ADC CX DS3 58G User Manual

WaveNet Link CX User Manual

(FCC Certified Version)

Part Number 100757-001

5/02 Version A

The products described in this document are products of interWAVE Communications, Inc. or its licensers. No part of this document may be photocopied, reproduced, translated, transferred, disclosed or otherwise provided to third parties without the prior written consent of an officer of interWAVE Communications, Inc.

This document applies to the interWAVE Communications, Inc. release of the WaveNet Link product line and to all subsequent versions and releases of the hardware or software unless otherwise indicated in a new version or an update package for this edition.

Publications requests should be addressed to your local sales support office.

interWAVE Communications, Inc. reserves the right to make changes to any products described herein at any time without notice. interWAVE Communications, Inc. does not assume any responsibility or liability arising out of the application or use of any product described herein, except as expressly agreed to in writing by interWAVE Communications, Inc. nor does the purchase or use of a product from interWAVE Communications, Inc. convey a license under any patent rights, copyrights, trademark rights, or any other of the intellectual property rights of interWAVE Communications, Inc. or third parties.

Use, duplication, or disclosure by the U.S. Government is subject to restrictions of FAR 52.227-14 (g) (2) (6/87) and FAR 52.227-19 (6/87), or DFAR 252.227-7015 (b) (6/95) and DFAR 227.7202-3 (a).

The software described in this document is furnished under a license agreement or nondisclosure agreement. The software may be used or copied only in accordance with the terms of the agreement. It is a violation of interWAVE Communications, Inc. proprietary rights to copy the software on any medium except as specifically allowed in the license or nondisclosure agreement. interWAVE and interWAVE Communications, Ltd. hold the following United States Patents: No. 5,577,029, No. 5,654,968, No. 5,682,403, No. 5,721,735, No. 5,734,699, No. 5,734,979, No. 5,761,195, No. 5,781,582, No. 5,818,824, No. 5,842,138, No. 5,887,256, No. 5,953,651, No. 5,957,464, No. 5,999,813, No. 6,070,071, No. 6,078,823, No. 6,081,716, No. 6,101,400, No. 6,169,907, No. 6,173,177, No. 6,212,395, No. 6,269,255, No. USP D 391,967, No. USP D 391,968, No. USP D 397,693.

Trademark Acknowledgment

interWAVE, WaveNet, WaveNet Access, WaveNet Link, WaveNet Transport, Broadband Without Boundaries, StarPort, and StreamNet are trademarks or registered trademarks of interWAVE Communications, Inc. All other trademarks, service marks and product names mentioned in this document are the property of their respective owners.

United States Federal Communications Commission Required User Documentation

This equipment complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Changes or modifications not expressly approved by interWAVE in writing can void the user’s authority to operate this equipment.

This device must be professionally installed.

This device is to be exclusively used for fixed point-to-point operation with directional antennas.

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iv Link CX User Manual, Version A

Table of Contents

Welcome! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Document Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Microwave Radiation Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xii

Customer Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii

Conventions Used in this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv

Chapter 1 System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1-1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1-1.1 Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1-1.2 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-2 System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1-4 Link CX Basic Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1-4.1 Radio Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1-4.2 Data Stream . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1-4.3 Link CX Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1-4.4 Mounting and Antenna Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1-4.5 Interface Connectors and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1-4.6 Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1-4.7 Integral Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1-4.8 External Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1-4.9 Configuration, Operation, and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1-4.10 SNMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1-4.11 Link CX Network Management Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1-4.12 NMS Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1-4.13 Web-Based GUI Access Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1-4.14 GUI Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

1-5 Typical Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

1-5.1 Internet (ISP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

1-5.2 Private Network Wireless Bridged LANs and WANs . . . . . . . . . . . . . . . . . . . . . . . . . . 17

1-5.3 PCS/PCN and Cellular Networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

1-5.4 Wireless Local Loop Networks and Local Exchange Bypass . . . . . . . . . . . . . . . . . . . . 17

1-5.5 Business Bypass and Local Exchange Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

1-5.6 Backhaul for Wireless MTU and MTU Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

1-5.7 Wireless Mesh Backhaul Networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

1-5.8 Wireless ATM Mesh Distribution with StreamNet . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

1-6 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Chapter 2 Installation Steering Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

2-1 Installation Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Chapter 3 Installation Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

3-1 Planning a Link CX Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3-2 Site Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3-3 Planning Element and Network Management Ethernet Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3-4 Planning DS-3 Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

3-5 Power Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

3-6 Transmit Power Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3-6.1 Maximum Link CX Power Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3-6.2 Calculating the Required Transmit Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3-7 Radio Link Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Chapter 4 Installing the Link CX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

4-1 Before Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

4-1.1 General Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

4-1.2 Equipment and Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

4-1.3 Packing Lists and Orderable Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

4-1.4 Installation Tools and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

4-2 Initial Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

4-2.1 Connecting a Craft PC to the Link CX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

4-2.2 Logging In to the Link CX Built-In Web Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

4-3 Mounting the Link CX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

4-3.1 Installing the Link CX Mounting Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

4-3.2 Attaching the Link CX to the Mounting Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

4-4 External Antenna Installation (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

4-4.1 Installing a Factory-Supplied 4 Foot (122 cm) Antenna Mounting Bracket . . . . . . . . . 56

4-5 Completing the Link CX Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

4-5.1 Mounting the Lightning Arrestor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

4-5.2 Routing the Data and Power Cables from the Lightning Arrestor . . . . . . . . . . . . . . . . 70

4-5.3 Grounding the Link CX and Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

4-5.4 Sealing the Data and Power Cable Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

4-6 Aligning the Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

4-6.1 Integral Antenna on a Single Adjustable Elevation Mount . . . . . . . . . . . . . . . . . . . . . . 73

4-6.2 Integral Antenna on a Dual Adjustable Elevation Mount . . . . . . . . . . . . . . . . . . . . . . . 74

4-6.3 External Antenna on Antenna-Specific Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

4-7 Acceptance Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Chapter 5 Final Link CX Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81

Chapter 6 Monitoring and Trend Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83

6-1 Built-In Web Server Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

6-2 SNMP Network and Element Management Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

6-2.1 SNMP Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

6-2.2 Monitoring Error Messages and Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Chapter 7 Troubleshooting the Link CX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85

7-1 Troubleshooting Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

vi Link CX User Manual, Version A

7-2 Using the Link CX LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

7-3 Using RSSI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

7-4 Using a Web Browser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Appendix 1 Interface Cable Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

A1-1 DS-3 Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

A1-2 Ethernet Data Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

A1-3 DC Power Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

A1-4 Ethernet Crossover Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

A1-5 External Antenna Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

A1-6 RS-232 Craft Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

A1-7 StreamNet ATM Switch Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Appendix 2 Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

A2-1 Link CX Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

A2-2 Factory-Supplied Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Appendix 3 Using the Web-Based GUI User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

A3-1 Web Browser Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

A3-2 Connecting A Web Browser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

A3-3 Accessing the Link CX Web Pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

A3-4 Link CX Web Pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Appendix 4 Grounding and Lightning Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

A4-1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

A4-2 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

A4-3 Lightning Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

A4-4 Bibliography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Appendix 5 Enterprise MIBs and Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

A5-1 Enterprise MIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

A5-2 Enterprise Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

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viii Link CX User Manual, Version A

Welcome!

This manual is intended for the technical personnel who will install and operate the U-NII (Unlicensed National Information Infrastructure) and ISM (Industrial, Scientific and Medical) Link CX. Such personnel are typically experienced and skilled technicians familiar with on site, physical installation and connection of equipment, including maintenance work. It is also intended for system administration personnel performing initial configuration and subsequent system reconfiguration, as well as current system maintenance activities.

Document Organization

This manual provides a detailed description of the Link CX components, and operating, installation and management procedures.

• Chapter 1 provides an overview and briefly describes typical applications.

• Chapter 2 provides an installation steering guide with references to subsequent installation

sections.

Preface

• Chapter 3 describes how to plan the Link CX network, radio links, and remote element and

network management links, and individual Link CX radios.

• Chapter 4 provides detailed hardware installation and acceptance test procedures.

• Chapter 5 describes final configuration procedures and the Web browser user interface.

• Chapter 6 presents procedures for monitoring and performing trend analysis on the

Link CX.

• Chapter 7 provides instructions for troubleshooting the Link CX.

• Appendixes provide detailed technical information for carrying out the installation and main-

tenance activities described in the other chapters of this manual.

Microwave Radiation Warnings

Radio Warning

Under normal operating conditions, Link CX radio equipment complies with the limits for human exposure to radio frequency (RF) fields adopted by the Federal Communications Commission (FCC). All interWAVE Communications, Inc. microwave radio equipment is designed so that under normal working conditions, microwave radiation directly from the radio is negligible when compared with the permissible limit of continuous daily exposure recommended in the United States by ANSI/IEEE C95.1-1991 (R1997), Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz.

Microwave signal levels that give rise to hazardous radiation levels can exist within transmitter power amplifiers, associated RF multiplexers, and antenna systems.

Antenna Warning

Designed for point-to-point operation, the Link CX microwave radio system uses directional antennas to transmit and receive microwave signals. These directional antennas are usually circular or rectangular, are generally located outdoors, and are usually mounted with the Link CX on a tower or mast.

The Link CX is classified as a fixed installation product, and per FCC policy guidelines regarding maximum permissible exposure (MPE), antennas used for this interWAVE radio must be installed to provide a separation distance of 2 m (79 in.) or more from all persons during normal operation to satisfy FCC RF exposure limits. As the Link CX is typically mounted on a building or mast high enough to clear ground-level path obstructions, the general population will be further than 2 m (79 in.) from the radio antenna, and the FCC RF exposure limits will be met.

interWAVE Communications, Inc. fully supports the FCC’s adopted MPE limits, and recommends that personnel stay 2 m (79 in.) or more from the front of all directional microwave antennas. Should you have questions about Link CX microwave signal radiation, please contact interWAVE Customer Support.

Never look into the front of an open RF connection or RF antenna as eyes are particularly vulnerable to radiation. Do not disconnect RF coaxial connectors, open microwave units, or break down any microwave screening while the radio equipment is operating.

FCC Regulatory Information

The Link CX is certified for use in the 5.3 GHz and 5.8 GHz unlicensed bands in the United States.

The 5.3 GHz version of the Link CX is certified under FCC part 15.407, U-NII regulations covering the frequency band of 5250-5350 MHz.

5.3 GHz (5.25-5.35 GHz)

5.3 GHz Link CX radios are equipped with an integral antenna only, and operate under the FCC Part 15, subpart E, U-NII license-exempt regulations, which certify the radios for –1.0 dBm average, or +7.4 dBm peak transmit power. The 5.3 GHz Link CX radios have been certified in the following configuration:

• Link CX, 5.3 GHz, integral antenna

The following table summarizes the technical specifications of the 5.3 GHz version of the Link CX.

x Link CX User Manual, Version A

Table 1 5.3 GHz Link CX Specifications

Parameter Description

FCC Identifier OEWCX-DS3-53G

Frequency Band 5250 – 5350 MHz, U-NII per 15.407

Mode of Operation Full Duplex, 100% duty cycle

Channel Spacing 16 MHz

Transmit / Receive Separation 60 MHz

Number of Channel Pairs 2

Channel Pair 1 5262 MHz / 5322 MHz

Channel Pair 2 5278 MHz / 5338 MHz

Modulation 16 QAM, α = 0.15

Emission Bandwidth (26 dB) 13.9 MHz

Frequency Stability +/- 5.0 PPM

Maximum Output Power -1.0 dBm average (+7.4 dBm peak)

Antenna Type Integral flat panel

Antenna Gain 21 dBi

User Interfaces

5.8 GHz (5.725-5.825 GHz)

The 5.8 GHz Link CX radios operate under the FCC Part 15.247 band regulations, which certify the radios for +16 dBm average or +24.1 dBm peak transmit power for intentional radiators in a point-to-point configuration. The 5.8 GHz Link CX radios are equipped with an integral or an external antenna. The 5.8 GHz Link CX radios have been FCC certified in the following configurations:

• Link CX, 5.8 GHz, integral antenna

• Link CX, 5.8 GHz, 2 ft. (61 cm) external Radio Waves, Inc. Model SP2-5.2 parabolic antenna

• Link CX, 5.8 GHz, 2 ft. (61 cm) external Gabriel Electronics, Inc. Model SSP2-52B parabolic

antenna

• Link CX, 5.8 GHz, 4 ft. (122 cm) external Gabriel Electronics, Inc. Model SSP4-52B para-

bolic antenna

See the following table summarizing the technical specifications for the 5.8 GHz version of the Link CX.

DSX3 coaxial, 10/100 base-T Ethernet, Craft PC RS-232 interface

Table 2 5.8 GHz Link CX Specifications

Parameter Description

FCC Identifier OEWCX-DS3-58G

Frequency Band 5725 – 5850 MHz, per 15.247, revised 5/16/02

Mode of Operation Full Duplex, 100% duty cycle

Channel Spacing 16 MHz

Transmit / Receive Separation 60 MHz

Number of Channel Pairs 2

Channel Pair 1 5737 MHz / 5797 MHz

Channel Pair 2 5753 MHz / 5813 MHz

Modulation 16 QAM, α = 0.15

Emission Bandwidth (26 dB) 13.9 MHz

Frequency Stability +/- 5.0 PPM

Maximum Output Power +16 dBm average (+24.1 dBm peak)

Integral flat panel, 2 ft. parabolic – Radio Waves, Inc.

Antenna Types

Model SP2-5.2, 2 ft. parabolic – Gabriel Electronics, Inc. Model SSP2-52B

4 ft. parabolic – Gabriel Electronics, Inc. Model SSP4-52B

Antenna Gains 21 dBi, 28.3 dBi, and 34.6 dBi

User Interfaces

Note that any references in this manual referring to external antennas, or external antenna mounting only apply to the 5.8 GHz version of the Link CX. The 5.3The 5.8 GHz Link CX radios are equipped with an integral or an external antenna, GHz version is certified for use with the integral antenna only.

Customer Support Services

interWAVE has regional Customer Support centers that handle day-to-day customer issues. Each center is staffed with a local technical support group. The exact services to be performed by the interWAVE Customer Support department are specified in a support contract. Below is an example of the types of services available:

• Telephone support

• Site surveys

• Installations

• Off-line and online commissioning

• Network integration activities

• Troubleshooting and fault isolation

• Escalation of problems to appropriate interWAVE technical departments

interWAVE can physically perform all or a portion of these processes for the operator, as specified in the support contract. The Customer Support department can also provide documentation outlining corrective and preventive maintenance procedures and troubleshooting guides for fault isolation.

Contact your local Sales Support office http://www.iwv.com.

If possible, please have the following information available when making a call:

• Site number or name

• Full description of product(s) (e.g., model and part number) and configuration

• Serial number of product(s)

• Purchase order number

• Contact name and telephone number

• Ship to address

• Bill to address

For support on installing or configuring all interWAVE equipment, contact your Regional interWAVE Customer Support Center at:

• +852.2574.1922 or asia_support@iwv.com.hk -- Asia and Pacific Rim

• +1.866.306.1263 or usa_support@iwv.com -- North and South America, Europe, Africa,

and Middle East

or via the Internet at http://www.iwv.com/custsupport.

, or interWAVE headquarters directly via the Internet at

xiii

Return Materials Authorization

In the event that a depot repair or hardware replacement is required after contacting Customer Support, please contact interWAVE for return authorization. The following information is required by interWAVE:

• Full description of the product(s): model and part number

• Serial number of the product(s)

• Purchase order number

• Quantity that needs to be returned to interWAVE, if applicable

• Description of observed problem

All interWAVE products carry a one year manufacturing warranty from the date of shipment. At the time of a request for a return authorization, if the product has exceeded the warranty period, interWAVE will require a new purchase order number to cover the cost of non-warranty repair.

Contact Sales Operations via the Internet at http://www.iwv.com or email at rma@iwv.com.

Traini ng

interWAVE has developed an extensive series of training courses designed to teach you how to use our products. The courses are developed by a combination of subject matter experts and training specialists in order to create highly technical materials in modern training format. Each of our course offerings are designed around specific learning objectives that keep our classes on track to learning specific job skills related to interWAVE products.

The interWAVE training catalog contains a listing of the interWAVE training services available along with descriptions of each course. Our training materials are divided into specific subsystem training series, depending upon the topic and job requirements.

Contact Customer Support via the Internet at http://www.iwv.com or email at training@iwv.com.

xiv Link CX User Manual, Version A

Conventions Used in this Manual

The following type and style conventions are used in this manual:

sssssssssssss ssssssssssssss sssssssssssss ssssssssssssss sssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss sssssssssssss ssssssssssssss sssssssssssss ssssssssssssss sssssssssssss ssssssssssssss sssssssssssss ssssssssssssss sssssssssssss ssssssssssssss sssssssssssssss ssssssssssss sssssssssssssss sssss sssssssssssss ssssssssssssss sssssssssssss ssssssssssssss sssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss sssssssssssss ssssssssssssss sssssssssssss ssssssssssssss sssssssssssss ssssssssssssss sssssssssssss ssssssssssssss sssssssssssss ssssssssssssss sssssssssssssss ssssssssssss sssssssssssssss sssss sssssssssssss ssssssssssssss sssssssssssss ssssssssssssss sssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss ssssssssssss sssssssssssssss sssssssssssss ssssssssssssss sssssssssssss ssssssssssssss sssssssssssss ssssssssssssss sssssssssssss ssssssssssssss sssssssssssss ssssssssssssss sssssssssssssss ssssssssssss sssssssssssssss sssss

Table 3 Conventions Used in This Manual

Convention Meaning

Body text

Bold

Used for regular body text

Indicates a menu or button choice

Command Indicates computer generated text and prompts

User Input Indicates user input

<hostname> In command syntax, indicates user-specified command line parameters <variable> In body text, indicates user-specified command line parameters

[BRACKETS] Indicates a key on the keyboard or instrument

Provides relevant additional information

Provides important warning information that may affect operation of or maybe a potential threat to the system

Used to tell the reader to

STOP what they are doing and to read

important instructions that are vital to prevent equipment or software damage

(this page intentionally left blank)

xvi Link CX User Manual, Version A

One

System Description

10000

This chapter contains a functional description of the Link CX product family, and contains the following sections:

• Section 1-1, General

• Section 1-2, System Overview

• Section 1-3, Features

• Section 1-4, Link CX Basic Structure

• Section 1-5, Typical Applications

Welcome to the interWAVE WaveNet Link Series product family. This manual is designed to introduce you to the Link CX products, and to provide you with information necessary to plan, install, operate and maintain a Link CX wireless communication system.

The Link CX is intended for professional installation only. However, this manual is also designed for personnel who plan, operate and administer the Link CX communication system. Please review the entire manual before powering up or deploying any Link CX.

1-1 General

1-1.1 Products

The Link CX products are cost-effective, all-outdoor, pole-mounted, high-capacity, line-of-sight (LOS) digital radio transmission systems, each operating in the license-exempt 5.25-5.35 GHz (5.3 GHz) or

5.725-5.825 GHz (5.8 GHz) frequency bands. The Link CX can be used for the following applications: point-to-point or building-to-building, WLL (wireless local loop), backup solutions, temporary links, and mesh cellular backhaul.

• The 5.3 GHz Link CX-DSX DS-3 and 10/100 versions conform to the FCC (Federal Commu-

• The 5.8 GHz Link CX-DSX DS-3 and 10/100 versions conform to the FCC Part 15.247

Both Link CX-DSX versions provide either a standard DS-3 (44.736 Mbps) interface adhering to Bellcore GR-499-CORE (DSX-3) standards, or provides two Ethernet 10/100Base-T interfaces adhering to IEEE 802.3 standards, with a combined nominal line rate of 45 Mbps.

nications Commission) Part 15.407 Subpart E describing U-NII (Unlicensed National Information Infrastructure) operation. It operates at up to -1.0 dBm average transmit power, and is intended for short-distance use.

describing intentional radiators. It operates at up to +16 dBm average power, and is intended for use over longer distances.

System Description 1

Each Link CX is powered by an external ±21 to ±60 VDC power supply.

1-1.2 Applications

The Link CX product line is designed to serve the following communications markets:

• Internet Access and Backhaul Systems: Used by Internet Service Providers (ISPs).

• Private Networks: Wireless Bridged LANs and WANs.

• PCS/PCN and Cellular Networks: High speed links between base stations.

• Wireless Local Loop Networks: Fixed wireless, used by Local Exchange Carriers (LECs).

• Business Bypass or Local Exchange Bypass: Provided by Competitive Access Providers

(CAPs) and Competitive Local Exchange Carriers (CLECs).

• When used with interWAVE StreamNet ATM Switches, the Link CX can provide the radio

links in a self-healing wireless mesh backhaul network to support broadband communications, including DSL (Digital Subscriber Line) and Cellular over ATM (Asynchronous Transfer Mode).

1-2 System Overview

Each Link CX consists of a Link CX radio, with integral antenna (5.3 GHz or 5.8 GHz versions) or an optional external antenna (5.8 GHz versions), as shown in Figure 1-1, along with external power and data cabling. In a typical installation, the Link CX radio and antenna are mounted outdoors, usually on a tower or building. If so equipped, the external antenna connects to the Link CX radio through a factory-supplied coaxial cable.

See Figure 1-1. A radio system, or link, contains two Link CX radios each equipped with either an integral or external antenna, installed at each end of the link, separated by a line of sight transmission path. Frequency band, terrain, actual line-of-sight and environmental conditions influence the range of operation and path performance.

The Link CX carries one full-duplex DS-3 or Ethernet channel, and is powered by a 30-watt external ±21 to ±60 VDC power supply.

2 Link CX User Manual, Version A

Line of Sight

Transmission Path

DS-3 or

Ethernet Data

A. Radio Link using 5.3 GHz or 5.8 GHz Link CX with Integral Antennas

DS-3 or

Ethernet Data

Line of Sight

Transmission Path

Ethernet Data

B. Radio Link using 5.8 GHz Link CX with External Antennas

DS-3 or

Ethernet Data

IW140201

Figure 1-1 Typical Radio Link Configurations

System Description 3

Because the Link CX can be ordered in two different bands, with high and low channels, and can be installed with horizontal or vertical polarization, up to eight Link CXs can be mounted at a each hub, or node, to form part of a star or mesh network. See Figure 1-2.

1H 5.8

2H 5.31V 5.3

2V 5.8

2H 5.31V 5.3

1H 5.8

Figure 1-2 CX-UNII and CX-ISM Star Network

2V 5.8

a =

1H =

2V =

Link CX 5.8

Link CX 5.3

0 - 90°

Channel 1, Horizontal

Channel 2, Vertical

IW134204

4 Link CX User Manual, Version A

1-3 Features

The Link CX offers the following features:

• Robust outdoor all-outdoor enclosure.

• Integral or external antenna.

• Sturdy radio mounting systems for quick, accurate and reliable integral antenna alignment.

• Operates in the license-exempt 5.25-5.35 GHz (5.3 GHz) or 5.725-5.825 GHz (5.8 GHz)

• Conforms with FCC Part 15.247 rules (5.725-5.825 GHz) or Part 15.407 rules

• Full-duplex transmission:

• Easy configuration, installation, operation, and maintenance.

• Integral web server for configuring, operating, and monitoring using an HTML-based web

• Ethernet interface used with NMSs (Network Management Systems) or EMSs (Element

bands.

(5.25-5.35 GHz).

• DS-3 (DSX-3, per Bellcore GR-499-CORE)

• Ethernet 10/100Base-T (per IEEE 802.3)

browser GUI.

Management Systems) using SNMP (Simple Network Management Protocol) traps. Supports MIB-II (Management Information Base II) and interWAVE enterprise MIB.

• ATPC (Automatic Transmit Power Control).

• Self Test, BER test mode, RF and digital loopbacks.

• Reed Salomon Forward Error Correction (FEC).

• Operating and backup software versions contained in Link CX memory, operator-selectable.

System Description 5

1-4 Link CX Basic Structure

1-4.1 Radio Links

Each radio link includes two Link CX terminals. Each terminal consists of a Link CX radio with an integral flat-panel antenna, or a Link CX radio with an external antenna (see Figure 1-1). Generally, the Link CX terminals are mounted outdoors on a tower or building.

1-4.2 Data Stream

The DS-3 or Ethernet data signals enter the Link CX, and are modulated into the RF data stream. The RF radio signal radiates from the local antenna and propagates to the remote antenna. At the remote terminal, the received signal is demodulated and demultiplexed, separating the payload data and the overhead management data.

1-4.3 Link CX Models

The Link CX is manufactured in many configurations:

• Versions with DS-3 or Ethernet carried over 5.3 GHz or 5.8 GHz links.

• Each version available with either an integral 30 x 30 cm (12 x 12 in.) antenna, or with an

N-type connector for a factory-supplied 61 cm (2 ft.) or 122 cm (4 ft.) external antenna, or an N-type connector for a customer-supplied external antenna.

Link CX models are described in Table 1-1.

Table 1-1 Link CX Models

Model

M100746-101 M100747-101

M100748-101 M100749-101

M100748-102 M100749-102

M100746-201 M100747-201

M100748-201 M100749-201

M100748-202 M100749-202

Transm i t Band

Low High

Frequency Band Link Carries Antenna

5.25-5.35 GHz DS-3 Integral

5.725-5.825 GHz DS-3 Integral

5.725-5.825 GHz DS-3 External, 61 or 122 cm (2 or 4 ft.)

5.25-5.35 GHz

5.725-5.825 GHz

Ethernet (45 Mbps)

Integral

External, 61 or 122 cm (2 or 4 ft.)

6 Link CX User Manual, Version A

1-4.4 Mounting and Antenna Alignment

To ensure proper mounting and antenna alignment interWAVE sells mounting brackets designed for use with the Link CX. The single bracket mounts one Link CX, while the dual bracket mounts two Link CXs back-to-back. Both brackets are designed to provide rugged mounting for the Link CX, while allowing fine adjustment for antenna alignment.

1-4.5 Interface Connectors and Indicators

See Figure 1-3 for a view of the Link CX external connectors and indicators. The Link CX connectors and indicators are described in Table 1-2.

8 External Antenna (on far side, if equipped)

1 POWER

2 CRAFT

3 RSSI

4 OUT

5 IN

Figure 1-3 Link CX Interface Connectors and Indicators

7 ETHERNET 1

6 ETHERNET 2

9 LEDs

IW060203

System Description 7

Table 1-2 Link CX Interface Connectors and Indicators

No. Name Component Description From Note

1POWER

2 CRAFT

3 RSSI

4OUT

5IN

6 ETHERNET 2

7 ETHERNET 1

Male 4-Pin Circular Connector

Female 4-Pin Circular Connector

Female BNC Connector

Female TNC Connector

Female 4-Pin Circular Connector

Power input plug Power Supply

RS-232 receptacle

Receive Signal Level Indicator

DS-3 data from the radio link

DS-3 data to the radio link

10/100Base-T transmit and receive receptacle

Asynchronous laptop port

Voltmeter

DS-3 data equipment

Ethernet equipment

Accepts ±21 to ±60 VDC

1200 to 115,200 baud, used only for tech support troubleshooting

Verifies RF signal strength, used to align antenna

For Ethernet data or link to SNMP or Web manager, or use to daisy-chain Ethernet port to next Link CX in cascade

(Same as ETHERNET 2)

ANTENNA PORT (Opt.)

PWR/LCL ALM

RF LINK

DATA

ENET 2

ENET 1

Female N-type Connector

Green LED

50 Ohm RF receptacle

Power/Local Alarm Status

Radio Link Status

DS-3 Status

Ethernet Status

External antenna

Only equipped on external-antenna models, on far side of chassis

ON = Power OK, no alarm, Flashing = Local alarm, OFF = Power off.

ON = Rcv. OK, OFF = Link Alarm.

ON = OK (no LOS), OFF = LOS.

ON = OK, Flashing = data, OFF = No conn.

Note: For connector pinouts, refer to Appendix 1.

8 Link CX User Manual, Version A

1-4.6 Cables

To ensure longevity in a outdoor environment, interWAVE sells various cables designed for use with the Link CX. interWAVE offers the following weather-resistant cables:

• DS-3 and Ethernet data cables and the power cables are offered in 25 m (82 ft.), 50 m

(164 ft.), and 100 m (328 ft.) lengths.

• A 6 m (19.7 ft.) Ethernet cable is available to route the Ethernet signal between two Link CXs

in the same location, or when you are configuring the Link CX from a Craft PC.

• For models to be used with external antennas, a 2 m (6.6 ft.) N-to-N RF cable is available to

connect the external antenna to the Link CX.

• A 6 m (19.7 ft.) RS-232 4-pin Circular-to-DB9 Craft cable is available to connect a Craft PC

to a Link CX for future CLI applications.

• When the Link CX is to be used with a StreamNet ATM Switch for a mesh backhaul network,

a 6 m (19.7 ft.) dual TNC-to-TNC cable is available to connect each StreamNet ATM Switch to a Link CX.

All of the cables described above include weather-resistant connectors and moisture-excluding gel inside the cable sheaths. For this reason, interWAVE recommends that customers and installers not attempt to shorten or splice the factory-supplied cables.

System Description 9

1-4.7 Integral Antenna

The integral antenna is a 30 cm x 30 cm (12 in. x 12 in.) flat-panel antenna mounted directly on the

5.3 GHz or 5.8 GHz Link CX radio chassis, as shown in Figure 1-4. All RF connections between the integral antenna and the Link CX radio are made internally, eliminating the need for external coaxial cabling. Because the integral antenna is sealed onto the Link CX chassis, the Link CX and integral antenna are mounted as a unit, and share the same environmental protection. An arrow on the connector side of the Link CX chassis indicates the antenna polarization (either vertical or horizontal).

Integral Antenna

Link CX Radio

IW060201

Figure 1-4 Integral Antenna and Link CX Radio

10 Link CX User Manual, Version A

1-4.8 External Antenna

Some 5.8 GHz Link CX models use an external antenna to radiate and receive RF signals. The antenna attaches to the Link CX via a factory-supplied cable. The following sections describe factory- and customer-supplied external antennas.

Factory-Supplied

The following external antennas are offered for use with the Link CX:

• 61 cm (2 ft.) parabolic type

• 122 cm (4 ft.) parabolic type

Figure 1-5 shows a typical 61 cm external antenna with N-type connector cabled to the Link CX radio.

The antenna type should be selected according to local regulatory rules and system gain requirements.

For the available antenna models refer to Table 1-3. Complete antenna specifications are provided in Appendix 2.

Table 1-3 Antenna Models

Model Description

091-455524-101 Parabolic antenna, 5.725-5.825 GHz, 61 cm (2 feet)

091-455548-101 Parabolic antenna, 5.725-5.825 GHz, 122 cm (4 feet)

Customer-Supplied

The Link CX can be ordered with a coaxial cable to be connected to a customer-supplied external antenna. In this case, refer to the external antenna user documentation for specifications and model numbers.

System Description 11

FactorySupplied Coaxial Cable

External Antenna

Link CX Radio

IW060204

Figure 1-5 Typical Factory-Supplied External Antenna and 5.8 GHz Link CX Radio

12 Link CX User Manual, Version A

1-4.9 Configuration, Operation, and Monitoring

The Link CX and radio link are configured, operated and monitored through one of five user interfaces. The five interfaces are:

• A built-in web server GUI hosted by the Link CX, which can be accessed by any local or

remote computer equipped with a web browser. This is the interface most operators will use to interact with the Link CX. The web browser can access the Link CX built-in web server through either the ETHERNET 1 or ETHERNET 2 port.

Note that the ETHERNET 1 and ETHERNET 2 ports are functionally equivalent, and that they are both served by an onboard Ethernet controller. The controller automatically switches polarity on the transmit and receive pairs when they are reversed, eliminating the need for crossover cables.

• SNMP traps, which communicate with MIB-II compliant NMSs (Network Management

Systems) and EMSs (Element Management Systems). This interface is used by operators who want real-time notification of radio problems. The Link CX sends SNMP traps to NMSs and EMSs over Ethernet links through either the ETHERNET 1 or ETHERNET 2 port.

• An ASCII command line interface, accessible through the RS-232 CRAFT port, or through

the ETHERNET 1 or ETHERNET 2 port using telnet. This interface is primarily used by operators and interWAVE technical support personnel when performing detailed troubleshooting.

• The RSSI port, providing a DC voltage level proportionate to the received RF signal level, and

allowing installers to use a DC voltmeter to fine-tune antenna alignment. This interface is primarily used during installation, but the current RSSI measurement is also available via the Link CX built-in web server or via SNMP polls.

• Five LEDs that provide visual alarm status. They verify proper operation of the Ethernet

ports, DS-3 ports, and radio link, and indicate proper power input and radio operation. These LEDs are usually used during installation to provide a quick product verification.

1-4.10 SNMP

The Link CX radio supports SNMP network management. SNMP is a protocol that defines the method of communicating with and controlling network devices.

Devices that support the SNMP protocol can be queried for their status and other device information. Some devices allow changing device settings or configurations using SNMP commands. The device settings and other device data are available as variables. They are defined in the standard Management Information Base (MIB) file, provided by the device manufacturer. The SNMP manager uses a database to hold lists of variables that can be accessed for each device on the network. The device data can be displayed in tables, graphs, or saved in a file.

1-4.11 Link CX Network Management Architecture

Link CX software network management is comprised of two main items:

• SNMP based Network Management System (NMS) application in the network management

workstation.

System Description 13

Polling

Traps

• SNMP agent in the Link CX.

The workstation manages all Link CXs assigned unique IP addresses. The workstation also provides a graphical display of the network objects showing the status, performance, and configuration parameters of each Link CX radio.

The SNMP local agent is a standard MIB-II compliant software module that resides in each Link CX. The agent collects information from different Link CX components as defined in the Management Information Base (MIB) structure. The Link CX incorporates both standard and private MIBs.

Different Link CXs are distinguished by their customer-assigned IP addresses. The Web browser communicates with the Link CX using TCP/IP and HTTP protocol.

The NMS data transfer between the manager and the agents is accomplished using either polling or trapping techniques.

The NMS polls each Link CX SNMP agent at specific intervals. These are set according to user requirements during SNMP NMS configuration.

The Link CX agent sends an SNMP trap to the manager whenever a predefined event occurs. Groups of traps can be defined according to their level of severity. The operator can choose to enable or disable any traps or group of traps according to their level of severity (and his or her own security level). Traps can be logged using any standard SNMP manager.

1-4.12 NMS Connectivity

The NMS workstation can access any Link CX using its IP address. The NMS workstation can connect to each Link CX using any of the following methods:

• 10/100 Base-T Ethernet - accessing Link CXs via a LAN through hubs, switches or routers.

• Cascading Ethernet links transport NMS information between colocated Link CXs. This is

done by daisy-chaining the ETHERNET 1 and ETHERNET 2 ports between Link CX radios using straight-pinned or crossover Ethernet cables.

1-4.13 Web-Based GUI Access Security

Access to the Web-based GUI (graphical user interface) is limited by username and password, which is available at different levels of security as follows:

• User - Read only privilege.

• Administrator - Read/partial write privilege. The administrator cannot cause an radio link to

reset by changing critical parameters.

• Supervisor - Full read/write privilege.

14 Link CX User Manual, Version A

1-4.14 GUI Functions

The Web-based GUI monitors and controls the main functions of the Link CX. These functions are listed below and detailed in the following sections:

• Configuration management

• Status and fault management

• Test activation and monitoring

• Software downloading

• Performance monitoring

Refer to Appendix 3 for Link CX GUI operating instructions.

Configuration Management

The NMS software can be used to configure the parameters of the Link CX radio, although this is normally done using a web browser GUI. This includes the setup of templates with predetermined default values, relating to both the parameters of common element types and the validation of parameter values. It also includes saving and loading configuration files for individual Link CX radios. The NMS also controls the uploading and downloading of individual parameter values, and complete configuration setups.

Parameter configuration is terminal-oriented. Every configuration session deals with the Link CX as accessed by its particular IP address. Some of the parameters, such as RF channel number, link ID, etc. affect the Link CXs on both ends of the radio link. Special care should be taken to activate the new parameter values consistently on both ends of the radio link.

Status and Fault Management

Status and fault management involve a selective display of failures alerting the user to take actions according to a decision making tree.

Some status indications and alarms may report conditions that pertain to both ends of the radio link. These ends are commonly referred to as local and remote.

Note that the ‘local’ system is the Link CX you are logged into, and the ‘remote’ Link CX is the one at the far end of the radio link. Thus, when

you are logged into the far end Link CX on a radio link that terminates at your current physical location, the far end Link CX is ‘local’ and the near end Link CX is ‘remote’.

Test Activation and Monitoring

Following is a brief description of the tests that can be invoked and monitored by the Web based NMS.

Loopbacks

The loopbacks are incorporated into the radio to assist in detecting equipment/component/cable failure during both installation and normal operations. Loopbacks are user initiated. Link CX supports RF and various interface loopbacks.

System Description 15

BER Test

The following Bit Error Rate (BER) test is provided by Link CX:

• Pseudo random signal generator - capable of inserting a standard test signal for BER

measurements, and local- and remote-end loopback functions.

• BER measurements of radio link performance under normal operating conditions.

Software Downloading

The Web-based user interface enables off-line operation and SNMP updates of files. Alternatively, when on-line, configuration can be updated from the NMS to the Link CX agent. Another way to upgrade multiple Link CXs is to use FTP.

Note that the Link CX can hold two software loads in memory, which facilitates upgrading and reverting to a previous software version.

Certain factory default software settings are always retained at the Link CX to safeguard against complete failure of communications caused by equipment restart.

Performance Monitoring

Each Link CX gathers various statistics regarding radio link performance. The Web based user interface can retrieve and analyze these statistics upon demand. In addition, the Web based user interface manager processes its own general statistical data, based on the information that is received. Current BER, Receive Signal Strength Indicator (RSSI), and other performance monitors are available for the radio link.

The Web-based user interface is designed to easily interface with optional graph management software packages for sophisticated performance presentation.

1-5 Typical Applications

Link CX gives the user great flexibility in setting up point-to-point radio links on a very cost effective basis, because it avoids unnecessary outlays in expensive leased lines or fiber optic land-based lines. Low cost of ownership makes return on investment (ROI) attractive compared to leased lines.

Link CX advantages over copper/fiber alternatives include: short installation time, easy maintenance using NMS software, independence of competing PTTs, avoiding the need to secure normal right-of-way and/or physical installation permits, and redeployable depending on changing needs.

The simplicity of the Link CX installation makes it easy for the user to implement Link CX in a variety of applications. It also means that the user can conveniently move a previously installed Link CX to a new location to meet the requirements of a changing system. Link CX enables seamless future software upgradability, protecting customer investment, reducing logistics, spare parts and product stocking. The following sections briefly describe typical applications.

16 Link CX User Manual, Version A

1-5.1 Internet (ISP)

The appetite for higher Internet access speeds require faster ISP access and backhaul and ISP connections to businesses. The Link CX radio is perfectly suitable for both backbone and direct end-user connectivity.

1-5.2 Private Network Wireless Bridged LANs and WANs

Link CX radios are also used to provide communications links for private networks. For companies requiring frequent communications into areas without extensive telecommunications infrastructure or in areas where the cost of local access is high, installing and maintaining a Link CX radio network can be very cost effective. Typical users of private networks include: government agencies such as land management, municipal agencies, and universities; large utilities such as oil, gas, and electric concerns; and companies with widely deployed assets such as railroads and timber resource managers.

1-5.3 PCS/PCN and Cellular Networks

Cellular operators mainly use Link CX radio links for Base Transceiver Station (BTS) interconnections, BTS to Base Station Controller (BSC), and BSC to BSC interconnections.

1-5.4 Wireless Local Loop Networks and Local Exchange Bypass

Wireless systems in emerging markets were originally deployed to provide premium services to a mobile subscriber base. However, middle and lower income countries have driven mobile network providers into a new business - the substitution of wireless service for fixed service, so-called fixed wireless networks, providing a cost-effective solution in situations where no wireless infrastructure exists. Wireless local loop (last mile) networks are implemented mostly by Local Exchange Carriers (LECs).

Alternative carriers, such as Competitive Access Providers (CAPs) and Competitive Local Exchange Carriers (CLECs) use radio links to establish standard telecommunications links between their customers’ sites and their own backbone networks. This way CAPs and CLECs provide their customers with cost-effective local area telephone service and cheaper long distance services.

1-5.5 Business Bypass and Local Exchange Bypass

The Link CX radio is a perfect solution for Business Bypass and Local Exchange Bypass applications.

System Description 17

1-5.6 Backhaul for Wireless MTU and MTU Access

The Link CX radio can be used as an infrastructure element in wireless Multiple Tenant Unit (MTU) and Multiple Dwelling Unit (MDU) applications, when used with interWAVE StreamNet products. Figure 1-6 shows a typical wireless MTU/MDU access configuration.

To AT M Network

StreamNet

2400

Link CX

Radio

45 Mbps

Link CX

Radio

ATM-Fed

DSLAM

DS-3

Link CX

Radio

Link CX

Radio

StreamNet

2400

10-BaseT

IAD IAD

POTS x 16

Figure 1-6 Typical Wireless MTU/MDU Access Configuration

45 Mbps

Link CX

Radio

StreamNet

10-BaseT

2400

POTS x 16

IW142201

18 Link CX User Manual, Version A

1-5.7 Wireless Mesh Backhaul Networks

2.5G and 3G cellular systems, which integrate voice and data, require higher-capacity backhaul, QoS (Quality of Service), BoD (Bandwidth on Demand), ability to dynamically load balance bursty traffic, and provide support for legacy 1G and 2G systems. When used with interWAVE StreamNet ATM Switches, the Link CX can provide the radio links for a self-healing wireless mesh backhaul network to support broadband ATM communications to support this application. These networks feature high reliability, lower maintenance costs, improved scalability, and enhanced interference mitigation.

DSL providers are typically limited by the quality of existing copper lines to a short distance from the CO (Central Office). To serve customers farther from the CO, DSLAMs (DSL Access Modules) must be used closer to the customer site. The backhaul from DSLAMs to the CO has to be robust to reduce or eliminate downtime, and must have sufficient bandwidth to support DSL traffic. When used with StreamNet ATM Switches, the Link CX can provide the radio links for a self-healing wireless DSLAM mesh backhaul network to support these requirements. See Figure 1-7 for a typical wireless mesh backhaul network.

High-Capacity Radio Low-Capacity Radio Switch Node/DSLAM POP Aggregator

Figure 1-7 Typical Wireless DSLAM Mesh Backhaul Network

IW086201

System Description 19

1-5.8 Wireless ATM Mesh Distribution with StreamNet

When used with interWAVE StreamNet ATM Switches, the Link CX can provide the radio links for a self-healing wireless ATM mesh backhaul network to support broadband communications. These networks feature high reliability, lower maintenance costs, improved scalability, and enhanced interference mitigation. See Figure 1-8 for a typical wireless ATM mesh backhaul network.

1H 5.8

2H 5.3

2V 5.8

2H 5.3

1V 5.3

1H 5.8 1H 5.8

1V 5.3

2V 5.8

1H 5.8

2H 5.32H 5.3

1V 5.3

Figure 1-8 Typical Wireless ATM Mesh Backhaul Network

1-6 Specifications

Refer to Appendix 2 for Link CX specifications.

StreamNet

Link CX 5.8

Link CX 5.3

POP

SAI

IW134205

20 Link CX User Manual, Version A

Two

This chapter briefly outlines the complete installation and configuration procedure for the Link CX, and a flowchart of this process is given. The topics discussed here are presented in detail in subsequent chapters of this manual.

2-1 Installation Flow Chart

The flow chart in Figure 2-1 includes references to the installation and troubleshooting sections in this manual.

Installation Steering Guide

20000

Installation Steering Guide 21

Start

Chapter 3

Planning the Installation

Section 4-1

Before Installing

Section 4-2

Initial Configuration

Section 4-3

Mounting the Link CX

Section 4-4 External Antenna

Installation (Optional)

Section 4-5 Completing the

Link CX Installation

Section 4-6

Aligning the Antenna

Chapter 7

Troubleshooting

Figure 2-1 Installation Flowchart

Section 4-7

Not OK

Acceptance Testing

Chapter 5

Final Link CX Configuration

End

IW017201

22 Link CX User Manual, Version A

Three

Installation Planning

30000

This chapter provides a comprehensive planning guide for Link CX installations, and includes a Radio Link Planning Worksheet that should be filled out for each radio link. Fill out a copy of the Radio Link Planning Worksheet before continuing with Chapter Four.

In addition, this chapter provides an introduction to Network Management System (NMS) software and configuration issues.

This chapter contains the following sections:

• Section 3-1, Planning a Link CX Network

• Section 3-2, Site Planning

• Section 3-3, Planning Element and Network Management Ethernet Links

• Section 3-4, Planning DS-3 Links

• Section 3-5, Power Planning

• Section 3-6, Transmit Power Planning

• Section 3-7, Radio Link Planning

Make sure that you read through this chapter, and make a copy of and fill out the Radio Link Planning Worksheet in Section 3-7 before you continue with the Link CX installation.

3-1 Planning a Link CX Network

As described in Section 1-5, the Link CX can be used to support a number of applications. However, the two most common configurations are point-to-point and mesh network. Point-to-point configurations (Figure 1-1) are easiest to plan and implement, as the radio links merely transmit industry-standard formatted data from one location to another. Mesh network configurations (Figure 1-7) use interWAVE StreamNet ATM Switches to create networks that feature high reliability, low maintenance cost, improved scalability, and enhanced interference mitigation.

Both configurations use common point-to-point radio links, so the point-to-point radio link planning can also be applied to mesh network configurations. Generally, the common points to consider when planning a Link CX network are:

• Line of Sight: Unlike some frequency bands, the Link CX radios must be within line of sight

of each other. That is, the far-end antenna must be visible from the near-end antenna. If there are trees, buildings, mountains, or other obstructions between the two antennas, the

Installation Planning 23

Link CXs on each end of the radio link will be unable to communicate with each other. Make sure the Link CX radios used in each radio link are within line of sight of each other. Refer also to the Fresnel Zone Clearance section that follows.

• Fresnel Zone Clearance: There must be sufficient open space around the direct line of

sight to minimize interference with the radio beam. At a minimum, 60% of the first Fresnel zone of the path should be clear.

Even with clear line-of-sight, objects still may be near enough to the transmission path to cause problems. Obviously, objects that stand directly in the transmission path obstruct the beam, causing a drop in signal strength at the receiving end; in addition, objects and reflective surfaces that are in near proximity to the path can cause signal interference and attenuation of the received signal.

Fresnel zones define the amount of clearance required for obstacles. These zones are series of concentric ellipsoid surfaces that surround the straight-line path between the two antennas. The first Fresnel zone is defined as the surface containing every point for which the distance from the transmitter to any reflection point on the surface and then on to the receiver is one-half wavelength longer than the direct signal path.

The following equation shows that Fresnel zones are a function of the transmission frequency, path length, and location along the path:

F1 17.3

d1d2

----------- - Fresnel Zones formula= fD

Where:

Fl = First Fresnel zone radius in meters d1= Distance from transmitter to reflection point in kilometers d2 = Distance from reflection point to receiver in kilometers D = Length of direct signal path in kilometers f = Transmission frequency in GHz.

An envelope at six-tenths of the first Fresnel zone (referred to simply as the Fresnel Zone Clearance) defines the minimum acceptable clearance of an obstacle (see Figure 3-1). The formula for the Fresnel Zone Clearance is shown after Figure 3-1.

24 Link CX User Manual, Version A

Direct Path

.6F1 Envelope

Figure 3-1 Fresnel Zone Clearance

0.6F1 10.4

d1d2

----------- - Fresnel Zone Clearance formula= fD

IW100201

Where:

Fl = First Fresnel zone radius in meters d1= Distance from transmitter to reflection point in kilometers D = Length of direct signal path in kilometers d2 = D - d1 f = Transmission frequency in GHz.

Figure 3-1 shows that the Fresnel zone radius is greatest at midpath. It is at this point that the required obstacle clearance is greatest. The equation given previously yields the 0.6F1 minimum beam clearance envelope values at midpath as shown in Table 3-1. Also use the equation to calculate the necessary minimum beam clearance envelope for other obstacles along the path, especially near both endpoints of the path.

Installation Planning 25

Table 3-1 Beam Clearance Envelope at Midpath

Path Distance Midpath Minimum Beam Clearance Envelope (Note)

2 km 7 m

5 km 11 m

10 km 15 m

20 km 21 m

32 km 27 m

1 mile 20 ft

3 miles 34 ft

6 miles 48 ft

12 miles 69 ft

20 miles 88 ft

Note: The minimum beam clearance envelope is defined by the radius around the direct path

shown in Figure 3-1, within which there must be no obstacles.

The Fresnel zone surrounds the direct signal path, so it affects objects to the side of the path as well as objects directly in the path.

• Multipath Fading: See Figure 3-2. Because a Link CX terminal typically transmits its stron-

gest signals in a cone-shaped pattern, some of the signal may be reflected from a nearby building, from water under the signal path, or from other RF reflectors. This reflected signal can then be received by the far-end Link CX and superimposed on the main signal, usually degrading the signal strength. To avoid multipath fading, interWAVE recommends that you install the Link CX antenna on the back, rather than the front, of buildings to avoid multipath fading from water or other ground-level surfaces, and that you plan radio links away from nearby buildings.

26 Link CX User Manual, Version A

Line of Sight

Transmission Path

Multipath

Reflection

A. Link CXs Mounted on Front of Building Experience Multipath Fading

Line of Sight

Transmission Path

Multipath

Reflections

Building

B. Link CXs Mounted on Back of Building Eliminate Multipath Fading

Figure 3-2 Preventing Multipath Fading from Ground-Level Surfaces

• External Interference: Because the Link CX operates in an unlicensed band, interWAVE

strongly recommends that you use a spectrum analyzer at both ends of planned radio links, with the receiving antenna as close to the proposed Link CX antenna mounting spot as possible. Use a polarized antenna, and scan for both horizontally- and vertically-polarized interfering radiation. If you find external interference in either of the two (High or Low) bands, configure the Link CX for the least-impacted band. Refer to Table 3-3 for the High and Low bands for the Link CX radio.

BuildingBuilding

Building

IW086202

Installation Planning 27

3-2 Site Planning

Each proposed Link CX terminal site requires a site survey and plan for the following:

• Power: The Link CX radio requires a +/-21 to +/-60 VDC power source. Make sure

required power supply is available before installing the Link CX.

• Mounting Point: The Link CX is usually mounted on a vertical mast or pole mounted on a

building or a tower. The Link CX mounting bracket can accommodate a 4.5- to 11.5-cm (1.75- to 4.5-in.) diameter mast or pole.

When the Link CX is equipped with an external antenna, the antenna and the Link CX radio should be mounted so the factory-supplied 2 m (79 in.) can be used to connect the antenna to the Link CX.

• Grounding and Lightning Protection: The Link CX radio requires adequate grounding

and lightning protection. If the mounting point described above provides adequate lightning protection, the Link CX radio will still need a good earth ground to a bare-metal earth ground. Refer to Appendix 4 for detailed grounding and lightning protection recommendations.

• Cable Routing: The Link CX DS-3 and/or Ethernet data cables connect associated external

equipment to the Link CX radio. Before installation, procure cable ties and/or standoffs to route and to create service loops for these cables.

• Physical Security: The Link CX radio is typically mounted high enough to prevent casual

tampering. The Link CX radio is further protected by anti-tampering chassis screws that prevent most casual attempts to open the chassis.

3-3 Planning Element and Network Management Ethernet Links

The Link CX communicates with SNMP-based Element Management Systems and Network Management Systems over Ethernet communication links. Because the Link CX contains two independent switched Ethernet ports, each Link CX can be connected directly to an Ethernet switch or router, and colocated Link CXs can be cascaded. Figure 3-3 shows some common arrangements for the EMS and/or NMS Ethernet links.

The cable run from the Ethernet switch or router to the Link CX must be 100 m (328 ft.) or less, and can be straight-through or crossover, because the Link CX Ethernet ports automatically detect the transmit and receive pairs and switch them if necessary. interWAVE sells 25 m (82 ft.), 50 m (14 ft.), and 100 m (328 ft.) Ethernet cables with the correct connectors for these links, as described in Section 1-4.6.

Alternatively, when Link CXs are to be cascaded as shown in Figure 3-3 (B), interWAVE sells a 6 m (20 ft.) Ethernet cable with the correct connectors for the Link CX-to-Link CX links, as described in Section 1-4.6.

Note that the EMS or NMS must be within eight or fewer Ethernet hops of the Link CX for proper communications.

28 Link CX User Manual, Version A

EMS/NMS

Ethernet Backbone

A. DS-3 Link CXs at Different Locations

Switch/

Ethernet

Router

B. Colocated DS-3 Link CXs

Switch

C. Colocated Ethernet Link CXs

Figure 3-3 Typical EMS/NMS Ethernet Connections

EMS/NMS

Ethernet

IW142202

Installation Planning 29

3-4 Planning DS-3 Links

The Link CX DS-3 versions use paired 75 Ohm cables with male TNC connectors for the transmit and receive data from external DS-3 equipment. interWAVE sells 25 m (82 ft.), 50 m (14 ft.), and 100 m (328 ft.) DS-3 cables with the correct connectors for these links, as described in Section 1-4.6.

Alternatively, when a StreamNet ATM Switch is connected to the Link CX, interWAVE sells a 6 m (20 ft.) DS-3 cable with the correct connectors for this link, as described in Section 1-4.6.

3-5 Power Planning

interWAVE sells 25 m (82 ft.), 50 m (14 ft.), and 100 m (328 ft.) power cables with the correct connectors for Link CX power, as described in Section 1-4.6.

30 Link CX User Manual, Version A

3-6 Transmit Power Planning

The Link CX normally uses a manually-set output power level. When Automatic Transmit Power Control (ATPC) is enabled, the far-end Link CX terminal provides feedback to the near-end Link CX to lower the transmit power to the lowest level required for clear data transmission.

Transmit power can be attenuated by 40 dB for initial configuration and interference isolation. Also, a maximum transmit power level can be set (whether or not ATPC is enabled) to prevent interference with other RF receivers.

3-6.1 Maximum Link CX Power Output

Since the Link CX can be ordered in a number of configurations, with different gains for each of the associated antennas, use the Table 3-2 to determine the maximum power output. Note that the factory-supplied external antenna attenuates the maximum power output by approximately 0.5 dB.

Table 3-2 Maximum Power Output by Model Configuration

Model Frequency Band

M100746-101 M100747-101 M100746-201 M100747-201

M100748-101 M100749-101 M100748-201 M100749-201

M100748-102 M100749-102 M100748-202 M100749-202

5.25-5.35 GHz

5.725-5.825 GHz

Link Carries

DS-3 or Ethernet (45 Mbps)

3-6.2 Calculating the Required Transmit Power

Antenna Max Tx Power

Integral

External, 61 cm (2 ft.)

External, 122 cm (4 ft.)

-1 dBm +21 dBi = +20 dBm Average EIRP

+16 dBm +21 dBi = 37 dBm EIRP

+16 dBm +28 dBi

-0.5 dB = 43.5 dBm EIRP

+16dBm +34.6dBi

-0.5 dB = 50.1 dBm EIRP

The Link CX will normally use the maximum transmit power listed in Table 3-2, but may need to be attenuated when there are other receivers beyond the remote Link CX terminal (for instance, in a mesh network). In this case, the professional installer must use the free-space calculation to determine the actual Maximum Transmit Power to prevent interference.

Installation Planning 31

3-7 Radio Link Planning

As described in Section 1-4, each radio link requires one Link CX at each end of the link. Before you start installing your Link CXs, fill in the following information for both ends of the radio link:

Table 3-3 Radio Link Planning Worksheet

Information Common to Both Link CX Radios

Radio Link Name:

Radio Link Information:

Radio Link Polarization (pick one, must be the same for both): HORIZONTAL VERTICAL

Radio Link Payload (as ordered, must be the same for both): DS-3 Ethernet

Information Unique to Each Link CX Radio

Link CX 1 - High Band Link CX 2 - Low Band

Model Number (see Link CX Label & Table 1-1)

Antenna Type (pick one)

Radio Link Channel and Band Center Frequency (pick one pair, must be different)

Transmit Attenuation (default = Disable)

M1007 _ _ - _ 0 _ (high band)

Integral 61 cm (2 ft.) 122 cm (4 ft.)

Channel 1 High Band,

5.3 GHz: Tx--5.322 GHz/ Rx--5.262 GHz (default)

Channel 2 High Band,

5.3 GHz: Tx--5.338 GHz/ Rx--5.278 GHz

Channel 1 High Band,

5.8 GHz: Tx--5.797 GHz/ Rx--5.737 GHz (default)

Channel 2 High Band,

5.8 GHz: Tx--5.813 GHz/ Rx--5.753 GHz

Enable Disable Enabled Disable

M1007 _ _ - _ 0 _ (low band)

Integral 61 cm (2 ft.) 122 cm (4 ft.)

Channel 1 Low Band,

5.3 GHz: Tx--5.262 GHz/ Rx--5.322 GHz

Channel 2 Low Band,

5.3 GHz: Tx--5.278 GHz/ Rx--5.338 GHz

Channel 1 Low Band,

5.8 GHz: Tx--5.737 GHz/ Rx--5.797 GHz

Channel 2 Low Band,

5.8 GHz: Tx--5.753 GHz/ Rx--5.813 GHz

Maximum Transmit Power (refer to Section 3-6.2)

Automatic Tx Power Control (refer to Section 3-6)

32 Link CX User Manual, Version A

__ dBm __ dBm

Enable Disable Enabled Disable

Table 3-3 Radio Link Planning Worksheet (continued)

Link CX 1 - High Band Link CX 2 - Low Band

IP Address (must be different, obtain from IP network planner)

Subnet Mask (obtain from IP network planner)

Default Gateway (obtain from IP network planner)

RSSI Alarm Level (default = -70 dBm)

Alarm on Loss of DS-3 or Ethernet Input Signal

Allow Login From IP Addresses (don’t forget Craft PC)

_ _ _ . _ _ _ . _ _ _ . _ _ _ _ _ _ . _ _ _ . _ _ _ . _ _ _

- __ dBm - __ dBm

Enabled Disable Enabled Disable

Any (default) -OR_ _ _ . _ _ _ . _ _ _ . _ _ _

_ _ _ . _ _ _ . _ _ _ . _ _ _

Any (default) -OR_ _ _ . _ _ _ . _ _ _ . _ _ _

_ _ _ . _ _ _ . _ _ _ . _ _ _

SNMP Trap Community (default = public, up to 19 ASCII characters starting with an alpha character, including numbers and - _ .)

Send SNMP Traps to

Read/Write Community (default = public, up to 19 ASCII characters starting with an alpha character, including numbers and - _ .)

Allow Read/Write Access From

_ _ _ . _ _ _ . _ _ _ . _ _ _ _ _ _ . _ _ _ . _ _ _ . _ _ _ _ _ _ . _ _ _ . _ _ _ . _ _ _

Any (default) -OR_ _ _ . _ _ _ . _ _ _ . _ _ _

_ _ _ . _ _ _ . _ _ _ . _ _ _ _ _ _ . _ _ _ . _ _ _ . _ _ _

_ _ _ . _ _ _ . _ _ _ . _ _ _ _ _ _ . _ _ _ . _ _ _ . _ _ _ _ _ _ . _ _ _ . _ _ _ . _ _ _

Any (default) -OR_ _ _ . _ _ _ . _ _ _ . _ _ _

_ _ _ . _ _ _ . _ _ _ . _ _ _ _ _ _ . _ _ _ . _ _ _ . _ _ _

Installation Planning 33

Table 3-3 Radio Link Planning Worksheet (continued)

Link CX 1 - High Band Link CX 2 - Low Band

Read-Only Community (default = public, up to 19 ASCII characters starting with an alpha character, including numbers and - _ .)

Allow Read-Only Access From

System Name (optional, up to 255 ASCII characters)

System Contact Information (optional, up to 255 ASCII characters)

System Location (optional, up to 255 ASCII characters)

Any (default) -OR_ _ _ . _ _ _ . _ _ _ . _ _ _

34 Link CX User Manual, Version A

Four

Installing the Link CX

40000

This chapter describes the physical installation of the Link CX. Each Link CX consists of an outdoor pole-mounted radio with integral antenna or optional external antenna. If so equipped, the Link CX radio is connected to the external antenna with a factory-supplied coaxial cable.

For faster installation, make sure you have a filled-out copy of the Radio Link Planning Worksheet from Chapter Three before continuing with the rest of this chapter.

This chapter covers the following topics:

• Section 4-1, Before Installing, includes general guidelines, equipment unpacking, inventory

and tools

• Section 4-2, Initial Configuration, includes all the steps necessary to configure the Link CX

radio before mounting it (and its optional external antenna) on the pole

• Section 4-3, Mounting the Link CX, includes steps for installing the Link CX (and its optional

external antenna) on the pole

• Section 4-4, External Antenna Installation (Optional), includes optional external antenna

installation steps

• Section 4-5, Completing the Link CX Installation, describes installed Link CX cabling and

grounding

• Section 4-6, Aligning the Antenna, includes Link CX antenna alignment steps

• Section 4-7, Acceptance Testing, includes Link CX acceptance tests

This chapter describes initial configuration and installation of the Link CX hardware. After completing this chapter, the installer should proceed to Chapter Five to perform a final configuration on the Link CX radio after hardware installation.

This device must be professionally installed.

Installing the Link CX 35

This device is to be exclusively used for fixed point-to-point operation with directional antennas.

4-1 Before Installing

Before you continue with this installation, make sure you have a filled-out copy of the Radio Link Planning Worksheet found in Section 3-7.

4-1.1 General Guidelines

The installation, maintenance, or removal of antenna systems requires qualified, experienced personnel. Link CX installation instructions have been written for such personnel.

Before installing the Link CX radio, it is recommended that installation personnel read this chapter in its entirety. If installation personnel are unfamiliar with the radio components, we recommend reading Chapter One. After reading through the full installation procedure, installation personnel may proceed to the relevant sections in this chapter.

Since Link CX is easy to install, a previously installed Link CX can be conveniently moved to a new location. Re-deployment allows the user to meet the requirements of a changing system with minimal effort and expense. Thus, installation personnel should assume that the activities described in this chapter are not one-time procedures but will have to be repeated from time to time.

This manual assumes that the site power and grounding have already been installed. This manual also assumes that the antenna mounting pole has been installed before installing the Link CX. When installing and aligning a Link CX radio or associated radio link, the user should always have on hand the required tools, test equipment and any other required miscellaneous installation devices and materials.

The Link CX electronics have been designed to be maintenance free, and the outdoor components are very rugged. However, because of continued exposure to weather, it is recommended that qualified personnel inspect antenna systems once a year to verify proper installation, maintenance, and condition of equipment.

interWAVE disclaims any liability or responsibility for the results of improper or unsafe installation practices.

36 Link CX User Manual, Version A

4-1.2 Equipment and Unpacking

interWAVE suggests that the user retain at least one (1) of each packing carton with all its packing materials. In the event that it is necessary to return a unit, the user will have the required packing material for safe shipment.

Each Link CX radio is shipped with the Link CX User’s Manual on CD-ROM, and a separate box contains the optional 5.8 GHz external Antenna Mount Assembly, U-bolts and antenna with tube attachment. Unpack each box and examine the exterior of each unit for any visible damage. If visible damage is detected, immediately contact your sales representative or interWAVE Customer Support.

The equipment shipped (Link CX radio with or without external antenna) depends on the specific purchase order as described in Table 1-1.

4-1.3 Packing Lists and Orderable Parts

Each packing carton is accompanied by a packing list. Verify the contents of the carton against the packing list. Regardless of the packing list parts described here, the shipped packing list is binding.

Note the warranty sticker on the Link CX. The Link CX radio is sealed at the factory. Tampering with these seals voids the warranty.

See Figure 4-1 for a picture of the orderable Link CX parts, and see Table 4-1 for a high-level description of the orderable parts.

Installing the Link CX 37

2C2B2A

5B5A

6 7 8

(Graphic

TBD)

9A, 9B 10

IW093201

Figure 4-1 Link CX Orderable Parts

38 Link CX User Manual, Version A

Table 4-1 Link CX Radio Orderable Parts

Item Qty Part Number Description See Also

1A 1 See Table 1-1

1B 1 See Table 1-1

2A 1 100607-001

2B 1 100680-001

2C 1 100694-001

3 1 AC100008

5A 1

TBD TBD

100763-001 100764-001 100765-001

Link CX Radio, Integral Antenna Section 1-4.3

Link CX Radio, External Antenna Section 1-4.3

Non-Adjustable Elevation Single Link CX

Radio Bracket

Adjustable Elevation Single Link CX

Radio Brackets

Adjustable Elevation Dual Link CX

Radio Brackets

Section 1-4.4

Optional 2 m (6.5 ft.) N-to-N External Antenna RF

5.8 GHz Link CX

Cable (required for some

models)

Section 1-4.6

Optional Single

61 cm (2 ft.) 122 cm (4 ft.)

25 m (82 ft.) 50 m (164 ft.) 100 m (328 ft.)

Polarization

External Parabolic Antenna with

Mounting Bracket

DS-3 Payload Data Cables and Power Cable Kit

Section 1-4.6

100766-001

5B 1

6 1 100655-001

7 1 100588-003

8 1 100586-001

9A 1 TBD

9B 1 TBD

10 1 100757-001 User Manual CD-ROM Preface

100767-001 100768-001

25 m (82 ft.) 50 m (164 ft.) 100 m (328 ft.)

6 m (19.7 ft.) Link CX-to-Link CX 10/100 Ethernet Crossover Cable

6m (19.7ft.) Dual 75Ohm DS-3 TNC-to-TNC StreamNet ATM Switch Ethernet Cable

Optional 6 m (19.7 ft.) Craft PC 4-pin Circular-to-DB9 RS-232 CLI Cable

Optional Transtector Lightning Arrestor Kit used at the cable entry to the Power, DS-3 and Ethernet Equipment Structure

Optional Transtector Lightning Arrestor Kit used at the cable entry to the 10/100 Ethernet and Power Equipment Structure

10/100 Ethernet Payload Data Cable and Power Cable Kit

Section 1-4.6

Appendix 4

Installing the Link CX 39

4-1.4 Installation Tools and Materials

Tools

The user should have at least the following tools on hand before installing the Link CX radio:

Table 4-2 Required Installation Tools

Tools Purpose

Materials

Refer to Section 4-1.3 and collect the following materials:

13 mm (11/16 in.) and YY mm (XX in.) and RR mm (SS in.) torque wrench

Optical aid or compass (optional) For coarse antenna azimuth alignment

Vertical level (optional) For coarse antenna elevation alignment

Hand-held voltmeter, including cable with BNC adapter

Large Flat-Blade Screwdriver Tighten the steel band clamps, when required

Tighten the pole mount assembly to the pole and tighten the alignment lockdown bolts

Fine-tune the antenna alignment

• For DS-3 models:

• DS-3 coaxial cables to the Link CX.

• Ethernet data interface cables to the Link CX.

• For Ethernet models:

• Ethernet data interface cables to the Link CX.

• For all models:

• Power cable to the Link CX.

• Dual DS-3 coaxial cables to the StreamNet ATM Switch or other equipment.

• Optional RS-232 cable to Craft PC command line interface. (Future option.)

• Standoffs and/or tie wraps (or similar) for fastening cables.

• Vinyl (or equivalent) electrical tape.

• Butyl rubber amalgamating connector sealing tape.

• Customer-supplied solid wire or tape (not braided) grounding wire.

• Lightning arrestors.

• Optional 2 W, 50 Ohm load with N-Type connector used during initial configuration of

Link CXs with external antennas.

40 Link CX User Manual, Version A

4-2 Initial Configuration

interWAVE strongly recommends that the installer configure the Link CX at a depot or on-site before it is mounted in its final location. This section includes instructions on how to configure the Link CX before it is installed.

Because you can expose yourself to harmful RF radiation any time the Link CX is powered up, do not stand within 2 m (79 in.) of the antenna during Link CX operation. The installer is responsible for ensuring that the antenna is mounted in a place inaccessible to the public.

4-2.1 Connecting a Craft PC to the Link CX

For faster configuration, make sure you have a filled-out copy of the Radio Link Planning Worksheet from Chapter Three before continuing with the rest of this section.

The equipment used to configure the Link CX is a Craft PC with 10/100 Ethernet port and cable, equipped with any current web browser and Adobe Acrobat Reader software. Figure 4-2 shows how to connect the Craft PC and power to the Link CX for initial configuration.

Perform the following steps:

1 (Only for Link CXs with external antennas.) When you are configuring a Link CX with an

external antenna, connect the external antenna or a 2 W, 50 Ohm load to the antenna port. This prevents harm to the Link CX internal circuits should full RF power be applied without a load.

2 If necessary, use the instructions provided with your Craft PC operating system to change

the Craft PC ethernet address to 10.0.0.1.

3 Turn off power to the Craft PC to prevent damage to the Ethernet port receive circuitry.

4 Using a factory-supplied ethernet cable, connect an Ethernet-port equipped Craft PC to the

Link CX as shown in Figure 4-2.

5 MAKE SURE the antenna is pointing away from your work area before you apply power to

the Link CX, and MAKE SURE you stay at least 2 m (79 in.) from the front of the antenna while the Link CX is connected to power.

6 Using a factory-supplied power cable, connect an external power supply to the Link CX as

shown in Figure 4-2.

7 Turn on power to the Craft PC and verify that the Ethernet port is active. Note that the

Link CX Ethernet switch will auto-detect transmit and receive pairs, and you should detect an Ethernet connection within a few seconds of port activation.

The Link CX is now powered on and transmitting RF, and the Craft PC is now ready to log onto the Link CX internal web main page.

Installing the Link CX 41

Mil-Type

Connector

From +/-21 to

+/-60 Vdc Supply

CAT-5 Ethernet

Cable

RJ-45 Ethernet

Port

Figure 4-2 Link CX Configuration Setup

4-2.2 Logging In to the Link CX Built-In Web Server

After you have connected and powered up the Link CX and the Craft PC as described in Section 4-2.1, use the web browser on the Craft PC to log into the Link CX built-in web server as follows:

8 Launch the web browser per the manufacturer’s instructions.

9 Open the web page at ethernet address 10.0.0.2 (transmit low models) or 10.0.0.3 (transmit

high models) in the web browser.

If the web browser ethernet address has been changed, use the replacement ethernet address instead of 10.0.0.x..

10 If the Link CX has not been configured for a login and password, continue with Step 11. If

the Link CX has already been configured for a login and password, enter both and continue with Step 11.

Craft PC

IW093202

11 The web browser displays the Monitor Page, similar to the one shown in Figure 4-3. Note

that the values shown for each of the parameters will vary, depending on the state of the Link CX.

42 Link CX User Manual, Version A

Figure 4-3 Typical 5.8 GHz Link CX Monitor Web Page

Installing the Link CX 43

12 On the Monitor page, select the link for the Commission Radio page. The web browser

displays the Commission Radio page, similar to the sample shown in Figure 4-4.

Figure 4-4 Typical 5.8 GHz Link CX Commission Radio Web Page

The Link CX is shipped with Tx Attenuation disabled. Enable Tx Attenuation until the rest of the Link CX configuration steps are completed.

13 Using the data entered on the filled-out copy of the Radio Link Planning Worksheet from

Chapter Three, select the planned configuration choices available on this page, except the final Tx Attenuation and the Automatic Tx Power Control values. Enable the Tx Attenuation and disable the Automatic Tx Power Control for now.

14 Click Submit Changes to upload changes to the Link CX.

15 On the Commission Radio page, select the link for the Commission Interfaces page. The web

browser displays the Commission Manager Interfaces page, similar to the sample shown in Figure 4-5.

16 Using the data entered on the filled-out copy of the Radio Link Planning Worksheet from

Chapter Three, select the planned configuration choices available on this page.

44 Link CX User Manual, Version A

17 Click Submit Changes to upload changes to the Link CX.

18 On the Commission Manager Interfaces page, select the link for the Test page. The web

browser displays the Test page, similar to the sample shown in Figure 4-6.

19 On the Test page, select the BERT + Radio Loopback test, and select One Minute. Select

Start Test to verify the internal Link CX circuitry before installation.

When the BERT + Radio Loopback test is complete, the Link CX has been configured, and the internal signal generation, transmit, receive, and detecting circuitry of the Link CX has been tested. Continue with Step 18.

20 On the Test page, select the link for the Commission Radio page. The web browser again

displays the Commission Radio page, similar to the sample shown in Figure 4-4.

Do not stand within 2 m (79 in.) of the front of the antenna during Link CX operation to avoid harmful RF radiation.

21 On the Commission Radio page, set the Tx Attenuation to disabled. This causes the Link CX

to transmit at the level set by the Maximum Transmit Power parameter.

22 Disconnect power from the Link CX to prepare it for mounting in its final location.

23 Disconnect the Craft PC from the Link CX.

24 (Only for Link CXs with external antennas.) When you have configured a Link CX with an

external antenna, disconnect the external antenna or 50 Ohm load from the antenna port. This makes it easier to mount the Link CX and the external antenna in their final locations.

After completing this section, the Link CX radio is configured and partially tested, and is ready to install as described in Section 4-3.

Installing the Link CX 45

Figure 4-5 Link CX Commission Manager Web Page

46 Link CX User Manual, Version A

Figure 4-6 Link CX Test Web Page

Installing the Link CX 47

4-3 Mounting the Link CX

The Link CX radio is a sealed unit that installs on a pole. When the Link CX is equipped with an integral antenna, there is no need to install an external antenna. When the Link CX is equipped with an external antenna, you will mount the Link CX as described in this section, then you will install the optional external antenna as described in Section 4-4.

A pole is not supplied with the Link CX and should be in place before attempting installation.

After completing the configuration steps in Section 4-2, continue with the following steps to mount the Link CX on a pole.

The body performing the installation is the responsible for preventing any contact or induction with mains lines at any voltage.

To comply with FCC RF exposure requirements, antennas used with Link CXs must be rigidly mounted on permanent outdoor structures to provide 2 m (79 in.) or more separation from all persons during Link CX operation. Installers should refer to Table 3-2 when installing factory-supplied antennas, or the contact the customer-supplied antenna manufacturer for applicable gain and type restrictions to ensure compliance.

4-3.1 Installing the Link CX Mounting Bracket

When the Link CX is to be installed with an external antenna, make sure that the Link CX and the antenna are mounted close enough to use the factory-supplied 2 m (6.5 ft.) RF cable to connect them. Also make sure that the Link CX and external antenna are not so close that they interfere with each other during antenna alignment.

25 Install the pole-mount bracket as described in the appropriate section below.

48 Link CX User Manual, Version A

Non-Adjustable Elevation Single Link CX Bracket

A See Figure 4-7. Assemble the two steel band clamps to the pole mount bracket. B Wrap the clamps around the pole and finger tighten their clamp screws. The bracket

should be able to pivot around the pole, allowing horizontal alignment.

C Install the pole-mount bracket.

• When you are installing a Link CX with an integral antenna, use a compass or optical aid to coarsely align the pole mount bracket with the far-end antenna location. Continue with Section 4-3.2.

• When you are installing a Link CX with an external antenna, position the bracket near enough to the planned antenna location so that the Link CX does not interfere with antenna alignment and so the factory-supplied 2 m (6.5 ft.) antenna cable can be connected to both units. Continue with Section 4-3.2.

Pole Mount Bracket

Figure 4-7 Non-Adjustable Elevation Single Link CX Bracket

Adjustable Elevation Single Link CX Bracket

A See Figure 4-8. Assemble the two steel band clamps to the pole mount bracket. B Wrap the clamps around the pole and finger tighten their clamp screws. The bracket

should be able to pivot around the pole, allowing horizontal alignment.

C Install the pole-mount bracket. Use a compass or optical aid to coarsely align the pole

mount bracket with the far-end antenna location.

D Assemble the rest of the bracket parts as shown in Figure 4-8. Use a level to ensure

that the coarse elevation is 0°. Continue with Section 4-3.2.

Steel Band Clamps

IW099201

Installing the Link CX 49

Figure 4-8 Adjustable Elevation Single Link CX Bracket

Adjustable Elevation Dual Link CX Bracket

A Assemble the pole mount brackets and associated nuts, bolts, and washers on the

pole as shown in Figure 4-9. Finger tighten the four nuts. The pole mount bracket assembly should be able to pivot around the pole, allowing coarse horizontal alignment.

B Use a compass or optical aid to coarsely align the pole mount bracket assembly

between the far-end antenna locations.

The pole mount bracket assembly does not have to be closely aligned with either of the far-end antennas, as the Link CX mounting bracket assemblies allow a wide range of elevation and azimuth alignment.

C Tighten the four pole mount bracket assembly bolts to 20-25 foot-pounds

(27-34 n.m).

IW099202

50 Link CX User Manual, Version A

Figure 4-9 Adjustable Elevation Dual Link CX Pole Mount Bracket Assembly

IW099203

Installing the Link CX 51

D On each side of the pole mount bracket assembly, assemble the rest of the Link CX

mounting bracket assembly parts as shown in Figure 4-10.

E Finger tighten the six bolts on each Link CX mounting bracket assembly. Each Link CX

mounting bracket assembly should be able to pivot around the pole and elevate up and down, allowing fine azimuth and elevation alignment.

F Use a level to ensure that the coarse elevation for each Link CX mounting bracket

assembly is 0°.

G Continue with Section 4-3.2.

IW099204

Figure 4-10 Adjustable Elevation Dual Link CX Mounting Bracket Assembly (one

side only)

52 Link CX User Manual, Version A

4-3.2 Attaching the Link CX to the Mounting Bracket

Selecting the Link CX Integral Antenna Polarization

Both ends of the radio link must be identically polarized. The planned polarization is available from the filled-out copy of the Radio Link Planning Worksheet from Chapter Three.

When the Link CX is equipped with an integral antenna, how it is mounted determines the horizontal or vertical polarization. The Link CX mounting brackets are designed to preserve the selected polarization until the Link CX is removed from its bracket.

• When the Link CX is equipped with an external antenna, skip this section and continue with

Step 24.

• See Figure 4-11. The Link CX case is embossed with an arrow indicating the integral antenna

polarization. Point the arrow up for vertical, and sideways for horizontal polarization.

Polarization Arrow

Rotate 90° for

Horizontal

Polarization

IW094201

Figure 4-11 Setting the Link CX Polarization -- Vertical Polarization Shown

Installing the Link CX 53

Attaching the Link CX

26 See Figure 4-11, Figure 4-12 and Figure 4-13.

27 Orient the Link CX as shown in Figure 4-11, and align it with the mounting bracket as shown

in Figure 4-12. Note that the four mounting studs on the Link CX should line up with the four slide clips on the bracket as shown in Figure 4-13.

When the Link CX is equipped with an integral antenna, make sure that the antenna is properly polarized as described in the previous section.

IW099205

Figure 4-12 Attaching a 5.8 GHz Link CX to a Typical Mounting Bracket

54 Link CX User Manual, Version A

28 Secure the Link CX to the bracket using the four (4) slide clips on the bracket as shown in

Figure 4-13.

Press in until snapped onto stud (x4)

IW099206

Figure 4-13 Locking the Slide Clips

The Link CX is now connected to the mounting pole and coarsely aligned, if equipped with an integral antenna. Continue with Section 4-4.

Installing the Link CX 55

4-4 External Antenna Installation (Optional)

This section is only used when you are installing a Link CX with an external antenna. If you are installing a Link CX with an integral antenna, skip this section and continue with Section 4-5.

Installation, maintenance and removal of antenna systems requires qualified, experienced personnel. interWAVE installation instructions have been written for such personnel. interWAVE disclaims any liability or responsibility for the results of improper or unsafe installation practices.

Factory-Supplied Antennas

The factory-supplied antenna consists of a 61 cm (24 in.) or 122 cm (48 in.) solid parabolic reflector assembly, radome, band clamp, and Pole Mount. The Pole Mount is designed to attach the antenna to a vertical tower pipe of diameter 44 to 115 mm (1.75 to 4.5 in.). It also provides adjustment ranges of ±30° (fine) Elevation and ±20° (fine) Azimuth.

For the factory-supplied antenna specifications, refer to Appendix 2.

The Link CX is usually attached to the same pole as the external antenna, as mounting the Link CX close to the antenna preserves the low (0.5 dBm) attenuation of the factory-supplied antenna cable. Continue with Section 4-4.1 to install the factory-supplied antenna mounting bracket and the external antenna.

Customer-Supplied Antennas

The Link CX may be shipped without an integral or external antenna. For instance, the customer may wish to use a larger external antenna for increased gain. If this is the case, mount the Link CX as detailed in Section 4-3, and mount the customer-supplied antenna as described in the manufacturer’s instructions.

4-4.1 Installing a Factory-Supplied 4 Foot (122 cm) Antenna Mounting Bracket

To comply with FCC RF exposure requirements, antennas used with Link CXs must be rigidly mounted on permanent outdoor structures to provide 2 m (79 in.) or more separation from all persons during Link CX operation. Installers should contact the antenna manufacturer for applicable gain and type restrictions to ensure compliance.

Site Planning

29 For antenna mounting and planning dimensions, see Figure 4-14 and Table 4-3.

30 The antenna is normally assembled with an elevation adjustment range of +50 degrees to

-5 degrees. By inverting the mount, it can be assembled with a +5 degree to -50 degree range. In either configuration, the antenna centerline can be offset right or left, relative to the vertical mast pipe (see Figure 4-15) by inverting the Horizontal Tube Assembly.

56 Link CX User Manual, Version A

Figure 4-14 Four Foot (122 cm) Antenna

Table 4-3 Four Foot Diameter Antenna Dimensions

Installing the Link CX 57

Figure 4-15 Mount Configuration

Unpacking and Preparation

31 Carefully unpack the reflector, mount, shroud (if any), radome (if any) and feed from the

crate. For correct antenna performance, handle all components with care. Set aside the packaged feed and any shroud or radome. See Figure 4-16 through Figure 4-19.

Caution: The reflector spinning has been formed to a very close-toleranced parabolic shape. Careful handling and assembly is required to avoid denting or deforming the reflector, which would degrade the antenna’s performance.

32 Inspect for any damaged parts. See Table 4-4 through Table 4-7 for an inventory of the parts

and hardware shipped with the antenna.

Shroud Attachment

Attach the shroud assembly that is provided with high-performance antennas to the reflector. The installation procedure is covered by another instruction sheet supplied with the shroud.

Note: Some models have the shroud factory installed.

Table 4-4 Contents List, Reflector Assembly

58 Link CX User Manual, Version A

Table 4-5 Contents List, Feed Assembly

Figure 4-16 Mounting Hardware Packed

Figure 4-17 Mounting Hardware Unpacked

Installing the Link CX 59

Table 4-6 Contents List, Mount Assembly

60 Link CX User Manual, Version A

Table 4-7 Contents List, Mount Assembly

Figure 4-18 Parabolic Reflector

Installing the Link CX 61

Figure 4-19 Unpacking the Radome

Mount Assembly and Attachment

33 The reflector should be placed face down, either on the shroud or blocked up on packing

lumber. Locate the Top and Bottom markings stenciled onto the back of the reflector.

34 Loosely attach Top Support Angles to the Horizontal Tube Assembly as shown in

Figure 4-20 and Figure 4-21.

35 For desired mount configuration (see Figure 4-15), attach the Vertical Tube Assembly to the

Horizontal Tube Assembly as shown in Figure 4-20 and Figure 4-21.

36 Verify proper assembly of the elevation rod hardware as shown in Figure 4-22. Remove

outer hardware and insert rod through elevation plate.

Important: For elevation angles grater than ±20°, the Beveled Washers shown in Figure 4-22 must be used. However, beveled washers may be used for elevation angles greater than ±10°.

37 Carefully place mount assembly onto antenna backring, taking care not to damage the

reflector. Loosely fasten the Top Support Angles and the Elevation Support Angle to the antenna backring using 1/2” hardware as shown in Figure 4-20.

38 Verify alignment of the Vertical Assembly with the vertical axis of the reflector and secure the

Top Support Angles and the Elevation Support Angle to the ring.

62 Link CX User Manual, Version A

Figure 4-20 Antenna Mount Assembly

Figure 4-21 Antenna Mount Assembly

Installing the Link CX 63

Figure 4-22 Elevation Rod Assembly

Feed Installation

Following the instructions provided with the feed assembly, install the feed in the reflector. See Figure 4-23 through Figure 4-27.

Figure 4-23 Feed Horn Installation

64 Link CX User Manual, Version A

Figure 4-24 Feed Horn Polarization Markings

Figure 4-25 Parabola Rear View Showing Polarization Reference Markers

Figure 4-26 Feed Horn Installation

Installing the Link CX 65

Figure 4-27 Feed Horn Installation for Vertical Polarized Operation

Radome Installation

Molded radomes (normally optional on standard antennas) should be installed following the instructions provided.

Azimuth Adjustment Clamp/Shear Stop Installation

39 Verify proper assembly of the azimuth clamp/shear stop clamp as shown in Figure 4-28 and

Figure 4-29. Securely attach the shear stop clamp to the mast pipe as shown, orienting it as nearly as possible to the antenna boresight direction, and square to the mast axis. Note that the shear stop clamp used on the two foot antennas also provides the azimuth adjustment.

40 Refer to Figure 4-14 for the position of the antenna centerline relative to the shear stop

clamp. The clamp must be mounted to provide support during installation and azimuth adjustment.

Figure 4-28 Azimuth Clamp/Shear Stop Assembly

66 Link CX User Manual, Version A

Figure 4-29 Azimuth Adjustment Clamp Assembly

Antenna Hoisting and Installation

41 Attach a hoist strap around the vertical assembly or the horizontal assembly as shown in

Figure 4-30. Do not hoist by the elevation rod. Make sure that the vertical assembly is unobstructed where it will mount against the mast pipe.

42 Attach tag lines and carefully lift the antenna into position, resting the vertical assembly on

the shear stop clamp.

43 Fasten the mount to the mast pipe with 1/2” U-bolts. The antenna must be free to rotate

during azimuth adjustment, so tighten only enough to close the gap between the mast and vertical channel. Do not leave the antenna loose for any extended period of time, not even overnight.

Installing the Link CX 67

Figure 4-30 Hoisting the Antenna

44 Radome Panel Rotation -- Ensure that the radome drain and lock nut are oriented downward

for proper drainage (refer to Figure 4-31). When finished, fasten the locking nut(s).

Figure 4-31 Setting Radome Panel Rotation

68 Link CX User Manual, Version A

Inspection and Maintenance

45 Before leaving the installation, check that all hardware on the mount, shroud, radome, and

feed is tight and that nuts are locked in place.

46 Inspect the antenna at least once a year to check its condition and to insure safe operation

and maintenance. Qualified personnel, knowledgeable and experienced in antenna installations, are required for this inspection.

Supplemental Information

Table 4-8 is provided for installers unfamiliar with adequate nut tightening procedures for use on stainless steel bolts, U-bolts, galvanized bolts or any bolts without the ASTM-A325 marking on the head. Disregard these recommendations when specific tightening requirements are given.

Note: It is not recommended to reuse a palnut that has already been fully tightened or deformed in any way. It should be replaced with a new palnut.

Weatherproofing the Type N Female Connector on Feeds

Remove the protective cover from the end of the feed and mate the connectors, screwing the male connector firmly onto the feed.

Important: After connecting the coaxial cable, wrap the Type N connector with the gray butyl rubber, squeezing it firmly around all joints to make a continuous seal. Finish the weatherproofing by wrapping the butyl rubber with several layers of black PVC tape (not supplied).

Table 4-8 Nut Tightening Specifications

Continue with Section 4-5 to complete the Link CX installation.

Installing the Link CX 69

4-5 Completing the Link CX Installation

The Link CX and associated antenna are now mounted on the pole, and coarse-aligned with the far-end antenna. Continue with the following steps to complete the Link CX installation.

4-5.1 Mounting the Lightning Arrestor

interWAVE strongly recommends that you use a lightning arrestor, such as the Transtector Lightning Arrestor Kit, at the cable entry to the power, DS-3 and/or Ethernet equipment structure.

47 Install the lightning arrestor according to the manufacturer’s instructions, and according to

the guidelines in Appendix 4 to lessen the chance of damage from lightning strikes.

4-5.2 Routing the Data and Power Cables from the Lightning Arrestor

48 Route cables from the lightning arrestor through the cable entry to the power, DS-3 and/or

Ethernet equipment.

Leave a minimum of 38 cm (15 inches) of service loop in the cables where they attach to the lightning arrestor. Avoid tight bends during cable routing and fastening.

49 Connect the power, DS-3 and/or Ethernet cables to the power, DS-3 and/or Ethernet equip-

ment and the lightning arrestor.

50 Route power, DS-3 and/or Ethernet cables from the lightning arrestor to the Link CX.

Using cable ties and/or standoffs, fasten these cables to the structure at 3 m (10 ft.) intervals. Leave a minimum of 38 cm (15 inches) of service loop in the cables where they attach to the Link CX and the lightning arrestor. Avoid tight bends during cable routing and fastening.

The Link CX has two ethernet ports, and includes and internal ethernet switch. However, typical ethernet hubs and switches do not have spanning tree capability. MAKE SURE that you make only ONE ethernet connection from a hub or switch to the Link CX to prevent broadcast storms.

51 Connect the power, DS-3 and/or Ethernet cables to the lightning arrestor.

When you apply power to the Link CX, it starts transmitting. Do not stand within 2 m (79 in.) of the front of the antenna during Link CX operation to avoid harmful RF radiation.

52 Connect the power, DS-3 and/or Ethernet cables to the Link CX. See Figure 4-1 and

Table 4-1 for the locations and descriptions of the Link CX connectors.

53 Check the LEDs for proper operation. See Figure 4-1 and Table 4-1 for the locations and

descriptions of the Link CX LEDs.

• When power is properly applied to the Link CX, the PWR/LCL ALARM LED will be on.

70 Link CX User Manual, Version A

• Because the radio link has not yet been established, the RF LINK LED should be off.

• When the DS-3 equipment is or is not transmitting data to the Link CX, the DATA LED

should be on or off, respectively.

• When the Ethernet equipment is transmitting data to the Link CX, the ENET 1 and/or ENET 2 LEDs should be on or flashing. When the Ethernet equipment is not transmitting data to the Link CX, the ENET 1 and/or ENET 2 LEDs should be off or flashing as local data is received.

If any of these conditions is not true, troubleshoot the associated equipment and cables.

4-5.3 Grounding the Link CX and Antenna

The Link CX and the optional external antenna have grounding lugs. Make sure they are connected to a good earth ground using the guidelines in Appendix 4.

54 Following the guidelines in Appendix 4, connect a customer-supplied solid wire or tape (not

braided) grounding wire to the grounding lug on the back of the Link CX. See Figure 4-32 for the grounding lug location.

Connect the other end of this cable to a proper grounding point.

Installing the Link CX 71

Customer-Supplied

Grounding Wire or Tape

To Earth Ground

Grounding

Lug

Figure 4-32 Connecting an Earth Ground to the Link CX

55 If the Link CX is equipped with an external antenna, follow the guidelines in Appendix 4 and

connect a customer-supplied solid wire or tape (not braided) grounding wire to the grounding lug on the back of the antenna.

Connect the other end of this wire to a proper grounding point.

4-5.4 Sealing the Data and Power Cable Connectors

The cables that are terminated outdoors must be sealed at each exposed end to prevent moisture incursion and damage. For all exposed connectors, including those between an external antenna and the Link CX, perform the following:

56 Wrap each connector with vinyl or plastic electrical tape.

57 Wrap the vinyl or plastic electrical tape with butyl rubber amalgamating tape to prevent

moisture from permeating the connector.

58 Wrap the butyl rubber amalgamating tape with vinyl or plastic electrical tape.

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72 Link CX User Manual, Version A

Continue with Section 4-6 to fine tune the antenna’s azimuth and elevation.

4-6 Aligning the Antenna

This section includes steps used to fine tune the antenna alignment using RSSI as measured using a voltmeter. This part of the installation procedure is most easily accomplished with installers at each end of the radio link who are in communication with one another.

Failure to follow this antenna alignment procedure may damage your equipment and may render the radio unusable. Read through the entire procedure before attempting adjustment. Contact interWAVE with any questions.

When you are aligning a Link CX with an integral antenna on a single adjustable elevation pole mount, continue with Section 4-6.1. When you are aligning a Link CX with an integral antenna on a dual adjustable elevation pole mount, continue with Section 4-6.2. When you are aligning a Link CX with an external antenna, continue with Section 4-6.3.

When you apply power to the Link CX, it starts transmitting. Do not stand within 2 m (79 in.) of the front of the antenna during Link CX operation to avoid harmful RF radiation.

The Link CX with integral antenna is normally mounted on one of the adjustable elevation pole mounts to allow most accurate alignment and best system gain. If you are attempting to align a Link CX with integral antenna on a non-adjustable pole mount, adapt the following procedure, or contact interWAVE for fully-adjustable mounts.

4-6.1 Integral Antenna on a Single Adjustable Elevation Mount

Perform Step 57 through Step 62 on the local radio. Then, repeat these steps for the remote radio. See Figure 4-8 for the Single Pole Mount illustration.

59 Remove the cap from the BNC connector of the remote antenna. Attach the hand-held volt-

meter and BNC test lead to the test point.

60 Fine Azimuth Alignment -- Rotate the Link CX mounting bracket on the pole until the proper

azimuth alignment is achieved. Torque the steel band clamps on the single Link CX non-adjustable elevation pole mount to RR foot-pounds (SS n.m). Peak the alignment for maximum voltage at the remote antenna. Expected voltage is more than +1 VDC. The adjustment should be slowly tuned through the peak, and reset at the absolute maximum before tightening the straps.

61 Fine Elevation Alignment -- Rotate the Link CX mounting bracket until the proper elevation

alignment is achieved. Torque the two elevation locking bolts to 20 to 25 foot-pounds (27 to

Installing the Link CX 73

34 n.m). Peak the alignment for maximum voltage at the remote antenna. Expected voltage is more than +1 VDC. The adjustment should be slowly tuned through the peak, and reset at the absolute maximum before tightening the bolts.

Alignment for each antenna should be alternated at least twice before confirming the final setting.

62 Disconnect the hand-held voltmeter and BNC test lead from the RSSI port.

63 Finger-tighten the RSSI port cap to seal the Link CX case.

64 Recheck the Link CX LEDs. See Figure 4-1 and Table 4-1 for the locations and descriptions

of the Link CX LEDs.

• When power is properly applied to the Link CX, the PWR/LCL ALARM LED will be on.

• Because the radio link has been established, the RF LINK LED should be on.

• When the DS-3 equipment is or is not transmitting data to the Link CX, the DATA LED

should be on or off, respectively.

If any of these conditions is not true, troubleshoot the associated equipment and cables.

The Link CX is now mounted and aligned. Continue with Section 4-7 for acceptance tests.

4-6.2 Integral Antenna on a Dual Adjustable Elevation Mount

Perform Step 63 through Step 68 on the local radio. Then, repeat these steps for the remote radio. See Figure 4-10 for the Dual Pole Mount illustration.

65 Remove the Link CX cap from the BNC connector of the remote radio. Attach the hand-held

voltmeter and BNC test lead to the test point.

66 Fine Azimuth Alignment -- Rotate the Link CX on its mounting bracket until the proper

azimuth alignment is achieved. Torque the four small azimuth locking bolts to 4 to 6 foot-pounds (5.5 to 8 n.m). Peak the alignment for maximum voltage at the remote antenna. Expected voltage is more than +1 VDC. The adjustment should be slowly tuned through the peak, and reset at the absolute maximum before tightening the bolts.

67 Fine Elevation Alignment -- Rotate the Link CX mounting bracket until the proper elevation

alignment is achieved. Torque the two large elevation locking bolts to 20 to 25 foot-pounds (27 to 34 n.m). Peak the alignment for maximum voltage at the remote antenna. Expected voltage is more than +1 VDC. The adjustment should be slowly tuned through the peak, and reset at the absolute maximum before tightening the bolts.

Alignment for each antenna should be alternated at least twice before confirming the final setting.

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68 Disconnect the hand-held voltmeter and BNC test lead from the RSSI port.

69 Finger-tighten the RSSI port cap to seal the Link CX case.

70 Recheck the Link CX LEDs. See Figure 4-1 and Table 4-1 for the locations and descriptions

of the Link CX LEDs.

• When power is properly applied to the Link CX, the PWR/LCL ALARM LED will be on.

• Because the radio link has been established, the RF LINK LED should be on.

• When the DS-3 equipment is or is not transmitting data to the Link CX, the DATA LED

should be on or off, respectively.

• When the Ethernet equipment is transmitting data to the Link CX, the ENET 1 or ENET 2 LEDs should be on or flashing. When the Ethernet equipment is not transmitting data to the Link CX, the ENET 1 and/or ENET 2 LEDs should be off.

If any of these conditions is not true, troubleshoot the associated equipment and cables.

The Link CX is now mounted and aligned. Continue with Section 4-7 for acceptance tests.

4-6.3 External Antenna on Antenna-Specific Mount

Perform Step 69 through Step 79 on the local radio. Then, repeat these steps for the remote radio. See Figure 4-14 for the antenna assembly and Pole Mount illustration.

Normally the antenna is aligned by performing azimuth and elevation adjustments and elevation adjustments as necessary until the peak signal is obtained. It may be helpful to re-peak one adjustment before finalizing or locking down the other.

Warning: Damage to the antenna can occur if azimuth or elevation adjustments are attempted without loosening the proper connections as described in the following steps.

71 Remove the BNC cap from the RSSI connector of the remote radio. Attach the hand-held

voltmeter and BNC test lead to the test point.

72 Be sure the mast pipe U-bolts are just loose enough to allow mount rotation while main-

taining complete contact between the mount and the mast pipe.

73 Turn the long stainless steel azimuth screws against the mounting channel. By alternately

turning one azimuth adjustment screw out and the other in, the antenna can be rotated to the desired azimuth angle. Approximately one turn changes the azimuth direction by 1°. Avoid adjusting the antenna beyond the ±5° provided by the azimuth clamp as this can damage the adjusting hardware. Fasten the antenna to the mast pipe and reposition the clamp if needed.

Note: By securing the mount to the mast pipe and realigning the azimuth clamp with the antenna boresight, more reliable and precise azimuth adjustments can be achieved.

After all adjustments are made, tighten both of the azimuth screws against the channel and secure with the lock nuts provided.

74 Tighten the mast pipe U-bolts while maintaining the peak signal by alternating from left to

right in 1/4 turn intervals.

Installing the Link CX 75

75 Insure that both of the bolts connecting the mount to the Top Support Angles and the

pivoting Elevation Angle (refer to Figure 4-20 and Figure 4-22) are just loose enough to allow resisted rotation.

76 Back the outer nuts on the elevation rod away from the bottom mount plate to allow some

fine adjustment range.

77 Turn the inside nut (with flat washer) on the elevation rod to adjust the elevation angle.

Approximately five turns changes the elevation by 1°. Remember, for elevation greater than 20°, install the two beveled washers as shown in Figure 4-22.

Alignment for each antenna should be alternated at least twice before confirming the final setting.

78 After all adjustments are made, lock the nut against the bottom mount plate. Tighten the

angle pivot bolt and support bracket bolts to the specifications listed in Table 4-8.

Important: Be sure to tighten all hardware after final adjustments and insure that split lockwashers, palnuts, or jam nuts are used where provided.

79 Disconnect the hand-held voltmeter and BNC test lead from the RSSI port.

80 Finger-tighten the RSSI port cap to seal the Link CX case.

81 Recheck the Link CX LEDs. See Figure 4-1 and Table 4-1 for the locations and descriptions

of the Link CX LEDs.

• When power is properly applied to the Link CX, the PWR/LCL ALARM LED will be on.

• Because the radio link has been established, the RF LINK LED should be on.

• When the DS-3 equipment is or is not transmitting data to the Link CX, the DATA LED

should be on or off, respectively.

If any of these conditions is not true, troubleshoot the associated equipment and cables.

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4-7 Acceptance Testing

This section describes the tests used to verify that the Link CX data input circuitry, near-end Link CX radio, radio link, and far-end Link CX radio are installed properly and operating correctly.

82 Verify that the physical installation is correct. Use Table 4-9 to sign off the individual checks.

Table 4-9 Physical Installation Checklist

Checklist Item Verified Inspector Date

Is the mounting pipe securely connected to the mounting structure?

Is the Link CX securely connected to the mounting pipe?

If equipped, is the external antenna securely connected to the mounting pipe?

Is the lightning protection above the Link CX and antenna properly grounded?

Is the Link CX properly grounded?

If equipped, is the external antenna properly grounded?

Is the lightning arrestor at the entry to the equipment enclosure properly grounded?

Is all cabling to the Link CX properly routed (no sharp bends and properly attached)?

Are all exposed connectors properly sealed against moisture?

Are all unused connectors capped off or otherwise sealed against moisture?

Is the internal or external antenna polarization correct (as indicated on the back of the unit)?

Installing the Link CX 77

83 Verify that the electrical connections are correct. Use Table 4-10 to sign off the individual

checks.

Table 4-10 Electrical Connection Checklist

Checklist Item Verified Inspector Date

Is the proper voltage supplied to the Link CX (PWR/LCL ALM LED on)?

Is the Link CX receiving signal from the radio link (RF LINK LED on)?

When the Link CX is connected to DS-3 equipment, is the Link CX receiving the expected signal (DATA LED on)?

When the Link CX is connected to Ethernet equipment on port ETHERNET 1, is the Link CX receiving the expected signal (ENET 1 LED on or flashing)?

When the Link CX is connected to Ethernet equipment on port ETHERNET 2, is the Link CX receiving the expected signal (ENET 2 LED on or flashing)?

The next series of acceptance tests requires you to log in to the built-in web server with a computer equipped with a web browser.

84 Connect your computer to the Link CX through the Ethernet equipment connected to the

ETHERNET 1 or ETHERNET 2 port.

85 Log in to the Link CX built-in web server to display the Monitor page as described in

Section 4-2.2.

86 Make sure the Automatic Tx Power Control indicated in the lower half of the Monitor page is

set to Disabled.

87 Record the RSSI indicated at the top of the Monitor page. Save this number for later

troubleshooting.

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88 Go to the Test page and verify that the Link CX passes the tests in Table 4-11.

Table 4-11 Internal Circuit and Radio Link Checklist

Checklist Item Verified Inspector Date

Does the Link CX input circuitry and DS-3/ Ethernet cabling work properly? (Set up Local + Remote Loopback and verify that the DS-3/ Ethernet equipment is receiving the looped-back signal it is transmitting to the Link CX.)

Does the Link CX radio circuitry work properly? (Set up Radio Loopback and verify that the DS-3/Ethernet equipment is receiving the looped-back signal it is transmitting to the Link CX.)

Do the near-end and far-end Link CX radio circuits and radio paths work properly? (Set up BER Test and verify that the near-end Link CX is receiving the looped-back BER test signal it is transmitting to the far-end Link CX.)

Does the end-to-end radio link work properly? (Select No Test and verify that the DS-3/Ethernet equipment at both ends of the radio link are receiving the signal transmitted to it by the remote DS-3/Ethernet equipment.)

When all of the acceptance tests in this section have been completed and all Checklist items have been verified, the Link CX radio link has been verified. The Inspector marks for all tested items constitute acceptance of the Link CX equipment and the associated radio link.

Installing the Link CX 79

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80 Link CX User Manual, Version A

Five

The user is required to finish configuring the Link CX after physical installation. The Link CX includes a built-in HTML-based web server, which includes configuration, operating, monitoring and test pages. This web server can be accessed locally using a Web browser on a Craft PC, or remotely using any Web browser on the same Ethernet network as the Link CX. The initial configuration has already been done using a Craft PC at the Link CX site, and all other operation and maintenance tasks can be performed remotely or locally, as required.

This chapter deals only with final Link CX setup using a Craft PC, and provides step-by-step configuration instructions.

This section assumes that the Link CX has already been installed and acceptance-tested as described in Chapter Four. If all the steps in Chapter Four have not been completed, complete them before starting this section.

Post Acceptance Test Configuration

Final Link CX Setup

50000

This section includes instructions on how to finish the Link CX configuration after it is installed, as described in Chapter Four. The Link CX should be in the following state:

• Powered on.

• Antenna aligned with far end antenna.

• Acceptance tested.

• No loopbacks or other tests active.

• Carrying, or capable of carrying, payload data.

• Transmit attenuation disabled.

• Transmitting at minimum required transmit power (Automatic Tx Power Control disabled,

unless required).

Final Link CX Setup 81

Final Link CX Configuration

Obtain a copy of the information entered in Table 3-3, Radio Link Planning Worksheet, and continue with the following steps:

1 Record the RSSI level from Step 85 in Chapter Four for future reference. The Step 85 value

is the RSSI level with Automatic Tx Power Control disabled.

2 Connect your computer to the Link CX through the Ethernet equipment connected to the

ETHERNET 1 or ETHERNET 2 port.

3 Log in to the Link CX built-in web server to display the Monitor page as described in

Section 4-2.2.

4 Go to the Test page, and verify that No Test is selected.

5 Go to the Commission Radio page, and verify that the entries on this page match the entries

in Table 3-3, Radio Link Planning Worksheet. Make sure the Tx Attenuation is set to No attenuation, and that Automatic Tx Power Control is set to Enable.

6 Go to the Commission Manager Interfaces page, and verify that the entries on this page

match the entries in Table 3-3, Radio Link Planning Worksheet.

You can upgrade the login security of the Link CX at this time. If you want to restrict access to the Link CX, consider the following:

• If the Link CX does not have a Login Name and Password, you can assign one now.

• If the Link CX allows login from any IP address, you may want to restrict login to only

one or two IP addresses. MAKE SURE the Craft PC IP address is included if you select this option.

• If the Link CX is set to broadcast SNMP traps to the Public community, you can restrict broadcasts to a different community.

• If the Link CX is set to broadcast SNMP traps to multiple IP addresses, you can restrict broadcasts to fewer IP addresses.

• If the Link CX is set to allow read-write access from the Public community, you can restrict read-write access to a different community.

• If the Link CX is set to allow read-write access from any or multiple IP addresses, you can restrict read-write access to fewer IP addresses.

• If the Link CX is set to allow read-only access from the Public community, you can restrict read-only access to a different community.

• If the Link CX is set to allow read-only access from any IP address, you can restrict read-only access to fewer IP addresses.

7 When required, make any security upgrades as described in Step 6.

The Link CX is now fully configured, tested, and operational, and should continue to operate unattended. Continue with Chapter Six for monitoring and trend analysis, and refer to Chapter Seven for troubleshooting information.

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Six

Monitoring and Trend Analysis

Each Link CX and radio link can be monitored through either the built-in Web server or SNMP agent interfaces.

6-1 Built-In Web Server Interface

A subset of the SNMP-accessible statistics is available through the Web server interface connected to a web browser over an Ethernet link. These statistics can be read by logging in to display the Monitor page, as shown in Appendix 3. Statistics can be repeatedly sampled using the Web browser reload or refresh feature.

The easiest indicator to monitor is the RSSI. Keep a record of the RSSI levels measured in Step 87 in Chapter Four. The Step 87 value is the RSSI level with Automatic Tx Power Control disabled (transmitting at maximum power).

A properly designed radio link with a 20 dB or greater fade margin should indicate receive levels in the area of -60 dBm at Link CX sites. The accuracy of the indicated RSSI is approximately ±5 dB over a range of -90 dBm to -65 dBm.

60000

6-2 SNMP Network and Element Management Systems

All monitored statistics are available through SNMP queries. In addition to MIB-II variables, product-specific variables are available through the Link CX enterprise MIB, which can be retrieved via FTP from F:/PUB/link_cx.mib (text file) in the Link CX file system. Most commercial SNMP NMSs and EMSs have the ability to sample variables over time and display trends and raise alarms based on defined thresholds. In addition, applicable SNMP traps are supported and can be used to raise alarms on the NMS and/or EMS.

Any standard SNMP NMS or EMS can be used to monitor and control the Link CX network and individual Link CX radios.

The Link CX has an enterprise MIB provided in standard ASCII format, which can be accessed for printing. When a software upgrade is performed, the self-extracting file places all directories and associated files necessary for the upgrade in a location specified by the operator at the time the self-extracting file is executed. One of the directories created is /PUB, which contains the printable enterprise ASCII text MIB file named link_cx.mib.

The enterprise MIB file is also stored in FLASH memory on the Link CX in F:/PUB. A copy of the link_cx.mib file can be extracted from the Link CX using an ASCII FTP file transfer.

Monitoring and Trend Analysis 83

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84 Link CX User Manual, Version A

ADC CX DS3 58G User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Welcome!

Document Organization

Microwave Radiation Warnings

Radio Warning

Antenna Warning

FCC Regulatory Information

Related Documentation

Customer Support Services

Return Materials Authorization

Traini ng

Conventions Used in this Manual

1-1 General

1-1.1 Products

1-1.2 Applications

1-2 System Overview

1-3 Features

1-4.1 Radio Links

1-4.2 Data Stream

1-4.4 Mounting and Antenna Alignment

1-4.5 Interface Connectors and Indicators

1-4.6 Cables

1-4.7 Integral Antenna

1-4.8 External Antenna

1-4.9 Configuration, Operation, and Monitoring

1-4.10 SNMP

1-4.12 NMS Connectivity

1-4.13 Web-Based GUI Access Security

1-4.14 GUI Functions

1-5 Typical Applications

1-5.1 Internet (ISP)

1-5.2 Private Network Wireless Bridged LANs and WANs

1-5.3 PCS/PCN and Cellular Networks

1-5.4 Wireless Local Loop Networks and Local Exchange Bypass

1-5.5 Business Bypass and Local Exchange Bypass

1-5.6 Backhaul for Wireless MTU and MTU Access

1-5.7 Wireless Mesh Backhaul Networks

1-5.8 Wireless ATM Mesh Distribution with StreamNet

1-6 Specifications

2-1 Installation Flow Chart

3-2 Site Planning

3-3 Planning Element and Network Management Ethernet Links

3-4 Planning DS-3 Links

3-5 Power Planning

3-6 Transmit Power Planning

3-6.2 Calculating the Required Transmit Power

3-7 Radio Link Planning

4-1 Before Installing

4-1.1 General Guidelines

4-1.2 Equipment and Unpacking

4-1.3 Packing Lists and Orderable Parts

4-1.4 Installation Tools and Materials

4-2 Initial Configuration

4-4 External Antenna Installation (Optional)

4-5.1 Mounting the Lightning Arrestor

4-5.2 Routing the Data and Power Cables from the Lightning Arrestor

4-5.4 Sealing the Data and Power Cable Connectors

4-6 Aligning the Antenna

4-6.1 Integral Antenna on a Single Adjustable Elevation Mount

4-6.2 Integral Antenna on a Dual Adjustable Elevation Mount

4-6.3 External Antenna on Antenna-Specific Mount

4-7 Acceptance Testing

6-1 Built-In Web Server Interface

6-2 SNMP Network and Element Management Systems