in the section “Proper use”.
Before starting operation of the device
HINWEIS: Read this operating manual attentively! It contains important information
about installation, ambient conditions and maintenance of the device. Keep this operating
manual for future use and for handover in the event of a change of owner or operator. A PDF
version of this manual is available to download on the ASTRO website (there may be a more
recent version).
Check the packaging and the device for transport damage immediately. Do not start operation of
a device that has been damaged.
Transporting the device by the power cable may damage the mains cable or the strain relief, and
is therefore not permitted.
Installation and operation
The device may only be installed and operated by qualified persons (in accordance with
EN 62368-1) or by persons who have been instructed by qualified persons. Maintenance work
may only be carried out by qualified service personnel.
An installation site must be provided that prevents children from playing with the device and its
connections.
The electrical connection conditions must correspond to the specifications on the device type
plate.
Toavoid damage due to overheating,thedevice may only beinstalledon horizontal surfaces. The
deviceis,where possible, intended for operationinmetallicallyconductive19”rackswith sufficient
air convection to ensure that the maximum permissible ambient temperature for the device is
adhered to. The installation surface should be non-flammable.
The ambient temperatures specified in the technical data must be complied with, even when
climatic conditions change (e.g. due to sunlight). If the device overheats, the insulation used to
isolate the mains voltage may be damaged.
The device and its cable may only be operated away from radiant heat and other sources of heat.
To avoid trapped heat, ensure there is good ventilation on all sides (minimum interval of 20 cm to
otherobjects). Installing the device inaniche or covering theventilationopenings is not permitted.
No objects may be placed on the device.
The subscriber network must be earthed in accordance with EN 60728-11, and must remain
earthed even when the device is removed. Furthermore, the earth connection on the device can
be used. Devices within hand’s reach must be integrated into the potential equalisation together.
Operating the device without an earth conductor, without earthing the device or without using
device potential equalisation is not permitted.

page 7
Important safety information
Operating Manual U 960 - Version 02-2022A
The device does not feature protection against water and may therefore only be operated and
connected in dry rooms. It must not be exposed to splash water or drip water, condensation or
similar effects of water, as this may impair the isolation from the mains voltage.
The electrical system supplying current to the device, e.g. a house installation, must incorporate
safety devices against excessive current, earth leakages and short-circuiting in accordance with
EN 62368-1.
All adhere to all applicable national safety regulations and standards.
Do not install the unit in locations with excessive dust formation, as this may impair the isolation
from the mains voltage.
Excess mechanical loads (e.g. falling, impacts, vibrations) may damage the insulation used to
provide protection from mains voltage.
Highexcesscurrents(lightning strike, surges in the powerutilitygrid)maydamage insulation used
to provide protection from mains voltage.
If there is no information about intended use (e.g. operating site, ambient conditions), or the opera-
ting manual does not include the corresponding information, then you must consult the manu-
facturer of this device to ensure that the device may be installed. If you do not receive any
information on this from the manufacturer, do not start operating the device.
Disconnect devices with damaged power cables from the mains power (unplug the power supply
plug).
Electromagnetic compatibility (EMC)
Inorder toavoidmalfunctionsfrom occurringwhenoperatingradioandtelecommunicationsequipment,
as well as other operating units or broadcasting services, the following points must be observed:
Before installation, the device must be checked for mechanical damage. Damaged or bent covers
or housings may not be used.
During operation, the device must always be covered by the components provided for this
purpose. Operation with an opened cover is not permitted.
Maintenance
Read carefully: EN 60728-11 – Part 1, Safety requirements / No service tasks during electrical
storms!
Repair
Repairs may only be performed by the manufacturer. Improperly performed repairs may result in
considerable dangers for the user.
Do not start operating devices with a damaged power cable, and instead have them repaired by
the manufacturer.
If malfunctions occur, the device must be disconnected from the mains and authorised experts
must be consulted. The device may need to be sent to the manufacturer.

Warranty conditions
Operating Manual U 960 - Version 02-2022Apage 8
General information
Store or use the device in a safe location, well out of reach of small children. It may contain small
parts that can be swallowed or inhaled. Dispose of any small parts that are not needed.
Plastic bags may have been used for packaging the device. Keep these plastic bags away from
babies and children in order to avoid any danger of suffocation. Plastic bags are not toys.
Do not store the device near chemicals or in places in which any leakage of chemicals may occur.
Organic solvents or fluids in particular may cause the housing and/or cables to melt or disinte-
grate, presenting a danger of fire or electric shock. They may also cause device malfunctions.
Do not connect the mains adapter provided to any other products.
Warranty conditions
The general terms and conditions of ASTRO Strobel GmbH apply. You will find these in the current
catalogue or on the Internet under “www.astro-kom.de”.
Disposal
All of our packaging material (cardboard boxes, inserts, plastic film and bags) is completely recyclable.
This device must be disposed of as electronic waste at designated collection facilities in accordance
with the current disposal regulations valid in your district/state/country once the device is no longer in
use.
ASTROStrobel is amember of the Elektrosystem solution forthe disposal of packagingmaterials. Our
contract number is 80395.
Performance description
The U 960 is a passive combining network. The devices are used for extension of existing facilities by
connecting additional channels (e. g. a V 16 base unit).
Some types feature a test point for checking the output signal, attenuated by 20 dB.
Connecting the module
Observe all instructions about installation and mains connection described in the section “Important
safety information”!
Ensure that the mains voltage, signal sources etc. are properly connected to the device using the corre-
sponding connections. The local mains voltage must be the same as the supply voltage required to
operate the device (see section “Technical data”“).
Connect input and output jacks of the device via F-connectors of the coax cable.
HINWEIS: During operation of the U 960 all unused inputs of the device must be with a 75
Ohm terminating resistor.

page 9
Troubleshooting
Operating Manual U 960 - Version 02-2022A
Troubleshooting
If the device is not functioning correctly, please perform the following checks:
Check whether the device has been connected to the required mains voltage (230 V~, 50 Hz).
Check whether the signal cable is connected correctly, and that there are no breaks or short
circuits in the connectors.
If the problem cannot be resolved, please contact the ASTRO customer service.
Maintenance and repair
ACHTUNG: The following safety information must be observed when performing main-
tenance and repair work. Failure to observe this safety information may result in personal
injury due to electrical and thermal dangers!
Theoperating display onlyshows whether the DCcurrent, which suppliesthe device components,
has been disconnected from the mains voltage. If the operating display (for the power supply unit
or the device) does not light up, this does not mean that the device has been fully disconnected
from the mains voltage. There may still be voltages in the device that are dangerous to touch. You
may therefore not open the device.
Read carefully: EN 60728 - Part 1 Safety requirements: No service work during thunderstorms.
A defective device may only be repaired by the manufacturer to ensure that components with the
original specification are used (e.g. power cable, fuse). Improperly performed repairs may result
in considerable dangers for the user or installer. If malfunctions occur, the device must therefore
be disconnected from the mains and authorised experts must be consulted. The device may need
to be sent to the manufacturer.

Technical data
Operating Manual U 960 - Version 02-2022A
page 10
Technical data
Type U 960
Order number 380 195
EAN-Code 4026187680152
Impedance [Ω] 75
Frequency range [MHz] 5 - 1000
Screening [dB] > 100
Connectors [dB] F-jacks
can be assembled with:
2-way splitter
Through loss [dB] 3,8 ± 0,5
Isolation [dB] > 24
Return loss [dB] > 21
3-way splitter
Through loss [dB] 6,5 ± 0,5
Isolation [dB] > 24
Return loss [dB] > 22
4-way splitter
Through loss [dB] 7,5 ± 0,5
Isolation [dB] > 23
Return loss [dB] > 23
8-way splitter
Through loss [dB] 11,2 ± 0,5
Isolation [dB] > 29
Return loss [dB] > 21
Common data
Housing 19'', 1 HE
Ambient temperature [°C] 0…+50

Technical data
page 11
Operating Manual U 960 - Version 02-2022A

Operating Manual U 960 - Version 02-2022A 82 576 400 01DE
© 2022 ASTRO
Subject to change.
Change management and copyright:
This document contains information protected by copyright. It is prohibited to
photocopy, duplicate, translate or store on data storage media this document,
either partially or in full, without prior agreement of the ASTRO company.
These operating instructions have been written by:
ASTRO Strobel Kommunikationssysteme GmbH
Olefant 3, D-51427 Bergisch Gladbach (Bensberg) Germany
Phone: [phone], Fax: [phone]
eMail: [email protected]
Internet: www.astro-kom.de
All the information contained in this document has been checked in good faith.
The ASTRO company cannot be held liable for any damage or injury arising in
connection with the use of these operating instructions.