minilink tn hc-e outdoor installation

MINI-LINK TN, MINI-LINK HC, MINI-LINK E

Outdoor Installation Instruction

E

Copyright

© Ericsson AB 2004 – All Rights Reserved

Disclaimer

No part of this document may be reproduced in any form without the writtenpermission of the copyright owner. The contents of this document are subject torevision without notice due to continued progress in methodology, design andmanufacturing. Ericsson shall have no liability for any error or damage of anykind resulting from the use of this document.

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Contents

1 Introduction 1

1.1 Target Group 2

1.2 Revision Information 2

1.3 Related Documents 2

1.4 Installation Workflow 3

2 Safety Instructions 5

2.1 Introduction 5

2.2 Standards 5

2.3 Safety Requirements 7

2.4 Safety Symbols and Definitions 8

2.5 Hazards 10

3 System Overview 13

3.1 Introduction 13

3.2 Outdoor Units 14

4 Preparations 17

4.1 Tools and Equipment 17

4.2 Units and Accessories 20

5 Installing the Antenna Support 25

5.1 Installing the 0.2 m Antenna Support (9") 26

5.2 Installing the 0.3 – 0.6 m Antenna Support (1 – 2 ft) 29

6 Installing the RAU1 37

6.1 Preparing the RAU1 7 – 26 (optional) 38

6.2 Integrated Installation 46

6.3 Separate Installation 63

7 Installing the RAU2 85

7.1 Integrated Installation 86

7.2 Separate Installation 100

8 Outdoor Radio Cabling 121

8.1 Grounding Recommendations 122

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8.2 Radio Cable Prerequisites 123

8.3 Preparing the Radio Cable 124

8.4 Connections and LEDs 125

8.5 Connecting the Radio Cable and Earthing Cable to theRadio Unit 126

8.6 Clamping the Radio Cable 132

8.7 Grounding the Radio Cable 135

8.8 Fitting the Wall Gland 138

9 Antenna Alignment 141

9.1 Alignment Procedure 142

9.2 Transforming the Alignment Value 150

Glossary 151

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1 Introduction

This installation manual contains information on how to install the outdoor partof a MINI-LINK TN, MINI-LINK HC and MINI-LINK E system. The manual isa complement to manuals describing the installation of the indoor part of thesystem. The indoor part can be installed in an indoor environment or outdoors,for example using a dedicated cabinet. These manuals are referred to asapplicable MINI-LINK Indoor Installation Manual, throughout this manual.

Two types of terminal configuration are described in this manual,unprotected (1+0) and protected (1+1).

B

A

C

5814

Figure 1 The outdoor part

Description

A Outdoor part, RAU1 mechanical design

B Outdoor part, RAU2 mechanical design

C Radio cable

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1.1 Target Group

This manual has been written for field technicians and supervisors who workwith the installation of MINI-LINK equipment on site.

The personnel must be authorized and have the appropriate technical trainingand experience.

The field technician is expected to be experienced in radio and mobilecommunications, and have a good understanding of technical English or anyother language in which this manual is available.

1.2 Revision Information

The following major changes have been made since the previous release:• The name of the manual is changed.• Section 6.2 is updated describing how to install the integrated power splitter

for RAU1.• Radio units RAU1 N and RAU2 N are introduced.

1.3 Related Documents

The documents in Table 1 on page 2 contain information related to the subjectof this manual.

Note: Indoor related documents are available in the applicable MINI-LINKIndoor Installation Manual.

Table 1 Related Documents

1.2 m Compact Antenna, InstallationInstruction

EN/LZT 712 0095

1.8 m Compact Antenna, InstallationInstruction

EN/LZT 712 0101

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1.4 Installation Workflow

The flowchart below shows the recommended installation workflow when theindoor part is installed in an indoor environment. This manual covers the stepsin gray while the other steps are described in the applicable MINI-LINK IndoorInstallation Manual. Installing the indoor part outdoors implies a somewhatdifferent workflow, described in the specific manual.

Read the Safety

Instructions

Indoor Installation

Indoor Cabling

Initial Settings

Outdoor Installation

Outdoor Radio Cabling

Antenna Alignment

SW Setup

Functional Test

Start the System

Read the Safety

Instructions

5819

Indoor Radio Cabling

Indoor Installation Outdoor Installation

Figure 2 Installation workflow

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2 Safety Instructions

2.1 Introduction

This section describes the system used for presenting safety information.

Note: Reduce the risk of accidents by studying all the instructions carefullybefore you start working. Should questions arise regarding thesafety instructions, contact your supervisor or your local Ericssonrepresentative.

The relevant manual (including this safety information) and specific instructionssupplied by Ericsson must be followed in any work performed on Ericssonproducts or systems. Sufficient knowledge of English or of any other language,in which the manuals or instructions are available, is necessary to perform thetasks in the manual in a correct and safe way.

The safety information in the relevant manuals presupposes that any personperforming work on Ericsson products or systems has the education, trainingand competence required to perform the task correctly. For certain tasksadditional or special training might be required. For more precise information onthe amount and content of the general and/or special training required to workon Ericsson products or systems, please contact the local Ericsson company.

Ericsson does not take any responsibility for either personal injury or damage totangible property that is caused by work performed on Ericsson products andsystems in conflict with the safety instructions set out in this manual.

2.2 Standards

2.2.1 Safety Standards for Information Technology Equipment

Equipment for the ETSI market meets the requirements according to IEC/EN60950, IEC/EN 60215, and IEC/EN 60529.

Equipment for the ANSI market meets the requirements according to ANSI/UL1950 or ANSI/UL 60950 and CAN/CSA-C.22.2 No. 950-95 or CAN/CSA-C22.2No. 60950

2.2.2 Radiofrequency Electromagnetic Exposure

The radiofrequency (RF) electromagnetic exposure levels from MINI-LINKantennas depend on the transmitted power level, antenna diameter, frequencyand distance from the antenna dish. As the antennas are highly directive theemission in other directions than the main beam axis is negligible.

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2.2.2.1 Compliance Distances for Electromagnetic Exposure

The compliance distance is the minimum separation that should be keptbetween the antenna and a person in order to ensure that the relevant ICNIRP*RF exposure limit is not exceeded.

* Guidelines for limiting exposure to time-varying electric, magnetic, and electromagnetic fields (up to 300 GHz),

International Commission on Non-Ionizing Radiation Protection, Health Physics, vol. 74, no. 4, 1998.

Ericsson has performed RF exposure assessments of the different MINI-LINKconfigurations in order to determine the compliance distances in differentdirections and specify so-called compliance boundaries for both general publicand occupational exposure.

The maximum RF exposure levels directly in front of the antennas do notexceed the limits for occupational exposure for any MINI-LINK configuration.Therefore, no occupational compliance boundary is needed.

For any MINI-LINK configuration, the maximum RF exposure levels do notexceed the general public limits outside the compliance boundary as shownin Figure 3 on page 6.

5 m (16 ft 5")

7338

Figure 3 Compliance boundary for general public exposure

The compliance boundary is defined as a cylinder with the same diameteras the antenna and extending 5 meters (16 ft 5”) from the antenna in themain beam direction.

Normal installation practice requires that the general public have no access tothe area directly in front of the antenna, as any obstacle in the path will interruptthe transmission. Such practice will ensure that the general public does nothave access to the volume within the compliance boundary.

Note: The compliance boundary described above has been defined to coverall MINI-LINK configurations. For many configurations, including allthose with antenna diameters of 1.2 m (4 ft) or more, the maximum RFexposure does not exceed the general public limits at any distance infront of the antenna. On request, Ericsson will provide RF exposure andcompliance distance information for specific MINI-LINK configurations.

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2.3 Safety Requirements

The safety requirements in the following sections must be followed to avoidpersonal injury and damage to tangible property.

It is the responsibility of the local project manager / supervisor to make certainthat local regulations and the safety instructions in this manual are known andfollowed.

2.3.1 Installation and Maintenance Personnel

Installation and maintenance must be carried out by authorized personnel withthe appropriate technical training and experience necessary to be cognizant ofhazards during installation and maintenance, and of measures to minimize anydanger to themselves or any other person.

2.3.2 Access to Equipment

The equipment must be installed in a restricted access location and access shallbe restricted to authorized personnel. The general public shall not have accessto the volume inside the compliance boundary, as shown in Figure 3 on page 6.

2.3.3 Safety Regulations

Use local safety regulations where these are mandatory. The safety instructionsin this manual shall be used as a supplement to the local regulations. In caseof conflict between the safety instructions in this manual and the local safetyregulations, the local safety regulations shall prevail if these are mandatory. Ifthe local regulations are not mandatory the safety instructions in this manualshall prevail.

2.3.4 Installation Hardware

Do not use any installation components (for example screws and nuts) otherthan what is enclosed with the equipment or recommended by Ericsson.

2.3.5 Installation Procedures and Tools

The installation procedures in this manual must be followed. Make sure that:• working instructions are followed• recommended tools are used• adequate safety devices are used• the risk of falling and falling objects is known

As a guide to identifying potentially hazardous installation steps, safety symbolsas in Section 2.4 on page 8 are used throughout the manual.

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2.4 Safety Symbols and Definitions

This section shows the method used for presenting safety information.

2.4.1 Danger, Warning and Caution

The following three levels, shown in order of urgency, are used.

Danger!

Danger means that an accident may occur if the safety precautions areneglected. This type of accident is likely to be fatal.

Warning!

Warning means that an accident may occur if the safety precautions areneglected. This type of accident may be fatal or can cause serious injury.

Caution!

Caution means that an accident may occur if the safety precautions areneglected. This type of accident may cause minor injury or damage to tangibleproperty.

2.4.2 Notes

Note: Notes are used to call to the attention of the reader key points thatmight otherwise be overlooked.

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2.4.3 Electrostatic Discharge

Figure 4 ESD symbol

The Electrostatic Discharge (ESD) symbol indicates when external ESDprotection must be used to avoid possible damage to the equipment.

Electrical charges are generated by friction when a body moves, rubs againstclothes, slides against a chair, when shoes rub against the floor, and when youhandle ordinary plastics, etc. Such charges may remain for a considerableperiod of time.

Handling of Printed Board Assemblies and IC Components

Always use an approved antistatic bracelet to avoid damage to componentsmounted on printed board assemblies. The ESD wrist strap contains a resistorwith an ohmic value greater than 1 M in the cable to protect the operator. Theresistance value is low enough to discharge the electrostatic voltage. Neverreplace the cable with any other cable. The ESD wrist strap must be connectedto earth.

Storing and Transporting Printed Board Assemblies and IC Components

Use the original packaging. If this is not available, use a conductive material,or a special IC carrier that either short-circuits or insulates all leads of thecomponents.

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2.5 Hazards

2.5.1 Hoisting

Warning!

Falling objects can cause accidents.

• Use tested and approved hoisting devices only. Trained personnel mustoperate the hoisting device.

• Always check that all parts of the hoisting device are intact.

• Make sure that all hoisting devices are properly stabilized and attached tofixed objects, such as walls or buildings, before hoisting.

• Always hoist the equipment in the specified hoisting points.

• Never walk under hoisted loads.

• Follow local regulations for safety clothing and safety equipment for hoistingor moving goods.

2.5.2 Working at Heights

Warning!

Some working areas involve the risk of accidents caused by falling or by fallingobjects.

When working at heights, for example on a mast, tower or roof, the followingprecautions must be taken:

• Personnel working at heights must have the appropriate training andmedical certificate.

• Full body safety harness and safety helmet must be used.

• Adequate protective clothing is essential in cold weather.

• No one is allowed to be located below the area where the work is performed.

2.5.2.1 Rules and Advice for the Safe Use of Ladders• Make sure that the ladder is undamaged and has been approved for use.

• Do not overload the ladder.

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2.5.3 General RF Safety Information

Caution!

Excessive RF exposure can result in potentially adverse health effects. If it issuspected that RF exposure limits may be exceeded, ensure that transmittingantennas are switched off, or reduce output power while working with, or near,antennas.

Note: RF exposure limits are specified by national and international healthauthorities in standards, regulations or guidelines. The limits includewide safety margins to protect from potentially harmful tissue heating.

2.5.3.1 Safety Requirements for Installation and Maintenance Personnel

It is important that all personnel working with the installation and maintenanceof transmitting equipment and antennas have basic knowledge regarding RFsafety. They must have been informed or trained to be observant of potentialrisks of RF exposure exceeding specified safety limits, and be aware ofprecautionary measures necessary for differing situations.

Caution!

Do not stand or work in front of an operational antenna, unless it has beenverified or documented that RF exposure levels are within specified safety limits.

Caution!

Always be aware of other RF transmission antennas located close to theantenna you will be working with. If the RF exposure level is unknown, contactthe equipment operator or ensure that measurements are done to verify thatlevels are below specified safety limits before starting work.

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Caution!

Broken or disconnected RF cables can lead to exposure levels reaching, orexceeding, specified safety limits. Repair or reconnect cables before startingwork.

Note: The maximum RF exposure levels directly in front of MINI-LINKantennas do not exceed the limits for occupational exposure. For moreinformation, see Section 2.2.2 on page 5.

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3 System Overview

This section gives a brief overview of the outdoor part of the MINI-LINK terminal.

3.1 Introduction

The MINI-LINK terminal consists of an outdoor and an indoor part.

15

GH

z

15 G

Hz

RADIO

ALARM

POWER

15

GH

z

15 G

Hz

RADIO

ALARM

POWER

A

C

B

6589

Figure 5 Outdoor units

The outdoor part A consists of an antenna, a Radio Unit (RAU) and associatedinstallation hardware. For protected systems (1+1), two radio units and one ortwo antennas are used.

The radio unit is connected to the indoor part with a single coaxial cable B.

The indoor part C is described in the applicable MINI-LINK Indoor InstallationManual.

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3.2 Outdoor Units

The outdoor units, required for a 1+0 terminal, are a radio unit and an antenna.A 1+1 terminal requires two radio units and two antennas. As an alternative,one antenna, fitted integrated to or separately from the radio units, and a powersplitter can be used.

3.2.1 Radio Unit

There are two types of mechanical design of the radio unit, RAU1 and RAU2.The name of the radio unit, for example RAU2 N 23, also reflects the frequencyband and compatibility with the Modem Unit (MMU), using different modulationtechniques (C-QPSK and QAM). The radio unit’s compatibility with the MMU isindicated by a letter (M, L, N) or “no letter”. The different radio unit types arefurther described in technical descriptions of the different MINI-LINK productfamilies.

This manual is based on the fact that all radio units with the same mechanicaldesign are installed in the same way. This means that when referring to RAU2,the information also applies to RAU2 M, RAU2 L and RAU2 N, unless otherwisestated.

5816

RADIO

ALARM

POWER

BA

Figure 6 RAU1 and RAU2

Description

A RAU1 mechanical design

B RAU2 mechanical design

The radio unit is a microwave radio with RF transceivers, which transmit andreceive RF signals. Traffic signals from the indoor units are processed andconverted to transmitter frequency and sent over the hop.

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The radio unit is a weatherproof box with a handle for lifting and hoisting. Ithas two guiding hooks and catches to enable handling with one hand duringinstallation. It can be disconnected and replaced without affecting the antennaalignment.

The radio unit is fitted directly to the antenna as standard. It can also beinstalled separately and connected by a flexible waveguide to any antenna withstandard waveguide interface (154 IEC-UBR). The optional kit for separateinstallation contains all equipment required.

All connections to the radio unit are made on the back. There are connectionsfor antenna alignment, radio cable and grounding. Two LEDs indicate alarmand power on/off.

3.2.2 Antenna

The antennas range from 0.2 m (9”) to 3.7 m (12 ft) in diameter, in singleand dual polarized versions. All antennas are “compact”, that is the design iscompact with a low profile. This manual describes single polarized compactantennas with a diameter of up to 0.6 m (2 ft), see Figure 7 on page 15.

The installation of 1.2 m (4 ft) and larger antennas is described in separateinstructions enclosed in the delivery. The dual polarized antennas also includespecific installation instructions.

15 G

Hz

15 G

Hz

RADIO

ALARMPOWER

RADIO CABLE

AGC

RADIO

ALARMPOWER

RADIO CABLE

AGC

D E

RADIO

ALARM

POWER

15 G

Hz

RADIO

ALARM

POWER

15 G

Hz

15 G

Hz

RADIO

ALARM

POWER

6549

B

C

A

Figure 7 RAU1 and RAU2 with different single polarized compact antennas

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Description

A 0.3 m compact antenna (1 ft) with RAU1

B 0.6 m compact antenna (2 ft) with RAU1

C 0.2 m compact antenna (9") with RAU2

D 0.3 m compact antenna (1 ft) with RAU2

E 0.6 m compact antenna (2 ft) with RAU2

The 0.2 – 1.8 m single polarized antennas are normally fitted integrated withthe radio unit.

All antennas can be fitted separately from the radio unit using a flexiblewaveguide. The 2.4 – 3.7 m (8 – 12 ft) single polarized and all dual polarizedantennas are always installed separately.

For the single polarized antennas, it is possible to choose between verticaland horizontal polarization.

3.2.3 Antenna Support

5813

A

B

Figure 8 0.2 m and 0.3 – 0.6 m antenna support

Description

A 0.2 m antenna support (9")

B 0.3 – 0.6 m antenna support (1 – 2 ft)

The antenna supports fit both poles and L-profiles for maximum flexibility.

The elevation can be adjusted ±13� for the 0.2 m antenna support and ±15�

for the 0.3 – 0.6 m antenna support. The azimuth can be adjusted ±90� for the0.2 m antenna support and ±40� for the 0.3 – 0.6 m antenna support.

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4 Preparations

This section contains information on tools and equipment necessary for theindoor installation. It also gives an overview on units and accessories.

4.1 Tools and Equipment

The following tools and equipment are required for the outdoor installation.

4.1.1 Preparing the RAU1

Table 2 Tools and equipment

Tool Dimension or type

Slotted Screwdriver

Torque wrench with torx insert TX 20 (M4)

Metric combination wrench 8 mm

Torx screwdriver TX 20 (M4)

The following additional instruments are required for RAU1 26 (standard) foradjustment of the variable attenuator (optional):

RAU1 26 standard

Power meter for example HP 435B or 438A

Sensor for example HP 8485A (–30 to +20 dBm)

Adapter APC 3.5 mm (female) to standard PBR/UBR waveguide

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4.1.2 Outdoor Installation

Table 3 Tools


Metric combination wrench 13 mm and 16 mm

Hex key 2.5 mm (M3)

Extended T-handle 6 mm hex key LSB 903 36

Torx screwdriver TX 10 (M3) and TX 20 (M4)

Torque wrench 13 mm and 16 mm

Torque wrench with socket 13 mm and 16 mm

Torque wrench with hex insert 6 mm

Alignment test cable RPM 214 100/1

Digital voltmeter

Lubricating substance For example: Molykote DX(1)

For outdoor screws and nuts.

Sealing substance For example: Form-A-Gasket 2(2)

For more severe weather conditions,to be applied around the flexiblewaveguide interfaces (Note: Mustbe applied on the outside of thewaveguide after connection).

(1) Manufacturer: Molykote, Dow Corning GmbH, Pelkovenstrasse 152, D-8000 Munich 50,Germany(2) Manufacturer: Loctite Corporation, Tallaght Business Park, Whitestown, Dublin 24, Ireland

LSB 903 364837

Figure 9 Extended T-handle hex key

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4.1.3 Outdoor Radio Cabling

Table 4 Tools


Hex key 4 mm (M4)

Torque wrench with socket 16 mm and 18 mm

Torque wrench with hex insert 6 mm

Cable clamp pliers LSD 349 20

Cable jacket cutter LTX 102 17

Knife

Cutting pliers

Digital multimeter

LSB 903 36LTX 102 17LSD 349 204858

Figure 10 Cable clamp pliers and cable jacket cutter

Note: Tools required for assembling and preparing the radio cable are notincluded in the list above. See separate instruction enclosed with theconnector kit.

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4.2 Units and Accessories

The following units and accessories are required for the installation.

4.2.1 Unit Identification

5832

RADIO

ALARM

POWER

A

A

Figure 11 The product label position for RAU1 and RAU2

The label A on the unit is used for product identification. It is positioned on thecardboard box and on the unit. For example, the label contains information on:

• Product number (ordering code)

• Index number

• Revision state

• Manufacturing date

Check the product number on the labels and compare them with the installationdata from the design department to make sure you have received the correctequipment.

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4.2.2 Radio Unit

5807

x2

x2

x4

Figure 12 Items included with the radio unit

The mounting bracket is fitted indoors, see the applicable MINI-LINK IndoorInstallation Manual.

4.2.3 Antenna

6564

15

GH

z1

5 G

Hz

15 G

Hz

15 G

Hz

Figure 13 Items included with the 0.3 m compact antenna (1 ft)

The 0.2 m compact antenna (9") has two screws and washers enclosed inthe delivery.

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4.2.4 Antenna Support

7347

x4

x8

x4

x2

x4

x8

x4

x2

AA B

Figure 14 Items included with the antenna supports

Description

A 0.2 m antenna support (9”)

B 0.3 – 0.6 m antenna support (1 – 2 ft)

4.2.5 Power Splitter

AA B C

RADIO 2

7339

Figure 15 Power splitters

Description

A Integrated power splitter for RAU1

B Integrated power splitter for RAU2

C Power splitter

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4.2.6 Kit for Separate Installation (optional)

G

A

x4

x4

x4

Bx4

x16

x4

x2

E

6584

x3

x2

C

x4

x2

D

F

Figure 16 Items included in the kits for separate installation

Different kits for separate installation are available, see MINI-LINK TN,MINI-LINK HC, MINI-LINK E Product Catalog.

Description

A Flexible waveguide

B Radio mounting support, Ø50 – 120 mm (2" – 4 1/2")

C Waveguide lock and radio mounting screws (RAU2)

D Waveguide lock and radio mounting screws (RAU1)

E Supporting arm (waveguide clamp kit)

F Sun protection plate (RAU1 L/N 7 – 8)

G Sun protection plate (RAU2)

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4.2.7 Outdoor Radio Cabling

x2

AA

B C

DE

F

H

G

I

5824

Figure 17 Required items for the radio cabling

Description

A Radio cable

B Connectors(1)

C Marking tape, marking tag and straps(1)

D Sealing compound and tape(1)

E Radio cable adapter(1)

F Radio earthing kit (enclosed in the radio delivery)

G Cable clamp kit

H Radio cable earthing kit

I Wall gland(1) Included in the connector kit. The connector kit for Ø16 mm (1/2") and Ø28 mm (7/8") also contains a

jumper cable.

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5 Installing the Antenna Support

This section applies to the 0.2 m (9") and 0.3 – 0.6 m (1 – 2 ft) antenna support.

For installation of other antenna supports, a separate instruction is enclosed inthe delivery.

5803

A B

Figure 18 0.2 m and 0.3 – 0.6 m antenna support

Description

A 0.2 m antenna support (9"), see Section 5.1 on page 26.

B 0.3 – 0.6 m antenna support (1 – 2 ft), see Section 5.2 on page 29.

The antenna supports fit poles with a diameter of 50 – 120 mm (2" – 4 3/4") andL-profiles between 40 x 40 x 5 mm (1 1/2" x 1 1/2" x 1/4") and 80 x 80 x 8 mm(3" x 3" x 1/2").

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5.1 Installing the 0.2 m Antenna Support (9")

This section describes how to install the 0.2 m antenna support (9").

Danger!

All tightening instructions must be followed carefully to prevent the equipmentfrom falling down.

5.1.1 Installation Alternatives

The figure gives an overview of different installation alternatives for the antennasupport.

50-60 mm (2"-2 3/8") 60-100 mm (2 3/8"-4")

5-10 mm (3/16"-3/8")

100-120 mm (4"-4 3/4")

7340

5-10 mm (3/16"-3/8")5-10 mm (3/16"-3/8")

5-10 mm (3/16"-3/8")

40 x 40 x 5 mm to 80 x 80 x 8 mm

(1 1/2" x 1 1/2" x 1/4" to 3" x 3" x 1/2")

Figure 19 Overview of installation alternatives for the antenna support

Note: Make sure to remove the nuts when fitting the support to a pole withdiameter 100 – 120 mm (4" – 4 3/4").

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5.1.2 Fitting the Antenna Support

Before fitting the antenna support, consider how the antenna and the alignmentparts should be located.

4686

Figure 20 Locating a landmark

1. Check with the installation data and decide in which direction the antennashould point. Locate a landmark by using a compass.

5-10 mm

5552

(3/16"-3/8")

Figure 21 Fitting the antenna support to the pole

2. Fit the antenna support to the pole. Fasten the screws and nuts gently.Follow the order in the figure.

Note: Make sure that the screw ends protrude 5 – 10 mm (3/16" – 3/8")and the washers are positioned correctly. Coarse saw toothpatterns should face and match each other.

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Warning!


5195

Figure 22 Aligning the antenna support

3. Align the antenna support so it points along the radio link path.

5395

16 mm

35 Nm 10%+

+25.8 ft-lb 10%

Figure 23 Tightening the nuts and screws on the antenna support

4. Tighten the nuts and screw.

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5.2 Installing the 0.3 – 0.6 m Antenna Support (1 – 2 ft)

This section describes how to install the 0.3 – 0.6 m antenna support (1 – 2 ft).

Danger!

All tightening instructions must be followed carefully to prevent the equipmentfrom falling down.

5.2.1 Alignment Considerations

Before fitting the antenna support, consider how the antenna and the alignmentparts should be positioned.

4686

Figure 24 Locating a landmark

1. Check with the installation data and decide in which direction the antennashould point. Locate a landmark by using a compass.

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A B

4689

Figure 25 Installation alternatives, default (A) and optional (B)

2. Consider how the antenna and radio unit should be installed.

Installation alternative A shows how the alignment parts are fitted on thesupport on delivery. If necessary, change the position of the alignmentparts B and follow the instruction on Section 5.2.1.1 on page 31.

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5.2.1.1 Changing Position of the Alignment Parts (optional)

4679

Figure 26 Removing the azimuth adjustment screw

1. Remove the azimuth adjustment screw from the antenna support.

4680

Figure 27 Fitting the azimuth adjustment screw on the opposite side

2. Fit the azimuth adjustment screw on the opposite side of the antennasupport. Tighten the nut and the screw.

Note: Make sure the washers are positioned correctly. Coarse saw toothpatterns should face and match each other.

311/1531-HRA 901 03/1 Uen C 2004-12-09


4681

Figure 28 Loosening and turning the clamp

3. Undo the screws and turn the clamp as shown in the figure above.

Note: Make sure the screw A is inserted in the tapped hole B and thewashers are positioned correctly.

4682

Figure 29 Fitting the clamp on the opposite side

4. Fit the clamp on the opposite side of the antenna support and tighten thescrews.

32 1/1531-HRA 901 03/1 Uen C 2004-12-09


Preparing the 0.6 m Compact Antenna (2 ft)

This section only applies for the 0.6 m compact antenna when the alignmentparts on the antenna support are changed. Only the compact antenna forRAU2 is illustrated since the procedure for RAU1 is similar.

6559

35 Nm 10%+

25.8 ft-lb 10%

15 G

Hz

15 G

Hz

Figure 30 Removing the support plate

1. Remove the support plate.

35 Nm 10%+

25.8 ft-lb 10%

15 G

Hz

15 G

Hz

6560

Figure 31 Fitting the support plate

2. Fit the support plate on the opposite side and tighten the screws.

Note: Make sure the washers are positioned correctly. Coarse saw toothpatterns should face and match each other.

331/1531-HRA 901 03/1 Uen C 2004-12-09


5.2.2 Installation Alternatives

The figure gives an overview of different installation alternatives for the antennasupport.

50-60 mm (2"-2 3/8")

5-10 mm

(3/16"-3/8")

60-100 mm (2 3/8"-4")

100-120 mm (4"-4 3/4")

5-10 mm

(3/16"-3/8")

5-10 mm

(3/16"-3/8")

5-10 mm

(3/16"-3/8")

7341

40 x 40 x 5 mm to 80 x 80 x 8 mm

(1 1/2" x 1 1/2" x 1/4" to 3" x 3" x 1/2")

Figure 32 Overview of installation alternatives for the antenna support

Note: Make sure to remove the nuts when fitting the support to a pole withdiameter 100 – 120 mm (4" – 4 3/4").

34 1/1531-HRA 901 03/1 Uen C 2004-12-09


5.2.3 Fitting the Antenna Support

5-10 mm3/16"-3/8"

4938

Figure 33 Fitting the antenna support to the pole

1. Fit the antenna support to the pole. Fasten the screws and nuts gently.Follow the order indicated in the figure.


Warning!


351/1531-HRA 901 03/1 Uen C 2004-12-09


4685

Figure 34 Aligning the antenna support

2. Align the antenna support so it points along the radio link path.

16 mm

35 Nm 10%+

25.8 ft-lb 10%

5043

Figure 35 Tightening the nuts and screws

3. Tighten the nuts and the screws.

36 1/1531-HRA 901 03/1 Uen C 2004-12-09


6 Installing the RAU1

This section describes a recommended installation procedure for the radio unitswith RAU1 mechanical design, together with the 0.3 m (1 ft) or 0.6 m (2 ft)compact antenna. In general, only the installation procedure for the 0.3 mcompact antenna is illustrated, since the installation procedure for the 0.6 mcompact antenna is similar.

The installation of 1.2 m (4 ft) and larger antennas is described in separateinstructions enclosed in the antenna delivery.

Installation Procedure

5804

A B

Figure 36 Integrated and separate installation

Step 1 Make sure that the initial settings, setting the frequency andoutput power, are done before the outdoor installation. For moreinformation, see the applicable MINI-LINK Indoor InstallationManual.

Step 2 Prepare the RAU1 7 – 26 (optional), see Section 6.1 on page 38.

Step 3 Perform the outdoor installation:

– Integrated installation A, see Section 6.2 on page 46.

– Separate installation B, see Section 6.3 on page 63.

371/1531-HRA 901 03/1 Uen C 2004-12-09


6.1 Preparing the RAU1 7 – 26 (optional)

This section describes how to fit a fixed RF attenuator for RAU1 7 – 26 whenthe built-in variable attenuator is insufficient. It also describes how to changethe frequency sub-band for RAU1 7 – 8.

Note: This section does not apply for RAU1 L and RAU1 N.

Note: The output power for RAU1 26 (standard) must be adjusted manually.For more information, see Section 6.1.5 on page 45.


Step 1 Make sure all required tools, units and accessories are available,see Section 4 on page 17.

Step 2 Remove the radio unit frame, see Section 6.1.1 on page 39.

Step 3 Fit a fixed attenuator, see Section 6.1.2 on page 40.

Step 4 Change frequency sub-band, see Section 6.1.3 on page 41.

Step 5 Fit the radio unit frame, see Section 6.1.4 on page 44.

38 1/1531-HRA 901 03/1 Uen C 2004-12-09


6.1.1 Removing the Frame from RAU1 7 – 26

The frame should only be removed to fit a fixed RF attenuator or when changingfrequency sub-band.

Use external ESD protection to avoid damaging the equipment.

TX 20

7348

Figure 37 Removing the frame

1. Undo the 14 screws and remove the frame.

• Fitting a fixed RF attenuator, see Section 6.1.2 on page 40.

• Changing frequency sub-band, see Section 6.1.3 on page 41.

391/1531-HRA 901 03/1 Uen C 2004-12-09


6.1.2 Fitting a Fixed RF Attenuator to RAU1 7 – 26

1. For 7 and 8 GHz: Unplug the coaxial cable from the filter on the Tx sideusing an 8 mm combination wrench.

For 15, 18 and 26 GHz: Remove the lid of the branching unit using a Torxscrewdriver TX 10 (M3).

2. Fit the attenuator as shown in the figure.

26 GHz

7329

8 mm

7-8 GHz

15 GHz

TX 10

15-26 GHz

45-48

7-8 GHz

18 GHz

Figure 38 Fitting the attenuator

3. Fit the radio unit frame, see Section 6.1.4 on page 44.

40 1/1531-HRA 901 03/1 Uen C 2004-12-09


6.1.3 Changing the Frequency Sub-band for RAU1 7 – 8

This instruction applies to:

• RAU1 7, revision R1L or later

• RAU1 8, revision R1C or later

The revision can be found on the product label, see Figure 11 on page 20.

Note: A radio with earlier revision must use a filter spare part kit, see separateinstruction.

The same microwave sub-unit is used for half of the frequency band, forexample sub-band 45, 46, 47 and 48. The sub-band can be changed within thishalf frequency band by replacing the filter. Each filter can be connected in twoways and be used for either of the two sub-bands used for the hop.

47

47

47

47

5288

Figure 39 Connection for microwave sub-unit 45 – 48 and 41 – 44.

This instruction shows an example of microwave sub-unit 45 – 48 and sub-band43/47 for the filter. Microwave sub-unit 41 – 44 is used for the other side ofthe hop.

1. Check that the new filter is marked with the correct sub-band.

411/1531-HRA 901 03/1 Uen C 2004-12-09


5215

Figure 40 Disconnecting the two cables and the ribbon cable from the filter

2. Disconnect the two coaxial cables and the ribbon cable from the filter.

A

B

5217

Figure 41 Fitting the new filter

3. Undo the four screws and remove the old filter A.

4. Fit the new filter B and tighten it with the four screws.

42 1/1531-HRA 901 03/1 Uen C 2004-12-09


47

43

47

43

41-44

45-48

43

5221

47

Figure 42 Connecting the ribbon cable and the two coaxial cables

5. Connect the ribbon cable and the two coaxial cables the same way theywere fitted previously.

Note: The connections of the ribbon cable and coaxial cables depend onwhich microwave sub-unit is used.

6. Fit the radio unit frame, see Section 6.1.4 on page 44.

431/1531-HRA 901 03/1 Uen C 2004-12-09


6.1.4 Fitting the Frame to RAU1 7 – 26

Note: Make sure to tighten the frame properly due to risk for leakage.

7463

TX 20

1.5 ft-lb

Figure 43 Fitting the cover to the frame

1. Fit the cover to the frame and fit all screws, starting with the screws in thecorners (1) followed by the remaining screws (2).

2. Tighten all screws properly in the same sequence.

TX 20

7349

1.5 ft-lb

Figure 44 Verifying that all screws are tightened

3. Verify that all screws are tightened.

44 1/1531-HRA 901 03/1 Uen C 2004-12-09


6.1.5 Manual Adjustment of the Output Power for RAU1 26 (Standard)

Caution!

Switch off the power supply before opening the RF and waveguide port on themicrowave assembly.

For recommended instruments, see Section 4.1 on page 17.

AB

4152

Figure 45 The screw for trimming the variable attenuator

1. Remove the waveguide protection and connect the power meter to theantenna port A on the radio unit.

2. Switch on the power supply to the MMU.

3. Remove the attenuator cover from the variable attenuator B.

4. Insert the screwdriver through the hole and adjust to the required outputpower.

Note: Record the value in Functional Test Record, see the applicableMINI-LINK Indoor Installation Manual.

5. Switch off the power supply to the MMU. Disconnect the station radio cableand power meter to the radio unit.

6. Fasten the attenuator cover over the variable attenuator and fit thewaveguide protection.

451/1531-HRA 901 03/1 Uen C 2004-12-09


6.2 Integrated Installation

This section describes how to fit RAU1 in an integrated installation.

Danger!

All tightening instructions must be carefully followed to prevent the equipmentfrom falling down.

Note: The radio unit must be installed with the handle upwards.


RADIO 2

BA

7069

Figure 46 Integrated installation (1+0 and 1+1) of RAU1


Step 2 Choose the polarization, see Section 6.2.1 on page 47.

Step 3 Perform the installation:

– Integrated installation (1+0) A, see Section 6.2.2 on page 49.

– Integrated installation (1+1) B, see Section 6.2.3 on page 53.

46 1/1531-HRA 901 03/1 Uen C 2004-12-09


6.2.1 Choosing Polarization

4774

Figure 47 Vertical (V) and horizontal (H) polarization

The compact antenna is prepared for vertical polarization V on delivery. Thehole on the polarization plate is pointing towards the V.

To prepare the compact antenna for horizontal polarization H, follow theinstructions below.

Changing to Horizontal Polarization (optional)

4775

Figure 48 Removing the feeder

1. Undo the four screws holding the feeder to the reflector.

471/1531-HRA 901 03/1 Uen C 2004-12-09


4776

Figure 49 Rotating the feeder

2. Rotate the feeder 90� counter-clockwise and fasten the screws.

4777

Figure 50 Removing the polarization plate

3. Undo the two screws holding the polarization plate to the feeder.

4778

Figure 51 Rotating the polarization plate

4. Rotate the polarization plate 45� clockwise and fasten the screws. The holeon the polarization plate is now pointing towards the H.

48 1/1531-HRA 901 03/1 Uen C 2004-12-09


6.2.2 Integrated Installation (1+0)

This section describes how to fit the radio unit to a 0.3 m compact antenna. Theprocedure is similar when using a 0.6 m compact antenna.

6.2.2.1 Fitting the Radio Unit to the Antenna

4708

Figure 52 Removing the waveguide protection

1. Remove the waveguide protection tape from the antenna and the protectivecover from the radio unit.

RADIOALARM

POWER RADIO CABLEAGC

RADIOALARM

POWER RADIO CABLEAGC

4829

Figure 53 Positioning the radio unit to the antenna

491/1531-HRA 901 03/1 Uen C 2004-12-09


2. Position the radio unit in the corresponding holes A at the bottom of theantenna and lift it over the catches B inside the antenna.

4828

LSB 903 36LSB 903 36

Figure 54 Fastening the radio unit to the antenna and fitting the screw tothe antenna

3. Fasten the radio unit to the antenna with the three screws.

4. Fit the screw and washer (included with the antenna) in the upper holeon the side of the antenna.

50 1/1531-HRA 901 03/1 Uen C 2004-12-09


6.2.2.2 Fitting the Antenna and Radio Unit to the Antenna Support

Warning!



RADIO

ALARMPOWER

RADIO CABLE

AGC

5201

Figure 55 Hoisting the antenna and the radio unit

1. Hoist the antenna and the radio unit to the installation site using the liftinghandle for the 0.3 m compact antenna and the hoisting hole for the 0.6 mcompact antenna.

5211

Figure 56 Hoisting the antenna and radio unit

511/1531-HRA 901 03/1 Uen C 2004-12-09


Caution!

Make sure the load does not hit the mast.

4937

35 Nm 10%+

25.8 ft-lb 10%

16 mm

Figure 57 Fitting the antenna and the radio unit to the antenna support

2. Position the screw on the antenna in the slot on the antenna support andtighten it gently.

3. Fasten the screw and washer in the lower hole on the side of the antennathrough the antenna support. Tighten the screws.

Caution!

Directly after installing the radio unit, lay and connect the radio cable and switchthe power on to avoid moisture accumulation in the radio unit.

52 1/1531-HRA 901 03/1 Uen C 2004-12-09



This section describes how to fit two radio units to an integrated power splitter,using a flexible waveguide to connect to the antenna.

6.2.3.1 Fitting the Antenna to the Antenna Support

Warning!


5204

Figure 58 Hoisting the antenna

1. Fasten the screw and washer in the upper hole on the side of the antenna.

2. Hoist the antenna to the installation site using the hoisting hole.

5210

Figure 59 Hoisting a 0.6 m compact antenna

531/1531-HRA 901 03/1 Uen C 2004-12-09


Caution!


4927

35 Nm 10%+

25.8 ft-lb 10%

16 mm

Figure 60 Fitting the antenna to the antenna support


4. Position the other screw in the lower hole on the side of the antenna.

5. Tighten the screws.

54 1/1531-HRA 901 03/1 Uen C 2004-12-09


6.2.3.2 Fitting the Integrated Power Splitter to the Pole

The integrated power splitter can be fitted on poles of 50 – 114 mm (2” – 4 1/2”)diameter.

Note: The clamp must be fitted according to the figure below.

5-10 mm

(3/16"-3/8")

50-114 mm (2"-4 1/2")

7054

Figure 61 The integrated fitted to a pole (top view)

1. Hoist the integrated power splitter.

Caution!

Make sure the load does not hit the mast when hoisting.

5-10 mm3/16"-3/8"

RADIO 2

7331

Figure 62 Fitting the integrated power splitter

2. Fit the integrated power splitter to the pole. Tighten the screws and nutsby hand.

551/1531-HRA 901 03/1 Uen C 2004-12-09



RADIO 2

7057

16 mm

25.8 ft-lb 10%

35 Nm 10%+

Figure 63 Tightening the nuts

3. Tighten the nuts.

56 1/1531-HRA 901 03/1 Uen C 2004-12-09


6.2.3.3 Fitting the Radio Units to the Integrated Power Splitter

Note: When using an asymmetric integrated power splitter, make sure toconnect the normal working radio to the waveguide port with the lowestattenuation (RADIO 1).

1. Hoist the radio unit.

Caution!



2. Remove the protection tape on the radio unit and integrated power splitter.

Note: The pressure window (white foam) at the power splitter should notbe removed.

RADIO 2

7332

Figure 64 Positioning the radio unit

3. Position the radio unit in the corresponding holes A and catches B on theintegrated power splitter.

571/1531-HRA 901 03/1 Uen C 2004-12-09


7333

RADIO 2

Figure 65 Tightening the screws

4. Fasten the radio unit by tightening the screws. Repeat the procedure forthe other radio unit.

Caution!


58 1/1531-HRA 901 03/1 Uen C 2004-12-09


6.2.3.4 Fitting the Flexible Waveguide

The following accessories are required:• One flexible waveguide kit• One waveguide clamp kit

Caution!

The flexible waveguide is very fragile and must be handled with care, for moreinformation see Section 6.3.5 on page 72.

7343

Figure 66 Removing the waveguide protection tape from the antenna

1. Remove the waveguide protection tape from the antenna.

4824

Figure 67 Checking the O-ring and fitting the power splitter to the antenna

2. Remove the protective end cap from the flexible waveguide. Make sure theO-ring is properly located in the waveguide flange groove.

591/1531-HRA 901 03/1 Uen C 2004-12-09


TX 10

18-26 GHz

TX 20

7-8 GHz

7345

Figure 68 Fastening the flexible waveguide to the antenna

3. Fit the washer on the flexible waveguide and fasten the waveguide to theantenna with the screws.

Note: Make sure the hole in the flexible waveguide matches the hole inthe antenna.

7337

RADIO 2

Figure 69 Removing the protection tape

4. Remove the protection tape from the integrated power splitter.


60 1/1531-HRA 901 03/1 Uen C 2004-12-09


RADIO 2

7334

TX 10

18-26 GHz

TX 20

7-8 GHz

Figure 70 Fitting the flexible waveguide to the integrated power splitter

6. Fit the flexible waveguide to the integrated power splitter and tighten thescrews

Note: Make sure the hole in the flexible waveguide matches the holein the integrated power splitter.

Note: The following steps do not apply to 7 – 8 GHz, since no waveguideclamp is used.

7344

Figure 71 The waveguide clamp kit

611/1531-HRA 901 03/1 Uen C 2004-12-09


7. Not all parts of the waveguide clamp kit are used. Put the unnecessaryitems aside, see Figure 71 on page 61.

7335

D

C

Figure 72 Fitting the screwed pin

8. Fit the screwed pin A into the hole B on the antenna. Fit one washer Cand one nut D.

10 Nm 10%+

7.4 ft-lb 10%

7336

E

Figure 73 Fitting the flexible waveguide in the clamp

9. Fit the flexible waveguide in the clamp. Use the rubber bushing E withthe big hole.

10. Fit the clamp on the screwed pin and tighten all nuts.

62 1/1531-HRA 901 03/1 Uen C 2004-12-09


6.3 Separate Installation

This section describes how to install RAU1 and a compact antenna usinga waveguide.

Danger!




4842

Figure 74 Separate installation of the radio unit and the compact antenna


Step 2 Prepare the antenna feeder and choose the polarization, seeSection 6.3.1 on page 64.

Step 3 Fit the antenna, see Section 6.3.2 on page 66.

Step 4 Fit the waveguide lock, see Section 6.3.3 on page 68.

Step 5 Fit the radio unit, see Section 6.3.4 on page 69.

Step 6 Fit the flexible waveguide, see Section 6.3.5 on page 72.

631/1531-HRA 901 03/1 Uen C 2004-12-09


6.3.1 Preparing the Antenna Feeder and Choosing Polarization

4731

Figure 75 Preparing the antenna feeder for separate installation

1. Remove the polarization plate. It is not used for this application.

2. Move the protection tape to the antenna feeder to protect it until the flexiblewaveguide is installed.

The antenna is now prepared for separate installation with vertical polarizationV.

4732


64 1/1531-HRA 901 03/1 Uen C 2004-12-09


To prepare the antenna for separate installation with horizontal polarization H,follow the instructions below.

Changing to Horizontal Polarization (optional)

4733



4734

Figure 78 Rotating and fastening the feeder

2. Rotate the feeder 90� counter-clockwise and fasten it.

The antenna is now prepared for horizontal polarization.

651/1531-HRA 901 03/1 Uen C 2004-12-09


6.3.2 Fitting the Antenna to the Antenna Support

Warning!


5204




5210


66 1/1531-HRA 901 03/1 Uen C 2004-12-09


Caution!


4927

35 Nm 10%+

25.8 ft-lb 10%

16 mm

Figure 81 Fitting the antenna to the antenna support


4. Position the other screw in the lower hole on the side of the antenna.


671/1531-HRA 901 03/1 Uen C 2004-12-09


6.3.3 Fitting the Waveguide Lock

The waveguide lock must be fitted before the radio unit is hoisted.

1. Remove the waveguide protective cover from the radio unit.

A

BB

4169

Figure 82 Fitting the waveguide lock to 7 – 8 GHz radio units

AB

B

4170

Figure 83 Fitting the waveguide lock to 15 – 26 GHz radio units

2. Fit the waveguide lock to the back of the radio unit and fit the screw Aby hand.

3. Fasten the two guide pins B in two diagonal holes on the radio unit.

Note: Ensure that the guide pins protrude 2 – 3 mm (1/8").

68 1/1531-HRA 901 03/1 Uen C 2004-12-09


6.3.4 Fitting the Radio Unit

4827

Figure 84 Fitting the screws to the radio unit

6583

C

Figure 85 Fitting the screws and sun protection plate to the RAU1 L/N 7 – 8

1. Fit the remaining three screws with washers to the radio unit.

Note: RAU1 L/N 7 – 8 must be fitted with a sun protection plate C.

691/1531-HRA 901 03/1 Uen C 2004-12-09


LSB 903 36

35 Nm 10%+

25.8 ft-lb 10%

4928

Figure 86 Fitting the support to the pole

2. Fit the support to the pole and tighten the screws.

Note: Make sure the washers are positioned correctly.


Caution!


70 1/1531-HRA 901 03/1 Uen C 2004-12-09


35 Nm 10%+

25.8 ft-lb 10%

16 mm

6813

Figure 87 Fitting the radio unit to the support

35 Nm 10%+

25.8 ft-lb 10%

16 mm

6816

Figure 88 Fitting the RAU1 L/N 7 – 8 to the support

4. Hook the radio unit onto the support and tighten the screws.


Caution!


711/1531-HRA 901 03/1 Uen C 2004-12-09


6.3.5 Fitting the Flexible Waveguide

Caution!

The flexible waveguide is very fragile and must be handled with care.

• Transport the waveguide in its original packaging until it is installed. Leavethe protective end caps on until the waveguide flanges are fitted to theradio unit and the compact antenna.

• Be cautious about sharp, cutting edges that can damage the waveguide.

• Make sure the waveguide never supports any weight.

• Do not leave one end of the waveguide hanging free without supporting itclose to its final fixing point.

• Do not stretch the waveguide if it is too short. Move the equipment closer oruse a different waveguide.

4741

Figure 89 The H-bend, E-bend and maximum twisting angle

• Do not twist the waveguide more than 180�. Do not bend the waveguidetoo hard. Note the limit on the bending radius (H-bend, A, and E-bend, B)printed on the flexible waveguide.

72 1/1531-HRA 901 03/1 Uen C 2004-12-09


Installation Alternatives

The figure below gives an overview of installation alternatives for separateinstallation.

4743

A B

C

Figure 90 Installation alternatives for separate installation

A Fit the flexible waveguide with a power splitter, see Section 6.3.5.1on page 74.

B Fit the flexible waveguide with a power splitter on a separate support,see Section 6.3.5.2 on page 76.

C Fit the flexible waveguide to the antenna and radio unit, see Section6.3.5.3 on page 80 and Section 6.3.5.4 on page 81.

731/1531-HRA 901 03/1 Uen C 2004-12-09


6.3.5.1 Fitting the Power Splitter to the Antenna (optional)

The power splitter is fitted directly to the compact antenna.

Note: Antennas with protruding waveguide flanges are not designed to carrythe extra weight of a power splitter. The power splitter must be installedon a separate support, see Section 6.3.5.2 on page 76.

The following accessories are required:• One power splitter• Two flexible waveguides

18-26 GHz

2.5 mmTX 20

7-15 GHz

6335


1. Check that the O-ring is properly located in the flange groove at theinterface between the power splitter and the antenna feeder.

2. Remove the protection tape from the antenna.

3. Fasten the power splitter to the antenna feeder with the four screws.

74 1/1531-HRA 901 03/1 Uen C 2004-12-09


4824

Figure 92 Removing the protective end cap and checking the O-ring

4. Remove the protective end caps on both flexible waveguides. Make surethe O-rings are properly located in the waveguide flange grooves.

TX 10

18-26 GHz

TX 20

7-15 GHz

6336

Figure 93 Fitting the flexible waveguides to the power splitter

5. Fit the washer on the flexible waveguides and fasten the waveguides tothe power splitter.

Note: Make sure the holes on the flexible waveguides match the holes onthe power splitter.

6. Fasten the other end of the flexible waveguides to the radio units, seeSection 6.3.5.4 on page 81.

Note: When using an asymmetric power splitter, make sure to connect thenormal working radio to the waveguide port with the lowest attenuation.

751/1531-HRA 901 03/1 Uen C 2004-12-09


6.3.5.2 Fitting the Power Splitter on a Separate Support (optional)

In special cases separate installation of the power splitter is required.

The following accessories are required to fit the power splitter on a separatesupport:• One power splitter• One mounting kit for power splitter for poles with diameter 50 – 114 mm

(2" – 4 1/2")• Two flexible waveguides• One flexible waveguide kit• One waveguide clamp kit

35 Nm 10%+

25.8 ft-lb 10%

21 Nm 10%+

15.5 ft-lb 10%

4933

Figure 94 Fitting the support and the power splitter

1. Fit the support to the pole and tighten the nuts.

2. Fit the power splitter to the support and tighten the screws.


76 1/1531-HRA 901 03/1 Uen C 2004-12-09


4824


3. Remove the protective end caps on both sides of the flexible waveguide.Make sure the O-rings are properly located in the waveguide flange grooves.

TX 20

7-15 GHz

18-26 GHz

2.5 mm

6337

Figure 96 Checking the O-ring and fitting the flexible waveguide to the upperside of the power splitter

4. Make sure the O-ring on the power splitter is properly located in theflange groove at the interface between the power splitter and the flexiblewaveguide.

5. Fasten the flexible waveguide to the upper side of the power splitter.

Note: Make sure the hole in the flexible waveguide matches the hole inthe power splitter.

771/1531-HRA 901 03/1 Uen C 2004-12-09


7343



TX 10

18-26 GHz

TX 20

7-15 GHz

6338




78 1/1531-HRA 901 03/1 Uen C 2004-12-09


4824


8. Remove the protective end caps from both sides of the flexible waveguides.Make sure the O-rings are properly located in the waveguide flange grooves.

TX 10

18-26 GHz

TX 20

7-15 GHz

7342


9. Fit the washers on the flexible waveguides and fasten the waveguides tothe lower side of the power splitter.




791/1531-HRA 901 03/1 Uen C 2004-12-09


6.3.5.3 Fitting the Flexible Waveguide to the Antenna

7343




TX 10

18-26 GHz

TX 20

7-15 GHz

6338




80 1/1531-HRA 901 03/1 Uen C 2004-12-09


6.3.5.4 Fitting the Flexible Waveguide to the Radio Unit

6815

20 Nm 10%+

14.8ft-lb 10%

Figure 103 Fitting the flexible waveguide to 7 – 8 GHz radio units

20 Nm 10%+

14.8ft-lb 10%5808

Figure 104 Fitting the flexible waveguide to 15 – 26 GHz radio units

1. Remove the protective end cap on the flexible waveguide. Make sure theO-ring is properly located in the waveguide flange groove.

2. Fit the flexible waveguide to the radio unit under the waveguide lock andtighten the waveguide lock screw.

Note: Make sure the hole in the flexible waveguide matches the holein the radio unit.

For a protected terminal (1+1), repeat steps 1 – 2 for the other radio unit.

Continue to Section 6.3.5.5 on page 82.

811/1531-HRA 901 03/1 Uen C 2004-12-09


6.3.5.5 Fitting the Waveguide Clamp Kit

The waveguide clamp kit is used to ensure that the flexible waveguide is notdamaged.

Note: This instruction does not apply to 7–8 GHz radio units

Caution!

The flexible waveguides must be fastened to the mast with a support arm toensure that the flexible waveguide is not damaged.

20 Nm 10%+

14.8 ft-lb 10%

4934

Figure 105 Assembling the waveguide support arm

1. Assemble the waveguide support arm. Use the appropriate rubber bushing.

• 15 GHz does not require any rubber bushing.

• 18 – 26 GHz use the rubber bushing with the big hole.

82 1/1531-HRA 901 03/1 Uen C 2004-12-09


Figure 106 Fastening the waveguide support arm around the pole

2. Fasten the waveguide support arm around the pole with the hose clamp.Use the screw to tighten the hose clamp.

10 Nm 10%+

7.4 ft-lb 10%

4930


3. Fit the flexible waveguide in the clamp and tighten the nuts.

831/1531-HRA 901 03/1 Uen C 2004-12-09


84 1/1531-HRA 901 03/1 Uen C 2004-12-09


7 Installing the RAU2

This section describes a recommended installation procedure for radio unitswith RAU2 mechanical design, together with the 0.2 m (9"), 0.3 m (1 ft) or 0.6 m(2 ft) compact antenna. In general, only the installation procedures for the 0.2m and 0.3 m compact antennas are illustrated, since the installation procedurefor the 0.6 m compact antenna is similar.

The installation of 1.2 m (4 ft) and larger antennas is described in separateinstructions enclosed in the antenna delivery.

B

6561

A

15

GH

z

15 G

Hz

RADIO

ALARM

POWER

Figure 108 Integrated and separate installation


Step 1 Make sure that the initial settings, setting the frequency andoutput power, are done before the outdoor installation. For moreinformation, see the applicable MINI-LINK Indoor InstallationManual.

Step 2 Perform the outdoor installation:

– Integrated installation A, see Section 7.1 on page 86.

– Separate installation B, see Section 7.2 on page 100.

851/1531-HRA 901 03/1 Uen C 2004-12-09


7.1 Integrated Installation

This section describes how to fit RAU2 in an integrated installation.

Danger!




6568

BA

15 G

Hz

15 G

Hz

RADIO

ALARM

POWER

15

GH

z

15 G

Hz

ALIGNMENT

RADIOCABLE

RADIOALARM

POWER

Figure 109 Integrated installation (1+0 and 1+1) with a 0.3 m compactantenna


Step 2 Choose the polarization, see Section 7.1.1 on page 87.

Step 3 Perform the installation:

Integrated installation (1+0) A, see Section 7.1.2 on page 89.

Integrated installation (1+1) B, see Section 7.1.3 on page 94.

86 1/1531-HRA 901 03/1 Uen C 2004-12-09


7.1.1 Choosing Polarization

65531

5 G

Hz

15 G

Hz


The compact antenna is prepared for vertical polarization V on delivery. Thehole on the polarization plate is pointing towards the V.

To prepare the compact antenna for horizontal polarization H, follow theinstructions below.

Horizontal polarization (optional)

4775



871/1531-HRA 901 03/1 Uen C 2004-12-09


4776

Figure 112 Rotating the feeder

2. Rotate the feeder 90� counter-clockwise and fasten the screws.

4777

Figure 113 Removing the polarization plate

3. Undo the two screws holding the polarization plate to the feeder.

4778

Figure 114 Rotating the polarization plate

4. Rotate the polarization plate 45� clockwise and fasten the screws. The holeon the polarization plate is now pointing towards the H.

88 1/1531-HRA 901 03/1 Uen C 2004-12-09



This section describes how to fit the radio unit to a 0.3 m compact antenna. Theprocedure is similar when using 0.2 m or 0.6 m compact antennas.

7.1.2.1 Fitting the Radio Unit to the Antenna

15

GH

z

15 G

Hz

6554

Figure 115 Removing the waveguide protection tape

1. Remove the waveguide protection tape from the antenna and radio unit.

15 G

Hz

15 G

Hz

15 G

Hz

15 G

Hz

6556

RADIO

ALARMPOWER

RADIO

ALARMPOWER

Figure 116 Fitting the radio unit to the antenna

891/1531-HRA 901 03/1 Uen C 2004-12-09


2. Position the radio unit in the corresponding holes A at the bottom of theantenna and lift it over the catches B inside the antenna.

LSB 903 36LSB 903 36

6555

15 G

Hz

15 G

Hz

RADIO

ALARM

POWER

Figure 117 Fastening the radio unit to the antenna and fitting the screw tothe antenna

3. Fasten the radio unit with the four screws.

4. Fasten the screw and washer (included with the antenna) in the upper holeon the side of the antenna.

90 1/1531-HRA 901 03/1 Uen C 2004-12-09


7.1.2.2 Fitting the Antenna and Radio Unit to the Antenna Support

Warning!



15

GH

z

15 G

Hz

RADIO

ALARM

POWER

6547

15 G

Hz

15 G

Hz

RADIO

ALARM

POWER

Figure 118 Hoisting the radio unit and antenna

1. Hoist the antenna and the radio unit to the installation site using the liftinghandle for the 0.2 m compact antenna and the hoisting hole for the 0.3 mand 0.6 m compact antenna.

5206

Figure 119 Hoisting the radio unit and antenna

911/1531-HRA 901 03/1 Uen C 2004-12-09


Caution!


6812

RADIO

ALARM

POWER

35 Nm 10%+

25.8 ft-lb 10%

16 mm

Figure 120 Fitting the 0.2 m compact antenna to the antenna support

6550

35 Nm 10%+

25.8 ft-lb 10%

16 mm

15

GH

z

15 G

Hz

RADIO

ALARM

POWER



3. Fasten the screw and washer in the lower hole on the side of the antennathrough the antenna support.


92 1/1531-HRA 901 03/1 Uen C 2004-12-09


Caution!


931/1531-HRA 901 03/1 Uen C 2004-12-09



This section describes how to fit two radio units to the compact antenna usingan integrated power splitter.

7.1.3.1 Fitting the Antenna to the Antenna Support

Warning!


6587




6548

15

GH

z

15 G

Hz

15

GH

z

15 G

Hz


94 1/1531-HRA 901 03/1 Uen C 2004-12-09


Caution!


6811

16 mm

35 Nm 10%+

+25.8 ft-lb 10%


6588

16 mm

35 Nm 10%+

+25.8 ft-lb 10%




951/1531-HRA 901 03/1 Uen C 2004-12-09


7.1.3.2 Fitting the Integrated Power Splitter to the Antenna

1. Hoist the integrated power splitter.

Caution!


15 G

Hz

15 G

Hz

6570

Figure 126 Positioning the integrated power splitter

2. Remove the protection tape on the antenna and integrated power splitter.

3. Position the integrated power splitter in the corresponding holes A andcatches B on the antenna.

96 1/1531-HRA 901 03/1 Uen C 2004-12-09


15

GH

z

15 G

Hz

6569

Figure 127 Fastening the integrated power splitter

4. Fasten the integrated power splitter and tighten the screws.

971/1531-HRA 901 03/1 Uen C 2004-12-09


7.1.3.3 Fitting the Radio Units to the Integrated Power Splitter

Note: When using an asymmetric integrated power splitter, make sure toconnect the normal working radio to the waveguide port with the lowestattenuation (RADIO 1).


Caution!



2. Remove the protection tape on the radio unit and integrated power splitter.

Note: The pressure window (white foam) at the power splitter should notbe removed.

15

GH

z

15 G

Hz

6566

ALIGNMENT

RADIOCABLE

RADIOALARM

POWER

Figure 128 Positioning the radio unit

3. Position the radio unit in the corresponding holes A and catches B on theintegrated power splitter.

98 1/1531-HRA 901 03/1 Uen C 2004-12-09


15

GH

z

15 G

Hz

ALIGNMENT

RADIOCABLE

RADIOALARM

POWER

6567


4. Fasten the radio unit by tightening the screws. Repeat the procedure forthe other radio unit.

Caution!


991/1531-HRA 901 03/1 Uen C 2004-12-09


7.2 Separate Installation

This section describes how to install RAU2 and a compact antenna usinga waveguide.

Danger!



Installation procedure

6562

Figure 130 Separate installation of the radio unit and the compact antenna


Step 2 Prepare the antenna feeder and choose the polarization, seeSection 7.2.1 on page 101.

Step 3 Fit the antenna, see Section 7.2.2 on page 103.

Step 4 Fit the waveguide lock, see Section 7.2.3 on page 105.

Step 5 Fit the radio unit, see Section 7.2.4 on page 106.

Step 6 Fit the flexible waveguide, see Section 7.2.5 on page 109.

100 1/1531-HRA 901 03/1 Uen C 2004-12-09


7.2.1 Preparing the Antenna feeder and Choosing Polarization

15

GH

z

15 G

Hz

6557

Figure 131 Preparing the antenna feeder for separate installation

1. Remove the polarization plate. It is not used for this application.

2. Move the protection tape to the antenna feeder to protect it until the flexiblewaveguide is installed.

The antenna is now prepared for separate installation with vertical polarizationV.

6558

15

GH

z

15 G

Hz


1011/1531-HRA 901 03/1 Uen C 2004-12-09


To prepare the compact antenna for separate installation with horizontalpolarization H, follow the instructions below.

Horizontal Polarization (optional)

4733



4734

Figure 134 Rotating and fastening the feeder

2. Rotate the feeder 90� counter-clockwise and fasten it.

The antenna is now prepared for horizontal polarization.

102 1/1531-HRA 901 03/1 Uen C 2004-12-09


7.2.2 Fitting the Antenna to the Antenna Support

Warning!


6585




6548

15

GH

z

15 G

Hz

15

GH

z

15 G

Hz


1031/1531-HRA 901 03/1 Uen C 2004-12-09


Caution!


6811

16 mm

35 Nm 10%+

+25.8 ft-lb 10%


6586

16 mm

35 Nm 10%+

+25.8 ft-lb 10%




104 1/1531-HRA 901 03/1 Uen C 2004-12-09


7.2.3 Fitting the Waveguide Lock

The waveguide lock must be fitted before the radio unit is hoisted to the mast.

4184

Figure 139 Removing the waveguide protection tape from the radio unit

1. Remove the waveguide protection from the radio unit.

A

B

B

4195

Figure 140 Fastening the guide pins

2. Fasten the two guide pins B in the small holes on the radio unit.

Note: Ensure that the guide pins protrude 2 – 3 mm (1/8").

3. Fit the waveguide lock A to the back of the radio unit and tighten the screwsby hand.

1051/1531-HRA 901 03/1 Uen C 2004-12-09


7.2.4 Fitting the Radio Unit

Warning!


4198

Figure 141 Fitting the screws on the radio unit

1. Fit the remaining three screws with washers to the radio unit.

4199

Figure 142 Snapping on the sun protection plate

2. Snap on the sun protection plate.

106 1/1531-HRA 901 03/1 Uen C 2004-12-09


LSB 903 36

35 Nm 10%+

25.8 ft-lb 10%

4928

Figure 143 Fitting the support to the pole

3. Fit the support to the pole and tighten the screws.



Caution!


1071/1531-HRA 901 03/1 Uen C 2004-12-09


6814

35 Nm 10%+

25.8 ft-lb 10%

16 mm

Figure 144 Installing the radio unit

5. Hook on the radio to the support and tighten the screws.


Caution!


108 1/1531-HRA 901 03/1 Uen C 2004-12-09


7.2.5 Fitting the Flexible Waveguide

Caution!

The flexible waveguide is very fragile and must be handled with care.

• Transport the waveguide in its original packaging until it is installed. Leavethe protective end caps on until the waveguide flanges are fitted to theradio unit and the compact antenna.

• Beware of sharp cutting edges that can damage the waveguide.

• Make sure the waveguide never supports any weight.

• Do not leave one end of the waveguide hanging loose without supporting itclose to its final fixing point.

• Do not stretch the waveguide if it is too short. Move the equipment closer oruse a different waveguide.

<180°A B

4172

Figure 145 The H-bend, E-bend and maximum twisting angle• Do not twist the waveguide more than 180� or bend it harder than the

minimum bending radius (H-bend A and E-bend B) printed on the flexiblewaveguide.

1091/1531-HRA 901 03/1 Uen C 2004-12-09


Installation Alternatives

The flexible waveguide can be fitted in three different ways:

4743

A B

C

Figure 146 Installation alternatives for separate installation

A Fit the flexible waveguide with a power splitter, see Section 7.2.5.1 onpage 111.

B Fit the flexible waveguide with a power splitter on a separate support,see Section 7.2.5.2 on page 113.

C Fit the flexible waveguide to the antenna and radio unit, see Section7.2.5.3 on page 117 and Section 7.2.5.4 on page 118.

110 1/1531-HRA 901 03/1 Uen C 2004-12-09


7.2.5.1 Fitting the Power Splitter to the Antenna (optional)

The power splitter is fitted directly to the compact antenna.

Note: Antennas with protruding waveguide flanges are not designed to carrythe extra weight of a power splitter. The power splitter must be installedon a separate support, see Section 7.2.5.2 on page 113.

The following accessories are required:• One power splitter• Two flexible waveguide kits

15 G

Hz

23-38 GHz

2.5 mmTX 20

13-15 GHz

6563


1. Check that the O-ring is properly located in the flange groove at theinterface between the power splitter and the antenna feeder.

2. Remove the protection tape from the antenna.

3. Fasten the power splitter to the antenna feeder with the four screws.

1111/1531-HRA 901 03/1 Uen C 2004-12-09


4824



TX 10

23-38 GHz

TX 20

13-15 GHz

6303


5. Fit the washer on the flexible waveguides and fasten the waveguides tothe power splitter.




112 1/1531-HRA 901 03/1 Uen C 2004-12-09


7.2.5.2 Fitting the Power Splitter on a Separate Support (optional)

In special cases separate installation of the power splitter is required.

The following accessories are required to fit the power splitter on a separatesupport:• One power splitter• Mounting kit for poles with diameter 50 – 114 mm (2" – 4 3/4")• Two kits for separate installation (including flexible waveguides)• One flexible waveguide kit• One waveguide clamp kit

35 Nm 10%+

25.8 ft-lb 10%

21 Nm 10%+

15.5 ft-lb 10%

4933

Figure 150 Fitting the support and the power splitter

1. Fit the support to the pole and tighten the nuts.

2. Fit the power splitter to the support and tighten the screws.

Note: Make sure the washers are positioned correctly, as shown in thefigure above.

1131/1531-HRA 901 03/1 Uen C 2004-12-09


4824



TX 20

13-15 GHz

23-38 GHz

2.5 mm

6356

Figure 152 Checking the O-ring and fitting the flexible waveguide to the upperside of the power splitter

4. Make sure the O-ring on the power splitter is properly located in theflange groove at the interface between the power splitter and the flexiblewaveguide.

5. Fasten the flexible waveguide to the upper side of the power splitter.

Note: Make sure the hole in the flexible waveguide matches the hole inthe power splitter.

114 1/1531-HRA 901 03/1 Uen C 2004-12-09


15

GH

z

15 G

Hz

6552



TX 10

23-38 GHz

TX 20

13-15 GHz

6546

15 G

Hz


7. Fit the washer on the flexible waveguide and fasten the waveguide to theantenna.


1151/1531-HRA 901 03/1 Uen C 2004-12-09


TX 10

23-38 GHz

TX 20

13-15 GHz

6357

Figure 155 Fitting the flexible waveguides to the lower side of the powersplitter

8. Fit the washers on the flexible waveguides and fasten the waveguides tothe lower side of the power splitter.




116 1/1531-HRA 901 03/1 Uen C 2004-12-09


7.2.5.3 Fitting the Flexible Waveguide to the Antenna

15

GH

z

15 G

Hz

6552



TX 10

23-38 GHz

TX 20

13-15 GHz

6546

15 G

Hz


2. Fit the washer on the flexible waveguide and fasten the waveguide to theantenna.


1171/1531-HRA 901 03/1 Uen C 2004-12-09


7.2.5.4 Fitting the Flexible Waveguide to the Radio Unit

4824


1. Remove the protective end cap on the flexible waveguide. Make sure theO-ring is properly located in the waveguide flange groove.

5408

10 Nm 10%+

7.4 ft-lb 10%

13 mm

Figure 159 Fitting the flexible waveguide to the radio unit

2. Fit the flexible waveguide to the radio unit underneath the waveguide lockand tighten the waveguide lock screw.

Note: Make sure the hole in the flexible waveguide matches the holein the radio unit.

Continue to Section 7.2.5.5 on page 119.

118 1/1531-HRA 901 03/1 Uen C 2004-12-09


7.2.5.5 Fitting the Flexible Waveguide Clamp Kit

The waveguide clamp kit is used to ensure that the flexible waveguide is notdamaged.

Caution!

All flexible waveguides must be fastened to the mast with a support arm toensure that the flexible waveguide is not damaged.

20 Nm 10%+

14.8 ft-lb 10%

4934

Figure 160 Assembling the waveguide support arm

1. Assemble the waveguide support arm. Use the appropriate rubber bushing.

• 15 GHz does not require any rubber bushing.

• 23 – 32 GHz use the rubber bushing with the big hole.

• 38 GHz use the rubber bushing with the small hole.

Note: 13 GHz, see separate instruction enclosed in the delivery.

1191/1531-HRA 901 03/1 Uen C 2004-12-09


Figure 161 Fastening the waveguide support arm around the pole

2. Fasten the waveguide support arm around the pole with the hose clamp.Use the screw to tighten the hose clamp.

6551

10 Nm 10%+

7.4 ft-lb 10%


3. Fit the flexible waveguide to the clamp and tighten the nuts.

120 1/1531-HRA 901 03/1 Uen C 2004-12-09


8 Outdoor Radio Cabling

This section describes the outdoor installation procedure for the radio cable.This installation is made prior to the indoor radio cable installation.


A

B

C

D

7346

Figure 163 The outdoor radio cable installation


Step 2 Read the grounding recommendations and the radio cableprerequisites, see Section 8.1 on page 122 and Section 8.2 onpage 123.

Step 3 Prepare the radio cable, see Section 8.3 on page 124.

Step 4 Connect the radio cable and the earthing cable to the radio unit A,see Section 8.5 on page 126.

Step 5 Clamp the radio cable B, see Section 8.6 on page 132.

Step 6 Ground the radio cable C, see Section 8.7 on page 135.

Step 7 Fit the wall gland D, see Section 8.8 on page 138.

1211/1531-HRA 901 03/1 Uen C 2004-12-09


8.1 Grounding Recommendations

A

B

C5818

Figure 164 Grounding recommendations on a site

We recommend a combination of several pieces of grounding equipment forthe sites, unless there are other national standards or other site requirementswhich need to be considered.

Description

A Lightning rod

B Radio earthing cable

C Cable earthing kits for Ø10 mm (3/8"), Ø16 mm (1/2") orØ28 mm (7/8")

This grounding combination will withstand severe conditions. Normally theoutdoor grounding equipment is connected to a separate earthing cable. It isrecommended that the radio cable be grounded in its lower part, for examplebefore entering a building, and for long cables every 50 meters (55 yards). It isalso recommended to ground the radio cable before sharp bends.

If the grounding has been properly done, the system has good protectionagainst overvoltage.

122 1/1531-HRA 901 03/1 Uen C 2004-12-09


8.2 Radio Cable Prerequisites

Table 5 Radio cable data

Radio cable diameter Max. cable length Min. bending radius

Ø10 mm (3/8") 200 m (220 yd) 100 mm (4")

Ø16 mm (1/2") 400 m (440 yd) 125 mm (5")

Ø28 mm (7/8") 700 m (770 yd) 250 mm (10")

Cable Length in 1+1 Configurations

5825

MMU

MMU

MMU

MMU

Figure 165 1+1 configuration, hot standby

5826

MMU

MMU

MMU

MMU

Figure 166 1+1 configuration, working standby

Table 6 Cable length restrictions

1+1 configuration Maximum difference in cable length

Hot standby L4 -L2 ≤ 20 m (22 yd), L3 -L1 ≤ 20 m (22 yd)

Working standby (L3 +L4) – (L1 +L2) ≤ 20 m (22 yd)

1231/1531-HRA 901 03/1 Uen C 2004-12-09


8.3 Preparing the Radio Cable

This section describes how to prepare the radio cable, which connects the radiounit and the station radio cable. The instruction applies to Ø10 mm (3/8"),Ø16 mm (1/2") and Ø28 mm (7/8") radio cable.

Trimming and Assembling

1. Fit the cable connectors to the radio cable. See separate instructionenclosed with the connector kit.

Caution!

Make sure the radio cable is handled with care on preparation in order not todeform or tear it.

Marking the Radio Cable End at the Radio Unit

60V DC

AAB1

A

D

E

CB

4783

Figure 167 Assembling the radio cable cover and attaching the label

2. Write the identity on the marking tape A.

3. Attach the DC-label B and the marking tape A to the marking tag C and fixthe tag to the cable, using the straps D.

4. Protect the cable end using the protective cover E unless the radio cable isimmediately connected to the radio unit.

Testing the Radio Cable

5. Use an ohmmeter to make sure that there is no short circuit in the radiocable before connecting it into operation. A Voltage Standing Wave Ratio(VSWR) meter can be used for a more complete test of the radio cable.

124 1/1531-HRA 901 03/1 Uen C 2004-12-09


8.4 Connections and LEDs

This section describes the radio unit connections and LEDs. All connectionsto/from the antenna and radio unit are made at the back of the radio unit.

BA D ECRADIO

ALARMPOWER

RADIO CABLE

AGC

4931

Figure 168 Connections and LEDs on RAU1

A BC D E

RADIO

ALARM

POWER

5545

Figure 169 Connections and LEDs on RAU2

Table 7 Connections and LEDs

Item LED or connector Description

Red LED (steady) Indicates a faulty radio unit.A

Red LED (flashing)RAU2 only

Indicates no input signal to the radio unit.

B Green LED (steady) Power on.

C RADIO CABLE For connection of the radio cable to theMMU in the AMM.

D EARTH For connection of the earthing cable.

E ALIGNMENT For antenna alignment (see Section 9 onpage 141).

1251/1531-HRA 901 03/1 Uen C 2004-12-09


8.5 Connecting the Radio Cable and Earthing Cable tothe Radio Unit

This section describes how to connect the radio cable and earthing cable tothe radio unit.

Warning!

The radio cable must not be connected to voltage during the connectionprocedure.

The figure below shows two installation alternatives for the connection of theradio cable.

AB

C

4924

Figure 170 Connection of a Ø10 mm (3/8") radio cable and a Ø16 mm (1/2")or Ø28 mm (7/8") radio cable

Table 8 Installation alternatives

Item Cable

A Ø10 mm (3/8") radio cable See Section 8.5.1 on page 127

B Jumper cable(1) See Section 8.5.2 on page 128

C Ø16 mm (1/2") or Ø28 mm(7/8") radio cable

(1) Used between the radio unit and radio cable for the Ø16 mm (1/2") or Ø28 mm (7/8") radiocable

126 1/1531-HRA 901 03/1 Uen C 2004-12-09


8.5.1 Connecting a Ø10 mm (3/8") Radio Cable

18 mm

5 Nm 10%+

3.7 ft-lb 10%

4944

AA

B1

Figure 171 Connecting the radio cable to the radio unit

1. Remove the protective cover from the radio cable connector on the radiounit and connect the radio cable.

A

4785

Figure 172 Attaching the butyl sealing compound

2. Stretch and attach the butyl sealing compound A around the radio cableconnector in order to protect it from moisture and corrosion.

Note: The temperature of the butyl sealing compound must not be below–20�C (–4�F) during installation.

1271/1531-HRA 901 03/1 Uen C 2004-12-09


4786

B

Figure 173 Wrapping the PVC tape

3. Wrap one layer of the included PVC tape B from the top of the radioconnector around the butyl sealing compound in a spiral down to the cable.Finish by wrapping one more layer back up to the top.

Continue to Section 8.5.3 on page 131.

8.5.2 Connecting a Ø16 mm (1/2") or Ø28 mm (7/8") Radio Cable (optional)

A jumper cable is used between the radio unit and the radio cable. The jumpercable is enclosed in the connector kit.

Connecting the Jumper Cable to the Radio Unit

4857

Figure 174 Connecting the jumper cable to the radio unit

1. Remove the protective cover from the radio cable connector on the radiounit and connect the jumper cable to the radio unit. Tighten it properly.

128 1/1531-HRA 901 03/1 Uen C 2004-12-09


A

4785

Figure 175 Attaching the butyl sealing compound

2. Stretch and attach the butyl sealing compound A around the jumper cableconnector in order to protect it from moisture and corrosion.


4786

B

Figure 176 Wrapping the PVC tape

3. Wrap one layer of the included PVC tape B from the top of the radioconnector around the butyl sealing compound in a spiral down to the cable.Finish by wrapping one more layer back up to the top.

1291/1531-HRA 901 03/1 Uen C 2004-12-09


Connecting the Jumper Cable to the Radio Cable

18 mm

5 Nm 10%+

3.7 ft-lb 10%4788

Figure 177 Connecting the jumper cable to the radio cable

1. Connect the other end of the jumper cable to the radio cable.

A B

4789

Figure 178 Attaching the butyl sealing compound and wrapping the PVC tapearound the jumper cable connector

2. Attach the butyl sealing compound A gently around the jumper cableconnector in order to protect it from moisture and corrosion. Wrap twolayers of the enclosed PVC tape B around the butyl sealing compound.


Continue to Section 8.5.3 on page 131.

130 1/1531-HRA 901 03/1 Uen C 2004-12-09


8.5.3 Connecting the Earthing Cable

The earthing cable is enclosed in the radio delivery, see Section 4 on page 17.

Danger!

Grounding of the radio is a safety requirement. The other end of the earthingcable must be connected to mast ground, see Section 8.1 on page 122.

16 mm

20 Nm 10%+

14.8 ft-lb 10%

4945

Figure 179 Grounding the radio unit

1. Connect the earthing cable to the radio unit. Connect the other end ofthe earthing cable to mast ground.

1311/1531-HRA 901 03/1 Uen C 2004-12-09


8.6 Clamping the Radio Cable

This section describes how to clamp the radio cable to the mast and applies tothe Ø10 mm (3/8"), Ø16 mm (1/2") and Ø28 mm (7/8") radio cable.

Radio Cable Prerequisites

Max 0.8 m

(32")

Max 1.0 m

(40")

A

4946

Figure 180 Recommended distances between clamps and minimum bendingradius (A)

The recommended maximum distances between clamps are 1.0 m (40")vertically and 0.8 m (32") horizontally.

Table 9 The minimum bending radius for the radio cable

Radio cable diameter Minimum bending radius (A)

Ø10 mm (3/8") 100 mm (4")

Ø16 mm (1/2") 125 mm (5")

Ø28 mm (7/8") 250 mm (10")

132 1/1531-HRA 901 03/1 Uen C 2004-12-09


Clamping Procedure

13 mm

4791

Figure 181 Inserting the radio cable into the clamp

1. Insert the radio cable into the clamp and close with the nuts.

4792

Figure 182 Fitting the clamp to the mast

2. Insert the straps through the clamp and loop the straps around the mast.

3. Insert the tip of the straps through the head of each strap and tighten byhand.

1331/1531-HRA 901 03/1 Uen C 2004-12-09


LSD 349 20

1

2

4793

Figure 183 Tightening the straps

4. Position the pliers on the strap and squeeze the handles (1) to tighten theclamps to the mast.

5. When the clamps are tightened to the mast, rotate the pliers 1/4 – 1/2 turn(2) to cut the excess tail off.

134 1/1531-HRA 901 03/1 Uen C 2004-12-09


8.7 Grounding the Radio Cable

This section describes how to ground the radio cable and applies to theØ10 mm (3/8"), Ø16 mm (1/2") and Ø28 mm (7/8") radio cable.

Danger!

The lower part of the radio cable must be grounded, for example, beforeentering a building and for long cables every 50 m (55 yd).

Caution!

Install the earthing kit only where the cable runs straight.

A

B

C

4865

Figure 184 An assembled earthing kit (for Ø10 mm (3/8") radio cable)

Description

A Earthing kit body

B Radio cable

C Earthing cable


1351/1531-HRA 901 03/1 Uen C 2004-12-09


Grounding Procedure

Caution!

Make sure to strip the radio cable at the specified dimension and center theearthing kit over the stripped part due to risk for leakage.

DLSB 903 36LTX 102 17

4947

Figure 185 Stripping the radio cable

1. Strip 20 ± 2 mm (3/4 ± 1/16") of the radio cable at desired grounding point.Use an appropriate tool, for example a cable jacket cutter.

Note: Be careful not to damage the shield D.

C

E

A4795

6 Nm 10%+

4.4 ft-lb 10%

Figure 186 Aligning and tightening the body to the radio cable

2. Remove the covering paper from the butyl sealing compound E. Wrap theearthing kit body A around the stripped part of the cable.

3. Make sure the butyl sealing compound inside the earthing kit body arepositioned on the outer jacket.

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4. Connect the earthing cable C to the earthing kit body. Press the earthing kitbody together and tighten the screws.

Note: Make sure the screws enter the tapped holes straight.

5292

Figure 187 Sealing the radio cable

5. Smear the butyl sealing compound on the grooves between the radio cableand earthing kit body.

6. Connect the other end of the earthing cable to mast ground.

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8.8 Fitting the Wall Gland

This instruction applies to the Ø10 mm (3/8") radio cable but the procedure issimilar for the Ø16 mm (1/2") radio cable. See separate instructions whenusing other cables.

The wall gland installation should be performed from the outside of the building.

44 mm (1 3/4")

4948

Figure 188 Inserting the radio cable through the hole in the wall

1. Make a hole through the wall.

2. Insert the radio cable through the hole.

A

B

4797

Figure 189 Removing the layers

3. Split the wall gland A into two halves and remove five layers B (threeblack and two blue) from each half to make room for the Ø10 mm (3/8")radio cable.

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4798

Lubricant

Figure 190 Lubricating the inside and outside of the wall gland

4. Lubricate both the inside and the outside of the wall gland, using thelubricant enclosed in delivery.

Note: Ensure that there is enough radio cable to reach the station radiocable before fitting the wall gland.

5. Insert the bottom half of the wall gland into the bottom of the hole and putthe radio cable in it.

4213

Figure 191 Inserting the upper half of the wall gland

6. Put the upper part of the wall gland on top of the radio cable and insertit into the wall.

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4 mm

4799


7. Tighten the four screws.

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9 Antenna Alignment

This section describes the procedure for antenna alignment.

Note: Before the alignment starts, make sure the power supply is withinspecified voltage range. For more information, see the applicableMINI-LINK Indoor Installation Manual.

Alignment Procedure

15 G

Hz

15 G

Hz

RADIO

ALARM

POWER

6565

15 G

Hz

15 G

Hz

RADIO

ALARM

POWER

Figure 193 Aligning the 0.2 m and 0.3 – 0.6 m compact antenna

Step 1 Make sure all MINI-LINK equipment is installed on both thefar-end and near-end sites.


Step 3 Align the antennas, see Section 9.1 on page 142.

Step 4 Transform and compare the alignment value, see Section 9.2on page 150.

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9.1 Alignment Procedure

Make sure all MINI-LINK equipment is installed on both the far-end andnear-end sites and that the frequency and output power are set.

Perform an RF loop test on each radio before starting the alignment procedure,see the applicable MINI-LINK Operation Manual or Online Help.

Warning!


1. Arrange for communication between the sites, to coordinate alignmentactions.

2. Align both antennas roughly, but as accurately as possible.

3. Turn the transmitter on.

Note: The transmitter is turned off on delivery in order not to transmit RFpower before the operation frequency is set and has to be turnedon manually during installation. For more information, see theapplicable MINI-LINK Indoor Installation Manual or Online Help.

Note: If the radio is equipped with Automatic Transmitter Power Control(ATPC) make sure the function is turned off during alignment. Formore information, see the applicable MINI-LINK Online Help.

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ARADIOALARM

POWER

ALIGNMENT

RADIO CABLE

AA

B1

4227

Figure 194 The position of the alignment port on RAU1

A

4228

Figure 195 The position of the alignment port on RAU2

4. Connect the voltmeter to the alignment port A on the connection interfaceof the radio unit. Use the alignment test cable.

The voltmeter is used to measure and find the maximum alignment valueduring the alignment procedure.

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9.1.1 Aligning the 0.2 m Compact Antenna (9")

Azimuth Alignment15 G

Hz

15 G

Hz

RADIO

ALARM

POWER

5402

35 Nm 10%+

25.8 ft-lb 10%

16 mm

Figure 196 Azimuth alignment of the antenna

1. Loosen the vertical axis locking screw A.

2. Adjust the antenna horizontally for maximum alignment value.

Note: Rotate the entire scope of the antenna to find the main lobe. Sidelobes may peak without achieving maximum value.

3. Tighten the locking screw when maximum value is found.

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Elevation Alignment

15 G

Hz

15 G

Hz

RADIO

ALARM

POWER

5403

35 Nm 10%+

25.8 ft-lb 10%

16 mm

Figure 197 Elevation alignment of the antenna

4. Loosen the horizontal axis locking screws B.

5. Adjust the antenna in the vertical plane for maximum alignment value.


6. Tighten the locking screws when maximum value is found.

7. Repeat instructions 1 – 6 until the maximum alignment value is found.

8. Measure the alignment level and record the value.

Danger!

Make sure all screws are tightened when the alignment procedure is finished.

Note: Make sure the protective housing for the alignment port is put back andtightened after the alignment procedure is finished.

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9.1.2 Aligning the 0.3 m and 0.6 m Compact Antenna (1 ft and 2 ft)

The 0.3 m compact antenna is illustrated, since the procedure for the 0.6 mcompact antenna is similar.

Azimuth Alignment

5293

Figure 198 Loosening the vertical axis locking screws on the antenna support

1. Loosen the locking screws A and B.

5294

Figure 199 Azimuth alignment of the antenna

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2. Adjust the antenna horizontally for maximum alignment value using theazimuth adjustment screw C.


5404

35 Nm 10%+

25.8 ft-lb 10%

16 mm

Figure 200 Tightening the locking screws

3. Tighten the locking screws A and B when maximum value is found.

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Elevation Alignment

5295

Figure 201 Loosening the locking screws on the antenna support

4. Loosen the locking screws D and E.

5296

Figure 202 Elevation alignment of the antenna

5. Adjust the antenna in the vertical plane for maximum alignment value usingthe elevation adjustment screw F.


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5405

35 Nm 10%+

25.8 ft-lb 10%

16 mm

Figure 203 Tightening the locking screws

6. Tighten the locking screws D and E when maximum value is found.

Note: Do not tighten the elevation adjustment screw F.

7. Repeat instructions 1 – 6 until the maximum alignment value is found.

8. Measure the alignment level and record the value.

Danger!

Make sure all screws are tightened when the alignment procedure is finished.

Note: Make sure the protective housing for the alignment port is put back andtightened after the alignment procedure is finished.

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9.2 Transforming the Alignment Value

The figure below shows an alignment curve that transforms the alignment levelin volts into RF input level in dBm.

RF

(dBm)

-30

-40

-50

-60

-70

-80

-90

-1000 0.5 1.0 1.5 2.0 2.5

Alignment

Level (V)

25 mV/dB

Formula: RF = 40 (Alignment level in volts) -120

-20

4241

Figure 204 RF input level as a function of the alignment level

Table 10 Accuracy with voltmeter

−25 dBm to −30 dBm(1) ±0.075 V / ±3 dB

−30 dBm to −60 dBm ±0.065 V / ±2.5 dB

−60 dBm to −80 dBm ±0.075 V / ±3 dB

(1) Only MINI-LINK HC

Table 11 Accuracy with LCT, MSM or displayed on the MMU

−25 dBm to −30 dBm(1) ±3 dB

−30 dBm to −60 dBm ±2 dB

−60 dBm to −80 dBm ±3 dB

(1) Only MINI-LINK HC

1. Transform the alignment value into RF input level.

2. Compare the RF input level with the one specified in the installation dataform (calculated for the system during path calculation) and check thatthe desired level is obtained.

3. Perform a software setup, see the applicable MINI-LINK Indoor InstallationManual.

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Glossary

Glossary

Alignment portTest port indicating received signal level andused for antenna alignment.

AMMAccess Module Magazine

ATPCAutomatic Transmit Power Control

C-QPSKConstant envelope offset - Quadrature PhaseShift Keying

ESDElectrostatic Discharge

HopA radio link connection with a pair ofcommunicating terminals

LCTLocal Craft Terminal

LEDLight Emitting Diode

MMUModem Unit

MSMMINI-LINK Service Manager

QAMQuadrature Amplitude Modulation

RAURadio Unit

RAU1Mechanical design 1 of the radio unit

RAU2Mechanical design 2 of the radio unit

SiteA place with one or several MINI-LINKterminals

TerminalOne side of a radio link connection

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Glossary

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minilink tn hc-e outdoor installation

Engineering

minilink hc

minilink tn

installation of mini

minilink e system

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