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INTRODUCTION

1. Introduction

This document outlines the set-up and operation of the ATX Indoor Video/Audio Inserter System – IVIS.

The IVIS device takes ATX’s Channel Deletion Filters and integrates them with an agile or fixed Video/Audio Modulator 

packaged into an indoor housing. The IVIS device is mainly powered for powering the internal integrated Modulators.
The IVIS device allows the operator to delete one or two RF channels from the Cable TV spectrum and reinsert new 

programming in Analog modulation format on those deleted channel locations. The new channels can be any Video/Audio 

source such as a closed circuit Video Camera or a specialty service that has been demodulated to baseband Audio and 

Video using a Set-Top-Box / Converter / Decoder. The latter example allows the operator to move specialty services from 

higher tiers to the basic service.

The IVIS system can be ordered with fixed or agile modulators. If fixed modulators are ordered then their desired output 

channel in the Cable TV spectrum has to be specified at time of order. For both modulator types (fixed and agile) it has to be 

specified at time of order whether the Cable TV channels are Standard, HRC, or IRC.
The RF channel deletion filter frequencies must be specified at time of order always for both modulator types as the filter is 

not agile.
If an agile modulator is purchased, and the operator needs to change the channel to be deleted, only the channel deletion 

filter must be replaced. The agile modulator will easily tune to the new channel where fixed modulators need to be removed 

from the IVIS chassis and replaced with a modulator that is tuned to the new channel number. The chassis is easily opened 

and allows removal and replacement of the channel deletion filters and/or Video/Audio Modulators.

Each Video/Audio Modulator has one Audio and one Video Input. Those inputs are clearly marked beneath each modulator 

on the IVIS device’s front panel. The Audio deviation, Video depth-of-modulation, RF Output level and Video/Audio Carrier 

Ratio for each modulator can be adjusted from the modulator’s front panel.

Ensure that the Cable System’s Analog Video Carrier levels present at the IVIS device’s input port are between 4dBmV and 

34dBmV. This ensures that the new inserted channels can be adjusted to the same Analog Video Carrier level as the rest of 

the Cable TV spectrum Analog channels passing through the IVIS unit.

          MDU Solutions

®

 – IVIS Indoor Video Insertion System - Instalation & Operation Manual 

1-1

 

CHAPTER 1:  INTRODUCTION

Figure #1:  IVIS Unit

Содержание ivis

Страница 1: ...IVIS Indoor Video Insertion System Installation Operation Manual IVIS ...

Страница 2: ...o change without notice MDU Solutions UCrypt DigiVu and VersAtive Pro are registered trademarks of ATX in the United States and or other countries Products or features contained herein may be covered by one or more U S or foreign patents Adobe Flash Wikipedia and other non ATX product and company names mentioned in this document are the property of their respective companies ...

Страница 3: ...MODULATOR OPERATION 3 1 3 1 Agile Modulator Front Panel Controls 3 1 4 RF LEVEL ADJUSTMENT 4 1 5 SERVICE SUPPORT 5 1 5 1 Contact ATX Networks 5 1 5 2 Warranty Information 5 1 5 3 Safety 5 1 i MDU Solutions IVIS Indoor Video Insertion System Instalation Operation Manual i ...

Страница 4: ...Index of Figures Figures 1 IVIS Unit 1 1 2 Agile Modulator 3 1 3 Functional Schematic 4 1 ii MDU Solutions IVIS Indoor Video Insertion System Instalation Operation Manual ...

Страница 5: ...Standard HRC or IRC The RF channel deletion filter frequencies must be specified at time of order always for both modulator types as the filter is not agile If an agile modulator is purchased and the operator needs to change the channel to be deleted only the channel deletion filter must be replaced The agile modulator will easily tune to the new channel where fixed modulators need to be removed f...

Страница 6: ...1 2 MDU Solutions IVIS Indoor Video Insertion System Instalation Operation Manual CHAPTER 1 INTRODUCTION This page left intentionally blank ...

Страница 7: ...the incoming Cable TV feed to the INPUT port and connect the OUTPUT port to your distribution system Connect Video and Audio signals to one or both if two Video Audio sources present Modulators In case of an Agile Modulator ensure that the Modulator Channel is set properly by checking the displayed Channel number on the Modulator s front panel MDU Solutions IVIS Indoor Video Insertion System Insta...

Страница 8: ...CHAPTER 2 INSTALLATION 2 2 MDU Solutions IVIS Indoor Video Insertion System Instalation Operation Manual This page left intentionally blank ...

Страница 9: ...g or other conditions that would cause the unit to operate on an invalid channel The RF output is switched OFF for flashing ERROR conditions AUDIO Level Control The setting of this screwdriver adjustment determines the aural carrier deviation Clockwise rotation increases the carrier deviation VIDEO Level Control The setting of this screwdriver adjustment determines the video modulation level Clock...

Страница 10: ...3 2 MDU Solutions IVIS Indoor Video Insertion System Instalation Operation Manual CHAPTER 3 AGILE MODULATOR OPERATION This page left intentionally blank ...

Страница 11: ...dB below the Video Carrier If not adjust theA V potentiometer on the Modulator s front panel until the Audio to Video Ratio is set to 15 dB All previous measurements are to be done using a spectrum analyzer or RF signal level meter If using Spectrum Analyzer for measuring Analog and Digital RF Signals Be sure to have taken into account RBW settings and have made corrections to the Spectrum Analyze...

Страница 12: ...CHAPTER 4 RF LEVEL ADJUSTMENT 4 2 MDU Solutions IVIS Indoor Video Insertion System Instalation Operation Manual This page left intentionally blank ...

Страница 13: ...3 Safety IMPORTANT FOR YOUR PROTECTION PLEASE READ THE FOLLOWING WATER AND MOISTURE Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings POWER SOURCES The device should be connected to a power supply only of the type described in the operating instructions or as marked on the device GROUNDING OR POLARIZATION Precautions should be taken so...

Страница 14: ...n Canada Rev 04 16 ANW0781 1 501 Clements Road West Ajax ON L1S 7H4 Canada Tel 1 905 428 6068 Toll Free 1 800 565 7488 Fax 1 905 427 1964 Toll Free Fax 1 866 427 1964 www atxnetworks com support atxnetworks com ...

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