Cisco GS7000 Istruzioni operative

Cisco GS7000 Super High Output Intelligent Node Installation and

Operation Guide

First Published: 2018-03-23

Americas Headquarters

Cisco Systems, Inc.

170 West Tasman Drive

San Jose, CA 95134-1706

USA

http://www.cisco.com

Tel: 408 526-4000

800 553-NETS (6387)

Fax: 408 527-0883

CONTENTS

Preface

Preface vii

For Your Safety vii

Explanation of Warning and Caution Icons vii

Important viii

Important Safety Instructions viii

Read and Retain Instructions viii

Follow Instructions and Heed Warnings viii

Terminology viii

Electric Shock Hazard ix

Equipment Placement ix

Product Ratings ix

Strand (Aerial) Installation x

Pedestal, Service Closet, Equipment Room or Underground Vault Installation x

Connection to Network Power Sources x

AC Power Shunts xi

Equipotential Bonding xii

General Servicing Precautions xiii

Electrostatic Discharge xiv

Batteries xiv

Safety xiv

Disposal xiv

Modifications xv

Accessories xv

Electromagnetic Compatibility Regulatory Requirements xv

EMC Compliance Statements xv

Laser Safety xvi

Warning: Radiation xvi

Cisco GS7000 Super High Output Intelligent Node Installation and Operation Guide

iii

Warning: Fiber Optic Cables xvii

Safe Operation for Software Controlling Optical Transmission Equipment xvii

Laser Warning Labels xvii

Location of Labels on Equipment xix

CHAPTER 1

General Information 1

Physical Description 1

Functional Description 3

Node Inputs/Outputs Diagram 4

Module Functional Description 4

Amplifier Output Linear Tilt Chart 5

Ordering Information 6

CHAPTER 2

Theory of Operation 7

System Diagrams 8

Forward Path 8

Forward Path Signal Routing 8

Reverse Path 9

Reverse Path Signal Routing 9

Spectrum Capture 10

Power Distribution 10

RF Amplifier Module 10

AGC 11

Auto-setup 11

Optical Interface Board 11

Intelligent Remote PHY Device 12

Power Supply Module 12

Node Power Limitations 13

CHAPTER 3

Installation 15

Tools and Test Equipment 15

Node Fastener Torque Specifications 16

Node Housing Ports 16

Strand Mounting the Node 17

Pedestal or Wall Mounting the Node 20

Cisco GS7000 Super High Output Intelligent Node Installation and Operation Guide

Contents

Fiber Optic Cable Installation 21

Color Code 22

Fiber Management System 22

Install Fiber Optic Cable 23

RF Cable Installation 27

Trimming the Center Conductor 27

Trimming Using the Integrated Cradle 27

Trimming Using the Strip Line Mark 28

Connecting the RF Cables to the Node Housing 29

Applying Power to the Node 29

Node Powering Procedure 30

Voltage Check Procedure 31

CHAPTER 4

Setup and Operation 33

CHAPTER 5

Maintenance 35

Opening and Closing the Housing 35

Opening the Housing 35

Closing the Housing 35

Preventative Maintenance 36

Schedule 36

Visual Inspection 37

Cleaning 38

Consumable Materials 38

Procedure 38

Removing and Replacing Modules 39

Module Replacement Procedure 39

Diplexers and Trim modules 40

RF Amplifier Assembly Replacement Procedure 40

Care and Cleaning of Optical Connectors 42

Recommended Equipment 43

Tips for Optimal Fiber-Optic Connector Performance 43

To Clean Optical Connectors 43

Connectors and Bulkheads 44

Cleaning Connectors 44

Cisco GS7000 Super High Output Intelligent Node Installation and Operation Guide

Contents

Cleaning Bulkheads 45

Verifying Equipment Operation 46

CHAPTER 6

Troubleshooting 47

OIB 47

Troubleshooting the node 48

APPENDIX A

Glossary 51

Cisco GS7000 Super High Output Intelligent Node Installation and Operation Guide

Contents

Preface

•For Your Safety, page vii

•Important Safety Instructions, page viii

•Laser Safety, page xvi

•Laser Warning Labels, page xvii

For Your Safety

Explanation of Warning and Caution Icons

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

the indicated conditions.

The following warning and caution icons alert you to important information about the safe operation of this

product:

You may find this symbol in the document that accompanies this product. This

symbol indicates important operating or maintenance instructions.

You may find this symbol affixed to the product. This symbol means electric

shock hazard. This symbol indicates a live terminal where a dangerous voltage

may be present; the tip of the flash points to the terminal device.

You may find this symbol affixed to the product. This symbol indicates a

protective ground terminal.

You may find this symbol affixed to the product. This symbol indicates a chassis

terminal (normally used for equipotential bonding).

You may find this symbol affixed to the product. This symbol warns of a

potentially hot surface.

Cisco GS7000 Super High Output Intelligent Node Installation and Operation Guide

vii

You may find this symbol affixed to the product and in this document. This

symbol indicates an infrared laser that transmits intensity-modulated light and

emits invisible laser radiation or an LED that transmits intensity-modulated light.

This symbol means WARNING/CAUTION –read instruction.

This symbol means a.c. (alternating current).

Important

Please read this entire guide. If this guide provides installation or operation instructions, give particular

attention to all safety statements included in this guide.

Important Safety Instructions

Read and Retain Instructions

Carefully read all safety and operating instructions before operating this equipment, and retain them for future

reference.

Follow Instructions and Heed Warnings

Follow all operating and use instructions. Pay attention to all warnings and cautions in the operating instructions,

as well as those that are affixed to this equipment.

Terminology

The terms defined below are used in this document. The definitions given are based on those found in safety

standards.

•Service Personnel - The term service personnel applies to trained and qualified individuals who are

allowed to install, replace, or service electrical equipment. The service personnel are expected to use

their experience and technical skills to avoid possible injury to themselves and others due to hazards

that exist in service and restricted access areas.

•User and Operator - The terms user and operator apply to persons other than service personnel.

•Ground(ing) and Earth(ing) - The terms ground(ing) and earth(ing) are synonymous. This document

uses ground(ing) for clarity, but it can be interpreted as having the same meaning as earth(ing).

Cisco GS7000 Super High Output Intelligent Node Installation and Operation Guide

viii

Preface

Important

Electric Shock Hazard

This equipment meets applicable safety standards.

To reduce risk of electric shock, perform only the instructions that are included in the operating instructions.

Refer all servicing to qualified service personnel only.

Warning

Electric shock can cause personal injury or even death. Avoid direct contact with dangerous voltages at all

times.

Know the following safety warnings and guidelines:

•Only qualified service personnel are allowed to perform equipment installation or replacement.

•Only qualified service personnel are allowed to remove chassis covers and access any of the components

inside the chassis.

Equipment Placement

Avoid personal injury and damage to this equipment. An unstable mounting surface may cause this

equipment to fall.

Warning

To protect against equipment damage or injury to personnel, comply with the following:

•Install this equipment in a restricted access location (access restricted to service personnel).

•Make sure the mounting surface or rack is stable and can support the size and weight of this equipment.

Product Ratings

•Electrical Ratings: quasi-square or sinusoidal wave 45 –90 V, 50 –60 Hz, max. pass-through current

15 A, max. surge current 25 A, internal power supply max. 185 W.

•Ambient temperature range outside the node must be maintained between -40°C and +60°C (-40°F to

140°F).

•Storage temperature range of the EDR must be maintained between -40°C to +85°C (-40°F to 185°F).

•Humidity range must be maintained between 5% to 95% non-condensing before installation of the EDR

Digital Return module(s).

•Max. altitude: <2000 m.

•Protection Grade: IP68.

Cisco GS7000 Super High Output Intelligent Node Installation and Operation Guide

Preface

Electric Shock Hazard

•Laser Class: Class 1M.

Strand (Aerial) Installation

Be aware of the size and weight of strand-mounted equipment during the installation operation.

Ensure that the strand can safely support the equipment’s weight.

Caution

Pedestal, Service Closet, Equipment Room or Underground Vault Installation

Avoid the possibility of personal injury. Ensure proper handling/lifting techniques are employed when

working in confined spaces with heavy equipment.

Warning

•Ensure this equipment is securely fastened to the mounting surface or rack where necessary to protect

against damage due to any disturbance and subsequent fall.

•Ensure the mounting surface or rack is appropriately anchored according to manufacturer’s specifications.

•Ensure the installation site meets the ventilation requirements given in the equipment’s data sheet to

avoid the possibility of equipment overheating.

•Ensure the installation site and operating environment is compatible with the equipment’s International

Protection (IP) rating specified in the equipment’s data sheet.

Connection to Network Power Sources

Refer to this equipment’s specific installation instructions in this manual or in companion manuals in this

series for connection to network ferro-resonant AC power sources.

Unit is intended to be installed, operated and maintained by trained personnel, in accordance with the local

and national regulations.

The unit is intended to be powered from the secondary circuit of an APPROVED/CERTIFIED power

source with adequate isolation (reinforced or double called out in the applicable standard) between mains and

secondary circuit.

Use suitably rated CERTIFIED/APPROVED CATV Cable suitable for outdoor use rated VW-1 or FT-1

or better.

Cisco GS7000 Super High Output Intelligent Node Installation and Operation Guide

Preface

Strand (Aerial) Installation

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