Tait TBCK4B Users Manual

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DRAFT 4

TB9400 base station

Installation and Operation Manual Draft in Progress

MBC-00001-01 Issue 1 September 2011

DRAFT 4

Contact Information

Tait Radio Communications Corporate Head Office

Tait Electronics Limited P.O. Box 1645 Christchurch New Zealand

For the address and telephone number of regional offices, refer to our website: www.taitradio.com

All information contained in this document is the property of Tait Electronics Limited. All rights reserved. This document may not, in whole or in part, be copied, photocopied, reproduced, translated, stored, or reduced to any electronic medium or machine-readable form, without prior written permission from Tait Electronics Limited.

The word TAIT and the TAIT logo are trademarks of Tait Electronics Limited.

All trade names referenced are the service mark, trademark or registered trademark of the respective manufacturers.

Disclaimer

There are no warranties extended or granted by this document. Tait Electronics Limited accepts no responsibility for damage arising from use of the information contained in the document or of the equipment and software it describes. It is the responsibility of the user to ensure that use of such information, equipment and software complies with the laws, rules and regulations of the applicable jurisdictions.

Enquiries and Comments

If you have any enquiries regarding this document, or any comments, suggestions and notifications of errors, please contact your regional Tait office.

Updates of Manual and Equipment

In the interests of improving the performance, reliability or servicing of the equipment, Tait Electronics Limited reserves the right to update the equipment or this document or both without prior notice.

Intellectual Property Rights

This product may be protected by one or more patents or designs of Tait Electronics Limited together with their international equivalents, pending patent or design applications, and registered trade marks: NZ409837, NZ409838, NZ508806, NZ 508807, NZ 509242, NZ509640, NZ509959, NZ 510496, NZ 511155, NZ511421, NZ516280/NZ 519742, NZ 520650/ NZ537902, NZ521450, NZ 522236, NZ 524369, NZ524378, NZ524509, NZ 524537, NZ 524630, NZ530819, NZ534475, NZ 534692, NZ 535471, NZ537434, NZ546295, NZ 547713, NZ 569985, NZ577009, NZ579051, NZ 579364, NZ 580361, AU2003281447, AU2004216984, AU2005267973, AU11677/2008, AU13745/2008, CN200930004200.4, CN 200930009301.0,

CN1031871, CN1070368, EU 000915475-0001, EU000915475-0002, GB 2386010, GB 23865476, GB2413249, GB2413445, US 5745840, US 7411461, US7649893, US10/523952, US 10/546696, US10/ 546697, US10/547964, US 10/597339, US11/572700, US29/306491, US61/218015, US 61/236663, US61/ 238769, US61/251372.

This product may also be made under license under one or more of the following U.S. Patents: 4,590,473 4,636,791 4,716,407 4,972,460 5,146,497 5,148,482 5,164,986 5,185,795 5,185,796 5,271,017 5,377,229 5,502,767. The IMBE™ voice coding Technology embodied in this product is protected by intellectual property rights including patent rights, copyrights and trade secrets of Digital Voice Systems, Inc. This voice coding Technology is licensed solely for use within this Communications Equipment. The user of this Technology is explicitly prohibited from attempting to decompile, reverse engineer, or disassemble the Object Code, or in any other way convert the Object Code into a human-readable form. Protected by U.S. Patents 5,870,405 5,826,222 5,754,974 5,701,390 5,715,365 5,649,050 5,630,011 5,581,656 5,517,511 5,491,772 5,247,579 5,226,084 and 5,195,166.

Environmental Responsibilities

Tait Electronics Limited is an environmentally responsible company which supports waste minimization, material recovery and restrictions in the use of hazardous materials.

The European Union’s Waste Electrical and Electronic Equipment (WEEE) Directive requires that this product be disposed of separately from the general waste stream when its service life is over. For more information about how to dispose of your unwanted Tait product, visit the Tait Electronics WEEE website at

www.taitradio.com/weee. Please be environmentally

responsible and dispose through the original supplier, or contact Tait Electronics Limited.

Tait Electronics Limited also complies with the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment (RoHS) Directive in the European Union.

In China, we comply with the Measures for Administration of the Pollution Control of Electronic Information Products. We will comply with environmental requirements in other markets as they are introduced.

2 TB9400 Installation and Operation Manual

DRAFT 4

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Document Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Associated Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Publication Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.2 Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.3 Mechanical Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1.4 Frequency Bands and Sub-bands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

1.5 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

1.6 Licenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

1.7 Theory of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

1.7.1 Signal Paths. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

1.7.2 Online and Offline Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

1.7.3 Intermodule Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

1.7.4 Power Management and Distribution . . . . . . . . . . . . . . . . . . . . . . . . . 23

1.7.5 PMU Operation on DC Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

1.7.6 Front Panel Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

2 General Safety and Regulatory Information. . . . . . . . . . . . . . . . . . . . . . . . . 29

2.1 Personal Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

2.1.1 Unpacking and Moving the Equipment . . . . . . . . . . . . . . . . . . . . . . . 29

2.1.2 Lethal Voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

2.1.3 AC Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

2.1.4 Explosive Environments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

2.1.5 Proximity to RF Transmissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

2.1.6 High Temperatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

2.1.7 LED Safety (EN60825-1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

2.2 Equipment Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

2.2.1 Installation and Servicing Personnel . . . . . . . . . . . . . . . . . . . . . . . . . . 31

2.2.2 Preventing Damage to the PA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

2.2.3 ESD Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

2.2.4 Anti-tampering Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

2.3 Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

2.3.1 Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

2.3.2 Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

2.3.3 Dust and Dirt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

2.4 Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

2.4.1 Distress Frequencies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

2.4.2 FCC Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

2.4.3 Unauthorized Modifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

TB9400 Installation and Operation Manual 3 © Tait Electronics Limited September 2011

DRAFT 4

2.4.4 Health, Safety and Electromagnetic Compatibility in Europe. . . . . . . . 34

3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

3.1 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

3.2 Module Indicator LEDs and Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

3.2.1 Reciter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

3.2.2 PA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

3.2.3 PMU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

4 Working with Base Stations from Your PC . . . . . . . . . . . . . . . . . . . . . . . . . 45

4.1 PC Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

4.2 Connecting Your PC to the Base Station. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

4.2.1 Logging In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

4.2.2 Setting the IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

4.2.3 Responding to Security Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

4.2.4 Connecting a Networked PC to a Base Station. . . . . . . . . . . . . . . . . . 50

4.2.5 Troubleshooting Connection Problems . . . . . . . . . . . . . . . . . . . . . . . 51

4.2.6 Finding a Lost or Forgotten IP Address . . . . . . . . . . . . . . . . . . . . . . . 52

4.3 Working with the Web Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

4.3.1 Monitoring Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

4.3.2 Viewing Configuration Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

4.3.3 Viewing the Base Station and Network Identity . . . . . . . . . . . . . . . . . 57

4.4 Basic Tasks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

4.4.1 User Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

4.4.2 Taking the Base Station Offline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

4.4.3 Troubleshooting Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

4.4.4 Working with Configuration Files . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

4.4.5 Configuring Single Base Stations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

4.4.6 Configuring Base Stations in a Channel Group. . . . . . . . . . . . . . . . . . 60

4.4.7 Setting Up Custom Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

4.4.8 Disabling the Front Panel Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

4.4.9 Preparing to Download Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

5.1 Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

5.1.1 Equipment Security. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

5.1.2 Grounding and Lightning Protection . . . . . . . . . . . . . . . . . . . . . . . . . 63

5.1.3 Equipment Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

5.1.4 Ambient Temperature Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

5.1.5 Cabinet and Rack Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

5.2 Unpacking and Moving the Subrack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

5.3 Identifying the Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

5.4 Initial Setting Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

5.4.1 Confirming Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

5.4.2 Customizing the Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

5.4.3 Changing the Root Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

5.4.4 Tuning the Reciter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

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5.5 Installing the Base Station on Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

5.5.1 Base Stations for Trunked Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

5.5.2 Equipment Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

5.5.3 Mounting the Subrack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

5.6 Connecting Up the Base Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

5.6.1 Connection Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

5.6.2 Connecting AC Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

5.6.3 Connecting DC Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

5.6.4 Connecting the Auxiliary DC Power Output . . . . . . . . . . . . . . . . . . . 83

5.6.5 Connecting RF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

5.6.6 Connecting an External Frequency Reference . . . . . . . . . . . . . . . . . . 85

5.6.7 Connecting a 1PPS Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

5.6.8 Ethernet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

5.6.9 Connecting General Purpose Inputs and Outputs . . . . . . . . . . . . . . . . 87

6 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

7 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

8 Replacing Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

8.1 Saving the Base Station’s Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

8.2 Preliminary Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

8.3 Replacing a Reciter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

8.4 Replacing a Power Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

8.5 Replacing a Power Management Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

8.6 Replacing the Front Panel Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

8.7 Replacing the Module Guide Rails . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

8.8 Replacing the Subrack Interconnect Board . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

8.9 Final Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Appendix A – Interface Pin Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109

System Interface Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Ethernet Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

PMU Auxiliary DC Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Appendix B – Inter-Module Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111

Dual 50W Base Station. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Single 50W Base Station. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

100W Base Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

TaitNet P25 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115

Tait Software License Agreement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

TB9400 Installation and Operation Manual 5 © Tait Electronics Limited September 2011

DRAFT 4

Preface

Scope of Manual

This manual provides information on installing and operating the TB9400

base station. It is intended for use by experienced technicians familiar with

installing and operating base station equipment. It also includes configuration, maintenance and troubleshooting information.

Document Conventions

The TB9400 base station has a web interface with an accordion menu on the left side of the screen. “Configure > Base Station > Channels” means click Configure in the top-level menu, then in the expanded Configure menu click the + icon beside Base Station to expand its menu tree, and finally click Channels in this menu tree to display its page.

These alert icons & definitions will change.

Within this manual, four types of alerts are given to the reader: Warning, Caution, Important and Note. The following paragraphs illustrate each type of alert and its associated symbol.

Warning!! This alert is used when there is a potential risk

of death or serious injury.

Caution This alert is used when there is a risk of minor or

moderate injury to people.

Important This alert is used to warn about the risk of equipment dam-

age or malfunction.

Note This alert is used to highlight information that is required to

ensure procedures are performed correctly.

6Preface TB9400 Installation and Operation Manual

DRAFT 4

Associated Documentation

The current set of TB9400 product documentation is provided in PDF format on the product DVD. Updates are made available on the Tait support website. Printed copies of the documentation are available on request.

■ TB9400 Specifications Manual (MBC-00002-xx).

■ TaitNet P25 System Manual (MBA-00032-xx).

■ T801-4 GPS Frequency Reference Installation and Operation Manual

(MBA-00033-xx).

Technical notes are published from time to time to describe applications for Tait products, to provide technical details not included in manuals, and to offer solutions for any problems that arise. The product DVD includes technical notes that were available at the time of release. Look for new or updated technical notes on the Tait support website.

Publication Record

Issue Publication Date Description

1 First release

TB9400 Installation and Operation Manual Preface 7 © Tait Electronics Limited September 2011

DRAFT 4

8Preface TB9400 Installation and Operation Manual

DRAFT 4

1 Description

The Tait TB9400 base station is a robust state-of-the-art digital fixed station that combines Tait’s proven strengths in reliability, high performance and modular design with software-based configurability and operation, digital signal processing and voice-over-IP technology.

The base station is designed for operation in a Project 25 trunked or trunked simulcast radio network. The ability of the base station to link stations using standard Internet Protocol communications, and to add features through software options ensures that P25 systems designed with the TB9400 are scalable in both size and functionality.

The base station combines industry-leading digital voice quality with rugged design specifications and intuitive user interfaces. These products have been designed to meet the demanding needs of the public safety and public service sectors.

Its Ethernet interface provides built-in network connectivity, allowing the TB9400 to join with other TB9400 base stations to form a channel group. This network supports voice over IP and remote management of all base

stations via a web browser.

TB9400 Installation and Operation Manual Description 9 © Tait Electronics Limited September 2011

DRAFT 4

1.1 Features

The following are some of the features of the base station:

■ Fully compliant with the Project 25 Common Air Interface. Can

■ Integrated built-in voting facility. No external voter is needed.

■ Can be completely managed remotely from a PC running a web

■ An integrated wiring solution is provided for the system control bus and

■ Reciters can be replaced without affecting the operation of other reciters

■ Rugged construction with generous heatsinks and fan-forced cooling for

therefore interoperate with any similarly compliant radios.

browser: configuration, alarm monitoring, fault diagnosis, feature and firmware upgrades.

DC power connections to each module in the subrack.

in the same subrack.

continuous operation from – 30° C to + 60° C (– 22° F to + 140° F).

10 Description TB9400 Installation and Operation Manual

DRAFT 4

1.2 Modules

The base station consists of a subrack with up to two transmit/receive channels.

The single PMU (power management unit) supplies and manages power to the whole subrack (refer to “Theory of Operation” on page 19). One reciter and one PA (power amplifier) are needed for each transmit/receive channel. There is also a front panel with user controls and fans. The modules are interconnected at the front of the subrack. External connections to the modules are located at the rear.

Modules come in different variants depending, for example, on the RF band or the supply voltage.

Each module is inserted into the 4 U subrack from the front and is secured at the front with a metal clamp. Both clamp and module are easily removed for rapid module replacement. The modules are secured laterally with plastic guides that clip into the top and bottom of the subrack. These guides can be easily repositioned to change the configuration of a subrack. The heavier modules are also secured laterally by metal tabs at the rear of the subrack.

The following provides a brief description of the available modules.

Reciter The reciter module comprises the

receiver, exciter and digital control circuitry. The reciter provides the Ethernet interface and system inputs and outputs.

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Power Amplifier The PA amplifies the RF output from the reciter and is available in 50 W

and 100 W models.

The 50 W model mounts vertically in the subrack, while the 100 W model mounts horizontally as it has a wider heatsink. The 100 W PA is also fitted with an airflow duct.

50 W PA 100 W PA

Both models are designed to operate on the 28 VDC output provided by the PMU.

Power Management Unit

The PMU provides the 28 VDC power supply for the modules in the subrack. The input voltage can be AC, DC or both AC and DC, depending on the model. The PMU also has an auxiliary DC output of 13.65 VDC,

27.3 VDC, or 54.6 VDC, depending on the model.

AC and DC PMU shown

12 Description TB9400 Installation and Operation Manual

DRAFT 4

Front Panel The front panel is mounted onto the subrack with two quick-release

fasteners. It incorporates the indicator LEDs, four-line LCD display, user controls and cooling fans.

The indicator LEDS allow some monitoring of the operational status of the

base station. The user controls and display allow the technician to configure

the IP address of each module. Refer to “Front Panel” on page 36 for more information.

Note The microphone input and speaker are not used in this release of

the TB9400.

Subrack The 4 U subrack is made of passivated steel and is designed to fit into a

standard 19 inch rack or cabinet. The subrack is fitted with an interconnect board that connects the system control bus and power to the modules and front panel. The position of a module in the subrack is defined by the socket on the subrack interconnect board to which the module is connected by the system control bus.

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1.3 Mechanical Assembly

This section illustrates the main mechanical components of the base station.

Figure 1.1 below shows the configuration for a typical dual 50 W base

station. The PMU occupies the slot at the left end of the subrack, with the

reciter and PA pairs to the right of it. Each PA is mounted vertically with its heatsink facing its associated reciter. The PMU and each reciter/PA pair have their own cooling fans.

The front panel can be easily removed from the subrack by undoing two quick-release fasteners. Refer to “Replacing Modules” on page 93 for more details.

Figure 1.1 Mechanical assembly - dual 50 W base station with front panel

b front panel i reciter 1 c subrack j module retaining clamp d PMU 1) subrack interconnect board e PA 2 1! plastic guide rail f reciter 2 1@ subrack interconnect board retaining clamp g cable retaining clip 1# front panel fastener h PA 1

14 Description TB9400 Installation and Operation Manual

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Figure 1.2 below shows the configuration for a typical single 50 W base

station. The PMU occupies its usual slot at the left end of the subrack, with

the reciter and PA pair at the right of the subrack. The PA is mounted vertically with its heatsink facing the reciter. The PMU and the reciter/PA pair have their own cooling fans.

Figure 1.2 Mechanical assembly - single 50 W base station

b PMU d reciter c 50 W PA e subrack

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Figure 1.3 below shows the configuration for a typical 100 W base station.

The PMU occupies its usual slot at the left end of the subrack, with the PA directly beside it. The reciter occupies the slot at the right of the subrack. Unlike the 50 W PAs, the 100 W PA is mounted horizontally with the heatsink facing upwards. It is also fitted with an airflow duct to channel the airflow from the cooling fan through the heatsink fins.

Figure 1.3 Mechanical assembly - single 100 W base station

b PMU e reciter c PA f subrack d airflow duct g cable retaining clip

16 Description TB9400 Installation and Operation Manual

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1.4 Frequency Bands and Sub-bands

The first release of the base station operates only on K band. Later releases will support operation on other frequency bands.

Frequency Identification Frequency Band and Sub-band

K band K4 = 762 MHz to 870 MHz

a. The actual frequency coverage in this band is:

Transmit: 762 MHz to 776 MHz, and 850 MHz to 870 MHz Receive: 792 MHz to 824 MHz

1.5 Applications

The TB9400 is designed for operation in a TaitNet P25 trunked radio network. It can operate as a single base station or as part of a channel group or simulcast channel group, and as a traffic channel or control channel.

In a trunked simulcast network, the transmitters in the channel group are synchronized and transmit simultaneously on the same frequency. Each transmitter needs a highly accurate 1 PPS pulse and an external frequency reference, so that it can time transmissions with the required accuracy. We also recommend using an NTP server at each site, as this will ensure a common timestamp in logs across all units in the system.

For more information, refer to the TaitNet P25 System Manual.

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1.6 Licenses

Some operational functions of the base station are controlled by licenses. These functions will not work unless you purchase the appropriate feature license and enable the feature set controlled by that license. The feature sets currently available are listed below.

P25 Common Air Interface

P25 Trunking Operation

Networking with Centralized Voter

Simulcast Transmitter

Simulcast Modulation

Allows the base station to go into Online mode. Base stations are always provided with this license.

Allows a base station to participate in a trunking system. Without this feature, the base station cannot provide a control or a status connection to a trunking site controller and it cannot function as a control or traffic channel.

Allows the base station to act as a central voter within its channel group. This feature also allows voice networking. Only base stations that will centrally vote (normally the central voter and its backup) need this feature. The other members of the channel group only need the networking with distributed voter feature. A standard trunked base station (standalone without fill-in repeaters or other channel group members) can function as a master or a failsoft repeater without this license.

This feature is required in base stations that have transmitters and belong to a simulcast network.

Allows the base station to transmit using the LSM modulation scheme. This scheme is designed to minimize performance degradation in simulcast channels caused by delay spread.

Failsoft for P25 Trunking

Allows trunked channels that become isolated from a site controller to perform simple conventional operation and to interface to a digital dispatch system. If a trunked channel consists of several base stations in a channel group, only the central voter (normally the master) needs this license. It is then able to become the failsoft repeater for that channel group.

Phase 2 Operation (not yet available)

18 Description TB9400 Installation and Operation Manual

This feature will allow the base station to operate in trunking mode using two-slot TDMA as defined by the P25 Phase 2 standard.

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1.7 Theory of Operation

The reciter receives RF signals from its RF input and sends RF from its RF output to the PA, along with a PA key signal. The PA sends an RF feedback signal to the reciter for linearization and power control purposes. The reciter also receives signals from, and sends signals to, the system interface, the Ethernet interface, and the front panel (see Figure 1.4).

A system control bus interconnects the modules and carries alarm and control signaling between the reciter and the other modules.

The Ethernet interface carries voice over IP and also allows maintainer access via a web browser.

Figure 1.4 Base station high-level diagram

AC Input

DC Input

*optional for non-simulcast systems

PMU

28VDC

RF To

Antenna

System Control Bus

RF + PA Key

RF Feedback

RF From

Antenna

1PPS*

Reciter

Front Panel

External

Reference

Frequency*

System Input and Output

Ethernet Interface to Network

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The reciter carries out signal processing and has overall control of the base

station. It has four boards, as shown in Figure 1.5.

Figure 1.5 Reciter boards

RF Input

RF Output

RF Input

(feedback from PA)

Receiver

Board

Transmit Forward

Board

Transmit

Reverse

Board

Reciter

Control

Board

Front Panel

System Input and Output

Ethernet Interface to Network

Maintainer Access

The receiver board contains all the receiver circuitry, while the exciter circuitry is located on the transmit forward board.

The reciter control board converts information between analog and digital and controls the maintainer’s access via the front panel. It performs the air interface signal processing for digital P25 mode, gives the base station an identity as a network element, and provides the physical connections for the Ethernet and system interfaces.

20 Description TB9400 Installation and Operation Manual

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1.7.1 Signal Paths

Figure 1.6 gives an overview of signal paths within the reciter.

Figure 1.6 Reciter signal paths

Receive RF Interface

ADC

DDC

Demodulator

Transmit RF Interface

(feedback from PA)

DAC

ADC

Cartesian

Loop

P25

Modem

Modulator

Protocol

Reciter Control Board

Stack

Control

RTP

UDP

Ethernet Interface

Digital P25 signals from the receive RF interface pass through the digital receiver and P25 modem to the control software in the RISC processor. The control software passes the signal through the Ethernet interface to the site controller, or to the central voter in a simulcast system.

Input to the Ethernet interface can be from the site controller, or from the central voter in a simulcast system. These inputs are processed by the RISC and passed through the P25 modem to the transmitter. If the base station is itself a central voter, this input can also be a received signal, which is voted on and sent back through the Ethernet interface to the site controller.

1.7.2 Online and Offline Modes

The base station normally operates in Online mode, but you can put it into Offline mode via its web interface.

Online Mode In Online mode, the base station performs its normal functions.

Offline Mode When you program the base station or run invasive diagnostic tests, the base

station must be in Offline mode. This takes the base station out of service.

However, the front panel is still operational and can be used in the normal way.

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1.7.3 Intermodule Communications

A system control bus and a subrack interconnect board link the modules in the subrack and carry alarm and control signaling between the reciter and the other modules, as shown in Figure 1.7.

Figure 1.7 Intermodule communication paths

PMU

Fan

Reciter 1/

PA 1 Fan

User

Controls

Reciter 2/

PA 2 Fan

Front Panel

PMU

I C Current

Source

Fan

μP

Subrack Interconnect Board

I C

Reciter 1

μP

RS-485

PMU Fan

PA 1

μP

RS-485I C

PA Fa n

Fan

FanFan

PA 2

μP

Reciter 2

RS-485RS-485

μP

22 Description TB9400 Installation and Operation Manual

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1.7.4 Power Management and Distribution

The PMU manages the supply of power to ensure uninterrupted operation of the base station. A range of parameters is monitored and these can trigger alarms that are sent to the reciter. Alarms can be monitored via the web interface, and are also recorded in the reciter’s internal log file.

AC to DC Changeover

When the PMU has an AC and a DC module, the base station can be powered by either the AC (mains) or the DC (battery) supply. The base

station will default to the AC supply if both supplies are provided. If the AC

supply becomes unavailable, a seamless changeover from the AC to DC supply takes place, providing that the battery voltage is above the configured minimum. You can use a web browser to check whether the base station is running on battery or mains power.

DC Operation When the base station is running off the DC supply and the battery voltage

falls below the configured minimum, the base station will enter battery protection mode to protect the battery and base station equipment. The standby power supply card maintains the power to the PMU microprocessor, while the rest of the PMU is shut down. When the battery voltage rises to the configured startup setting, power is resumed to the DC supply. Refer to

“PMU Operation on DC Input” on page 25 for more detailed information.

Auxiliary Power Control

Distribution Figure 1.8 shows how power is distributed to modules in the subrack. The

The output from the auxiliary power supply board can be used to power other site equipment. The maximum output is 40 W.

28 VDC output from the PMU is fed directly to the 100 W PA and 50 W PA1, and to the other modules via the subrack interconnect board. Power to the reciters and front panel is current-limited by self-resetting fuses on the subrack board.

The AC converter has a series switch which breaks the phase input to the converter. The DC input, however, has much higher current ratings. Its switch does not disconnect power from the DC converter itself, but disables the converter by switching off its control circuitry.

The outputs from both the AC and DC high power converters are added together and fed to the modules via the high-current outputs. The auxiliary output is also tapped off this summed output.

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Figure 1.8 Subrack power distribution for single and dual base stations

Single

Dual

DC AC

Aux. DC 28V

PMU

28V

PA Reciter

DC AC

PMU

28V

Subrack

Board

Front Panel

Subrack

Board

PA 1 PA 2 Reciter 1

Reciter 2

Front

Panel

24 Description TB9400 Installation and Operation Manual

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1.7.5 PMU Operation on DC Input

The operation of the PMU on DC input is controlled by three sets of parameters:

■ user-programmable alarms

■ user-programmable startup and shutdown limits

■ battery protection limits

The voltage range for each of these parameters is provided in Table 1.1 on

page 26. Figure 1.9 on page 27 illustrates how these parameters interact, and

how they control the operation of the PMU over a range of DC input voltages.

Alarms User-programmable alarms can be set for low or high battery voltage

(Configure > Alarms > Thresholds). The alarms will be triggered when the set voltage levels are reached. These limits are subject to the tolerances of the battery protection circuitry, as stated in “Battery Protection (Fail-safe) Limits” in Table 1.1.

Startup and Shutdown Limits

Battery Protection Limits

The user-programmable startup and shutdown limits allow for adjustable startup and shutdown voltages (Configure > Base Station > Miscellaneous). These limits can be adjusted for different numbers of battery cells, or for the particular requirements of the base station operation. Once the limits are reached, the PMU will shut down. These limits are subject to the tolerances of the battery protection circuitry, as stated in “Battery Protection (Fail-safe) Limits” in Table 1.1.

Important It is possible to set the startup voltage of the base station

below the nominal voltage of the battery. Continuing to use a battery for extended periods when it is below its nominal voltage will severely shorten its service life. For more infor mation on battery management, we recommend that you consult the battery manufacturer.

The battery protection limits are set in hardware at the factory, and cannot be adjusted by the user. These limits will not be reached under normal operation conditions, but are provided as “fail-safe” measures to protect the battery from deep discharge. They also remove the need for low-voltage disconnect modules.

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Table 1.1 PMU DC voltage limits

Parameter

User-programmable Alarms

Low Battery Voltage High Battery Voltage

User-programmable Limits

Startup Voltage (after shutdown) Shutdown Voltage

Battery Protection (Fail-safe) Limits

Startup Voltage Undervoltage Shutdown Overvoltage Shutdown Overvoltage Shutdown Reset

a. The information in this table is extracted from the Specifications Manual. Refer to the latest issue of this manual

for the most up-to-date and complete PMU specifications.

b. Using the base station’s web interface.

c. These limits are subject to the tolerances of the battery protection circuitry.

Voltage Range

12 V PMU 24 V PMU 48 V PMU

10 V to 14 V 14 V to 17.5 V

10.9 V to 15 V ± 0.3 V 10 V to 13.5 V ± 0.3 V

10.8 V +

9.5 V +

18.1 V +0.3 V

17.1 V +

0.2 V

0.3 V

20 V to 28 V 28 V to 35 V

21.8 V to 30 V ± 0.3 V 20 V to 27 V ± 0.3 V

21.6 V + 19 V +

36.2 V +0.5 V

34.2 V +

0.5 V

40 V to 56 V 56 V to 70 V

43.6 V to 60 V ± 0.3 V 40 V to 54 V ± 0.3 V

43.2 V + 1 V

38 V +

72.4 V +1 V

68.4 V +

1 V

26 Description TB9400 Installation and Operation Manual

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Figure 1.9 PMU alarm thresholds and voltage limits when operating on DC

Time

DC Input Voltage

Overvoltage Shutdown (HW)

Overvoltage Shutdown Reset (HW)

High Battery Voltage Alarm (SW Alarm)

Startup Voltage (SW)

Startup Voltage (HW)

Shutdown Voltage (SW)

Undervoltage Shutdown (HW)

Low Battery Voltage Alarm (SW Alarm)

30s delay 30s delay 30s delay

Run

Hardware Behaviour

Stop

Run

Software Control &

Hardware Combined

Stop

Software Alarm

Off

Active

Software Alarm

(Low Battery Voltage)

Off

Active

(High Battery Voltage)

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1.7.6 Front Panel Fans

The front panel is equipped with three fans. One fan is for the PMU and the other two are for the reciter/PA pairs in a 50 W base station, or for the PA and reciter in a 100 W base station. Front panel fans do not operate continuously but are switched on and off as needed by the reciter firmware. Each reciter controls the fan it shares with its PA, and reciter 1 also controls the PMU fan. Under certain conditions the PMU and each PA can override the reciter and assume control of its own fan.

Front panel fans are 3-wire fans (power, ground, and rotation detect). The reciter can monitor whether the fans are rotating and generate an alarm if the fan fails.

The fans turn on for a few seconds when the base station is powered up, and also after the front panel is refitted to a base station which is powered up.

Configuring Fan Control

The operation of the PA fan is configurable via the web interface; you can specify the threshold temperature at which the fan will be turned on, and set the fan to operate only when the PA is transmitting.

The PMU fan has fixed on/off thresholds and a defined set of duty cycles based on the PMU temperature, as described in the following table:

PMU Temperature Fan Duty Cycle

<149 °F (65 °C) Increases as the load on the PMU

increases

149-167 °F (65-75 °C) On for two minutes, off for one minute

>167 °F (75 °C) Always on

28 Description TB9400 Installation and Operation Manual

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2 General Safety and Regulatory

Information

This chapter provides general information on safety precautions for operating the base station.

2.1 Personal Safety

2.1.1 Unpacking and Moving the Equipment

To prevent personal injury and equipment damage, we recommend that two people unpack and move the equipment.

Caution A subrack complete with modules can weigh up to

2.1.2 Lethal Voltages

Warning!! The PMU contains voltages that may be lethal.

The equipment must be installed so that the rear of the PMU is located in a service access area which is accessible only by qualified personnel. The PMU must be connected to the mains supply source by qualified personnel in accordance with local and national regulations.

55 lb (25 kg), or up to 62 lb (28 kg) complete with packaging. We recommend that you have another person help you unpack and move the equipment. The TBAA03-16 carrying handles will make it easier to move the equipment once it has been unpacked. If necessary, remove the modules from the subrack before moving it (refer to “Replacing Modules” on

page 93). In all cases follow safe lifting practices.

Refer to the ratings label on the rear of the module.

Disconnect the mains IEC connector and wait for five minutes for the internal voltages to self-discharge before dismantling. The AC power on/off switch does not isolate the PMU from the mains. It breaks only the phase circuit, not the neutral.

The PMU should be serviced only by qualified technicians. There are no user-replaceable parts inside. If the PMU is damaged and does not function

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properly, stop the module safely and contact your regional Ta it office immediately.

All servicing should be carried out only when the PMU is powered through a mains isolating transformer of sufficient rating.

2.1.3 AC Power Connection

English (en) The PMU must be connected to a grounded mains

Norsk (no) Apparatet må tilkoples jordet stikkontakt.

Suomi (fi) Laite on liitettävä suojamaadoitus-koskettimilla

Svenska (sv) Apparaten skall anslutas till jordat uttag.

socket-outlet.

varustettuun pistorasiaan.

2.1.4 Explosive Environments

Warning!! Do not operate the equipment near electrical

blasting caps or in an explosive atmosphere. Operating the equipment in these environments is a definite safety hazard.

2.1.5 Proximity to RF Transmissions

Do not operate the transmitter when someone is standing within 3 ft (90 cm) of the antenna. Do not operate the transmitter unless you have checked that all RF connectors are secure.

2.1.6 High Temperatures

Take care when handling a PMU or PA which has been operating recently. Under extreme operating conditions (+ 140° F [+60° C] ambient air temperature) or high duty cycles, the external surfaces of the PMU and PA can reach temperatures of up to + 176° F (+ 80° C).

2.1.7 LED Safety (EN 60825-1)

This equipment contains Class 1 LED Products.

30 General Safety and Regulatory Information TB9400 Installation and Operation Manual

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2.2 Equipment Safety

2.2.1 Installation and Servicing Personnel

The equipment should be installed and serviced only by qualified personnel.

2.2.2 Preventing Damage to the PA

The base station has been designed to operate safely under a wide range of antenna loading conditions. Transmitting into a low VSWR will maximize the power delivered to the antenna.

Important Do not remove the load from the PA while it is

transmitting.

Load transients (switching or removing the load) or atmospheric disturbances (for example rain static and electrical storms) can damage the PA output stage. See “Connecting RF” on page 84 for recommendations.

2.2.3 ESD Precautions

Important This equipment contains devices which are susceptible to

We recommend you purchase an antistatic bench kit from a reputable manufacturer and install and test it according to the manufacturer’s instructions. Figure 2.1 shows a typical antistatic bench set-up.

You can obtain further information on antistatic precautions and the dangers of electrostatic discharge (ESD) from standards such as ANSI/ESD S20.20-1999 or BS EN 100015-4 1994.

Figure 2.1 Typical antistatic bench set-up

common point ground (building ground or mains ground)

dissipative rubber bench mat

damage from static charges. You must handle these devices carefully and according to the procedures described in the manufacturers’ data books.

conductive wrist strap

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2.2.4 Anti-tampering Devices

All network elements should be physically secured, where possible. This includes the use of locked cabinets and the use of seals on connectors.

All network and audio connectors should be sealed with the stick-on type of seal. The purpose of the seals is to detect unauthorized tampering. The seal should reveal if any of the connectors have been unplugged or if any unauthorized equipment has been plugged in.

The seals must be difficult to remove without breaking, and must bridge between the cable and equipment side (plug and socket) of the connection.

Seals must cover any unused network or audio sockets. This includes the Ethernet connector on the rear panel, any spare switch ports, and the console port on the router and switch.

The seals must be difficult to reproduce. A sticker initialed or signed by the technician should satisfy this.

Seals must be replaced if they need to be disturbed during maintenance.

2.3 Environmental Conditions

2.3.1 Operating Temperature Range

The operating temperature range of the equipment is – 22°F to + 140°F (– 30°C to + 60°C) ambient temperature. Ambient temperature is defined as the temperature of the air at the intake to the cooling fans.

2.3.2 Humidity

The humidity should not exceed 95% relative humidity through the specified operating temperature range.

2.3.3 Dust and Dirt

For uncontrolled environments, the level of airborne particulates must not exceed 100 µg/m

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2.4 Regulatory Information

2.4.1 Distress Frequencies

The 406 to 406.1 MHz frequency range is reserved worldwide for use by Distress Beacons. Do not program transmitters to operate in this frequency range.

2.4.2 FCC Compliance

This equipment complies with:

■ CFR Title 47 Part 15 Class B (except PMU):

Radiated and conducted emissions, and electromagnetic susceptibility specifications of the Federal Communications Commission (FCC) rules for the United States. Operation is subject to the following two conditions:

a. This device may not cause harmful interference, and

b. This device must accept any interference received, including

interference that may cause undesired operation.

■ CFR Title 47 Part 15 Class A (PMU only):

a. This device may not cause harmful interference, and

b. This device must accept any interference received, including

interference that may cause undesired operation.

2.4.3 Unauthorized Modifications

Any modifications you make to this equipment which are not authorized by Tait Electronics Limited may invalidate your compliance authority’s approval to operate the equipment.

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2.4.4 Health, Safety and Electromagnetic Compatibility in Europe

In the European Community, radio and telecommunications equipment is regulated by Directive 1999/5/EC, also known as Radio and Telecommunications Terminal Equipment (R&TTE) directive. The requirements of this directive include protection of health and safety of users, as well as electromagnetic compatibility.

Intended Purpose of Product

Declaration of Conformity

This product is a radio transceiver. It is intended for radio communications in the Private Mobile Radio (PMR) or Public Access Mobile Radio (PAMR) services, to be used in all member states of the European Union (EU) and states within the European Economic Area (EEA). can be programmed to transmit on frequencies that are not harmonized throughout the EU/EEA, and will require a licence to operate in each member state.

You can download the formal Declaration of Conformity from http://eudocs.taitradio.com/. You can also obtain a signed and dated paper copy of the Declaration of Conformity from Tait Electronics Limited.

This product

34 General Safety and Regulatory Information TB9400 Installation and Operation Manual

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3 Operation

This section describes the user controls and indicator LEDs on the front panel and on the base station modules.

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3.1 Front Panel

The user controls and indicator LEDs on the front panel are shown in

Figure 3.1. They allow some manual control over the base station and

monitoring of its operational status.

Note If there is more that one reciter in a subrack, inputs from all recit-

ers are summed to drive the front panel LEDs.

Figure 3.1 Operating controls on the control panel

b c

b speaker f receive LED c microphone connector g transmit LED d power LED h keypad e alarm LED i display

Speaker and Microphone Connector

Power LED The green power LED is lit when power is supplied to the subrack.

Alarm LED The red alarm LED will flash at a rate of 2 to 5 Hz when an alarm has been

The speaker and microphone connector are not used in this release of the

base station.

generated by any of the base station modules. It will continue to flash until the alarm is canceled or the fault is fixed. Note that only those alarms which are enabled using the web interface will cause this LED to flash.

LED Description

On (steady) The base station is in Offline mode (regardless of the presence of

any fault).

Flashing The base station is in Online mode, and one or more faults are

present.

Off The base station is in Online mode, and no faults are present.

36 Operation TB9400 Installation and Operation Manual

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Receive LED The amber receive LED indicates whether the base station is receiving a

Transmit LED The amber transmit LED is lit while the transmitter is transmitting.

Keypad The keypad is used to navigate the base station’s menus, enter text, and to

valid RF signal.

LED Description

On (steady) The base station is receiving a valid RF signal.

Off The base station is not receiving a valid RF signal.

adjust the contrast of the display. The complete list of menu items is provided in “Menu Map” on page 39.

If required, the keypad can be disabled in the web interface to prevent access to the base station via the front panel menus (see “Disabling the Front Panel

Keypad” on page 60).

Key Name Function

left and right arrow keys

scroll keys

home

return

■ Move the cursor to the left or right when entering text. Moving the cursor

beyond the end of a line will return it to the other end of the same line.

■ Decrease or increase the contrast in the Display Contrast screen.

■ Scroll up and down through a list of menu items.

■ Scroll up and down through the list of available characters when entering

text.

■ Increase or decrease the contrast in the Display Contrast screen.

■ Selects the highlighted menu item.

■ Confirms any adjustments made and exits to the previous menu.

■ When setting the IP address, moves the cursor down one line. When all

the IP addresses are confirmed, exits to the previous menu.

■ Returns to the idle screen from any other menu.

■ Returns to the previous menu.

■ Moves the cursor up one line in the IP address screen. When the top line is

reached, pressing again returns to the previous menu.

Note Unlike a computer keyboard, the keys do not auto-repeat. Each

action requires a separate key-press.

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Display The display is used in conjunction with the keypad to access the base

station’s menus. It allows the technician to configure the IP address of each

reciter (refer to “Setting the IP Address” on page 48), and to set the contrast of the display (see below).

After the base station is powered up, the display shows “Please wait . . .” while the base station is starting up, followed by the idle screen when the start-up process is complete. If the front panel loses communication with reciter 1, the display also shows “Please wait . . .”, and the alarm LED flashes. If the base

station is activating new firmware, the display is blank and the power LED

flashes. The idle screen shows four lines of user-defined text, which can be entered via the web interface (Identity > Identity > Base Station Identity).

From the idle screen press an ar row key, a scroll key or OK to go to the base

station menu. The display returns to the idle screen from any other screen

30 seconds after the last key press. Press any key to turn on the backlight. The backlight turns off 30 seconds after the last key press.

Note If the keypad has been disabled, pressing an arrow key, a scroll key

or OK will cause the display to show “Keypad Disabled”.

Set the display contrast as follows:

1. From the base station menu select Modules > Front Panel > Contrast.

2. To increase the contrast, press the right arrow or scroll up key. To decrease the contrast, press the left arrow or scroll down key.

3. When the contrast is set to the required level, press OK to save the changes and exit the menu.

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Menu Map The menu map below shows the menu items available in this release of the

base station.

Note The menu map shown is for a single base station. The menu items

available in your base station will depend on the modules present in the subrack.

Idle Screen

Base Station

Modules

Reciter 1 Reciter 2 Front Panel

Reciter 1

View Reciter 1 Address Edit Reciter 1 Address

Front Panel

Contrast

View Reciter 1 Address

IP: 172.025. 198.043 MASK: 255.255. 000.000 GW: 172.025. 002. 251

Edit Reciter 1 Address

IP: 172.025. 198.043

MASK: 255.255. 000.000 GW: 172.025. 002. 251

Contrast

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3.2 Module Indicator LEDs and Switches

Additional status information is displayed by LEDs in individual modules. The PMU also has switches that let you turn the AC and DC modules off.

3.2.1 Reciter

Front View The indicator LEDs on the front of the reciter are visible through a slot in

its front panel.

Figure 3.2 Indicator LEDs on the front of the reciter

b indicator LEDs

These LEDs provide the following information about the state of the reciter:

■ steady green - the reciter is powered up

■ flashing red - one or more alarms have been generated; you can use the

web interface to find out more details about the alarms.

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Rear View The indicator LEDs on the rear of the reciter are on the Ethernet connector.

Figure 3.3 Indicator LEDs on the rear of the reciter

b indicator LEDs

These LEDs provide the following information about the state of the reciter:

■ steady amber - the Ethernet interface is connected

■ flashing green - data is being transmitted across the Ethernet interface.

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3.2.2 PA

The indicator LEDs on the PA are visible through a slot in its front panel.

Figure 3.4 Indicator LEDs on the PA

50 W PA 100 W PA

b indicator LEDs

Indicator LEDs These LEDs provide the following information about the state of the PA:

■ steady green - the PA is powered up

■ flashing green - the PA has no application firmware loaded or activated;

you can use the web interface to download or activate the firmware; also see “Preparing to Download Firmware” on page 61

■ flashing red - one or more alarms have been generated; you can use the

web interface to find out more details about the alarms.

Note The alarm LED will flash whenever an alarm is generated,

whether or not this alarm has been disabled via the web interface.

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3.2.3 PMU

The only controls on the PMU are the on/off switches on the rear panel for the AC and DC modules, and the indicator LEDs visible through a slot in its front panel.

Figure 3.5 Operating controls on the PMU

rear view

front view

b AC module on/off switch d indicator LEDs c DC module on/off switch

Warning!! The AC and DC module on/off switches do not

totally isolate the internal circuitry of the PMU from the AC or DC power supplies. You must disconnect the AC and DC supplies from the PMU before dismantling or carrying out any maintenance. Refer to the service manual for the correct servicing procedures.

AC Module On/Off Switch

This switch turns the AC input to the PMU on and off. Note that this switch breaks only the phase circuit, not the neutral.

Note On switches fitted to PMUs up to November 2008, the red button

is “in” when on, and “out” when off. On switches fitted from November 2008 onwards, the red button remains “out” whether on or off.

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DC Module On/Off Switch

This switch turns the DC output from the PMU on and off. Note that this switch does not disconnect power from the DC converter itself. It disables the converter by switching off its control circuitry. Even when the DC converter is off, the DC input is still connected to its power circuitry.

The switch is recessed to prevent the DC module being accidentally switched off, thus disabling the battery back-up supply.

Indicator LEDs These LEDs provide the following information about the state of the PMU:

■ steady green - the PMU is powered up

■ flashing green - the PMU has no application firmware loaded or

activated; you can use the web interface to download or activate the firmware; also see “Preparing to Download Firmware” on page 61

■ flashing red - one or more alarms have been generated; you can use the

web interface to find out more details about the alarms.

Note The alarm LED will flash whenever an alarm is generated,

whether or not this alarm has been disabled via the web interface.

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4 Working with Base Stations from Your

The normal web browser on your PC provides a window into the TB9400

base station. Use it to connect to the base station so that you can monitor,

configure, diagnose, and calibrate it (if required).

This section describes the following:

■ Connecting to the base station, including initially setting things up.

■ Wo r k i n g w i t h base station web pages.

■ Carrying out basic tasks.

This section provides an overview of some aspects of the web interface. Refer to the Help for detailed instructions.

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4.1 PC Recommendations

We recommend the following PC hardware and software for connecting to a TB9400 base station:

■ SVGA Monitor (1024 x 768 minimum).

■ Network connection.

■ Mozilla Firefox version 3.6 and later, Microsoft Internet Explorer

version 8 and later.

Note We h a ve t e s t e d t h e base station with Firefox 3.6 and Internet

Explorer 8. If you encounter problems with your web browser, change to one of these browsers.

4.2 Connecting Your PC to the Base Station

You connect to a base station using your web browser. Using multiple browser windows or tabs, you can view more than one base station and more than one page of any base station at once. Base stations have a web-based interface that provides the pages you view. Up to five users may be logged in to a base station at once.

The base station has three different user access levels: Administrator, Maintainer, and Guest. Passwords can be defined for the Administrator and Maintainer levels. This is don e us in g th e base station’s web interface (Tools > Tools > User Administration). Refer to the Help for more information on setting user access levels.

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4.2.1 Logging In

1. Enter the base station’s URL into your browser: the default address is

Verify default address.

Note If access to this menu on the front panel has been disabled, you can

2. A security warning appears when you connect for the first time.

3. The login screen appears.

https://192.168.1.2 find out the base station’s IP address, on the front panel select Modules > Reciter 1 (or 2) > View Reciter 1 (or 2) Address. To set the IP address, refer to “Setting the IP Address” on page 48.

find out the IP address by .....how??

Proceed anyway (refer to “Responding to Security Warnings” on

page 49).

(note the use of a secure-socket connection). To

4. Enter your user name and password. When connecting for the first time, enter the user name “admin” and password “tbc_admin”.

5. Click Login.

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4.2.2 Setting the IP Address

Before the base station is installed on site, you need to provide it with its proper IP address. Make sure that you do not lose this address. A quick way to set the base station’s IP address is to use the front panel, as described below.

Note If access to this menu on the front panel has been disabled, log in

to the base station and set the IP address using the web interface (Identity > Identity > Network Identity).

1. Use the front panel display to enter the IP address, subnet mask and gateway specified for this base station by the IP addressing plan for the network. From the base station menu select Modules > Reciter 1 (or 2) > Edit Reciter 1 (or 2) Address. If the idle screen is showing, press an arrow key, a scroll key or OK to clear it.

Important In this screen each octet in the address lines has provision

for three characters. If an octet in the address has less than three characters, enter one or two leading zeroes so that each position is filled, even though the zeroes are not part of the address. For example, enter 172.25.506.47 as

172.025.506.047. Leading zeroes are removed when the address is programmed into the base station.

2. Set each address as described below. Use the left and right arrow keys to move the cursor across each line in the Addresses screen. Use the scroll keys to scroll through the available numbers for each position in a line.

a. Set the IP address and press OK. This moves the cursor to the next

line. To move the cursor back to the previous line, press the return key.

b. Set the Mask address and press OK.

c. Set the Gateway address and press OK.

d. The display shows “Setting Reciter 1 (or 2) address Please wait...”

while the base station confirms that the addresses are correct. When this process has finished, the display will show “

SUCCEEDED” or “FAILED” as appropriate. Press OK to return to

the previous menu.

3. If the process failed, try entering the address again. It it still fails, try the following:

■ enter the address through the web interface

■ check that the IP address you are trying to enter is not already in

use by another device on the same subnet.

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4.2.3 Responding to Security Warnings

When your browser connects to a TB9400 for the first time, it raises a security warning. Normally, secure websites have a security certificate issued by a trusted Certification Authority. This is to foil attempts by rogue websites to pretend to be something they are not. Obtaining such certificates is impractical for each installed TB9400, so a self-signed certificate is created when the reciter’s firmware is installed.

Your browser raises a security warning because the security certificate was not issued by a trusted Certification Authority. The browser has a way of letting you override or bypass the security warning. In Internet Explorer, you install a certificate, in Mozilla Firefox you add an exception, and in Google Chrome you elect to proceed anyway.

You can be confident that you are not connecting to a rogue website pretending to be your TB9400, so follow the procedure below to tell the browser that the security certificate is OK. The browser then stores the security certificate and will not raise a warning on subsequent connections, unless the IP address of the TB9400 changes or you use a different URL such as https://127.0.0.1. For more information, refer to

http://support.microsoft.com/kb/931850 (Internet Explorer) or search for

“security certificate” in your browser’s Help.

Firefox 1. When the message “This Connection is Untrusted” appears, click

I Understand the Risks.

2. Click Add Exception.

3. The Location field includes details specific to your TB9400. Without

changing the default values, click Confirm Security Exception.

Internet Explorer 1. Click Continue to this website (not recommended).

2. Click Certificate Error.

3. Click View certificates. The Certificate dialog box, General tab is

displayed.

4. Click Install Certificate and then follow the Certificate Import

Wizard to install the certificate. Proceed to the end without changing the default values. When the Security Warning window appears, click Yes.

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4.2.4 Connecting a Networked PC to a Base Station

You may want to temporarily disconnect a networked PC from its LAN in order to be able to establish a direct connection with the base station. A physical connection is needed as well as an alternate (Windows 7, Windows Vista, Windows XP) or temporary (Windows 2000) IP address and subnet mask.

Windows 7 or Windows Vista

1. Remove the local area Ethernet connection and connect an Ethernet patch cable between the PC and the base station. You can use either a straight through or crossover Ethernet patch cable with the current

base station firmware.

2. Navigate to Control Panel > Network and Internet > Network and Sharing Center.

3. Click View status.

4. In the Local Area Connection Status dialog box, click Properties.

5. In the Local Area Connection Properties dialog box, click Internet Protocol Version 4 (TCP/IPv4), and then click Properties.

6. Click Alternate Configuration.

7. Select the User configured option, and then enter a number that is on the same subnet as the base station. For example, if the TB9400 has IP 192.168.1.2, enter 192.168.1.1 for the PC.

8. Enter a suitable subnet mask, for example 255.255.255.0. The web browser should now be able to connect to any physically connected base station that is on the same subnet.

9. Once the web browser session is finished, re-connect the local area network cable to the PC. The PC then uses its normal TCP/IP properties.

Windows XP Professional

50 Working with Base Stations from Your PC TB9400 Installation and Operation Manual

base station firmware.

2. Click Start > Settings > Control Panel.

3. Double-click Network Connections.

4. Double-click the Local Area Network icon.

5. Click Properties.

6. Click Internet Protocol (TCP/IP), and then click Properties.

7. Click Alternate Configuration.

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8. Select the User configured option, and then enter a number that is on

the same subnet as the base station. For example, if the TB9400 has IP 192.168.1.2, enter 192.168.1.1 for the PC.

9. Enter a suitable subnet mask, for example 255.255.255.0.

The web browser should now be able to connect to any physically connected base station that is on the same subnet.

10. Once the web browser session is finished, re-connect the local area

network cable to the PC. The PC then uses its normal TCP/IP properties.

Windows 2000 1. Remove the local area Ethernet connection and connect an Ethernet

patch cable between the PC and the base station. You can use either a straight through or crossover Ethernet patch cable with the current

base station firmware.

2. Select Start > Settings > Network and Dialup Connections.

3. Double-click the Local Area Connection icon.

4. Click Properties.

5. Click Internet Protocol (TCP/IP), and then click Properties.

6. Note the current settings so that you can restore them later.

7. Select Use the following IP address, and then enter a number that

is on the same subnet as the base station. For example, if the base

station has IP 192.168.1.2, enter 192.168.1.1 for the PC.

8. Enter a suitable subnet mask, for example 255.255.255.0.

The web browser should now be able to connect to the base station.

9. When you have finished the web browser session, re-connect the

local area network cable to the PC and then restore the original PC configuration. When you close the Network connection dialog box, the restored configuration is applied.

4.2.5 Troubleshooting Connection Problems

If the attempt to connect to a base station failed, consider these possible causes.

1. Your PC is part of your organization’s LAN and does not belong to

the same subnet as the base station. Give the PC a suitable IP address and subnet mask as described in “Connecting a Networked PC to a

Base Station” on page 50.

2. You are attempting to connect to the wrong IP address. Check that

the IP address is correct.

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Note You can quickly check the base station’s IP address via the front

panel, as long as access to this menu has not been disabled.

3. The link to the base station is down. Use ping to check.

4. You may have to bypass the proxy in your organization’s LAN to access the TaitNet P25 Network. Ask your system administrator to give you access.

4.2.6 Finding a Lost or Forgotten IP Address

What do you do if access to this front panel menu has been blocked via the web interface?

Use the following procedure if an IP address has been lost or forgotten.

1. Mount the reciter in a TB9400 subrack and fit the front panel. Power

up the subrack.

2. On the front panel display select Modules > Reciter 1 (or 2) > View

Reciter 1 (or 2) Address.

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4.3 Working with the Web Interface

This section provides an overview of the web interface. Refer to the Help for detailed instructions.

When you connect to a base station, the browser displays a page like the following.

Accordion menu

Status bar Click your user

Alarm status. Click System Status to go to the Alarms screen.

Model and name of

base station

name to change your password and user settings

Click to disconnect

Mode (online or offline). Click Mode to go to the screen where you can change mode.

The accordion menu on the left gives you access to the various pages. Click a top level item (such as Configure) to open up its menu. Click the + icon ( ) on a m e nu item t o expan d the me nu t re e and t h e – ic o n ( ) to co llapse it again. Click an item in an expanded menu tree to display its page.

You can have more than one page open at the same time. Right-click an item on the menu and select “Open link in new tab” or “Open link in new window”. You can also wheel-click an item to open it in a new tab.

Press F11 for a full-screen display of the browser which does not show toolbars and other information. Press F11 again to return to the standard view.

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4.3.1 Monitoring Operation

Using the monitoring pages, you can see how the base station is currently operating.

For example, you can see the status of its trunking interface (Monitor > Interfaces > Trunking).

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4.3.2 Viewing Configuration Settings

The base station has many configuration settings that personalize it for its particular role in the network. Some settings, such as those for the trunking interface (Configure > Network Interfaces > Trunking), always apply.

Others are channel-based so that they can be dynamically changed. To view these, you first need to know the channel that the base station is operating on. Select Identity > Identity > Base Station to see its default channel number. Then you can view the base station’s channel configuration settings. Select Configure > Base Station > Channels to view the list of channels.

Select a channel and click Edit to view details of the channel. Clicking directly on any text in a line will also open the edit screen.

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Channel and signaling settings are grouped together in profiles. The channel configuration indicates the number of the currently active profile. To view the channel profile settings, select Configure > RF Interface > Channel Profiles and then click the relevant profile number.

Proceed in a similar way to view signaling profile and channel group settings.

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4.3.3 Viewing the Base Station and Network Identity

Each base station in a network has a unique base station and network identity.

Select Identity > Identity and then Base Station or Network to view details such as name, receiver number, default channel and network addresses. Note that the Host Name field has a maximum of 63 characters, and may use the characters a – z, 0 – 9, dot and hyphen.

You can also enter here the four lines of information you want to appear on the front panel display (at start-up and when idle). Each line has a maximum of 20 characters.

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4.4 Basic Tasks

4.4.1 User Settings

Click on your user name in the top right corner of the page to choose whether the temperature is displayed in Fahrenheit or Celsius, and to change your password.

4.4.2 Taking the Base Station Offline

You may need to take the base station offline in order to carry out diagnostic tests or to take it out of service if a fault develops.

1. Click Mode on the status bar (or Select Tools > Tools > Base Station).

2. Under Control, select Offline. Click Offline to confirm the change. In the Status area, the Mode display changes first to “Changing”, and then to “Offline” ( ).

4.4.3 Troubleshooting Alarms

If the Alarm status on the status bar displays red, one or more alarms have been triggered, and the Alarms menu automatically expands to display the alarm(s). Click Help and navigate to the description of that alarm.

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4.4.4 Working with Configuration Files

At any time, you can save the current configuration settings as a file (Tools > Tools > Configurations). This is stored in the base station, but you can download it and store it on your computer as an off-site backup. The

base station identity and network identity are not saved as part of the

configuration file.

You may want to develop a master configuration and upload it to all base

stations in the network, The master configuration can contain all the

different channel configurations and can be common to all base stations. The

base station identity selects the default channel.

4.4.5 Configuring Single Base Stations

Most base stations in non-simulcast trunked networks are single. They interface to a site controller but not to other base stations. The following explains the special considerations when configuring single base stations.

Channel Group Membership

Although single base stations are not actually part of a channel group, their channel configurations (Configure > Base Station > Channels) must still select a channel group (Configure > Channel Group > Channel Groups).

Channel Group IP Address

The selected channel group must be configured for single base station operation. Specify 127.0.0.1 as the channel group IP address. This stops the

base station from attempting to send voice packets to other base stations.

Preamble Although the single base station’s transmitter does not receive voice packets

from other channel group members, it still receives them from other base

stations via trunking controllers. So, while most channel group settings have

no effect, the preamble setting still applies and determines how large the transmit buffer is.

The default setting of 40 ms is intended for internal jitter only. If the base

station is a traffic channel, you may have to increase the preamble. Voice

arriving at the base station’s trunking interface has travelled from another

base station via the trunking site controller and could have significantly more

jitter.

Marshalling Duration

If the base station is a control channel, the channel group settings should specify fixed marshalling and allow a duration of 40 ms. This gives the control channel’s transmitter an appropriate buffer (control channels do not use the preamble to regulate the transmit buffer). Marshalling duration does not apply to traffic channels.

Trunking Interface Single base stations need a control connection to their site controller. A

single base station interfaces to the site controller in the same way as the

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master base station in a trunked channel group. Select Configure > Network Interfaces > Trunking to configure this.

4.4.6 Configuring Base Stations in a Channel Group

You can configure the way the base station behaves in its channel group. Also, qualified network engineers can change DSCP assignments, so that routers and switches provide a different quality of service to different types of IP packets.

In trunked networks, many base stations are single and not actually part of a channel group. However, they still must be assigned to a channel group configuration and some of its parameters must be set correctly.

4.4.7 Setting Up Custom Alarms

Each of the base station’s 12 digital inputs can be used to raise a custom alarm when the input goes high or low. The Custom Alarms form (Configure > Alarms > Custom Alarms) allows you to assign a name to each custom alarm, and to configure whether the alarm is triggered when the digital input goes high or low.

Custom alarms are used to provide an alarm when an external event activates a digital input. You can rename any of the available alarms to provide a more meaningful name, such as “Door open”.

4.4.8 Disabling the Front Panel Keypad

You can disable the front panel keypad to prevent access to the base station via the front panel menus. Select Configure > Base Station > Miscellaneous and in the Front Panel area clear the Keypad enabled check box.

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4.4.9 Preparing to Download Firmware

New versions of base station firmware are remotely downloaded to base

stations from a package server. A package server is a basic web server

application. The product DVD provides the Mongoose web server.

Note You do not have to install Mongoose to make it work, because

mongoose-3.0.exe is a self-sufficient executable file.

You can set up a single PC to be the central package server for all the base

stations on the network using mongoose or any web server. You can also use

a laptop as a temporary package server.

To set up a PC as a package server, proceed as follows.

1. Insert the product DVD in the computer’s DVD drive.

2. If the DVD does not autorun, navigate to the DVD’s root folder and

double-click mongoose-3.0.exe. An “m” icon appears in the system tray to indicate that the package server is running.

3. If the PC is to be the central package server, configure each base

station with the package server’s IP address and port.

a. Select Configure > Base Station > Miscellaneous.

b. Under Package server, enter the IP address of the package server.

4. If a laptop is to be a temporary package server, temporarily override

the package server IP address and port in each base station.

a. Select Tools > Tools > Firmware Download.

b. Under Package server, enter the IP address of the laptop.

You can now instruct a base station to list and download firmware from the package server.

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5 Installation

This chapter provides information on the site requirements for your TB9400 equipment and also describes how to install the base station in a standard 19 inch rack or cabinet.

If this is your first time installing a TB9400 base station, we recommend that you read the entire chapter before beginning the actual installation.

5.1 Before You Begin

5.1.1 Equipment Security

The security of your base station equipment is a high priority. If the site is not fully secure, the base station should at least be locked in a secure cabinet to prevent unauthorized access.

5.1.2 Grounding and Lightning Protection

Electrical Ground The base station modules are grounded by physical contact between the

module case and the subrack. To ensure a good ground connection you must tighten each module retaining clamp securely (refer to “Final Reassembly”

on page 107 for the correct torque).

A threaded grounding connector is provided on the rear of the subrack for connection to the site ground point (refer to “Connecting Up the Base

Station” on page 80 for more details).

Lightning Ground It is extremely important for the security of the site and its equipment that

you take adequate precautions against lightning strike. Because it is outside the scope of this manual to provide comprehensive information on this subject, we recommend that you conform to your country’s standards organization or regulatory body.

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5.1.3 Equipment Ventilation

Always ensure there is adequate ventilation around the base station.

Warning!! Do not operate it in a sealed cabinet. You must

keep the ambient temperature within the specified range, and we strongly recommended that you ensure that the cooling airflow is not restricted.

Important The cooling fans are mounted on the front panel and will

only operate when the panel is fitted correctly to the front of the subrack. To ensure adequate airflow through the base

station, do not operate it for more than a few minutes with

the front panel removed (e.g. for servicing purposes).

5.1.4 Ambient Temperature Sensor

The ambient temperature reading for the base station is provided by the temperature sensor located on the front panel circuit board.

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5.1.5 Cabinet and Rack Ventilation

The cooling airflow for the base station enters through the front panel and exits at the rear of the subrack. For optimum thermal performance, the heated air that has passed through a base station must not be allowed to reenter the air intakes on the front panel. Any space at the front of the cabinet not occupied by equipment should be covered by a blanking panel. Refer to Figure 5.1 on page 66.

To allow enough cooling airflow through a cabinet-mounted base station, we recommend the following:

■ an area of at least 23 in

in front of the air intakes for the fans for each subrack; for example, thirty

0.25 x 3.3 in (6 x 85 mm) slots will allow the recommended airflow

■ a vent in the top of the cabinet with an area of approximately 23 in

(150 cm rear of the cabinet behind each subrack

■ a 2 U gap at the top of the cabinet.

) per subrack, or a similar area of ventilation per subrack at the

(150 cm2) of unrestricted ventilation slots or holes

Auxiliary Extractor Fans

Note The ventilation opening must be unrestricted. If the slots or holes

are covered with a filter, mesh or grille, the open area must be increased to allow the same airflow as an unrestricted opening.

The maximum ambient temperature entering the cabinet must not exceed + 140°F (+ 60°C).

If you are installing multiple subracks in a cabinet, ensure that there will be enough cooling airflow through the cabinet after the equipment has been installed. For example, the recommended maximum number of subracks in a 38 U cabinet is five, as shown in Figure 5.1 on page 66.

If the base station is installed in a rack or cabinet with other equipment with different ventilation requirements, we recommend that the base station be positioned below this equipment.

The base station does not require auxiliary extractor fans mounted in the top of the cabinet. If your cabinet is already fitted with fans, the following procedures apply:

■ if there are six or more 4.75 in (12 cm) fans, each capable of extracting

■ if there are fewer than six fans, you must remove them and ensure the

94.2 ft

per minute (160 m3 per hour), they must run continuously

vent in the top of the cabinet has an area of approximately 23 in

(150 cm

) per subrack.

If you have any other configuration, the performance of your system will depend on how closely you comply with the base station airflow requirements described above.

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Figure 5.1 Typical cabinet ventilation requirements

8 in (20 cm)

side view front view

2 U

top view

≥ 7 in (≥17.5cm)

ventilation slots

blanking panels

66 Installation TB9400 Installation and Operation Manual

airflow entry

airflow exit path

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5.2 Unpacking and Moving the Subrack

The subrack is packed in a strong corrugated cardboard carton with top and bottom foam cushions. To prevent personal injury and damage to the equipment, we recommend that two people unpack and move the subrack. To remove the subrack from the carton, follow the procedure illustrated in

Figure 5.2.

Caution A subrack complete with modules can weigh up to

55 lb (25 kg), or up to 62 lb (28 kg) complete with packaging. We recommend that you have another person help you unpack and move the subrack. The TBAA03-16 carrying handles will make it easier to move the subrack once it has been unpacked. If necessary, remove the modules from the subrack before moving it (refer to “Replacing Modules” on

page 93). In all cases follow safe lifting practices.

Figure 5.2 Unpacking the subrack

1. Cut the tape securing the flaps at the top of the carton and fold them

flat against the sides

2. Rotate the carton carefully onto its side

ensuring that none of the flaps is trapped underneath.

c and then onto its top d,

TB9400 Installation and Operation Manual Installation 67 © Tait Electronics Limited September 2011

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3. Slide the carton upwards over the foam cushions and lift it away e. Remove the cushion from the bottom of the subrack

4. Rotate the subrack and cushion carefully over the rear of the subrack

g so that it is the right way up with the cushion on top h. Remove

the cushion from the top of the subrack

Disposal of Packaging

If you do not need to keep the packaging, we recommend that you recycle it according to your local recycling methods. The foam cushions are CFCand HCFC-free and may be burnt in a suitable waste-to-energy combustion facility, or compacted in landfill.

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5.3 Identifying the Equipment

You can identify the model and hardware configuration of the TB9400 modules by referring to the product code printed on labels at the rear of each module. The meaning of each character in the product code is explained in the tables below.

Note This explanation of product codes is not intended to suggest that

any combination of features is necessarily available in any one product. Consult your regional Ta it office for more information regarding the availability of specific models and options.

Reciter Product Codes

PA Product Codes

Product Code Description

T01-01103-X

T01-01103-XXXX A = standard

T01-01103-XXX

T01-01103-XXXX

a. The actual frequency coverage in this band is:

Product Code Description

T01-01121-X

T01-01121-XXXX A = 50 W

T01-01121-XXX

T01-01121-XXXX

XXX Frequency Band and Sub-band

N = 762MHz to 870MHz

X A = default

A = default

Transmit: 762MHz to 776MHz and 850MHz to 870MHz Receive: 792MHz to 824MHz

XXX Frequency Band and Sub-band

N = 762MHz to 870MHza (K4)

B = 100 W

X A = default

A = default

(K4)

a. The actual frequency coverage in this band when used with a K-band TB9400 reciter

is 762MHz to 776MHz and 850MHZ to 870MHz.

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PMU Product Codes

Product Code Description

TBAX

XXX-XXXX 3 = PMU

TBA3X

XX-XXXX 0 = default

TBA3XX

TBA3XXX

TBA3XXX-XXXX 0 = standby power supply card not fitted

TBA3XXX-XXXX 0 = auxiliary power supply board not fitted

TBA3XXX-XXXX 0 = default

TBA3XXX-XXXX

X-XXXX 0 = AC module not fitted

A = AC module fitted

-XXXX 0 = DC module not fitted 1 = 12V DC module fitted 2 = 24V DC module fitted 4 = 48V DC module fitted

1 = 12VDC standby power supply card fitted 2 = 24VDC standby power supply card fitted 4 = 48VDC standby power supply card fitted

1 = 12VDC auxiliary power supply board fitted 2 = 24VDC auxiliary power supply board fitted 4 = 48VDC auxiliary power supply board fitted

0 = default

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5.4 Initial Setting Up

Before putting the base station into ser v i c e, you may want to car ry out some basic functional testing, configuration, and tuning (if required). This section provides an overview of these procedures:

■ checking that the base station powers up correctly

■ checking the basic functionality of the base station by using the tests

available in the web interface

■ customizing the configuration for the intended installation and verifying

that the configuration is correct

■ changing the root password (if needed - TBD)

■ tuning the base station (if required).

5.4.1 Confirming Operation

Important Make sure that the RF output is connected to a suitable

attenuator or dummy load. Do not remove the load while the PA is transmitting as this may damage the PA output stage.

Applying Power 1. Apply power by turning on the PMU.

2. Check that the base station powers up correctly:

■ The front panel display will show “Please wait” while the base

station starts up (this may take up to two minutes). When the

startup process is complete, the display will show the idle screen.

■ The cooling fans in the front panel will run at full speed for a few

seconds, then run at low speed while the base station starts up, and then assume standard operation. One or more fans may operate, depending on the temperature of the modules.

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Functional Tests The following table provides an overview of the tests available using the web

interface. Refer to the Help for full details of these tests.

Te st N ot e s M en u

receiver operation requires a suitable RF source Diagnose > RF Interface > Receiver

transmitter operation requires connection to the network Diagnose > RF Interface > Transmitter

synchronized transmit checks the simulcast operation of a

channel group or the transmitters in it

ping checks the IP connection to

another device with an IP address

NTP query checks if the NTP-based time

synchronization is working

PMU mains failure requires a DC backup supply Diagnose > Subsystems > PMU Control Tests

fan operation checks the operation of each fan

individually

Diagnose > RF Interface > Synchronized Tran sm it

Diagnose > Connection > Network

Diagnose > Subsystems > Fan Tests

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5.4.2 Customizing the Configuration

The following steps provide an overview of the process used to configure the base station with the settings it needs. Refer to the Help for detailed information.

1. Log in to the base station (refer to “Connecting Your PC to the Base

Station” on page 46 for more details).

2. Select Configure. The base station has many different settings that can be configured before it is put into operation, such as:

■ channel configurations

■ alarm control and SNMP agent

■ network interfaces

■ channel groups and quality of service

■ channel and signaling profiles

■ CWID

■ miscellaneous items such as minimum battery voltages, fan

control, NTP and package servers.

3. Make the changes needed in each form and click Save.

Note We recommend that you save the configuration to your PC or

network. First make a backup copy of the configuration (which is stored in the base station as a file), then save this file to a folder on your PC or network. This provides a backup which can be restored to the base station if the configuration information becomes lost or corrupted.

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5.4.3 Changing the Root Password

Procedure still to be decided. May be tied in with Admin password.

5.4.4 Tuning the Reciter

The root password to the Linux operating system of the reciter is a possible security risk. The equipment is delivered with a default password that is well known. Knowledge of the password could be used to render the equipment inoperable, for example by deleting files. If you are concerned about the security risk that this poses, change the password. If Tait provides support services, it may need to know the password.

Important If you change the password and then lose it, the equipment

To change the root password, follow these steps.

1. TBD

The K-band reciter does not require tuning.

must be returned to Tait. Make sure that you store the password securely and do not lose it.

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5.5 Installing the Base Station on Site

5.5.1 Base Stations for Trunked Systems

When installing base stations that are part of a trunked system, it is very important to observe good site engineering rules. This is especially true when the channels are combined into a single antenna, particularly if the receivers and transmitters also share the antenna, as in a duplexed system.

If at all possible, the RF planner should avoid frequency plans in which the Rx to Tx spacing is an exact multiple of the trunked channel spacing, thus forcing Tx intermodulation products to fall outside the Rx channels.

Cables and antennas should be of high quality construction. Solid shield heliax type cables are best, but if braided shield cables must be used for short distances, their braids must be silver-plated.

When the outputs of more than one transmitter are combined, their voltages add, and the resulting peak envelope power is not simply the sum of their powers, but is equal to the power of one of them multiplied by the square of the number of sources. Cables, components, and hardware must be rated to withstand the peak envelope power.

During the commissioning process, all transmitters should be activated together using a diagnostic test tone, while the receiver RSSI is monitored. There should be no perceptible increase in RSSI while the transmitters are active.

5.5.2 Equipment Required

It is beyond the scope of this manual to list every piece of equipment that an installation technician should carry. However, the following tools are specifically required for installing the base station:

■ Pozidriv PZ3 screwdriver for the M6 screws used in the DC input

terminals on the PMU; M6 (0.25 in) screws are also used to secure the subrack to the cabinet in factory-assembled systems

■ Pozidriv PZ2 screwdriver for the M4 screws used to secure the module

retaining clamps, and for the fasteners used to secure the front panel to the subrack

■ 8 mm AF spanner for the SMA connectors, and the subrack ground

connector.

You can also obtain the TBA0ST2 tool kit from your regional Tai t office. It contains the basic tools needed to install, tune, and service the base station.

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5.5.3 Mounting the Subrack

Caution A subrack complete with modules can weigh up to

Figure 5.3 Subrack mounting points

page 93). In all cases follow safe lifting practices.

front view

rear view

main mounting holes - front

1. Remove the front panel, as described in “Preliminary Disassembly”

on page 95.

2. Fit the subrack into the cabinet or rack and secure it firmly with an M6 (0.25 in) screw, flat and spring washer in each of the four main mounting holes

b, as shown in Figure 5.3.

auxiliary mounting holes - rear

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Note If you need extra mounting security, additional mounting holes c

Figure 5.4 below gives the dimensions of the subrack and its mounting

holes.

Figure 5.4 Subrack dimensions

14.8 in

(375.5 mm)

are provided at the rear of the subrack for auxiliary support brackets.

17 in (432 mm)

6.96 in

(176.8 mm)

4 in

(101.6 mm)

19 in (482.6 mm)

18.3 in (465.1 mm)

0.42 in (10.6 mm)

0.26 in

(6.6 mm)

14.7 in (373.5 mm)

14.37 in (365 mm)

5.25 in

(133.4 mm)

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Auxiliary Support Bracket

TBAA03-13 auxiliary support brackets can be fitted to the rear of the

subrack to provide additional mounting security. Figure 5.5 shows a standard

TBAA03-13 bracket

the Tait cabinet, you may have to make your own brackets to suit your installation.

Figure 5.5 Auxiliary support bracket

b fitted in a typical Tait cabinet c. If you are not using

Important Yo u must fit the auxiliary support brackets if you intend to

transport a cabinet fitted with a fully built-up base station.

We also recommend that you fit the brackets under the following conditions:

■ when the installation is in an area prone to earthquakes

■ when third party equipment is installed hard up underneath the base

station subrack.

General Cabling We recommend that you try to route all cables to and from the base station

along the side of the cabinet so the cooling airflow is not restricted.

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DC Power Cabling DC power cables should be well supported so that the terminals on the

PMU and on the ends of the cables do not have to support the full weight of the cables.

Figure 5.6 shows two recommended methods of securing these cables to

prevent straining either set of terminals.

We recommend that you fit the supplied covers to the DC terminals to protect against accidental shorts.

Figure 5.6 DC power cabling

secure the cables to the cabinet to support their weight

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5.6 Connecting Up the Base Station

This section provides information relevant to the task of connecting up the various inputs and outputs of the base station.

5.6.1 Connection Overview

The connections at the rear of a dual 50 W base station are identified in

Figure 5.7. External connections are all located at the rear of the subrack.

Figure 5.7 50 W base station inputs and outputs

bcd

fgh

PA 1Reciter 1 PMU

b serial RS-232 connector c 1 PPS input i auxiliary DC output d external reference frequency input j AC mains input e RF input 1) Ethernet interface connector f RF output 1! subrack ground connector g – VDC input 1@ system interface connector

PA 2Reciter 2

h + VDC input

ij1)1!

a. Factory use only.

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5.6.2 Connecting AC Power

The PMU is designed to accept a mains input of 88 to 264 VAC at 45 to 65 Hz. A standard 3-wire grounded socket outlet must be used to supply the AC power. The socket outlet must be installed near the equipment and must be easily accessible. This outlet should be connected to an AC power supply capable of providing at least 600 W. The requirements of two typical AC supplies are given in the following table.

Nominal Supply Current Requirement

115 VAC 8 A 10 A

230 VAC 4 A 6 A

a. The actual current consumption of the base station will be lower than these require-

ments (refer to the Specifications Manual for more information).

Yo u r base station should come supplied with a power supply cord to connect the male IEC connector on the PMU to the local AC supply. The pins of the IEC connector on the PMU are identified at right.

Circuit Breaker/Fuse

Rating

phase

ground

neutral

rear view

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5.6.3 Connecting DC Power

The PMU is designed to accept a nominal 12 VDC, 24 VDC or 48 VDC input (depending on the model) with negative or positive ground. There is a minimum DC startup threshold to prevent damaging a battery which has little capacity left.

You must connect the DC supply from the battery to the PMU via a fuse or DC-rated circuit breaker with a contact separation of 3 mm, and with the appropriate rating, as shown in the table below. The DC input leads should be of a suitable gauge to ensure less than 0.2 V drop at maximum load over the required length of lead.

Nominal Supply Voltage

12 VDC 10 VDC to 16.8 VDC 60 A 2 AWG / 35 mm

24 VDC 20 VDC to 33.6 VDC 30 A 5 AWG / 16 mm

48 VDC 40 VDC to 60 VDC 15 A 8 AWG / 8 mm

a. The actual current consumption of the base station will be lower than these require-

ments (refer to the Specifications Manual for more information).

b. For a length of 5 ft to 6.5 ft (1.5 m to 2 m) (typical).

Input Voltage Range

Circuit Breaker/ Fuse Rating

Recommended Wire Gauge

Terminate and insulate the DC input leads to protect them from accidentally shorting to the subrack if the PMU is removed before the leads are disconnected. Protective covers for the DC terminals are supplied with each PMU.

Figure 5.8 Recommended DC power connection

Circuit Breaker or Fuse

PMU

Battery

We recommend a screw torque of 18 – 20 lbf · in (2 – 2.25 N · m).

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5.6.4 Connecting the Auxiliary DC Power Output

The PMU can provide an auxiliary DC output when it is fitted with the auxiliary power supply board. This board is available with an output of

13.65 VDC, 27.3 VDC, or 54.6 VDC (depending on the model), and is current limited to 3 A, 1.5 A or 750 mA respectively. This power supply is permanently on as soon as the base station has finished powering up, and is available on the auxiliary output connector on the rear panel.

You can connect multiple auxiliary power supply boards in parallel for redundancy purposes, or to provide an output greater than 40 W. Although no active current sharing is used, auxiliary boards connected in parallel will current-share before reaching their power limit. The failure (or switching off) of one auxiliary board will not load any other paralleled auxiliary boards in the circuit.

Auxiliary DC Power Output Cabling

Network elements are supplied with a connector, as shown in Figure 5.9. You can use this to connect the PMU’s auxiliary DC power output to another device.

Contact your regional Tai t office for details on the full range of wiring kits available.

Figure 5.9 Auxiliary DC power connector

Phoenix MVSTBR2.5HC/2-ST/5.08 female

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5.6.5 Connecting RF

Important Do not remove the load from the PA while it is transmitting

The RF input to the base station is via the marked BNC connector on the rear panel of the reciter. The RF output is via the N-type connector on the rear panel of the PA (refer to Figure 5.7 on page 80).

as this may damage the PA output stage.

Recommendations for Installing the PA

We recommend the following installation procedures, which should protect the PA from damage under all but the most extreme operating conditions.

1. Do not connect the PA directly to the antenna. Fit an isolator or duplexer between the PA and the load. Fit the isolator as close as possible to the RF output connector on the PA. Do not connect any switching equipment between the isolator and the PA, unless the switch cannot operate while there is RF present (i.e. the base station is transmitting).

2. Fit a surge suppressor to the antenna cabling where it enters the building.

3. Inspect all cables and equipment connected to the base station for defects.

Ice on the antenna, or a broken antenna, is unlikely to cause damage to the PA.

Explanation The circuit design of the PA protects the circuitry from high VSWR. This

makes it difficult to damage the RF power device by keying the PA into a mismatched load, or if the load deteriorates over even a short period of time (milliseconds).

However, it is possible to damage the device if all the following conditions happen at the same time:

■ there is a step change in the PA load (for example, the load is removed)

■ the PA is transmitting

■ the feed line loss between the PA and the mismatch is < 1 dB.

The effect of such conditions is var iabl e : s o m e d evices will not be destroyed, and some may fail after repeated load interruptions.

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5.6.6 Connecting an External Frequency Reference

For K4 Band, the internal frequency reference accuracy is inadequate, and an external reference (for example, the Tait T801-4) must be used. An external reference is also required for simulcast. The external reference frequency can be 10 MHz or 12.8 MHz, with an input level of 300 mV 5 V

. The stability of this reference should be better than 50 parts per billion

(for non-simulcast) or ≤ 1 part per billion (for simulcast). The reciter automatically detects the frequency of the external reference and configures itself accordingly.

If an external reference is required, enable the external reference “Absent” alarm (Configure > Alarms > Control).

Use a 50 Ω coaxial cable (RG58 or RG223) to connect the external reference to the base station’s external reference frequency input. You can daisy-chain up to eight base stations using T-junctions. The maximum overall cable length is 30 m. Terminate the last connection with a 50 Ω load.

Figure 5.10 Daisy-chaining an external frequency reference input

maximum overall cable length is 30 m

maximum of eight base

station loads on one

frequency reference output

50 Ω termination

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5.6.7 Connecting a 1 PPS Source

A 1 PPS signal is required for simulcast base stations. This and the external

frequency reference can be provided, for example, by a Tait T801-4 Frequency Reference. For more information, see the T801-4 Installation and Operation Manual (MBA-00033-xx).

Use a 50 Ω coaxial cable (RG58 or RG223) to connect the source to the

base station’s 1 PPS input. You can daisy-chain up to six base stations using

T-junctions. We recommend that the cable length between the first and last load is kept to a minimum. This will reduce any propagation variation between base stations. The maximum overall cable length is 30 m. Terminate the last connection with a 50 Ω resistor, otherwise reflections of the 1 PPS pulse may occur.

Figure 5.11 Daisy-chaining a 1 PPS input

The longest length of cable must be between the source and the first base station

5.6.8 Ethernet Connection

The RJ-45 socket on the reciter’s rear panel provides the 10BASE-T or 100BASE-T Ethernet connection to the other devices in the network. Use Cat-5 cable to connect this socket to the TaitNet P25 Network via a router or switch.

use short lengths of cable between each base station

maximum of six base station loads on one 1 PPS output

50 Ω termination

If necessary, refer to “Ethernet Connector” on page 109 for a list of Ethernet connection pin allocations.

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5.6.9 Connecting General Purpose Inputs and Outputs

The base station has a number of general purpose inputs and outputs. These are connected via the 25-way D-range on the rear panel.

The pin allocations for the D-range connector are given in the following table. Not all pins are used in this release of the base station.

Pin Signal Name Signal Type Notes

not used

1) 2#

external view

11 digital in 1

12 digital in 2

13 + 5.2 VDC output power output maximum current 200 mA

14 digital in 3

15 digital in 4

16 digital in 5

17 digital in 6

18 digital in 7

19 digital in 8

20 digital in 9

21 digital in 10

22 digital in 11

23 digital in 11

24 not used

25 ground ground

input

5 V TTL logic active low

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6 Maintenance

The base station is designed to be very reliable and should require little maintenance. However, performing regular checks will prolong the life of the equipment and prevent problems from happening.

It is beyond the scope of this manual to list every check that you should perform on your base station. The type and frequency of maintenance checks will depend on the location and type of your system. The checks and procedures listed below can be used as a starting point for your maintenance schedule.

Performance Checks We suggest you monitor the following operational parameters using the web

interface:

■ VSWR

■ DC input voltage, especially on transmit

■ receiver sensitivity

■ any temperature alarms.

These basic checks will provide an overview of how well your base station is operating.

Reciter If an external frequency reference is not used, check UHF reciters for

frequency drift after 3 months’ service and annually thereafter. If the drift is > 0.5 ppm, adjust the carrier frequency offset. For details, see the Help.

PA There are no special maintenance requirements for the PA.

PMU There are no special maintenance requirements for the PMU. However, we

suggest that you periodically check that the screws on the DC input terminals are tight. They may work loose with thermal cycling. Also, if you are using battery back-up, you should check the batteries regularly in accordance with the manufacturer’s recommendations.

Ventilation The base station has been designed to have a front-to-back cooling airflow.

We strongly recommend that you periodically check and maintain the ventilation requirements described in “Equipment Ventilation” on page 64 to ensure a long life and trouble-free operation for your base station.

Cooling Fans The cooling fans have a long service life and have no special maintenance

requirements. You can use the web interface to configure the base station to generate an alarm if any of the front panel cooling fans fails. Refer to the Help for more details.

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7 Troubleshooting

Check that all front and rear connectors and cables are in place, and that power switches are on. If problems persist, contact your regional Ta it office.

Symptom Possible Cause Action

Alarm LED red and steady (not flashing)

Desired feature is not operating

Tx stuck on Tx and Rx frequencies are

Power LED on front panel is on, but keypad does not work

No power or LEDs on front panel

The base station appears to make random transmissions

PA has low power Channel is configured to

The base station is in Offline mode

Feature license missing Check that you have the necessary feature licenses

Feature license present but feature is not enabled

the same

Keypad is disabled Check that the keypad is enabled in the web

System control bus not connected to front panel

Pins bent on 15-pin D-range plug on front panel

CWID feature enabled No action: CWID transmissions are made according

low power

Use the web interface to put the base station in Online mode

(refer to “Licenses” on page 18 and the Help)

Use the web interface to enable the feature.

Reconfigure Tx and Rx with different frequencies

interface (Configure > Base Station > Miscellaneous)

Check cable connections

Replace or repair D-range plug

to configuration settings

Use the web interface to check the power settings

? ?

PA may have suffered partial damage

Test tones can’t be heard

Lost or forgotten base

station IP address

IMBE does not pass on tones higher than 400 Hz

Replace module and send faulty module for servicing

Ensure test tones are less than 400 Hz

Procedure TBD

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8 Replacing Modules

Caution The 100 W PA and PMU weigh between 9.3 lb

(4.2 kg) and 15.4 lb (7 kg) each. Take care when handling these modules to avoid personal injury.

Important The cooling fans are mounted on the front panel and will

only operate when the panel is fitted correctly to the front of the subrack. To ensure adequate airflow through the base

station, do not operate it for more than a few minutes with

the front panel removed (e.g. for servicing purposes). Both the PMU and PA modules have built-in protection mechanisms to prevent damage from overheating.

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8.1 Saving the Base Station’s Configuration

Before replacing a module in the base station, you should decide whether you need to save its configuration data. If you are unsure whether you have a record of the configuration, backup and save the configuration file before removing any modules. Once you have replaced the module, you will be able to restore the original configuration to the base station.

If one or more of the modules is faulty, you may be unable to save the configuration. In this case, you will have to restore the configuration from a back-up file. Refer to the Help for more information.

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8.2 Preliminary Disassembly

Hot-pluggable Modules

Disconnecting the Power

The reciter, PA and front panel are hot-pluggable and can be removed without powering down the whole base station. These modules can also be removed without disrupting the system control bus communications with the other modules in the subrack.

Important Before removing a PA, first disconnect the DC input, trans-

mit forward input and transmit reverse output, followed by the RF output. After refitting the PA, reconnect the RF output first, followed by the transmit forward input, transmit reverse output, and then the DC input.

If you want to disconnect the power before working on the base station, follow these steps.

Caution Before disconnecting the battery supply leads from

the PMU, open the circuit breaker or disconnect the supply leads from the battery.

1. Turn off the AC

2. Also at the rear of the PMU disconnect the mains supply leads, and the auxiliary DC supply lead

b and DC c switches at the rear of the PMU.

d and battery e

f (if fitted).

bcdef

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Remove the Front Panel

1. Using a Pozidriv PZ2 screwdriver, undo the fastener at each end of the front panel

b with a quarter turn counterclockwise.

lockedunlocked

2. Place a finger in the recess and pull the front panel away from the subrack.

c provided at each end of the front panel

Cable Retaining Clips

The cable retaining clips are used to hold cables in position at the top of the subrack so that they do not interfere with the mounting of the front panel, or interrupt the airflow through the base station.

If you need to remove any front panel cables, simply pull the front of the cable retaining clip down and then slide it out from the subrack until it reaches the end of its travel.

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8.3 Replacing a Reciter

Removal 1. If you have not already done so, carry out the instructions in “Pre-

liminary Disassembly” on page 95.

2. At the rear of the reciter, unplug the RF input cable

c, and the external reference d and 1 PPS e cables (if fitted).

cables

3. At the front of the reciter, unplug the transmit reverse

forward ends of the system control bus cable

4. Loosen the screw securing the retaining clamp

clamp through 90° to clear the module.

5. Slide the reciter out of the subrack, taking care not to damage any of

the cables.

g cables, and move both cables to one side. Unplug both

h and remove it.

b, any system

f and transmit

i and rotate the

DRAFT 4

Refitting 1. Slide the replacement reciter into the subrack and secure it with the

retaining clamp.

2. Reconnect all the front and rear panel cables previously disconnected. Ensure the front panel cables are positioned correctly, and retained where required by the cable retaining clips in the top of the subrack (refer to “Appendix B – Inter-Module Connections” on page 111).

3. Tighten the nut on the SMA connector to a torque of 8 lbf ·in (0.9 N·m).

4. Carry out the instructions in “Final Reassembly” on page 107.

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8.4 Replacing a Power Amplifier

Important Before removing a PA, first disconnect the DC input, trans-

Removal 1. If you have not already done so, carry out the instructions in “Pre-

liminary Disassembly” on page 95.

2. At the front of the PA, unplug the DC input

and transmit reverse Unplug both ends of the system control bus cable

3. At the rear of the PA, unplug the RF output cable.

4. Loosen the screw securing the retaining clamp(s)

clamp(s) through 90° to clear the module.

5. Slide the PA out of the subrack, taking care not to damage any of the

cables.

d cables, and move the cables to one side.

b, transmit forward c

e and remove it.

f and rotate the

b e

50 W PA 100 W PA

be d cff

Refitting 1. Slide the replacement PA into the subrack and secure it with the

retaining clamp(s).

2. At the rear of the PA, connect the RF output cable.

3. At the front of the PA, connect the transmit forward and transmit

reverse cables, followed by the DC input cable.

4. Reconnect all the other front and rear panel cables previously

disconnected. Ensure the front panel cables are positioned correctly, and retained where required by the cable retaining clips in the top of

DRAFT 4

the subrack (refer to “Appendix B – Inter-Module Connections” on

page 111).

5. Tighten the nut on the SMA connector to a torque of 8 lbf ·in (0.9 N·m).

6. Carry out the instructions in “Final Reassembly” on page 107.

100 Replacing Modules TB9400 Installation and Operation Manual

Tait TBCK4B Users Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Installation and Operation Manual Draft in Progress

Contents

Preface

Scope of Manual

Document Conventions

Associated Documentation

Publication Record

1 Description

1.1 Features

1.2 Modules

1.3 Mechanical Assembly

1.4 Frequency Bands and Sub-bands

1.5 Applications

1.6 Licenses

1.7 Theory of Operation

1.7.1 Signal Paths

1.7.2 Online and Offline Modes

1.7.3 Intermodule Communications

1.7.4 Power Management and Distribution

1.7.5 PMU Operation on DC Input

1.7.6 Front Panel Fans

2.1 Personal Safety

2.1.1 Unpacking and Moving the Equipment

2.1.2 Lethal Voltages

TB9400 Installation and Operation Manual General Safety and Regulatory Information 29 © Tait Electronics Limited September 2011

2.1.3 AC Power Connection

2.1.4 Explosive Environments

2.1.5 Proximity to RF Transmissions

2.1.6 High Temperatures

2.1.7 LED Safety (EN 60825-1)

2.2 Equipment Safety

2.2.1 Installation and Servicing Personnel

2.2.2 Preventing Damage to the PA

2.2.3 ESD Precautions

2.2.4 Anti-tampering Devices

2.3 Environmental Conditions

2.3.1 Operating Temperature Range

2.3.2 Humidity

2.3.3 Dust and Dirt

2.4 Regulatory Information

2.4.1 Distress Frequencies

2.4.2 FCC Compliance

2.4.3 Unauthorized Modifications

2.4.4 Health, Safety and Electromagnetic Compatibility in Europe

3 Operation

3.1 Front Panel

3.2 Module Indicator LEDs and Switches

3.2.1 Reciter

3.2.2 PA

3.2.3 PMU

TB9400 Installation and Operation Manual Working with Base Stations from Your PC 45 © Tait Electronics Limited September 2011

4.1 PC Recommendations

4.2 Connecting Your PC to the Base Station

4.2.1 Logging In

4.2.2 Setting the IP Address

4.2.3 Responding to Security Warnings

4.2.4 Connecting a Networked PC to a Base Station

4.2.5 Troubleshooting Connection Problems

4.2.6 Finding a Lost or Forgotten IP Address

4.3 Working with the Web Interface

4.3.1 Monitoring Operation

4.3.2 Viewing Configuration Settings

4.3.3 Viewing the Base Station and Network Identity

4.4 Basic Tasks

4.4.1 User Settings

4.4.2 Taking the Base Station Offline

4.4.3 Troubleshooting Alarms

4.4.4 Working with Configuration Files

4.4.5 Configuring Single Base Stations

4.4.6 Configuring Base Stations in a Channel Group

4.4.7 Setting Up Custom Alarms

4.4.8 Disabling the Front Panel Keypad

4.4.9 Preparing to Download Firmware

5 Installation

5.1 Before You Begin

5.1.1 Equipment Security