GainMaker Amp Setup Guide - CATV, Cheat Sheet of Technical Writing

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GainMaker Broadband Amplifier Platform

System Amplifier Modules and Housing

Installation and Operation Guide

Notices

Trademark Acknowledgments

• Cisco, the Cisco logo, Cisco Systems, the Cisco Systems logo, Scientific Atlanta, GainMaker, and SciCare are trademarks or registered trademarks of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries.
• All other trademarks mentioned in this document are property of their respective owners ..

Publication Disclaimer

Cisco Systems, Inc., assumes no responsibility for errors or omissions that may appear in this publication. We reserve the right to change this publication at any time without notice. This document is not to be construed as conferring by implication, estoppel, or otherwise any license or right under any copyright or patent, whether or not the use of any information in this document employs an invention claimed in any existing or later issued patent.

Copyright

© 2008 Cisco Systems, Inc. All rights reserved. Printed in the United States of America.

Information in this publication is subject to change without notice. No part of this publication may be reproduced or transmitted in any form, by photocopy, microfilm, xerography, or any other means, or incorporated into any information retrieval system, electronic or mechanical, for any purpose, without the express permission of Cisco Systems, Inc.

Contents

593161 Rev F iii

Safety Precautions .....................................................................................................................................vi

Compliance .............................................................................................................................................. viii

Preface ....................................................................................................................................................... ix

Chapter 1 Introducing the GainMaker System Amplifier

Overview........................................................................................................................1- Description of the GainMaker System Amplifier.....................................................1- Accessories .....................................................................................................................1- Illustrations ....................................................................................................................1- Block Diagrams .............................................................................................................1-

Chapter 2 Installing and Configuring the GainMaker System Amplifier

Overview........................................................................................................................2-

Section A - Installing the Housing Overview........................................................................................................................2- Before You Begin...........................................................................................................2- Opening the Housing ...................................................................................................2- Closing the Housing .....................................................................................................2- Upgrading Existing Housing Seizures.......................................................................2- Upgrading an Existing Housing Lid ..........................................................................2- Installing the Power Supply ......................................................................................2- Attaching the Coaxial Connectors ............................................................................2- Installing the Housing................................................................................................2-

Section B - Configuring the GainMaker Amplifier Module Overview......................................................................................................................2- Installing Accessories .................................................................................................2-

Section C - Installing the GainMaker Amplifier Module Overview......................................................................................................................2- Installing the Amplifier Module in the Housing....................................................2- Removing the Amplifier Module from the Housing .............................................2- Installing and Removing AC Shunt Power Directors............................................2-

Contents , Continued

593161 Rev F v

Chapter 5 Customer Information

Overview........................................................................................................................5- Customer Support.........................................................................................................5- How to Return Products ..............................................................................................5-

Appendix A Technical Information

Overview.......................................................................................................................A- “Linear” Tilt Charts .....................................................................................................A- Forward Equalizer Charts...........................................................................................A- Trim Network Response Plots ..................................................................................A- Reverse Equalizer Charts..........................................................................................A- GainMaker Amplifier Accessory Part Numbers ...................................................A-

Glossary ...................................................................................................................................... Glossary-

Index ..................................................................................................................................................Index-

vi 593161 Rev F

Safety Precautions

Protect Yourself From Electric Shock and Your System From Damage!

This product complies with international safety and design standards.

• Observe all safety procedures that appear throughout this guide, and the safety symbols that are affixed to this product.
• If circumstances impair the safe operation of this product, stop operation and secure this product against further operation.

Safety Symbols

Avoid personal injury and product damage! Do not proceed beyond any symbol until you fully understand the indicated conditions!

You will find this symbol in the literature that accompanies this product. This symbol indicates important operating or maintenance instructions. You may find this symbol affixed to this product. This symbol indicates a live terminal; the flash points to the terminal device. You may find this symbol affixed to this product. This symbol indicates a protective ground terminal. You may find this symbol affixed to this product. This symbol indicates excessive or dangerous heat.

Power

Important! The power shunts must be removed before installing the unit into a powered housing. With the shunts removed, it reduces the power surge to the components and F-connectors.

CAUTION: RF connectors and housing seizure assemblies can be damaged if shunts are not removed from the amplifier before installing or removing the amplifier module from the housing.

Continued on next page

viii 593161 Rev F

Compliance

Electrical Safety

EN 50083-1/A2:1998 and IEC 60065:1998/EN 60065:1998: A notified body has issued a Certificate of Compliance according to the Low Voltage Directive of February 19,

1973. A sample of this equipment has been tested and found to be in conformity with EN 50083-1/A2:1998 and IEC 60065:1998/EN 60065:1998. Important: The installer should review EN 50083-1/A2:1998 and install this product per EN 50083-1/A2:1998.

Electromagnetic Compatibility

EN 50083-2/A1: 1998: According to the provisions of the EMC Directive of May 3, 1989, a sample of this equipment has been tested and found to be in conformity with EN 50083-2/A1: 1998. FCC Part 76 Subpart K: This equipment has been tested and found to comply with the limits for Part 76 of the FCC Rules. These limits provide reasonable protection against harmful interference when operating this equipment in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if the user does not install and use this equipment according to the instruction manual, it may cause harmful interference to radio communications.

CAUTION:

Any changes or modification to this equipment not expressly approved by Scientific-Atlanta can void the user’s authority to operate this equipment.

Environmental Standard

IEC 529/EN 60529-A1: 1992: A sample of this equipment has been tested according to IEC 529/EN 60529-A1: 1992 and found to provide a degree of protection equal to IP

593161 Rev F ix

Preface

About this Guide

Introduction

This guide provides the needed technical information to install and configure the GainMaker®^ System Amplifier modules and housings.

Who Should Read This Guide

This guide is intended for service personnel who are responsible for installing and maintaining GainMaker products. The personnel should have experience with hardware component installation.

In This Guide

This guide is divided into the following chapters and appendix.

Topic See Page

Chapter 1 - Introducing the GainMaker System Amplifier 1- Chapter 2 - Installing and Configuring the GainMaker System Amplifier

Chapter 3 - Balancing and Setup of the GainMaker System Amplifier 3- Chapter 4 – Basic Troubleshooting 4- Chapter 5 – Customer Information 5- Appendix A – Technical Information A-

Related Publications

Refer to the following Scientific-Atlanta publications for more information about GainMaker amplifiers.

• GainMaker Broadband Amplifier Platform Line Extender Modules and Housings Installation and Operation Guide , part number 593057
• GainMaker Amplifier AGC Module Replacement Installation Instructions, part number 748051

593161 Rev F Introducing the GainMaker System Amplifier 1-

Chapter 1

Introducing the GainMaker System Amplifier

Overview

Introduction

The GainMaker®^ Broadband Amplifier Platform includes a variety of RF amplifiers that address the divergent needs of today’s broadband networks. All GainMaker amplifiers provide superior 2-way performance and reliability combined with a user-friendly layout.

Chapter Contents

This chapter introduces you to the GainMaker®^ Broadband Amplifier Platform and contains the following topics.

Topic See Page

Description of the GainMaker System Amplifier 1-

Accessories 1-

Illustrations 1-

Block Diagrams 1-

1-2 Introducing the GainMaker System Amplifier 593161 Rev F

Description of the GainMaker System Amplifier

Introduction

The GainMaker System Amplifier is available in the following forward bandwidth.

• 870 MHz The GainMaker System Amplifier is available in the following amplifier types.
• High Gain Dual
• Low Gain Dual
• Unbalanced Triple
• High Gain Balanced Triple

The GainMaker System Amplifier is available in the following reverse path splits.

• 40/52 MHz
• 42/54 MHz
• 55/70 MHz
• 65/86 MHz

GainMaker Amplifier Characteristics

The GainMaker amplifier modules have the following characteristics.

• -20 dB test points, located electrically outside of the diplex filter, provide testing of forward and reverse input and output signals without disrupting normal operation
• Backward compatibility with System Amplifier II and System Amplifier III housing bottoms provides reduced upgrade costs
• Housing lids offered with or without external test point access
• Room for optional status monitoring transponder in housing lid
• Direct module plug-in to the housing provides superior amplifier heat sinking
• Symmetrical housing and modules provide convenient mounting − Reversible amplifier module due to diagonally positioned input and main output ports enabling installation of street-side housing lid access
• Improved AC circuitry provides 15 A of steady state current capability that is able to withstand 25 A of peak current (for a maximum of 2 hours)
• Surge Resistant Circuitry provides improved resistance to high voltage transients
• Coated housing protects outdoor equipment in coastal areas and other corrosive environments. Uncoated housing also available
• Input and output reverse pad locations to increase flexibility in reverse path design and alignment Continued on next page

1-4 Introducing the GainMaker System Amplifier 593161 Rev F

Description of the GainMaker System Amplifier, Continued

Configuration

All GainMaker System Amplifiers are configured with the following.

• Diplex Filters
• Reverse Amplifier
• Forward Interstage Equalizer
• Forward Interstage and Output Attenuator Pads

Test Points

There are nine RF and four voltage test points on the GainMaker System Amplifier.

AC Shunt Power Directors

The GainMaker System Amplifier has four AC shunt power directors located near the ports of the amplifier which are used to direct AC current to and from the amplifier input and output ports.

GainMaker Amplifier Ordering

For the latest available amplifier ordering information, contact your Scientific- Atlanta customer representative, or visit the Scientific-Atlanta website.

Note: A station consists of a configured amplifier module with a complete housing, power supply, and wiring harness.

593161 Rev F Introducing the GainMaker System Amplifier 1-

Accessories

Introduction

The GainMaker System Amplifiers are equipped to work with the following customer installable and miscellaneous accessories.

Customer Installable Accessories for All Amplifiers

The following table lists the customer installable accessories and their part number.

Note: All GainMaker System Amplifier accessories are unique to the GainMaker Broadband Amplifier Platform product line.

Accessory Part Number

Attenuator pads 589693 through 589734 0 dB through 20.5 dB in 0.5 dB Increments

75 ohm terminator 589735 In Attenuator Pad Package

Forward Equalizer

Jumper 589260

870 MHz 589261 through 589278 1.5 dB through 27 dB in 1.5 dB Increments

750 MHz 589306 through 589323 1.5 dB through 27 dB in 1.5 dB Increments

Inverse Equalizer 750 MHz/870 MHz

589325 through 589334 1.5 dB through 15 dB in 1.5 dB Increments Reverse Equalizer Jumper 712719 40 MHz 42 MHz

589628 through 589639 1 dB through 12 dB in 1 dB Increments 55 MHz 712679 - 712690 1 dB through 12 dB in 1 dB Increments 65 MHz 589736 through 589747 1 dB through 12 dB in 1 dB Increments

Continued on next page

593161 Rev F Introducing the GainMaker System Amplifier 1-

Illustrations

System Amplifier Test Points

The following diagram shows the test points of the High Gain Dual amplifier module.

Notes:

• The test point locations are the same for all GainMaker System Amplifiers.
• Test points shown are -20 dB, except for AC and DC test points.

FWD MAINOUT PAD

6

6.5 4.^

6

6

FWDINPUT

AUX

AUX

MAIN

REV

REV IN-20dB

REV OUT-20dB

REV AUX2IN PAD REV AMPIN -2dB

FWD IN-20dBREVOUTPAD REV EQ

FWD INPAD

750 MHz870 MHz

FWD IN EQ

AC TEST

DC TEST

HIGH GAIN DUAL TYPE 2

FWD OUT& REV INJ-20dB

FWD

REVFWD

REVFWD

FWD HPF/EQ BODE

SWITCH

FROMSTATMON TOSTATMON

6

PAD^ I/S MANUAL BACKOFF AGC PAD

S1 12 3

FWDAUX1OUT PAD SYSTRIM AGCGAIN

FWD OUT& REV INJ-20dB REV IN-20dB

FWD OUT& REV INJ-20dB REV IN-20dB

I/S EQ SIGNALAUXDIR AUX THERMALAGC AUX

40 / 5242 / 5455 / 70 65 / 86

REV AUX1IN PAD REV MAININ PAD

S1 SWITCH FUNCTIONSSET UP MODEIF AGC INSTALLED AGC THERM 1 MAN 2 ON 3 THERMAL COMP MODEIF NO AGCAMP +COAX 3

AMPONLY 1 OFF 2

REV

Reverse Output Test Point

Aux Reverse Input Test Point

Main Reverse Input Test Point

Aux1 Forward Output and Reverse Injection Test Point

Main Forward Output and Reverse Injection Test Point

Forward Input Test Point

Aux Reverse Input Test Point

Aux2 Forward Output and Reverse Injection Test Point

AC Test Point

DC Test Point T

High Gain Dual and Low Gain Dual Accessories

The following diagram shows the accessory locations of the High Gain Dual amplifier module. Note: The accessory locations are the same for the High Gain Dual and Low Gain Dual GainMaker System Amplifiers.

FWD MAINOUT PAD

6

6.5 4.^

6

6

FWDINPUT

AUX

AUX

MAIN

REV

REV IN-20dB

REV OUT-20dB

REV AUX2IN PAD REV AMPIN -2dB

FWD IN-20dBREVOUTPAD REV EQ

FWD INPAD

750 MHz870 MHz

FWD IN EQ

AC TEST

DC TEST

HIGH GAIN DUAL TYPE 2

FWD OUT& REV INJ-20dB

FWD

REVFWD

REVFWD

FWD HPF/EQ BODE

SWITCH

FROMSTATMON TOSTATMON

6

PAD^ I/S MANUAL BACKOFF AGC PAD

S1 12 3

FWDAUX1OUT PAD SYSTRIM AGCGAIN

FWD OUT& REV INJ-20dB REV IN-20dB

FWD OUT& REV INJ-20dB REV IN-20dB

I/S EQ SIGNALAUXDIR AUX THERMALAGC AUX

40 / 5242 / 5455 / 70 65 / 86

REV AUX1IN PAD REV MAININ PAD

S1 SWITCH FUNCTIONSSET UP MODEIF AGC INSTALLED AGCON THERM 1 MAN 2 3 THERMAL COMP MODEIF NO AGCAMP +COAX AMPONLY 1 OFF 2 3

REV

Reverse Output Pad

Forward Input EQ

Reverse Aux 1 Input Pad

AGC Gain Adjust

Reverse EQ

Interstage EQ Manual Backoff Potentiometer

Forward Input Pad

T

AGC Pad Reverse Main Input Pad

Forward Main Output Pad

Forward Aux Output Pad

Reverse Aux 2 Input Pad

System Trim

Interstage Pad

Aux Signal Director

Switch 1 (Multifunction Switch)

Continued on next page

1-8 Introducing the GainMaker System Amplifier 593161 Rev F

Illustrations, Continued

Unbalanced Triple Accessories

The following diagram shows the accessory locations of the Unbalanced Triple amplifier module.

T

6

1.75 4.5^ 3.

6

6

FWDINPUT

AUX

AUX

MAIN REV IN-20dB

REV OUT-20dB

REV AUX2IN PAD AUX2FWDOUT PAD REV AMP IN -20dB

FWD IN-20dBREVOUTPAD REV EQ

FWD INPAD

750 MHz870 MHz

FWD IN EQ

ACTEST

TESTDC

UNBALANCED TRIPLE TYPE 1

& REV INJFWD OUT-20dB

REVFWD

FWDREV FWDREV

FWD BODE

HPF/EQ

SWITCH

FROMSTATMON TOSTATMON

6 I/SPAD

MANUALBACKOFF

AGC PAD

S1 12 3

FWDAUX1OUT PAD

AGCGAIN

& REV INJFWD OUT-20dB REV IN-20dB

FWD OUT& REV INJ-20dB REV IN-20dB

SYS TRIM

THERMALAGC I/S EQ

40 / 5242 / 5455 / 70 65 / 86

REV AUX1IN PAD REV MAININ PAD

S1 SWITCH FUNCTIONSSET UP MODEIF AGC INSTALLED AGCON THERM 1 MAN 2 3 THERMAL COMP MODEIF NO AGCAMP +COAX ONLYAMP 1 OFF 2 3

REV

Reverse Output Pad

Forward Input EQ

Reverse Aux 1 Input Pad

Forward Aux 1 Output Pad

AGC Gain Adjust

Reverse EQ

Manual Backoff Potentiometer

Forward Input Pad

AGC Pad Reverse Main Input Pad

Interstage Pad

System Trim

Reverse Aux 2 Input Pad

Interstage EQ

Switch 1 (Multifunction Switch)

Forward Aux 2 Output Pad

High Gain Balanced Triple Accessories

The following diagram shows the accessory locations of the High Gain Balanced Triple amplifier module.

6

6

FWDINPUT

AUX

REV

REV IN-20dB

REV OUT-20dB

REV AUX2IN PAD REV AMPIN -2dB

FWD IN-20dBREVOUTPAD REV EQ

FWD INPAD

750 MHz870 MHz

FWD IN EQ

TESTAC

DC TEST

BALANCED TRIPLE

FWD OUT& REV INJ-20dB

FWD

REVFWD

SWITCH

FROMSTATMON

THERMALAGC

40 / 5242 / 5455 / 70 65 / 86

1.25^ FWDMAINOUTPAD

4.5 3.

AUX

MAIN

REVFWD

FWD HPF/EQ BODE

TOSTATMON

6

PAD^ I/S MANUAL BACKOFF AGC PAD

S1 12 3

AUX1FWDOUT PAD

SYSTRIM AGCGAIN

FWD OUT& REV INJ-20dB REV IN-20dB

FWD OUT& REV INJ-20dB REV IN-20dB

I/S EQ

REV AUX1IN PAD REV MAININ PAD

S1 SWITCH FUNCTIONSSET UP MODEIF AGC INSTALLED AGCON THERM 1 MAN 2 3 THERMAL COMP MODEIF NO AGCAMP +COAX AMPONLY 1 OFF 2 3

REV

T

Reverse Output Pad

Forward Input EQ

Reverse Aux 1 Input Pad

AGC Gain Adjust

Reverse EQ

Interstage EQ

Interstage Pad

Manual Backoff Potentiometer

Forward Input Pad

AGC Pad Reverse Main Input Pad

Forward Main Output Pad

Forward Aux 1 Output Pad

Reverse Aux 2 Input Pad

System Trim

Switch 1 (Multifunction Switch)

Forward Aux 2 Output Pad