ViaSat VBM-1400 User manual
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Broadband
Modulator
VBM-1400
Installation and
User’s Guide
ViaSat Document Number
1018360
(Rev. 002)
ViaSat, Inc.
6155 El Camino Real
Carlsbad, CA 92009-1699
Tel: (760) 476-2200
Fax: (760) 929-3941
www.viasat.com
Broadband Modulator, VBM-1400
Installation and User’s Guide
Broadband
Modulator
VBM-1400
Installation and User’s
Guide
ViaSat Document Number
1018360
(Rev. 002)
ViaSat, Inc.
6155 El Camino Real
Carlsbad, CA 92009-1699
Tel: (760) 476-2200
Fax: (760) 929-3941
www.viasat.com
REGULATORY COMPLIANCE and NOTICES
FCC Notice
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15, of the
FCC Rules. These limits are designed to provide a reasonable protection against harmful interference when the equipment
is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
Any changes or modifications not expressly approved in writing by the manufacturer could void the user’s authority to
operate the equipment.
CAUTION: Shielded I/O cables must be used and all covers must be in place when operating this equipment.
Canadian Department of Communications compliance statement:
This equipment does not exceed Class A limits per radio noise emissions for digital apparatus set out in the Radio
Interference Regulation of the Canadian Department of Communications. Operation in a residential area may cause
unacceptable interference to radio and TV reception requiring the owner or operator to take whatever steps are necessary to
correct the interference.
Avis de conformite aux normes du ministere des Communications du Canada:
Cet equipment ne dépasse pas les limites de Class A d’émission de bruits radioélectriques pour les appareils numériques
tels que prescrites par le Règlement sur le brouillage radioélectrique etabli par le ministére de Communications du Canada.
L’exploitation faite en milieu résidentiel peut entrainer le brouillage des réceptions radio et télé, ce qui obligerait le
propriétaire ou l’operateur à prendre les dispositions nécessaires pour en éliminer les causes.
Electro-Magnetic Emissions Compliance
The equipment has been tested and is in compliance with the following emissions and immunity requirements:
Emissions:
FCC 15B, Sec. 107, Class “A ” Conducted Emissions
FCC 15B, Sec. 109, Class “A” Radiated Emissions
EN 55022 (1998)A1, Class “A” Conducted Emissions
EN 55022 (1998)A1, Class “A” Telecom Conducted Emissions
EN 55022 (1998)A1, Class “A” Radiated Emissions
EN 61000-3-2 (2000) Power Line Harmonics
EN 61000-3-3 (1995) Power Line Flicker
Immunity:
IEC 61000-4-2 (1995),A1(1998),A2(2000) ESD Immunity
IEC 61000-4-3 (2002),A1(2002) Radio Frequency Immunity
IEC 61000-4-4 (1995)A1(2000),A2(2001) Electrical Fast Transient Immunity
IEC 61000-4-5 (1995),A1(2001) Surge Immunity
IEC 61000-4-6 (1996)A1(2000) RF Common Mode Immunity
IEC 61000-4-8 (1993)A1(2000) Power Frequency Magnetic Field
IEC 61000-4-11(2001) Voltage Dips and Short Interruptions
Safety Compliance
The equipment has been tested and is in compliance with the following safety requirements:
IEC 60950-1 (ed.1) IECEE CB Scheme
COPYRIGHT NOTICE
©Copyright 2004, 2005, ViaSat, Inc. All rights reserved.
Printed in the United States of America
TRADEMARK NOTICE
ViaSat and the ViaSat logo are registered trademarks of ViaSat, Inc. in the U.S. and/or other countries. Other
product names included in this document are trademarks of their respective owners.
DOCUMENTATION NOTICE
The information, specifications, and features contained in this document are subject to change without notice
and should not be construed as a commitment by ViaSat, Inc.
ViaSat, Inc. assumes no responsibility for any errors that may appear in this document nor does it make
expressed or implied warranty of any kind with regard to this material, including, but not limited to, the
implied warranties of merchantability and fitness for a particular purpose. ViaSat, Inc. shall not be liable
for incidental or consequential damages in conjunction with, or arising out of the furnishing, performance, or
use of this document and the program material it describes.
-------------------------------------------------------
VBM-1400 Broadband Modulator Installation and User’s Guide
Rev. 002 1018360 i
Revision History
Revision Rationale Release Date Affected
001 Initial Release 12 October 2004 All pages
002 Added:
Regulatory compliance statements
New remote command - CMD: “SYS_NV x”
Extranet information
Revised Safety Precautions page format.
3 March 2005 All pages
VBM-1400 Broadband Modulator Installation and User’s Guide
1018360 Rev. 002
ii
VBM-1400 Broadband Modulator Installation and User’s Guide
Rev. 002 1018360 iii
Warnings, Cautions, and Notes
Safety precautions or important information found in this document
will normally be presented just prior to the point where the hazard is
likely to be encountered. Symbols used to identify the information are
defined as follows:
Warning This symbol indicates a procedure or practice that, if not correctly
followed, could result in injury, death, or long term health hazard.
Caution This symbol indicates a procedure or practices that, if not correctly
followed, could result in equipment damage, destruction, or make the
equipment not operate properly.
Caution This symbol indicates that electrostatic discharge (ESD) precautions
must be observed or the equipment may be damaged.
Note This symbol indicates information that is important to observe.
General Safety Precautions
General safety precautions are as follows
Warning There are
no user-serviceable parts
inside any of the
equipment in your system.
There are potentially lethal
voltages inside the
equipment. It should only
be opened by a technician
trained and certified to
service ViaSat products.
Warning The
equipment contains a
lithium battery. Danger of
explosion if battery is
incorrectly replaced.
Replace only with the
same or equivalent type
recommended by the
manufacturer. Dispose of
used batteries according
to the manufacturer's
instructions.
VBM-1400 Broadband Modulator Installation and User’s Guide
1018360 Rev. 002
iv
VBM-1400 Broadband Modulator Installation and User’s Guide
Rev. 002 1018360 v
About This Manual
This manual contains information about the VBM-1400 Broadband
Modulator including a General Description, Preparation for Use and
Installation, Initial Set Up and Configuration, Remote Control, General
Theory of Operation, Maintenance Instructions, and Reshipment
instructions.
Appendices provide a VBM-1400 Parameter Worksheet (to be completed
before installation), Installation Checklist, Glossary, Index, and foldout
Drawings.
Obtaining Additional Publications and Information
Additional publications and information including user guides, white
papers, application notes, release notes, SNMP MIB downloads,
software updates, training schedules, and other technical information
may be found on the ViaSat Extranet web site. The Extranet may be
accessed through the ViaSat web site located at this URL:
http://viasat.com/
Customers and ViaSat employees may apply for password access to the
Extranet by clicking on the Customer Login link and following the link
to create a new account.
VBM-1400 Broadband Modulator Installation and User’s Guide
1018360 Rev. 002
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VBM-1400 Broadband Modulator Installation and User’s Guide
Rev. 002 1018360 vii
Table of Contents
1. GENERAL DESCRIPTION.......................................................................................................................................1-1
1.1 INTRODUCTION.......................................................................................................................................................1-1
1.2 EQUIPMENT LIST....................................................................................................................................................1-1
1.3 VBM-1400 SPECIFICATIONS ..................................................................................................................................1-2
1.3.1 VBM-1400 Description..................................................................................................................................1-5
1.3.2 VBM-1400 Front Panel Controls and Indicators..........................................................................................1-6
2. PREPARATION FOR USE AND INSTALLATION...............................................................................................2-1
2.1 INTRODUCTION.......................................................................................................................................................2-1
2.2 TOOLS AND TEST EQUIPMENT................................................................................................................................2-1
2.3 UNPACKING AND INSPECTION ................................................................................................................................2-1
2.4 INSTALLATION .......................................................................................................................................................2-2
2.4.1 VBM-1400 Connections and Descriptions ....................................................................................................2-3
2.4.1.1 VBM-1400 Output Observation..................................................................................................................................2-6
2.4.1.2 Power ..........................................................................................................................................................................2-7
2.4.2 Operation.......................................................................................................................................................2-7
3. INITIAL SET UP AND CONFIGURATION...........................................................................................................3-1
3.1 INTRODUCTION.......................................................................................................................................................3-1
3.2 INITIAL SETUP AND CHECKOUT..............................................................................................................................3-1
3.2.1 Parameters Required Before Configuring the VBM-1400.............................................................................3-1
3.3 TURNING ON AND CONFIGURING THE VBM-1400 USING THE FRONT PANEL........................................................3-1
3.3.1 Modulator Parameters ..................................................................................................................................3-2
3.3.1.1 Symbol Rate................................................................................................................................................................3-2
3.3.1.1.1 Data Rate............................................................................................................................................................... 3-2
3.3.1.2 Code Rate....................................................................................................................................................................3-2
3.3.1.3 Frequency....................................................................................................................................................................3-2
3.3.1.4 TX Power.................................................................................................................................................................... 3-2
3.3.1.4.1 TX Power Detect................................................................................................................................................... 3-3
3.3.1.5 Transmit ......................................................................................................................................................................3-3
3.3.1.6 Spectrum .....................................................................................................................................................................3-3
3.3.1.7 Carrier .........................................................................................................................................................................3-3
3.3.1.8 Symbol Rolloff............................................................................................................................................................3-3
3.3.1.9 Modulation Type.........................................................................................................................................................3-3
3.3.2 Interface Parameters.....................................................................................................................................3-3
3.3.2.1 Interface Type .............................................................................................................................................................3-3
3.3.2.2 Interface MPEG Sync Delete ......................................................................................................................................3-4
3.3.3 Remote Control Parameters..........................................................................................................................3-4
3.3.3.1 RIO Control Enable/Disable........................................................................................................................................ 3-4
3.3.3.2 EIA-485 Parameters.................................................................................................................................................... 3-4
3.3.3.2.1 RS485 Address...................................................................................................................................................... 3-4
3.3.3.2.2 RS485 Format .......................................................................................................................................................3-4
3.3.3.2.3 RS485 Baud........................................................................................................................................................... 3-4
3.3.3.3 EIA-232 Parameters.................................................................................................................................................... 3-4
3.3.3.3.1 RS232 Format .......................................................................................................................................................3-4
3.3.3.3.2 RS232 Baud........................................................................................................................................................... 3-4
3.3.3.4 Ethernet Parameters..................................................................................................................................................... 3-5
3.3.3.4.1 MAC Address........................................................................................................................................................ 3-5
3.3.4 System Common Parameters.........................................................................................................................3-5
3.3.4.1 Faults........................................................................................................................................................................... 3-5
3.3.4.1.1 Major Faults ..........................................................................................................................................................3-5
3.3.4.1.2 Minor Faults.......................................................................................................................................................... 3-5
3.3.4.2 Reference Frequency...................................................................................................................................................3-6
3.3.4.2.1 External Reference ................................................................................................................................................3-6
3.3.4.2.1.1 External Reference Enable/Disable................................................................................................................ 3-6
3.3.4.2.1.2 External Reference Frequency.......................................................................................................................3-6
3.3.4.2.2 Output Reference...................................................................................................................................................3-6
3.3.4.2.2.1 Output Reference Select................................................................................................................................. 3-6
VBM-1400 Broadband Modulator Installation and User’s Guide
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3.3.4.3 Auxiliary Parameters................................................................................................................................................... 3-6
3.3.4.3.1 Revisions............................................................................................................................................................... 3-6
3.3.4.3.1.1 Firmware Revisions .......................................................................................................................................3-6
3.3.4.3.1.2 Hardware Revisions....................................................................................................................................... 3-6
3.3.4.3.1.3 Serial Numbers............................................................................................................................................... 3-6
3.3.4.3.2 Clock..................................................................................................................................................................... 3-7
3.3.4.3.2.1 Time............................................................................................................................................................... 3-7
3.3.4.3.2.1.1 Edit Time................................................................................................................................................ 3-7
3.3.4.3.2.2 Date................................................................................................................................................................ 3-7
3.3.4.3.2.2.1 Edit Day.................................................................................................................................................. 3-7
3.3.4.3.2.2.2 Edit Month.............................................................................................................................................. 3-7
3.3.4.3.2.2.3 Edit Year................................................................................................................................................. 3-7
3.3.4.3.3 Temperature ..........................................................................................................................................................3-7
3.3.4.3.4 Reset......................................................................................................................................................................3-7
3.3.4.3.4.1 Soft Reset.......................................................................................................................................................3-7
3.3.5 Front Panel Parameters................................................................................................................................3-7
3.3.5.1 Front Panel Backlight Level........................................................................................................................................ 3-7
3.3.5.2 Front Panel Backlight Off Timer................................................................................................................................. 3-8
3.3.5.3 Front Panel Lock......................................................................................................................................................... 3-8
3.4 TRANSMITTING AND VERIFYING THE UPLINK SIGNAL............................................................................................3-8
3.5 NORMAL OPERATIONS ...........................................................................................................................................3-8
4. REMOTE CONTROL................................................................................................................................................4-1
4.1 PROTOCOL..........................................................................................................................................................4-1
4.2 MODULATOR COMMANDS .............................................................................................................................4-1
4.2.1 Frequency (MHz)...........................................................................................................................................4-1
4.2.2 Power (-dBm)................................................................................................................................................4-2
4.2.3 Code Rate/Modulation Order........................................................................................................................4-2
4.2.4 Data Rate (Mbps-QUERY ONLY).................................................................................................................4-2
4.2.5 Symbol Rate (MSPS)......................................................................................................................................4-2
4.2.6 Transmit State................................................................................................................................................4-3
4.2.7 Carrier State..................................................................................................................................................4-3
4.2.8 Spectrum State...............................................................................................................................................4-3
4.2.9 Symbol Roll-Off (alpha) ................................................................................................................................4-3
4.3 MODULATOR DATA INTERFACE COMMANDS...........................................................................................4-4
4.3.1 Interface Selection.........................................................................................................................................4-4
4.3.2 MPEG Sync Delete........................................................................................................................................4-4
4.4 SYSTEM COMMON COMMANDS....................................................................................................................4-5
4.4.1 System Soft Reset...........................................................................................................................................4-5
4.4.2 System External Reference Control...............................................................................................................4-5
4.4.3 System External Reference Frequency ..........................................................................................................4-5
4.4.4 System Output Reference Source Select ........................................................................................................4-5
4.4.5 System Firmware Revisions (QUERY ONLY) ...............................................................................................4-6
4.4.6 System Clock..................................................................................................................................................4-6
4.4.7 System Date...................................................................................................................................................4-6
4.4.8 System Defaults .............................................................................................................................................4-7
4.4.9 System Chassis SN.........................................................................................................................................4-7
4.4.10 System Mod Board SN...................................................................................................................................4-7
4.4.11 System MDI Board SN...................................................................................................................................4-7
4.4.12 System RF Board SN .....................................................................................................................................4-8
4.4.13 System Serial Number Dump (QUERY ONLY)..............................................................................................4-8
4.4.14 System RF Board Temperature (QUERY ONLY)..........................................................................................4-8
4.4.15 System MOD Board Temperature (QUERY ONLY)......................................................................................4-8
4.4.16 System Status (QUERY ONLY)......................................................................................................................4-9
4.4.17 System Update...............................................................................................................................................4-9
4.5 HUMAN I/O COMMANDS................................................................................................................................4-10
4.5.1 Front Panel Lockout....................................................................................................................................4-10
4.5.2 Front Panel Backlight Timeout ...................................................................................................................4-10
4.6 REMOTE I/O COMMANDS..............................................................................................................................4-10
VBM-1400 Broadband Modulator Installation and User’s Guide
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4.6.1 EIA-485 Bus Address...................................................................................................................................4-10
4.6.2 EIA-485 Data Format..................................................................................................................................4-11
4.6.3 EIA-485 Data Rate......................................................................................................................................4-11
5. GENERAL THEORY OF OPERATION .................................................................................................................5-1
5.1 POWER DISTRIBUTION............................................................................................................................................5-1
5.2 MONITOR AND CONTROL .......................................................................................................................................5-1
5.3 REFERENCE SIGNAL ...............................................................................................................................................5-2
5.4 SIGNAL FLOW ........................................................................................................................................................5-2
6. MAINTENANCE INSTRUCTIONS.........................................................................................................................6-1
6.1 INTRODUCTION.......................................................................................................................................................6-1
6.2 INSPECTION............................................................................................................................................................6-1
6.2.1 VBM-1400 Chassis Inspection.......................................................................................................................6-1
6.2.2 Inspection of Cable Assemblies and Connectors...........................................................................................6-1
6.3 CLEANING..............................................................................................................................................................6-1
6.3.1 Cleaning VBM-1400 Chassis.........................................................................................................................6-2
6.3.2 Cleaning Connectors.....................................................................................................................................6-2
6.4 GENERAL TROUBLESHOOTING ...............................................................................................................................6-2
6.5 EQUIPMENT TROUBLESHOOTING............................................................................................................................6-2
6.5.1 No Power.......................................................................................................................................................6-3
6.5.2 No Remote Control........................................................................................................................................6-4
6.5.3 No Output Signal from Unit...........................................................................................................................6-5
6.5.4 MAJOR FAULT LED On...............................................................................................................................6-6
6.5.5 MINOR FAULT LED On...............................................................................................................................6-7
6.5.6 No or Incorrect Display.................................................................................................................................6-8
6.5.7 No or Incorrect LED Operation....................................................................................................................6-9
6.6 REMOVAL AND REPLACEMENT ............................................................................................................................6-10
6.6.1 Removing the VBM-1400.............................................................................................................................6-10
6.6.2 Replacing the VBM-1400.............................................................................................................................6-10
6.6.3 Removing and Replacing Cables and Connectors.......................................................................................6-10
7. RESHIPMENT............................................................................................................................................................7-1
7.1 RETURN TO THE FACTORY .....................................................................................................................................7-1
7.2 PACKAGING............................................................................................................................................................7-1
7.3 SHIPPING................................................................................................................................................................7-1
APPENDIX A VBM-1400 PARAMETER WORKSHEET......................................................................................A-1
APPENDIX B INSTALLATION CHECKLIST....................................................................................................... B-1
APPENDIX C GLOSSARY........................................................................................................................................C-1
APPENDIX D INDEX.................................................................................................................................................D-1
APPENDIX E DRAWINGS........................................................................................................................................ E-1
VBM-1400 Broadband Modulator Installation and User’s Guide
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List of Figures
Figure 1-1 Typical BER vs. Eb/No. Performance................................................................................................................1-4
Figure 1-2 VBM-1400..........................................................................................................................................................1-5
Figure 1-3 VBM-1400 Front Panel Controls and Indicators................................................................................................1-6
Figure 2-1 VBM-1400 Installation Location (Typical)........................................................................................................2-2
Figure 2-2 VBM-1400 Rear Panel .......................................................................................................................................2-3
Figure 2-3 VBM-1400 Output Observation Connections.....................................................................................................2-6
Figure 5-1 VBM-1400 Basic Block Diagram.......................................................................................................................5-1
Figure 6-1 No Power............................................................................................................................................................6-3
Figure 6-2 No Remote Control.............................................................................................................................................6-4
Figure 6-3 No Output Signal from Unit ...............................................................................................................................6-5
Figure 6-4 MAJOR FAULT LED On ..................................................................................................................................6-6
Figure 6-5 MINOR FAULT LED On ..................................................................................................................................6-7
Figure 6-6 No or Incorrect Display......................................................................................................................................6-8
Figure 6-7 No or Incorrect LED Operation..........................................................................................................................6-9
Figure FO-1 Front Panel Display Menus Flowchart ..........................................................................................................E-3
List of Tables
Table 1-1 Furnished, Optional, and User Supplied Items.....................................................................................................1-1
Table 1-2 VBM-1400 Specifications....................................................................................................................................1-2
Table 1-3 VBM-1400 Front Panel Controls and Indicators .................................................................................................1-6
Table 2-1 Recommended Installation Tools and Test Equipment........................................................................................2-1
Table 2-2 Rear Panel Connectors.........................................................................................................................................2-4
Table 2-3 DVB/M2P IN (J1) Pin Descriptions ....................................................................................................................2-5
Table 2-4 Ethernet (J3) Pin Descriptions .............................................................................................................................2-5
Table 2-5 ALARM (J4) Pin Descriptions.............................................................................................................................2-6
Table 2-6 REMOTE Connector............................................................................................................................................2-6
Table 3-1 VBM-1400 Set Up Quick Guide and Summary...................................................................................................3-1
Table 6-1 VBM-1400 Maintenance Requirements Summary..............................................................................................6-1
Table 6-2 Fault Symptoms and Cross Reference .................................................................................................................6-2
Table of contents
