FOXTEL Management Pty Ltd
FD-T-E-2325 - Transparent Digital
Transmodulator (TDT) Network Specification
FD/T/E/2325
Last Updated: 11/07/2014 3:26:00 PM
ISSUE 1 Revision 26
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TDT Network Specification
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Issue Issue Date
#
0
1
Revision
Revision
Date
1
12/05/06
Comments
Prepared By
Authorised By
Document created from Peter Sneesby
Satellite Installation
Manual
Paul Trimble
Peter Sneesby
2
16/11/05
Amendments after
review
(Sneesby/Circosta)
Cliff Hobson
3
22/11/05
Amendments &
rearrangement of
sections
Peter Sneesby
4
21/02/06
Additional information
inserted after review
(Circosta)
Cliff Hobson
Paul Trimble
5
09/05/06
Added echo level at
wallplate information;
Updated T5V value in
Table 10
Cliff Hobson
Paul Trimble
Issued for release
Cliff Hobson
Paul Trimble
0
1
21/09/06
Several amendments
Cliff Hobson
from Steve Circosta
relating to high port to
port isolations. Added
section on NIP Boxes.
Replaced Figures 6 and
7
Paul Trimble
1
2
19/06/08
Added Transponder 1
to the Channel Plan.
Removed 11.3 LO
column.
Cliff Hobson
Paul Trimble
1
3
15/07/08
Updated Reference Std Cliff Hobson
AS/NZS 1367:2007
Paul Trimble
FD-T-E-2325 - Transparent Digital Transmodulator (TDT) Network Specification
Issue: 1 Version: 26
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TDT Network Specification
Issue Issue Date
#
1
Revision
4
Revision
Date
Comments
01/09/2008 Added combined
Channel Plan for C1
and D3 satellites.
(Table 11)
Prepared By
Authorised By
Cliff Hobson
Steve Circosta
Cliff Hobson
Steve Circosta
Cliff Hobson
Steve Circosta
Added number of DVBS and DVB-S2 modules
in Sect 3.1
1
5
30/10/2008 Removed combined
Channel Plan for C1
and D3 satellites.
(Table 11)
Changed Content
details for TDT Modules
18 to 24 in Table 12.
6
24/09/2009 Updated Table 12 with
current transponder
listings.
Added 256 QAM level
information in all tables
in Section 5.4.1
7
28/09/2009 Correction to D3 T9
polarity in Table 12
Cliff Hobson
Steve Circosta
8
28/10/2009 Correction to QAM
frequencies for Ch 3133 in Table 12
Cliff Hobson
Steve Circosta
9
03/11/2009
Cliff Hobson
Steve Circosta
10
11/11/09
Replace Section 6.2
with content from MDU
Manual
Cliff Hobson
Steve Circosta
11
04/03/10
Amended Channel Plan Cliff Hobson
(Table 12)
Steve Circosta
12
12/04/10
Amended Work Specific Cliff Hobson
Test Equipment Table
(Table 13)
Steve Circosta
13
24/05/10
Changed C1T2 to
D3T11 in Transponder
Table (Table 12)
Cliff Hobson
Steve Circosta
14
25/05/10
Amended DSAM Model Cliff Hobson
Numbers in Work
Specific Test
Equipment Table
(Table 13)
Steve Circosta
Amended Bit Error
Rates and Notes for
Table 6
FD-T-E-2325 - Transparent Digital Transmodulator (TDT) Network Specification
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TDT Network Specification
Issue Issue Date
#
1
Revision
15
Revision
Date
17/06/10
Comments
Prepared By
Removed references to Cliff Hobson
cable manufacturers in
Appendix C.
Authorised By
Steve Circosta
Amended QPSK level in
Table 8.
16
18/04/11
Amended Symbol Rate
and FEC for D3T22 in
Table 12
Cliff Hobson
Steve Circosta
17
26/05/11
Updated version year
for AS/ACIF S009 and
AS/NZS 1367
Cliff Hobson
Steve Circosta
18
02/08/11
Removed 3
photographs of cable
connectors with
weatherseals and
replaced with single
photo showing all 3
(Figure 14)
Cliff Hobson
Steve Circosta
19
15/08/11
Added D3T8; D3T5 and Cliff Hobson
D3T6 in transponder
allocation plan (Table
12)
Steve Circosta
20
22/11/11
Updated Section 0 –
System and Wallplate
Specifications
Cliff Hobson
Steve Circosta
Cliff Hobson
Steve Circosta
Updated Section 6.1 to
include TDT and NTD
testing.
21
08/12/11
Updated Figure 5 and
subsequent
paragraphs.
Deleted Fig 5 and
replaced with two
individual schematics.
Table 12 – D3 T6
changed to T7
22
08/02/12
Updated Figure 7
(LNBF type) and cross
referencing in Sect 0
Cliff Hobson
Steve Circosta
23
18/07/12
Added details for Fibre Cliff Hobson
System earthing (Sect
4.4.12)
Amended PSTN details
in Sect 5.3.1
Removed
Updated Installation
Certification Testing
(Sect 6.1)
Updated dish alignment
Steve Circosta
FD-T-E-2325 - Transparent Digital Transmodulator (TDT) Network Specification
Issue: 1 Version: 26
Printed: 11/07/14
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TDT Network Specification
Issue Issue Date
#
Revision
Revision
Date
Comments
Prepared By
Authorised By
instructions in Sect 7.1
23
10/09/12
Update Sect 4.4.13
Connectors
Steve Circosta
John Mitsios
24
11/10/12
Updates to earthing
sect4.4.12
Steve Circosta
John Mitsios
Steve Circosta
Steve Circosta
Steve Circosta
Steve Circosta
ONT & Launch Levels
added to sect 5.1
Changes made to sect
5.2 isolators
25
26/11/13
Updates to
2.1.1 Dish selection
2.2 Mounts
Figure 6 Spaun TDT
5.2 Isolators
5.3.1 removal of PSTN
Table 6 Wallplate digital
performance
Table 7 wallplate signal
level
Table 11 Regional
azimuth, elevation and
skew information Table
Removed Windload
conditions previous
section 7.3
Table 13 Work specific
test equipment
Appendix B drawing
symbols
26
09/07/14
TDT dish sizes and
zone map added
section 2.1.1
FD-T-E-2325 - Transparent Digital Transmodulator (TDT) Network Specification
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Distribution List
Name
Position
Company
Document Approval
Name:
Paul Trimble
Head of Managed Consumer Products
(26/11/13)
FD-T-E-2325 - Transparent Digital Transmodulator (TDT) Network Specification
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Table of Contents
1.
INTRODUCTION .............................................................................................................................. 9
1.1.
1.2.
2.
PURPOSE ................................................................................................................................... 9
SCOPE ....................................................................................................................................... 9
SIGNAL INPUT .............................................................................................................................. 10
2.1.
OUTDOOR UNIT (ODU) – DISH AND LNB ................................................................................... 10
2.1.1.
Dish Selection ................................................................................................................. 10
2.1.2.
Dish Alignment ................................................................................................................ 12
2.2.
MOUNTS ................................................................................................................................... 12
2.2.1.
Mount Selection .............................................................................................................. 12
2.2.2.
Location of Mount ........................................................................................................... 17
2.2.3.
Mount and Dish Placement............................................................................................. 17
3.
HEADEND ...................................................................................................................................... 18
3.1.
3.2.
4.
HEADEND ................................................................................................................................. 18
HEADEND REMOTE MONITORING ............................................................................................... 19
NETWORK ..................................................................................................................................... 23
4.1.
GENERAL NETWORK DESIGN INSTRUCTIONS .............................................................................. 23
4.2.
NETWORK DESIGN TOPOLOGIES ................................................................................................ 23
4.2.1.
Star Design Topology ..................................................................................................... 24
4.2.2.
Tree and Branch Design Topology ................................................................................. 25
4.3.
DE-RATING AMPLIFIER OUTPUT ................................................................................................. 25
4.3.1.
Second and Third Products ............................................................................................ 25
4.3.2.
Reduction of amplifier output levels ................................................................................ 25
4.3.3.
Output reduction in cascade amplifiers .......................................................................... 26
4.4.
CABLE-BASED DISTRIBUTION SYSTEMS ...................................................................................... 26
4.4.1.
Cable Selection ............................................................................................................... 26
4.4.2.
Cable Types .................................................................................................................... 27
4.4.3.
Cable Types (Fibre-based system) ................................................................................ 27
4.4.4.
Extending Cable Reach .................................................................................................. 27
4.4.4.1.
4.4.4.2.
4.4.5.
4.4.6.
4.4.7.
4.4.8.
4.4.9.
4.4.10.
4.4.11.
4.4.12.
4.4.13.
Back feed ................................................................................................................................. 27
Forward Feed ........................................................................................................................... 28
Active Equipment ............................................................................................................ 28
Location of Active Equipment ......................................................................................... 29
Subscription Broadcast Provider Boundary Issues ........................................................ 29
Design Optimisation ........................................................................................................ 29
Cable Segregation .......................................................................................................... 29
Identification of Cables ................................................................................................... 30
Earthing of Network ........................................................................................................ 30
Earthing of Fibre Systems .............................................................................................. 30
Connectors...................................................................................................................... 30
4.4.13.1.1.
4.4.13.1.2.
4.4.14.
4.4.15.
4.4.16.
4.4.17.
4.4.18.
4.4.19.
5.
Upgrading Satellite single polarity or non IQ ready Systems to TDT Technology ............ 30
Weather Seals .................................................................................................................. 30
Power Block .................................................................................................................... 31
Isolating Line Power Supplies......................................................................................... 31
Optical Transmitter / Receiver ........................................................................................ 31
Distribution amplifiers ..................................................................................................... 31
Line extenders ................................................................................................................ 32
Reverse Path .................................................................................................................. 32
WALL CONNECTIONS .................................................................................................................. 33
5.1.
NETWORK INTERFACE POINT, W ALL BOX OR OPTICAL NETWORK TERMINAL ................................ 33
5.1.1.
RF Levels at ONT, NIP or Wall Box ............................................................................... 33
FD-T-E-2325 - Transparent Digital Transmodulator (TDT) Network Specification
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5.2.
ISOLATORS ............................................................................................................................... 35
5.3.
W ALLPLATE .............................................................................................................................. 36
5.3.1.
Ethernet connection ........................................................................................................ 36
5.4.
SYSTEM AND W ALLPLATE SPECIFICATIONS FOR INSTALLATIONS .................................................. 37
5.4.1.
Echo Level at Wallplate .................................................................................................. 39
6.
COMMISSIONING .......................................................................................................................... 40
6.1.
INSTALLATION CERTIFICATION TESTING ...................................................................................... 40
6.1.1.
LNB Tests ....................................................................................................................... 40
6.1.2.
Amplifier Tests ................................................................................................................ 40
6.1.3.
TDT Headend Tests ....................................................................................................... 40
6.1.4.
NTD Tests ....................................................................................................................... 40
6.2.
QUALITY CONTROL.................................................................................................................... 40
7.
TECHNICAL REFERENCE INFORMATION ................................................................................. 42
7.1.
7.2.
7.3.
ALIGNING A SATELLITE DISH ...................................................................................................... 42
SATELLITE TRANSPONDER LISTINGS .......................................................................................... 44
TEST EQUIPMENT...................................................................................................................... 45
APPENDIX A.
GLOSSARY ................................................................................................................ 47
APPENDIX B.
DRAWING SYMBOLS ............................................................................................... 53
APPENDIX C.
TECHNICAL SPECIFICATION .................................................................................. 54
C.1. PASSIVE EQUIPMENT................................................................................................................. 54
C.2. ACTIVE EQUIPMENT................................................................................................................... 57
C.2.1.
Amplifier Maximum Output Test Method ........................................................................ 58
C.2.1.1.
Digital Service Rating ............................................................................................................... 58
APPENDIX D.
REFERENCE STANDARDS ...................................................................................... 60
APPENDIX E.
STU INSTALLATION ................................................................................................. 61
E.1.
INSTALLING STU IN THE HOME................................................................................................... 61
FD-T-E-2325 - Transparent Digital Transmodulator (TDT) Network Specification
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1.
Introduction
1.1.
Purpose
The purpose of this document is to:
Specify the requirements for designing, installing and commissioning TDT installations
which satisfy FOXTEL’s requirements.
Provide some key information necessary to appreciate the complexities of TDT
distribution installations.
1.2.
Scope
For any FOXTEL TDT installation, the signal shall be delivered via a high-availability satellite
dish, processed by the TDT system (mounted within the headend facility), distributed
throughout the complex by a network (cable or fibre-based) and finally delivered to FOXTEL
subscribers at wallplates in customer homes. This document is organised in a way which
mirrors the signal path throughout the network, commencing with signal input from the
satellite dish.
From time to time, the requirements within this document will change as the FOXTEL
business develops. This could be due to introduction of new technology or identification of
field difficulties, which require clearer detail to ensure the quality expectations of the business
are met.
Specifically, this document does NOT address FOXTEL business processes for TDT
installation and commissioning. Nor does it address issues such as eligibility of sites for TDT
deployment – these matters are the responsibility of FOXTEL Customer Installations Group.
National Broadband Network (NBN)
The NBN will not be carrying FOXTEL and O.B (FTA) RF audio-video services on the NBN
backbone.
It is recommended that two backbones are installed to cater for all services:
1.
Backbone for FOXTEL and O.B Services
2.
Backbone for NBN services.
Note: FOXTEL specifies in this document that 2 x Cat6 cables should be installed adjacent
to the FOXTEL wallplate. These cables can be used for an ethernet connection to
FOXTEL or O.B and can also be used to deliver NBN or other services.
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2.
Signal Input
2.1.
Outdoor Unit (ODU) – Dish and LNB
The overall availability of FOXTEL services provided via TDT is capped by the availability
obtained from the satellite dish input. FOXTEL’s requirement is for >99.95% availability at the
satellite dish.
This section provides guidance on selection and installation of the satellite dish and LNB.
2.1.1.
Dish Selection
The step of selecting the correct dish performance is to ensure that it will provide appropriate
increase in margin of Bit Error Rate, Modulation Error Ratio (in band noise ratio) and Digital
Channel Power performance to ensure it will cater for rain fade margin and distribution
system degradation. Figure 1 provides information on the Six (6) satellite coverage zones and
the appropriate size dish required for an installation at this location.
Figure 1 – Optus C1 FOXTEL Satellite Coverage Zone Map
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Table 1 – Dish Location Zone to Size Selection Matrix
MDU
≤ 3 Stories
Zone 1
Zone 2
Zone 3
Zone 4
Zone 5
Zone 6
Note:
65cm
85cm
80cm
85cm
85cm
1.2m
MDU
≥ 3 Stories
& MRE
90cm
90cm
90cm
1.2m
1.2m
1.5m
TDT
Commercial
(hotel –MDU)
1.2m
1.2m
1.2m
1.2m
1.2m
1.5m
90cm
90cm
90cm
1.2m
1.2m
1.5m
Commercial
(single
Dwelling)
60cm
85cm
80cm
85cm
80cm
1.2m
The minimum dish size for TDT installations is 1.2m for zones 1 to 5 and 1.5m in zone 6.
FD-T-E-2325 - Transparent Digital Transmodulator (TDT) Network Specification
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2.1.2.
Dish Alignment
There are two steps to aligning a satellite dish for optimum performance, Azimuth elevation
setup and cross-polarisation. A meter must be used for all dish alignment (see Installer
Product List for current models). FOXTEL has selected these new meters to make the dish
alignment process more accurate and efficient. See Section 6.1 for step by step installation
procedures.
2.2.
Mounts
This section describes how to select a mount and where to install it.
2.2.1.
Note:
No mount is to exceed its maximum rated dish size or wind rating specifications. All mounts
must be installed in accordance with the manufacturer’s instructions.
Note:
For further information on mount specifications and details, refer to the Domestic Installation
Manual – (Satellite Installation Manual – Domestic (SIM-DOM)) or the Manufacturer’s
instructions provided with the mount, or refer to the Manufacturer’s website.
Mount Selection
When selecting a mount, it needs to be suitable for the size of the dish and the prevailing
wind conditions in the area where it will be used. Australia can be divided into four regions for
prevailing wind conditions:
Region A: Normal
Region B: Intermediate
Region C: Tropical cyclones
Region D: Severe tropical cyclones
Use Table 2 below and the map in Figure 2 to select the appropriate mount for the location.
For further clarification on the suitability of the mount required for your location in all regions,
contact the mount manufacturer.
Refer to the manufacturer’s website for further information relating to mount selection to suit
the dish size used in your region.
Jonsa Australia:
http://www.jonsa.com.au/
Hills Antenna & TV Systems
http://www.hillsantenna.com.au/
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Mount Wind Rating
Mounting hardware for the installation of satellite dishes on domestic dwellings must have a
wind rating that complies with the requirements of AS 4055-2012 Wind loads for housing. In
particular the Wind Rating of the mount together with the dish must comply with or exceed
that set out in Table 2.2 of AS 4055-2012 for the local Wind Region and site conditions. The
Wind Rating of a mount in combination with the dish is specified in the mount manufacturer’s
installation instructions.
As a guide, the Wind Ratings in the corresponding Wind Regions as listed in Table 2 below
are considered to be suitable for satellite dish mounting hardware unless the site is on a hill
or slope.
These Wind Ratings apply to all sites within a Wind Region except where the house or MDU
is located on the mid or top third of a hill, ridge or escarpment of average slope greater than
1:20 (3°).
Figure 2 – Wind Regions
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Table 2 – W1 Mount Selection – Wind Rating Chart
Where no Wind Rating is shown in Table 2, wind conditions are likely to be extreme, and expert
advice should be sought from the local building authority.
Higher Wind Ratings are applicable to hill tops and slopes
For sites located in the zones marked M, T and O in the diagrams below, it may be necessary
to use a higher wind rating.
Figure 3 – Hill Zones
Estimate the height and slope of the hill and the relative position (Hill Zone) of the site to
determine the Exposure Classification (T number) using Figure 3 above and Table 3 below.
Then use the Hill Index from Table 2 and the Exposure Classification from Table 3 to
determine the Rating Increment from Table 4 below.
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Add the Rating Increment to the Minimum Wind Rating from Table 2 to find the Wind Rating
applicable to the site.
Table 3 – Exposure Classification
Exposure
Classification
Hill
Zone M
Average
Hill Slope
Hill Zone
T
H
less than
10m
H
between
10 & 30 m
H
more than
30m
Hill
Zone
O
1:20 to 1:10
T0
T1
T1
T1
T0
1:10 to 1:7.5
T1
T1
T2
T2
T0
1:7.5 to 1:5
T1
T2
T2
T3
T1
1:5 to 1:3
T2
T2
T3
T4
T2
>1:3
T2
T3
T4
T5
T3
Table 4 – Rating Increment
Rating
Increment
Exposure Classification
Hill Index
T0
T1
T2
T3
T4
T5
H1
0
0
+1
+1
+1
+2
H2
0
0
+1
+1
+2
+2
H3
0
0
+1
+1
+2
-
H4
0
0
+1
+1
-
-
H5
0
0
+1
-
-
-
H6
0
0
-
-
-
-
H7
0
+1
+1
+1
+2
+3
H8
0
+1
+1
+2
+2
-
H9
0
+1
+1
+2
-
-
H10
0
+1
+1
-
-
-
H11
0
+1
-
-
-
-
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For example, a 4 storey MDU located half-way up a 50 metre hill with a slope of 1:10 in
Region B has a minimum Wind Rating of N4 and a Hill Index of H8 (Table 2). It is situated in
Zone M according to Figure 3. Its Exposure Classification according to Table 3 is T1 (take the
worst case for the slope). By Table 4, the Rating Increment is +1. Therefore the Wind Rating
for the site is N4 +1 = N5.
Where no Rating Increment is shown in Table 4, wind conditions are likely to be extreme, and
expert advice should be sought from the local building authority.
Note:
*Refer to manufacturer for appropriate mount.
Refer to the following Australian Standards and Codes.
Wind class and wind speed have been upgraded from the
specified region categories listed in the standards.
AS/NZS1170.0:2002 Structural design actions Part 0: General Principles
AS/NZS1170.1:2002 Structural design actions Part 1: Permanent imposed and other actions
AS/NZS1170.2:2011 Structural design actions Part 2: Wind actions
AS4055-2012 Wind loads for housing
AS4100-1998 Steel structures
AS1720.1-2010 Timber Structures Part 1: Design methods
AS1684-2010 Residential timber framed construction
AS3700-2001 Masonry Structures
Note:
No allowance has been made in structural design to comply with the provisions of
AS/NZS1170.3:2003 Snow and ice actions or AS/NZS1170.3:2007 Earth quake actions
Important Note: For installations in the Northern Territory where different regulations apply, refer to the Building
Notes on Satellite Dishes: http://www.lands.nt.gov.au/__data/assets/pdf_file/0003/8193/45.pdf
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2.2.2.
Location of Mount
For the FOXTEL satellite installation to work correctly there must be a clear Line of Sight to
the FOXTEL satellite. Locations with a limited Line of Sight can result in intermittent or
complete loss of signal. There should be no obstructions, for example, trees or parts of
buildings in the signal path. An inclinometer should be used to survey the signal path to
ensure a clear Line of Sight. If there is any uncertainty as to whether the Line of Sight will
remain clear in the future (due to vegetation growth), use a different mount location.
2.2.3.
Mount and Dish Placement
Placement of the mount for the dish on a building is aesthetically important and an essential
part of the design for all existing buildings. Figure 4 provides guidance on the preferred mount
and dish location where number 1 is the most preferred location (towards back of building)
and 4 (front/side of building) is the least preferred option.
Figure 4 – Preferred Dish Locations
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3.
Headend
3.1.
Headend
The headend should be installed in the main hub room to provide for the QPSK to QAM
conversion for FOXTEL services, as well as the distribution of Open Broadcast services and
any in-house services.
Typically the headend can be launched at 44dBmV. (Check manufacturer’s specification.)
A typical TDT headend installation is shown in Figure 5.
Figure 5 – Typical TDT Headend Installation
All systems shall have a minimum of 32 DVB-S2 capable TDT modules to cater for both
Optus C1 and D3 satellites.Refer to the Channel Plan (Table 12) for output frequencies that
must be catered for.
TDT and headend equipment shall be installed in a controlled environment room at all
headend locations.
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3.2.
Headend Remote Monitoring
A Broadband connection is required in the headend room to cater for remote monitoring and
remote access programming of the headend. As a minimum, for each TDT module, the
following functions are required to operate via remote access:
Satellite input frequency adjustable from 950 – 2150 MHz in 1 MHz steps
QAM carrier mode selector
QAM modulations mode
QPSK symbol rate adjustable from 2,000 – 45,000 Ms/s
QAM spectrum mode selector
Selected input signals for vertical and horizontal polarities
Output frequency adjustable from 45 – 862 MHz
Output attenuator, adjustable from 0 – 10dB in 1 dB steps
Serial number and firmware version
Viterbi decoder information
BER (before Reed Solomon)
QAM symbol rate and selected input signal
ASI output data rate in MS/S
Current alarm status
Automatic update of the alarm status
Module Temperature.
Figure 6 shows a headend configuration with ethernet connection for remote monitoring of
the Spaun TDT.
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Figure 6 – Spaun TDT with Etheret Connection
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Figure 7 shows a headend configuration with ethernet connection for remote monitoring of
the Astro TDT.
1.2m dish
LNBF Quad
Spare
Spare
H
V
Power Inserter Tray
FC 658245
1 × V16.4 – BC74691
8 × Quad QAM – BC80510
Ethernet Bus Controller
U953
Ethernet Remote
Monitoring
To
MATV Network
32xQAM Carriers
Figure 7 – Astro TDT with Ethernet Connection
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In addition, monitoring of the following is recommended:
Room temperature
Air conditioning settings
Security at the headend
For further information refer to document FD-T/E/3169 – TDT Technical Specification.
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4.
Network
4.1.
General Network Design Instructions
The correct placement and choice of components should be considered to achieve the
required system performance for both forward path and return path when used.
Ideally a complete survey of the site is required to achieve the optimum result and system
performance. If the site is under construction a complete set of plans showing services paths
and piping layout should be sourced before an MATV design is carried out.
All system designs should be clearly marked showing the product number, location of
equipment and system levels. Drawings shall be supplied in either Auto Cad or Visio format.
The number of cascade amplifiers after an optical hub or main launch amplifier should not
exceed three (3). This includes distribution amplifiers and end of line “home line extenders”.
4.2.
Network Design Topologies
There are typically two system design topologies, tree and branch and Star. The Star
topology is the preferred method as it limits the number of active devices required in cascade
to drive the system.
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4.2.1.
Star Design Topology
A Star Design Topology feeding 768 homes with 4 outlets per home is shown in Figure 8.
Note: When this method is used, an approved tap with high port to port isolation
must be installed at the home wall box. Use of splitters in the home wall box is
not permitted in this instance.
Figure 8 – Star Design Topology
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4.2.2.
Tree and Branch Design Topology
A Tree and Branch Design topology feeding 288 homes with 3 outlets per home is shown in
Figure 9.
Where a tree and branch topology using an approved high port to port isolating tap is used,
the installation of splitters with high port to port isolation is permitted in the home wall box.
Figure 9 – Tree and Branch Design Topology
Note: More than 3 outlets per home can be installed with the use of an end of line
extender amplifier mounted in the home wall box.
4.3.
De-rating Amplifier Output
4.3.1.
Second and Third Products
The maximum permissible output level for broadband amplifiers distributing more than 12
channels relates to:
Composite triple beat (CTB), 60 dB CSO according to DIN EN 50083-3, CENELEC
channel plan
Composite second order (CSO), 60dB SCO according to DIN EN 50083-3 CENELEC
channel plan
66 dB CTB, 64dB CSO for 36 TV channels and 30 FM channels according to Telecom
channel plan 7/8 MHz (up to 450 MHz)2)
4.3.2.
Reduction of amplifier output levels
If more than two channels are being distributed, the output level has to be reduced according
to Table 5.
If FM levels are approximately 10dB lower than TV levels they can be disregarded. In case of
equivalent levels, they are to be counted as the TV channels.
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The level reduction has to be carried out only for the specified third order cross-modulation
ratio output levels (60 or 66 dB) but not for output levels specifying a second order ratio
Table 5 – Reduction Levels
4.3.3.
No of occupied channels
Level reduction in dB
2
0
3
-2
4
-3
5
-4
6
-5
7
-5.5
8
-6
10
-7
12
-8
16
-9
24
-11
36
-12.5
48
-14
60
-15
72
-15.5
85
-16.5
110
-17.5
129
-18
Output reduction in cascade amplifiers
The output level is to be reduced by 3 dB when amplifiers are cascaded and have the same
signal-to-noise ratio for each redoubling of the number of amplifiers.
4.4.
Cable-based Distribution Systems
The following section describes the requirements for cable-based distribution systems,
including the cable portion of any hybrid fibre-coax system.
4.4.1.
Cable Selection
The appropriate cable for the installation environment should be used, for example:
Underground installation – cable with flooding compound
Aerial installation – cable with inbuilt messenger
Common areas requiring fire retardant cable – plenum type cable (fire rated) as
required.
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4.4.2.
Cable Types
Smaller systems, typically around 200 homes, may be designed using coaxial cables
throughout.
Main Trunk Cables
0.05 Hard Line
Secondary trunk cables
RG11 quad shield with 60-40 braid coverage
Drop Cables
RG6 quad shield with 60-40 braid coverage
Note: Underground cables must incorporate a flooding compound, and in some
cases may require an armoured jacket.
Where fibre trunk cables are used, the installation of single mode multi core containing six
fibres or more is recommended.
The use of six or more fibres is recommended to provide spare capacity in the event of
damage to a fibre. The redundant fibres also cater for system expansion should the network
require upgrading.
The number of cascade amplifiers after an optical hub or main launch amplifier should not
exceed three (3). This includes distribution amplifiers and end of line “home line extenders”.
4.4.3.
Cable Types (Fibre-based system)
Optical Cable
Single mode, multi core
Secondary trunk cables
RG11 quad shield with 60-40 braid coverage
Drop Cables
RG6 quad shield with 60-40 braid coverage
Note: Underground cables must incorporate a flooding compound, and in some
cases may require an armoured jacket.
4.4.4.
Extending Cable Reach
There are two methods of extending the cable network reach, “back feed” and “forward feed”.
4.4.4.1.
Back feed
Back feed (see Figure 10) is used where a run of taps drops the signal below the required
input level to drive the amplifier at its optimum performance. The required taps can be by–
passed and cable extended to the amplifier location. A directional coupler can then be
inserted at the output of the amplifier to back feed the required tap locations.
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Figure 10 – Back Feeding Example
4.4.4.2.
Forward Feed
Forward feed is achieved by using a directional coupler to feed the signal into two cables and
extending the second cable to feed an amplifier or bank of taps further down the line (see
Figure 11).
Figure 11 – Forward Feeding Example
Figure 12 – Forward Feeding to an Amplifier
4.4.5.
Active Equipment
Where possible the number of amplifiers or active equipment should be kept to a minimum to
reduce running costs and ongoing maintenance costs. FOXTEL recommends using 0.500”
trunk cables on a non optical system to reduce the number of amplifiers required throughout
the system.
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The number of cascade amplifiers after an optical hub or main launch amplifier should not
exceed three (3). This includes distribution amplifiers and end of line “home line extenders”.
4.4.6.
Location of Active Equipment
All active and passive equipment should be placed in serviceable locations such as:
Lockable service cupboard
Above ground pillar.
The use of underground pits is not recommended for housing passive and active devices
however they can be used as access hatches to help in the installation of cables between the
headend room, service cupboards, and pillars.
4.4.7.
Subscription Broadcast Provider Boundary Issues
3.
Under no circumstances should another Subscription Broadcasting provider’s cable be
used, in total or in part.
4.
Another carrier’s outlet should not be used regardless of whether it is active or inactive.
4.4.8.
Design Optimisation
Where possible, existing or shared pit and pipe infrastructure should be used to minimise
installation costs.
4.4.9.
Cable Segregation
Refer to AS/ACIF S009:2006 and AS/NZS 3000:2000 for cabling clearances and segregation
from other services.
Figure 13 – Minimum Segregation Distance
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4.4.10.
Identification of Cables
Service identification labels (Panduit – PLDR-1 or equivalent) are required for each lateral
and or home run cable to identify a particular subscriber’s cable. This label is to show the
house or unit number
4.4.11.
Earthing of Network
All system components must be earthed in compliance with
AS/NZS 1367:2007, AS/NZS3000, (earthing conductors), and AS/ACIF
S009:2006.
Equipotential bonding is used to ensure that no hazardous voltages are present on the outer
conductors of a cable or any metallic component within the network.
A licensed electrician must carry out connections within the electrical switchboard.
Note: A suitably qualified person can carry out the connection for protective earthing
external to the switchboard.
4.4.12.
Earthing of Fibre Systems
Earthing is not required when an ONT is installed within the home to convert Optical signals
to coaxial signals, in this instance electrical isolation is achieved via the optical connection.
Note: Earthing is required when the coaxial output of the ONT is split to feed 2 or more
homes. (refer to section 5.2 for installation of isolators).
4.4.13.
Connectors
Hard Line Cable shall be fitted with suitable 0.05 connectors.
RG11 and RG6 cable shall be fitted with compression connectors.
4.4.13.1.1. Upgrading Satellite single polarity or non IQ ready Systems to TDT
Technology
All RG11 crimp connectors are to be replaced with RG11 compression connectors when
upgrading an existing satellite backbone to TDT technology. Where possible it is
recommended that RG6 crimp connectors be replaced with compression connectors to
ensure the system performance is not effected by poor return loss or signal ingress.
4.4.13.1.2. Weather Seals
Weather seals are recommended on cables installed in outdoor pillars and service
cupboards.
Sample RG6 and RG11 connectors are shown in Figure 14.
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Figure 14 – RG6 and RG11 Connectors showing Detachable Weather Seals
4.4.14.
Power Block
Power blocks may be required throughout some parts of the network to isolate active
components so that voltage is not passed into areas where it is not required.
4.4.15.
Isolating Line Power Supplies
Line power supplies must be isolated from each other using power blocks between the line
power supplies.
4.4.16.
Optical Transmitter / Receiver
An optical transmitter / receiver should be used to distribute signals in the forward and
reverse path for long cable runs to achieve extended network reach.
(Check manufacturer’s specification for input and output levels).
4.4.17.
Distribution amplifiers
Distribution amplifiers should be used as a launch or secondary amplifier for forward and
return path signals. This device can be mains or lined powered. Typical maximum launch
level is 44dBmV. (Check manufacturers specification.)
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4.4.18.
Line extenders
Line extenders should be used at the end of line or in homes where the signals drop below
the required levels. These devices can be mains or line powered.
Typically the maximum launch level should be 44dBmV. (Check manufacturer’s
specification.)
The line extender replaces the splitter within the home wall box. Up to eight outlets can be
installed by splitting each output of the line extender amplifier.
Figure 15 – Line Extender Amplifier split 4 ways to feed eight outlets
4.4.19.
Reverse Path
FOXTEL uses a ethernet return path so the return path modules do not need to be fitted to
active components. This may change due to local system requirements of some systems.
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5.
Wall Connections
5.1.
Network Interface Point, Wall Box or Optical Network Terminal
The home tap, splitter or line extender amplifier shall be housed in a plastic wall box on the
external wall or in the garage area often called a Network Interface Point (NIP) or Wall Box
(WB). The installation of active or passive devices in roof cavities is not recommended for the
following reasons:
The heat generated in a roof cavity reduces the life of the system components
It restricts access to service personnel.
All boxes are to be installed in a location accessible to service personnel without the use of a
ladder.
If a line extender amplifier is required in the home, the wall box should be large enough to
cater for the required cable radius.
Where ONT’s are installed it is recommended that they are installed in a dry accessible
location within the garage or service cupboard.
5.1.1.
RF Levels at ONT, NIP or Wall Box
ONT
Recommended launch levels out of the ONT (Optical Network Terminal) based on having the
following components connected after the ONT, 4 way tap, 25m cable run and 2 way splitter
at the wall plate.
Digital
Minimum
Maximum
64QAM
16 dBmV
24 dBmV
256 QAM
20 dBmV
27 dBmV
26 dBmV
37 dBmV
Analogue
NIP or WB passive
Minimum RF levels required at the NIP (Network Interface Point) or WB (Wall Box) tap with
up to 40 metre drop cable to the outlet plate
Low Level Tap
45 MHz
862 MHz
Analogue
12.0 dBmV
18.0 dBmV
Digital
2.0 dBmV
8.0 dBmV
Calculations are based on the following:
Analogue
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12.0dBmV less Cable loss 40m RG6 @ 45 MHz of 2.0 dB less splitter loss of 4dB =
6.0dBmV at the outlet.
18.0 dBmV less Cable loss 40m RG6 @ 862 MHz of 8.0 dB less splitter loss of 4dB =
6dBmV at the outlet.
Digital
2.0 dBmV less Cable loss 40m RG6 @ 45 MHz of 2.0 dB less splitter loss of 4dB = 4dBmV at the outlet.
8.0 dBmV less Cable loss 40m RG6 @ 862 MHz of 8.0 dB less splitter loss of 4dB = 4dBmV at the outlet.
Minimum RF levels required at the NIP or WB tap when RG6 drop cable exceeds 40 metre
and is no longer than 70 metres.
Medium Level Tap
45 MHz
862 MHz
Analogue
15.0 dBmV
24.0 dBmV
Digital
5.0 dBmV
14.0 dBmV
Calculations are based on the following:
Analogue
15.0 dBmV less Cable loss 70m RG6 @ 45 MHz of 3.5 dB less splitter loss of 4dB =
7.5dBmV at the outlet.
24.0 dBmV less Cable loss 70m RG6 @ 862 MHz of 14.0 dB less splitter loss of 4dB =
6dBmV at the outlet.
Digital
5.0 dBmV less Cable loss 70m RG6 @ 45 MHz of 3.5 dB less splitter loss of 4dB = 2.5dBmV at the outlet.
14.0 dBmV less Cable loss 70m RG6 @ 862 MHz of 14.0 dB less splitter loss of 4dB =
-4dBmV at the outlet.
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5.2.
Isolators
Isolators electrically separate the customers equipment from the MATV network, protecting
the network and technicians working on the network.
An isolator must be installed between each home – cluster of buildings.
An Isolator is not required where the headend, splitters or taps are installed within the
one building, however earthing of all components are required (refer to section 4.4.11
Earthing of Network for futher information).
Isolators are not required where each home or cluster of buildings are isolated via
fibre optic cable / ONT. (refer to section 4.4.12 eathing of fibre systems).
The isolator is to be installed in the home wall box or service cupboard and must not
be installed in a pillar or in the roof space.
An Isolator must be fitted in all homes at the input to the house tap, splitter or amplifier
unless an ONT is installed before each home
Examples of isolator installations are shown in the following figures.
Figure 16 – Example of Isolator fitted to isolate each cluster of buildings
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Figure 17 – Isolator installed before a Home Tap
Figure 18 – Isolator installed before a Home Splitter
Figure 19 – Isolator installed before a Home Line Extender Amplifier
5.3.
Wallplate
Wallplates shall incorporate an approved type female “F” type RF barrel connector which
allows connection to RF network via the rear “F” connector and can connect to the STU via
the front “F” connector.
5.3.1.
Ethernet connection
The installation of two Cat6 cables should be incorporated into or adjacent to the RF wallplate
to cater for ethernet connection to the Foxtel STB. The other cable can be used for other I.P
services.
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5.4.
System and Wallplate Specifications for Installations
FOXTEL requires all system and wallplate performance testing to be carried out with a meter
listed in the Installer Product List and that readings within a system comply with those in
Table 6, Table 7, Table 8 and Table 9.
If any wallplate performance is found to be substandard during a customer installation,
troubleshooting will be required to identify the source of the fault. Network faults or internal
cabling faults are to be reported to FOXTEL for escalation to either the Network Owner or
Customer.
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Table 6 – Wallplate Digital Performance
Broadcast type
Modulation Error
Ratio
Bit Error Rate
(In band noise ratio)
Standard
Modulation Type
Pre-Viterbi
Pre – RS
or Post-Viterbi
Minimum (dB)
DVB-S2 (PER)
DVB-C
64 QAM
DVB-C
256 QAM
DVB-S /S2
QPSK
>25dB*
<2E-4 (DVB-S)
<2E-7
30 *
<2E-7
36 *
<2E-7
12.5
(PER <1X10-7)
DVB-T
COFDM 64 QAM
Analogue
RF Integrated
Channels
Terrestrial OB
Notes:
+
<2E-4
<2E-7
24
–
–
SNR >43 dB
* Allows for an external two-way splitter at the wallplate
+
Clear sky weather conditions level.
Table 7 – Wallplate Signal Level
Wallplate Level (dBµV)
Broadcast Type
Commercial Single Dwelling Multi-Dwelling Unit, Multi-Residential Estate
Residence (SDR) ONLY
and Large Commercial
Systems >20 RF Channels
Min
Max
Min
Max
FM radio
45
80
54
71
Analogue
RF Integrated
Channels
Terrestrial OB
60
86
60
77
DVB-C
64 QAM
N/A
N/A
* 56 (-4dBmV)
70 (10dBmV)
DVB-C
256 QAM
N/A
N/A
* 60 (0dBmV)
74 (14dBmV)
DVB-S / S2
QPSK
58
79
58
76
DVB-T
COFDM 64
QAM
40
75
54
77
T-DAB
COFDM QPSK
50
80
45
67
Standard
Modulation
type
Analogue
* Allows for an external two-way splitter at the wallplate
Notes:
All digital levels are RMS voltage or Digital Channel Power. Digital Channel Power measured values may be
+/- 2 dB from the levels listed due to accuracy of meters.
FM radio services shall be kept at least 10 dB down to other analogue carriers throughout the network.
Digital channels shall be kept 10dB down to other analogue carriers throughout the network.
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5.4.1.
Echo Level at Wallplate
The minimum echo level measurement either side of the centre carrier shall be >25dB at the
wallplate.
Table 8 – Wallplate Digital Slope / Tilt Performance
Broadcast Type
Wallplate Level Slope Tilt (dB)
Maximum level difference
Maximum level difference
at single wallplate
ALL wallplates in system
RF Integrated
Channels
Terrestrial OB
6
12
DVB-C
64 QAM
6
12
DVB-C
256 QAM
6
12
DVB-S
QPSK
12
18
DVB-T
COFDM 64 QAM
6
12
Standard
Modulation Type
Analogue
Note:
Measured values may be +/- 2dB from the levels listed owing to accuracy of meters.
Table 9 – Post Installation Certification Test Locations
Broadcast Type
Test Locations
Amplifiers
House Tap and
wallplates
Standard
Modulation type
Analogue
RF Integrated
Channels
Terrestrial OB
All channels
Low and High channels
(all RF integrated
Channels)
DVB-C
256 QAM
All carriers
All carriers
DVB-S
QPSK
All Transponders
All transponders
DVB-T
COFDM 64 QAM All channels
Highest and lowest
channels
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6.
Commissioning
6.1.
Installation Certification Testing
6.1.1.
LNB Tests
All ports from the LNB must be tested by the installation company for Digital Channel Power,
Modulation Error Ratio and Bit Error Rate for all Transponders. All test details must be
documented on the As Built SOW.
6.1.2.
Amplifier Tests
All amplifiers must be tested by the installation company for Digital Channel Power,
Modulation Error Ratio and Bit Error Rate for all Transponders This will ensure all satellite
transponders are being received as per specification. All test details must be documented on
the As Built SOW.
6.1.3.
TDT Headend Tests
All inputs to the TDT Headend from the LNB must be tested by the installation company for
Digital Channel Power, Modulation Error Ratio and Bit Error Rate for all Transponders. All
test details must be documented on the As Built SOW.
The output of the TDT Headend must be tested by the installation company for Digital
Channel Power, Modulation Error Ratio and Bit Error Rate for all QAM carriers.
6.1.4.
NTD Tests
All sites must have signals tested at the Network Termination Device (NTD). This can be
either a Gig Passive Optical Network (GPON), Passive Optical Network (PON), or passive
Tap. All test details must be documented on the As Built SOW.
Digital Channel Power, Modulation Error Ratio and Bit Error Rate Signal measurements are
required for all QAM carriers.
On completion of the installation design, the installation company must ensure that all NTD
performances meet FOXTEL specifications.
6.2.
Quality Control
FOXTEL’s quality expectations and processes focus on ensuring that the design and field
installation process is positive and beneficial to everyone involved in the FOXTEL process
and that they will happily recommend the FOXTEL process to others.
FOXTEL, or one of our National Service Providers, reserve the right to actively inspect the
work performed by Third Parties to ensure that their work meets the required standards. If
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subsequently the work is found to be of an inferior standard then the Third Party installer will
be required to make the necessary reparations.
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7.
Technical Reference Information
7.1.
Aligning a Satellite Dish
The Scope of Work will be used to select the appropriate mount and dish and the selection
will be confirmed as appropriate for the installation location by a FOXTEL Industry Designer.
The preferred method for alignment is to use a Multi-Dwelling Unit meter or dish-pointing
meter (see Installer Product List). When using these meters there are four steps to aligning a
dish:
1.
Ascertain the city azimuth elevation using Table 10.
2.
Use a compass for the azimuth setting and an inclinometer for the correct elevation for
the location (ensure the mount is vertically plumb).
3.
Adjust the dish precisely by panning horizontally (azimuth) and vertically (elevation) to
receive maximum signal strength.
4.
Align the LNB to obtain maximum cross-polarisation adjustment (maximum Modulation
Error Ratio level).
Table 10 – Azimuth, Elevation and Skew Information City
Location
Azimuth Magnetic
North
(degrees)
Elevation of Satellite
(degrees)
Skew
(degrees)
Adelaide
21.54
45.39
22
Brisbane
-4.74
57.81
39
Canberra
-0.10
48.41
35
Melbourne
6.74
44.65
31
Perth
60.83
33.17
-1
Sydney
-3.63
50.26
38
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Table 11 – Azimuth, Elevation and Skew Information cont;
Regional Areas
Location
Azimuth Magnetic
North (degrees)
Elevation of
Satellite (degrees)
Skew (degrees)
Albany
53.82
32.81
3.62
Albury
15.23
47.06
32.74
Alice Springs
40.55
52.78
4.34
Broome
65.27
46.25
-14.78
Bundaberg
-1.78
60.65
37.21
Cairns
24.77
66.91
14.71
Carnarvon
66.47
34.98
-10.45
Ceduna
32.59
45.49
13.81
Coffs Harbour
-6.22
54.54
40.08
Coober Pedy
33.35
48.9
11.82
Darwin
61.91
57.43
-17.56
Dubbo
2.82
51.63
33.46
Geraldton
Gosford
63.62
-4
33.9
50.8
-5.3
38
Griffith
6.95
48.76
30.75
Hobart
-0.99
39.75
35.76
Horsham
13.05
44.99
27.25
Kalgoorlie
53.23
38.25
1.35
Launceston
0.26
41.27
35.09
Moree
1.78
54.99
34.23
Mount Isa
Newcastle
34.28
-4.7
59.45
51.4
7.77
38
Port Augusta
24.8
47.37
18.79
Port Pirie
23.76
46.8
19.71
Rockhampton
4.14
61.95
32.49
Roxby Downs
28.04
48.73
15.98
Tamworth
-1.61
53.37
36.64
Townsville
26.16
65.09
20.4
Whyalla
31.55
46.72
18.97
For Azimuth, Elevation and Skew details for locations other than those shown in Error! Reference
source not found., contact your satellite dish supplier or manufacturer
http://www.jonsa.com.au/Angles2/index.php
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7.2.
Satellite Transponder Listings
Table 12 shows the C1 and D3 transponder listings.
Transponder
Symbol Rate
FEC
Downlink Centre
Frequencies
Polarity
10.7 L.O
TDT QAM
Frequencies 03
Channel Number
C1
C1
C1
C1
C1
C1
C1
T17
T12
T15
T13
T18
T16
T20
27800
27800
27800
27800
27800
27800
27800
3/4
3/4
3/4
3/4
3/4
3/4
3/4
12558.0
12358.0
12478.0
12398.0
12598.0
12518.0
12689.0
H
H
H
H
H
H
H
1858.0
1658.0
1778.0
1698.0
1898.0
1818.0
1989.0
250
258
266
274
282
290
298
1
2
3
4
5
6
7
Used
Used
Used
Used
Used
Used
Used
D3
T22
29455
3/5
12094.0
H
1394.0
306
8
Used
D3
T23
27800
3/4
12135.5
H
1435.5
314
9
Used
D3
T24
27800
3/4
12177.0
H
1477.0
322
10
Used
D3
C1
C1
D3
D3
D3
D3
D3
D3
D3
D3
D3
D3
D3
C1
D3
T14
T19
T14
T10
T11
T12
T13
T21
T20
T17
T19
T18
T9
T8
T11
T4
27800
27800
27800
27800
27800
27800
29455
29455
29455
27800
27800
27800
27800
27800
27800
27800
3/4
3/4
3/4
3/4
3/4
3/4
3/5
3/5
3/5
3/4
3/4
3/4
3/4
3/4
3/4
3/4
11762.0
12638.0
12438.0
12094.0
12135.5
12177.0
11720.5
12052.5
12011.0
11886.5
11969.5
11928.0
12052.5
12011.0
12278.0
11845.0
H
H
H
V
V
V
H
H
H
H
H
H
V
V
H
V
1062.0
1938.0
1738.0
1394.0
1435.5
1477.0
1020.5
1352.5
1311.0
1186.5
1269.5
1228.0
1352.5
1311.0
1578.0
1145.0
330
338
346
354
362
370
378
386
394
402
410
418
426
434
442
450
458
466
474
482
490
498
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Used
Used
Used
Used
Used
Used
Used
Used
Used
Used
Used
Used
Used
Used
Used
Used
Future
Future
Future
Future
Future
Future
Status
Satellite
Table 12 – C1 and D3 Transponder Allocations
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7.3.
Test Equipment
Test equipment to be used on FOXTEL installations have been categorised into the following
work requirement types
a.
Dish pointing for Single Dwelling Residence installs
b.
Installation, service calls – troubleshooting and commissioning work for Small MDUs,
MDUs, MREs and commercial (satellite only)
c.
Quality Audit Inspections (QAI), installation, service calls – troubleshooting and
commissioning work for integrated RF or OB and satellite MDUs, MREs and
commercial work
d.
QAM Analyser for audit inspections (QAI), installation, service calls, trouble shooting
and commissioning work.
Table 13 shows the equipment for each work type.
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Table 13 – Work Specific Test Equipment
Test Equipment Use
Description
Work
Type
Dish
Alignment
DCP
Rover HD Flash Commercial
ABC


Rover Master STC
ABC

Rover HD Compact
ABC

BER
pre V
Pre RS
Data
logging














MER
JDSU DSAM
2000
2300
3300
C





Sunrise AT2500RQ Field
Analyser
C





Sunrise CM300E
C





Rohde & Schwartz Lab Analyser
D




Note:

A = Satellite MDU Installation / Service Call Out / Troubleshooting meter
B = Satellite MDU / MRE / Commercial meter
C = QAM Field Analyser
D = QAM Field Analyser
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Appendix A.
Glossary
Table 14 – Glossary
Term / Acronym
Meaning
AC
Alternating current
Active Components
Equipment used in SMATV systems, which require power to operate.
Adjacent TV Channels Any two channels with video carriers separated by a statutory guard
band.
Amplifier
An active device used to boost RF signal levels.
Amplifier Antenna
(Antenna amplifier) An amplifier directly associated with an antenna
should be low noise to improve system signal to noise ratio.
(Mast Head)
Amplifier Cascaded
(Cascaded amplifier)
An amplifier, which amplifies a signal already, amplified by another
amplifier, must be de-rated by 3dB for each doubling of the cascade
Amplifier Distribution
An amplifier, located at the head-end of the system, designed to
(Distribution amplifier) compensate for the system losses and to provide the necessary levels
at the system outlets.
Amplifier Repeater
(Repeater amplifier)
An amplifier designed to compensate for the system losses and to
provide the necessary levels at the system outlets. Note: must be derated by 3dB for each doubling of the cascade
Amplifier Single
Channel (Single
channel amplifier)
A distribution amplifier designed to amplify a single channel only and to
provide rejection of other channels.
Amplifier Wide
(Wide band amplifier)
A distribution amplifier or a repeater amplifier designed to amplify a
multiplicity of channels (for example, VHF-UHF and SAT). Limited
bandwidth Amplifiers are intended to amplify no more than 10TV
channels.
Attenuator
A passive device used to reduce the level of a RF signal.
Automatic Gain
Control Amplifier
An amplifier designed to compensate for fluctuations of the input signal
and to provide a constant output signal.
Backbone Cabling
All cable plant from the headend to any subdistribution node points.
Typically the backbone cable is RG11Q in large systems.
Bandwidth
A specific range of frequencies.
Bit Error Rate (BER)
post Viterbi
Used in digital transmission system to indicate the quality of the
transmission (defined by number of error bits/total bits after Viterbi error
correction)
Bit Error Rate (BER)
pre Viterbi)
Used in digital transmission system to indicate the quality of the
transmission (defined by number of error bits/total bits before Viterbi
error correction)
Block Converter
A device uniformly changing frequencies of all signals in a particular
block of channels.
Braid
Strands of wire woven together to form an electrical shield.
By-pass Mode
When activated on a VCR the input channels are shunted straight to its
output.
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Term / Acronym
Meaning
Carrier to Noise
The difference expressed in dB between the vision and noise floor level,
at a given point in the system. The C/N is the difference between a
wanted signal and unwanted noise.
Carrier to Intermodulation Ratio
The difference expressed in dB, at a specified point of the system
between the levels of the carrier and of the inter-modulation product.
Cascadable Tap
A passive device with multiple 5 inputs, 5 line outputs and 5 resistive
tapped outputs with slope or tilt.
Cascadable Tap
System
A complex cabling system method or topology. Also known as Tree and
branch or drop tap system in MATV/CATV systems. Uses Taps
(cascaded) to supply signal to the multiple wallplates
Channel Combiner
A device used to combine ports carrying VHF and/or UHF channels into
a single port. (NOTE: Most devices can be used in reverse to split the
channels, eg. diplexer)
Channel Converter
A device changing frequency of all signals in a particular channel by the
same amount.
Channel Loading
Number of TV channels in operation. Maximum Channel Loading refers
to the maximum number of channels for which the system is designed.
The output level performance of wide band amplifiers depends on
channel loading. Amplifiers require de-rating depending on the number
of channels being amplified. The manufacturer will provide the de-rating
factors on their data sheet.
Chrominance
A characteristic of a composite TV signals describing the colour.
Requires luminance to be visible.
Chrominance/
Luminance delay
Inequality
Delay between associated chrominance and luminance signals within a
single channel (4.43 MHz) measured in nanoseconds. The performance
and worst case channel must be quoted.
Composite Second
Order (CSO)
Amplitude distortion due to second order composite non-linearities of
the system. The worst case (for any channel) must be specified.
Composite Triple Beat Amplitude distortion due to the third order composite non-linearity of the
(CTB)
system. The worst case (for any channel) must be specified.
Composite Cross
Modulation (CCM)
Refers to cross-modulation at maximum channel loading.
Commissioning
Tests which confirm that an installation is operating to designed
specifications.
Conifer
A brand name for MPS antennas and downconverters.
Cross-modulation
Interfering (unwanted) modulation of carrier by modulation of another
carrier or carriers due to non-linearities of the equipment.
Customer Tap (-off)
A device designed to obtain signal from a trunk cable node and
incorporating means for connection to the subscriber’s feeder.
Customer lateral feeder is also referred to as customer drop cable. The
tap should be the last device between outlet plates and the through port
terminated with a 75 Ohm load.
Customer wallplate
A device fitted in the user's premises for connection of the receiving
equipment. It is also referred to as a system outlet or TV outlet.
dBi – Decibel
Antenna gains in decibels compared to an Isotropic antenna. The
logarithm of a ratio of two powers multiplied by 10.
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Term / Acronym
Meaning
dBuV –Decibel
Microvolt
Microvolts expressed as a decibel ratio. The logarithm of the value of a
signal measured in uV multiplied by 20 (to convert dBuV to dBmV
deduct 60 from the value expressed in dBuV).
dBmV – Decibel
Millivolt
Millivolts expressed as a decibel ratio. The logarithm of the value of a
signal measured in mV multiplied by 20 (to convert dBmV to dBuV add
60 from the value expressed in dBmV).
DC
Direct Current.
Decibel Ratio
The logarithmic ratio of two powers multiplied by 10 log or two voltages
multiplied by 20 log.
Dielectric
Insulative material used to separate two electrical conductors.
Directional Coupler
A coupler sensitive to the direction of the flow of the energy and
intended to minimise the effect of unwanted reflected signals.
Directivity
The ability of a device to discern the direction of the flow of electromagnetic energy.
Display Channels
Programmable memory location in a receiver, which stores the actual
TV frequency.
Distribution Amp.
An active device used after a launch amplifier to compensate for system
losses.
Down converter
A device used to translate a high frequency to a lower frequency.
Diplexer
A device in which the signal energy at one (input) port, which covers a
frequency band, is divided between two or more (output) ports, each of
which covers a part of that frequency band. Note: this device can be
used in reverse direction for combining the two signals of different
frequency.
F connector
Type of connector used in open broadcast and subscription television
systems.
F type barrel
Used to facilitate connection between two F type connector also known
as F-81.
Feeder-Node
A feeder node is a point in the SMATV that may consist of amplifiers,
splitters and couplers that the lateral cable feeding the subscriber's unit
is connected to.
Filter
A device designed to pass or block a single (pre-determined) frequency
or a range (band) of frequencies with a minimum of loss, and the same
time, to attenuate all other frequencies.
Filter (band-pass)
A device designed to pass a range (band) of frequencies.
Filter (band-stop)
A device designed to stop (eliminate) a range (band) of frequencies.
Filter (high-pass)
A device designed to pass high frequencies.
Filter (low-pass)
A device designed to pass low frequencies.
Gain
The ratio of the output power to the input power expressed in dB.
GPO
General Purpose Outlet (240Volt power point).
Ghosting
When multiple images appear on the TV picture due to multi-path or
ingress of unwanted reflected signal into the system due to poor
screening may also cause leading edge ghosting.
HAM
A colloquial term used to describe an Amateur Radio Operator.
Head-end
Location from which all signals are launched in a distribution system.
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Term / Acronym
Meaning
Home run (Star wired) A simple cabling system method or topology. Where all cable(s) are run
from the wallplate(s) to a central location where a end of line device, for
example, multiswitch is usually installed
HRCT
A more complex cabling system method or topology. A hybrid of Home
Run and Cascaded Tap systems together, known as HRCT hybrid
wiring method
Impedance
A complex resistance of inductive, capacitive reactance and DC
resistance.
Ingress
Any amount of unwanted RF signals entering a device or cable system.
Inter-modulation
The process in which the non-linearity of the equipment produces
spurious signals (Inter-modulation products) at frequencies being linear
combinations of those of the input signals. In other words, when two or
more signals beat together to produce new signals.
Insertion Loss
The attenuation of the signal strength due to the insertion of passive
devices in a distribution system.
Isolation
The attenuation between two ports usually expressed in dB. AC
isolation refers to isolation of the device from AC, for example,, of
isolation in a system outlet of both inner and outer conductors of the
coaxial cable from the outlet.
Impedance Matching
A process by which two impedances are made relatively equal (a wellmatched test set up has at least 20dB return-loss-ratio relative to the
system impedance).
LBand
Frequencies located in the band 950-2150 MHz (Satellite IF Band)
Low Noise Block Feed Low Noise Block Feed – a down-converter which sits in the front or
or LNB
centre of the dish, and collects all the reflected microwaves from the
dish. The LNB has an integrated feed horn. The waves travel along the
feed horn and enter the LNB where they are converted and transferred
to the satellite receiver via the coax cable.
LNC
Low Noise Converter (converts high frequencies to lower frequencies).
Lateral Cable
A cable, which connects, from the termination point or sub-distribution
point to the wallplate
Lead in cable
(subscriber feed)
Feeder cable connecting premise from cascadable tap to subdistribution point (node with all premise lateral cables)
Launch Amplifier
(twin)
An active device located at the Head-end which boosts RF signal levels.
Local Origination
The production of local programs or services through a channel or
channels in a distribution system not involving broadcast signals.
Luminance
A characteristic of a composite television signal (represented by Ey)
describing light intensity. Measured in lux.
MATV
Master Antenna Television. Where multiple rooms or units in the one
building (for example a hotel) receive TV and radio channels through a
common, master antenna.
Modulation Error Ratio Modulation Error Ratio (in band noise ratio)
(MER)
Modulator
A modulator converts the video (and/or audio) output of the STU to an
RF signal so that it can be received on a standard TV.
MHz
Mega Hertz (One Million Hertz)
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Term / Acronym
Meaning
Multi-path
Occurs when an analogue terrestrial TV signal suffers refraction or is
reflected by external objects.
Noise
Unwanted electromagnetic radiation.
Noise Figure
Noise factor expressed in dB.
OB TV
Open Broadcast Television also known as FTA or OFF AIR. This term
includes analogue and digital.
ONT
Optical Network Terminal
PAL
Phase Alternation by Line (phase error correction method for colour TV
signals) in Australia.
Passive Components
A circuit, equipment or network used in Pay-TV systems which do not
require power to operate.
Personal Digital
Recorder
Personal Digital Recorder (PDR) – r eceives d ig it al in f o r m at io n v ia
cab le o r sat ellit e, d eco d es t h is in f o r m at io n an d sen d s it t o
t h e TV. Also h as ab ilit y t o r eco r d an d p lay b ack TV
p r o g r am m es
Polarisation
Describes the direction of the electric field in an electromagnetic wave.
QAM
Quadrature Amplitude Modulation
QPSK
Quaternary Phase Shift Keying
Radiation system
The unwanted transmission of signals from any part of the system
(cables, amplifiers and passive devices) to air.
(System radiation)
Radiation spurious
(Spurious radiation)
Any radiated signal transmitted outside the allocated channels (this may
interfere with other services).
Radio Interference
Unwanted RF signals which can degrade the reception of TV services.
Reflection
The reflection of electromagnetic energy due to a poor impedance
matching.
Reflection Coefficient
A measure of the reflected signal, defined as a ratio of the reflected
wave to the forward wave.
Return Loss (RL)
Defined as the logarithm of the reciprocal value of the reflection
coefficient, multiplied by 20 and expressed in dB. In other words, a
measurement of impedance mismatches.
RF
Radio Frequency
SMS
Subscriber Management System
Set Top Unit/Box
An addressable receiver used to receive and decode the FOXTEL
services. Also referred to as an IRD (Integrated Receiving Device)
Signal to Noise Ratio
(SNR)
Ratio of the signal level to the noise level measured at the same point in
the system and expressed in dB.
Single Channel
Amplifier
An active device that is tuned to amplify only one TV channel.
Slope (also Tilt)
Plot of frequency versus signal amplitude over a specified bandwidth.
This is also known as the tilt of the system.
SMATV
Satellite Master Antenna TeleVision. Where multiple rooms or units in
the one building (for example a hotel) receive TV and radio channels
through a common, master satellite receiver.
Splitter
A device designed to separate a specified amount of RF signal into
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Term / Acronym
Meaning
equal parts from the main transmission.
Scope of Work
Scope of Work detailed information required to produce RF design and
quotation for installation of system
Spurious
Unwanted signals generated from an active device, for example,, an
amplifier.
Structural Return Loss The return loss characteristic of a cable due to periodic structural
variations of the cable during manufacturing.
Sub-distribution Node
Point
A junction where a number of cables carrying the RF signals converge.
A point in a distribution system where backbone cabling splits into drop
cables. All Node points must be earthed.
Subscriber
Termination Point
The connection point for a drop cable just prior to entering a subscriber
dwelling. This point is also known as the point of entry
Subscription TV
TV channels which the subscriber pays a fee to receive.
System Immunity
The ability of the system to operate without visible impairments in the
presence of unwanted outside electro-magnetic fields. Standards
Australia AS1367:2000 defines the “figure of merit” for synchronous
working as the ratio of the working signal level or ‘picked up’ signal at
the same outlet, with all system inputs terminated.
System outlet
see wallplate
Tap
A passive device with one input, one-line output and one or more
resistive tapped outputs.
Transparent Digital
Transparent Digital Transmodulation converts a QPSK carrier (satellite)
Transmodulator (TDT) to QAM carrier (cable) so that they can be reticulated through a CATV
or SMATV system.
Tee-Off
See directional coupler, Tap
Terminator (75 ohm)
A passive device fitted to an unused RF output or input port to inhibit
reflections into the SMATV system.
Trunk Cable (twin)
Feeder cable to which branch feeder is connected.
Note: This may not exist in smaller installations.
Trunk cabling
Main cable carrying RF signals through a building also known as a
backbone cable.
Twin wallplate
Wallplate with two subscription television outlet plugs.
UV
Ultra Violet
VAC
Volt Amp Current.
VCR
Video Cassette Recorder
VSWR
Voltage Standing Wave Ratio –A ratio of adjacent maxima of a standing
wave created by forward and reflected waves. It is related to the
reflection coefficient by the expression:
VWSR= 1 + [r] ,
where [r] is the absolute value of the reflection coefficient.
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Appendix B.
Drawing Symbols
A standard drawing symbol chart from AS/NZ:1367
Figure 20 – Standard Drawing Design Symbols
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Appendix C.
C.1.
Technical Specification
Passive Equipment
Equipment/Reading
Terminal Fly-leads:
System Outlet:
Splitters:
Directional Couplers:
Requirement
Terminal fly-leads are defined as those cables that connect a
terminal device to a system outlet and/or those cables that connect a
subscriber’s terminal device to any device connected between the
system outlet and the input to the terminal device.
All connectors fitted to terminal fly-leads shall comply with IEC
60169-24.
The return loss of the terminal fly-lead when terminated with a
precision termination should be:
24dB in the range 5MHz to 862MHz
18dB in the range 950MHz to 2150MHz
The terminal fly-lead shall be constructed from cable having the
same structural return loss as that specified under coaxial cable in
this section.
The screening effectiveness of the fly-lead, measured according to
IEC 60996-1 Amendment 1, should be 95dB in the range 30MHz
to 1000MHz.
To minimise the chances of damage, the dielectric of the fly-lead
should be continuous along its entire length in the manner specified
under coaxial cable in this section.
The return loss of any TV interface port, located on the system
outlet, should be 20dB in the range 40MHz to 2150MHz.
The screening effectiveness of the system outlet, measured
according to IEC 60996-1, should be 75dB in the range 30MHz to
1000MHz and 65dB in the range above 1000MHz to 2150MHz.
The return loss for all ports located on splitters shall be 20dB in the
range 40MHz to 862MHz.
For all splitters, the peak-to-peak narrowband flatness from input to
output and, input to any customer tap port, shall be 0.5dB for any
36MHz segment.
The isolation between the output ports for a splitter shall be 34dB
in the range 5MHz to 862MHz.
In the case of splitters with unequal output division, the above
requirements for isolation shall be increased by the difference in
attenuation between the output ports.
The return loss for all ports located on taps shall be 20dB in the
range 40MHz to 862MHz.
The RF mutual isolation between output ports for directional
couplers and distribution taps shall be 35dB within the band 5 MHz
to 862 MHz.
The screening effectiveness of any splitter or tap, measured
according to IEC 60996-1 shall be 75dB in the range 30MHz to
1000MHz.
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Equipment/Reading
Coaxial Cable:
Coaxial Connectors:
Other passive
devices:
Requirement
To minimise the chance of damage during installation and corrosion
after installation, flexible cables, for example, RG6 and RG11, must
have a continuous dielectric such that the centre solid conductor is in
full contact with the dielectric and homogenous to the shield, along
the entire length of the cable.
Cables that comply with this standard include those constructed with
solid, foam or cellularised-polymer dielectrics as long as they
comply with all parts of this section where appropriate.
Flexible cables constructed without this characteristic, such as airspaced or semi-air spaced cables, or cables with a multi-strand
centre conductor do not comply with this specification.
The use of backbond hardline cables constructed with a sealed cell
dielectric, or equivalent, that prevents moisture entry is permitted.
All cables installed underground must be of the flooded type.
The screening effectiveness of super trunk feeders, trunk feeders
and branch feeders, measured according to IEC 60996-1
Amendment 1, should be 95dB in the range 30MHz to 1000MHz.
The screening effectiveness of subscriber’s drop feeders, measured
according to IEC 60996-1 Amendment 1, should be 95dB in the
range 30MHz to 1000MHz.
The structural return loss for all cables, including terminal fly-leads,
should be not less than 26dB.
Only compression F-type connectors should be used at the interface
between passive devices and flexible cables unless otherwise
specified.
The connectors specified above should comply with IEC 60169-24.
The connectors used in conjunction with backbone hardline cables
should be pin type in construction. The use of feed through
connectors on these cables does not comply with this Specification.
The return loss of the connectors specified above should be 20dB
in the range 5MHz to 1000MHz, measured in accordance with IEC
60169-24.
The screening effectiveness of the connectors specified above
measured according to IEC 60996-1., should be 75dB in the range
30MHz to 1000MHz.
It is a requirement of the Specification that in addition to the
specifications mentioned above, all connectors used to terminate
cables should meet those specifications published by the applicable
cable manufacturer.
These devices include transfer points, power inserters/injectors,
cable splices, galvanic isolators, terminating resistors, filters and
equalisers.
The return or loss on all ports of these devices should be 14dB in
the range 40MHz to 862MHz.
The peak-to-peak narrowband flatness from input to output passive,
one and two port devices should be 0.2dB for any 0.5MHz and
0.5dB for any 7MHz segment.
The screening effectiveness of these devices, measured according
to IEC 60996-1, should be 75dB in the range 30MHz to 1000MHz.
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Equipment/Reading
Requirement
Nominal Impedance: The nominal impedance of all passive equipment should be 75 ohms.
All measurements are to be referred to this impedance.
Table 15 – Passive Equipment Specifications
New FOXTEL items for satellite installations
RG6 “F” connectors
RG11 “F” connectors (compression type)
F-81 barrels
Twin wall plates with F-81 barrels
75 Ohm terminators
3, 6 & 10dB Attenuators
Power injectors
Splitters
Return
Loss
>20dB
>20dB
>20dB
>20dB
>20dB
>20dB
>14dB
>20dB
Insertion
thru loss
<0.5dB
<0.5dB
<0.5dB
<0.5dB
N/A
#
<1.5dB
various
Linearity
.+/- 0.25dB
.+/- 0.25dB
.+/- 0.25dB
.+/- 0.25dB
N/A
.+/- 0.5dB
.+/- 1.0dB
.+/- 0.5dB
Notes:
# Insertion thru loss will be dependant on manufacturers equipment specifications.
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C.2.
Active Equipment
Equipment/Reading
Active Distribution
Equipment:
Requirement
This specification is applicable to all coaxial limited bandwidth and
broadband amplifiers used in cable distribution systems in the
frequency range 5MHz to 862MHz.
Amplifiers that comply with the specifications may be exclusively
forward path or reverse path amplifiers or possess both forward and
reverse path capability.
All amplifiers should incorporate F Type input and output ports.
Cable Amplifier:
Separate Launch and line amplifiers or Launch and line amplifiers that
are capable of combining OB services where applicable as well as QAM
services. The number of outputs will depend on the type of equipment
used. Amplifiers should have mains or line powering options. Where
line power options are used, power inserters should be allowed for with
the correct voltage and current for the application on hand.
Frequency Range:
The frequency range or ranges, over which the equipment is specified
shall be published.
Nominal Impedance:
The nominal impedance of all amplifier ports including test points
should be 75 ohms. All measurements are to be referred to this
impedance.
Return Loss:
The return loss specification of all input and output ports of an
amplifier should be achieved under all specified conditions of
automatic and manual gain and slope controls and with any
combination of plug-in equalisers and attenuators fitted.
The return loss of all ports of any broadband or limited bandwidth
amplifier should be 14dB in the range 40MHz to 862MHz.
Gain and slope
control:
The variable gain control may be either plug-in pad or potentiometer.
Typically 0 – 20dB.
The variable slope control may be either plug-in pad or
potentiometer. Typically 0 – 12dB.
Flatness:
The flatness specifications should be achieved in all specified
conditions of automatic gain control, manual gain control with any
combination of plug-in equalisers and attenuators specified for use
with the device.
The flatness of the amplitude frequency response from the input to
the output ports shall be published. Slope is assumed to be
eliminated either by calculation or by cable.
The peak-to-peak narrowband flatness from the input port to any
output port should be 0.5dB for any 36MHz segment.
Broadband
Amplifiers:
A broadband amplifier in this context is defined as one having a
continuous bandwidth greater than 10 television channels.
Maximum Amplifier
Output Level
The maximum output level figure assumes a channel bandwidth of
32MHz and a channel loading using a fully loaded noise spectrum 5 862MHz.
Screening
Effectiveness of
Equipment:
The screening effectiveness of all active distribution equipment
including multiswitches measured according to IEC 728 should be
75dB in the range 30MHz to 862MHz.
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Equipment/Reading
Power Supply:
C.2.1.
Requirement
The power supplies of all active distribution equipment should be
capable of continuous operation and rated to meet local AC mains
specifications and have a ‘Certificate of Suitability’ from the relevant
Australian energy authority (except where the unit is a line powered
device).
Amplifier Maximum Output Test Method
An alternative method for the measurement of the maximum level or more correctly channel
power of a service in a group of services, may be specified a measurement that is based
upon a specified level of IM’s when the active device is provided with an input of wideband
Gaussian noise. This is called Digital Service Rating.
C.2.1.1.
Digital Service Rating
The level of IM’s may be measured by the use of an amplitude notch in the noise spectrum
that has depth greater than the IM’s that are being measured. For the Terrestrial Band, a FM
Band II trap is typically sufficient for this test. For the Satellite IF Band, a BNC “T” piece with a
BNC male barrel on the stub of the T piece on the output of the noise generator, will typically
provide a -35dB depth notch around 1.3GHz. The channel power is measured at a maximum
(average of any ripple) in the spectrum at a specified bandwidth.
The recommended IM level rating for the Terrestrial Band is –30dB and for the Satellite IF
Band –25dB IM is appropriate. –25dB IM is approximately equivalent to 1dB compression.
The recommended level measurement bandwidth is 7 MHz for DVB-T applications and 32
MHz for the Satellite IF Band. Other bandwidth can me be calculated from these base
measurement bandwidths.
This wideband noise method for the rating of the level handling capacity of active devices will
provide a very practical guide in systems that are intended to carry Digital services. The full
bandwidth wideband noise will inherently provide a margin to allow the ability to handle a
maximum number of channels in the useable spectrum.
The method allows the measurement to be conducted both in a testing laboratory and in the
field with readily available and economical test equipment.
During system commissioning the method should be used to adjust the gains in the system
with the noise input equal to the maximum transponder and / or DVB-T and / or DVB-C
service. This method will substantially cater for increased loading of the Bands.
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Specifications
As technology changes, the specifications FOXTEL require will also change.
FOXTEL reserves the right to remove any product from the IPL if the product does not meet
specifications from time to time.
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Appendix D.
Reference Standards
Table 16 – Australian Standards
Number
Title
Published
AS/NZS 1367:2007
Coaxial cable systems for the distribution of analogue 31-Oct-07
television and sound signals in single and multiple unit
installations.
AS/NZS 3000:2000
Electrical installations (known as the Australian and
New Zealand Wiring Rules)
15-Sep-99
AS/ACIF S008 - 2001
Requirements for authorised cabling products
24-Dec-01
AS/ACIF S009 - 2006
Installation requirements for Customer Cabling (Wiring
Rules)
Communications
Segregation distances of cables refer to
Cabling Handbook SAA
HB29 2000
AS 1170.1-1989: Part 1 Loading Code AS 1170.1-1989: Part 1 – Dead and live
loads and load combinations
AS 1170.2-1989: Part 2 Loading Code AS 1170.2-1989: Part 2 – Wind Loads
AS 1199.1-2003
Sampling Procedures for inspection by attributes –
Sampling schemes indexed by acceptance quality limit 28-Jul-2003
(AQL) for lot-by-lot inspection
AS 1720.1-1997: Part 1 Timber Structures AS 1720.1-1997: Part 1 – Design
Methods
AS 3700-1998
Masonry Structures AS 3700-1998
AS 3815 - 1998
A Guide to Coaxial Cabling in Single and Multiple
Premises
AS 4055-1992
Wind Loads for Housing AS 4055-1992
AS 4100-1998
Steel Structures AS 4100-1998
5-Apr-98
Note: FOXTEL specifications are to be used if they are higher than the referenced
standards.
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Appendix E.
STU Installation
The following instructions are provided for situations where the network installer will also be
responsible for installing the Set Top Unit (STU) in the home.
E.1.
Installing STU in the Home
The installation of the RF signal into a STU and existing service requires the manufacture of
three fly leads and installation of a 2 way splitter.
Installation Steps:
1.
Screw fly lead 1 to the wall plate
2.
Screw the other end of fly lead 1 to the input port of the 2 way splitter
3.
Screw fly lead 2 to output port 1 of the splitter and connect other end to cable F type
input of the STU
4.
Screw fly lead 3 to output port 2 of the splitter and connect the other end to the existing
OB service via an IEC Pal connector.
Figure 21 – Installation of STU
Note: Splitters shall have a port to port isolation of ≥34dB.
For interconnection between other devices refer to the FOXTEL Satellite Installation Manual.
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