ComStream ABR200 Digital Audio Broadcast Receiver Installation / Operation Guide
Download User Manual for Radyne ComStream ABR200 Digital Audio Broadcast Satellite Receiver [200 pages CPN 01-0211-401 Rev. F 08/95 1995 pdf/zip]
Satellites have proven to be a reliable method of communication for distribution of CD-quality digital audio. The Integrated Digital Audio Distribution Network, of which the ABR200 is a key component, sets a new worldwide standard for digital audio distribution.
The unique capabilities of the ComStream digital audio system allow a network to start out small (offering a single monaural or stereo channel) and grow to a larger multichannel system without replacement of receiver hardware. Fast, easy selection of audio channels can be made either at the receiver or at the studio uplink.
The combination of ComStream modem technology and the latest digital audio compression technology (ISO/MPEG Layer II/IIA) achieves significant satellite savings (35-65%) when compared to alternative distribution networks. The ComStream digital audio distribution system also provides asynchronous data distribution and relay contact closures for control of external station equipment.
Welcome to the ComStream world of satellite-based communication systems and networks. This guide is your source book for using ComStream’s ABR200 Audio Broadcast Receiver. It describes the installation, operation, and performance specifications of this product.
The chapters in this guide provide step-by-step instructions for a variety of tasks and activities, including unpacking, setting up, mounting, and operating the ABR200 Audio Broadcast Receiver. The chapters also provide an overview of system operations, as well as technical specifications and troubleshooting procedures.
This guide groups information and procedures together by the types of activities and tasks you will perform when working with the ABR200 Audio Broadcast Receiver. This guide contains seven chapters and eight appendices. These chapters and appendices are described in detail below.
If you are new to satellite communications or are unfamiliar with either ComStream products or the ABR200, you should read the following chapters before unpacking or installing this product:
– Chapters 1 and 2 for an overview of the ABR200
– Chapter 4 for a full set of ABR200 installation procedures
– Chapters 5 and 6 for remote monitor and control operation, maintenance, and troubleshooting
If you are an experienced user familiar with the ABR200 and other ComStream products, you may wish to begin with:
– Chapter 1 for an overview of the ABR200
– Chapter 3 for the quick installation procedure
– Other chapters as needed
The following detailed descriptions of each chapter and appendix are provided to help you quickly and easily locate the information you need.
CHAPTER 1: OVERVIEW
This chapter provides an overview of a typical satellite digital audio distribution network as well as an overview of the ABR200 audio broadcast receiver.
CHAPTER 2: FUNCTIONAL DESCRIPTION AND THEORY OF OPERATION
Chapter 2 provides functional descriptions and the operational theory for the basic components of the ABR200 receiver system.
CHAPTER 3: QUICK INSTALLATION
This chapter provides quick installation and startup instructions for experienced users who are familiar with satellite communications equipment.
CHAPTER 4: FULL INSTALLATION AND STARTUP
Chapter 4 describes the steps necessary to install and start up a complete ABR200 Audio Broadcast Receiver station. It presents instructions on how to install and align the antenna, install the ABR200, and start up the receiver system.
CHAPTER 5: REMOTE MONITOR AND CONTROL OPERATION
This chapter details the remote control operation of the receiver.
Commands are input by the user and the receiver indicates current status, errors, or faults. This chapter:
– Describes the ABR200 command syntax
– Groups commands by function
– Presents errors codes
– Provides an alphabetical listing of all ABR200 commands and codes
CHAPTER 6: MAINTENANCE AND TROUBLESHOOTING
Chapter 6 provides an alphabetical listing of key performance monitoring commands and the fault conditions that can occur with the ABR200. These listings also provide a detailed description of each command and fault condition.
This chapter also presents information that can help troubleshoot any problems that can occur with the ABR200.
CHAPTER 7: TECHNICAL SPECIFICATIONS AND PORT INFORMATION
Chapter 7 lists all of the technical specifications for the following items:
– LNB downconverter
– L-band demodulator
– Audio performance
– All ABR200 ports
– Control channel
– Monitor and control
APPENDIX A: INTERFACE PINOUTS
This appendix describes the pinouts and their function for each connector used with the ABR200.
APPENDIX B: TELEPHONE MODEM OPERATION
The ABR200 can be controlled and operated from a remote location by connecting the receiver to the public telephone network using the ComStream approved Hayes-compatible modem (CPN 30-0120-194).
This appendix provides the necessary details for configuring the telco modem and connecting it to the ABR200.
APPENDIX C: INTERFACILITY LINK (IFL) CABLE CHARACTERISTICS AND PREPARATION
Appendix C describes the characteristics of the IFL cable and presents the cable specifications and the vendors that supply the cables used for the ABR200. In addition, this appendix provides step-by-step instructions on how to prepare the IFL cable.
APPENDIX D: ANTENNA INSTALLATION (PRODELIN)
This appendix discusses the assembly and setup of the optional Prodelin antenna system for use with the ABR200. If another antenna system is being used, the assembly and setup instructions for that system should be followed.
APPENDIX E: ANTENNA AIMING AND PEAKING
This appendix describes the activities necessary to:
– Point the ABR200 receive-only antenna at the appropriate satellite
– Acquire an out-route carrier
– Perform antenna peaking adjustments
APPENDIX F: SOFTWARE REVISION HISTORY
Appendix F provides a summary of the ABR software revisions. There are two different types of software within the ABR200 unit: control processor software and audio decoder software. The control software can be updated over the satellite from the uplink using a network control computer. The audio decoder software can be updated only at ComStream by physically replacing its EPROM.
Any time a receiver is serviced at ComStream, the software is updated to the latest revision level.
APPENDIX G: VERSION 1.37 AND 1.38 CHANGES
Appendix G is for customers who have version 1.37 or 1.38. Version 1.37 mainly provides the terrestrial backlink (TB) feature. This appendix explains the TB functionality as well as the commands that were added or modified with versions 1.37 and 1.38.
APPENDIX H: TROUBLESHOOTING FLOWCHART
Appendix H provides a quick reference, troubleshooting flowchart to help you diagnose and correct minor problems in the unlikely event that you experience difficulties with your ABR200. This chart should be used in conjunction with the information provided in the Troubleshooting section of Chapter 6: Maintenance and Troubleshooting.