User’s Manual for MMR8L L Single Band Remote Unit ID No: 163511 Page 1
User’s Manual for Remote Unit MMR8L L © Copyright 2005 Mikom GmbH All rights reserved. All information contained in this manual has been revised thoroughly. Yet Mikom accepts no liability for any omissions or faults. Mikom reserves the right to change all hard- and software characteristics without notice. Names of products mentioned herein are used for identification purposes only and may be trademarks and/or registered trademarks of their respective companies.
TABLE OF CONTENTS 1. GENERAL 5 1.1. USED ABBREVIATIONS 5 1.2. HEALTH AND SAFETY WARNINGS 6 1.3. PREAMBLE 8 1.4. INTERNATIONAL CONTACT ADDRESSES 9 2. INTRODUCTION 11 2.1. PURPOSE 11 2.2. THE MMR8L L SINGLE BAND REMOTE UNIT 11 3. FUNCTIONAL DESCRIPTION 13 3.1. GENERAL 13 3.2. COMPONENTS OF THE MMR8L L REMOTE UNIT 14 4. INSTALLATION 15 4.1. MECHANICAL INSTALLATION 4.1.1. General 4.1.2. Wall and Pole Mounting 15 15 16 4.2. ELECTRICAL INSTALLATION 4.2.1. General 4.2.2.
User’s Manual for Remote Unit MMR8L L 7. MAINTENANCE 33 7.1. MAINTENANCE 33 7.2. GENERAL 34 7.3. REPLACEMENT OF POWER SUPPLY 35 8. 8.1. 8.2. 8.3. 9. APPENDIX 37 LAYOUT 37 SPECIFICATIONS 8.2.1. Electrical Specifications 8.2.2. Environmental and Safety Specifications 8.2.3. Mechanical Specifications 38 38 39 40 PARTS LIST 40 INDEX 41 10. LIST OF CHANGES 42 FIGURES AND TABLES figure 3-1 Configuration of an MMR8L L remote unit................................................
1 General 1. GENERAL 1.1.
User’s Manual for Remote Unit MMR8L L 1.2. HEALTH AND SAFETY WARNINGS 1. Only suitably qualified personnel is allowed to work on this unit and only after becoming familiar with all safety notices, installation, operation and maintenance procedures contained in this manual. 2. Read and obey all the warning labels attached to the unit. Make sure that the warning labels are kept in a legible condition and replace any missing or damaged labels. 3.
1 General 13. Make sure the system settings are according to the intended use (see also product information of manufacturer) and regulatory requirements are met. 14. Although the remote unit is internally protected against overvoltage, it is strongly recommended to earth the antenna cables close to the remote unit’s antenna connectors for protection against atmospheric discharge. 15. Laser radiation – Class 1! Do not stare into the beam; do not view it directly or with optical instruments.
User’s Manual for Remote Unit MMR8L L 1.3. PREAMBLE Mikom An Andrew Company is a leading manufacturer of coverage equipment for mobile radio networks, specializing in low cost, high performance, RF and optical repeaters. Our optical distributed networks and RF repeater systems provide coverage for every application: outdoor use, indoor installations, tunnels, subways and many more. Mikom has engineering and manufacturing facilities in Germany, Italy and the USA.
1 General 1.4. INTERNATIONAL CONTACT ADDRESSES in Australia in France in the USA 6 Stuart Street Padstow NSW 2211 Z.I. des Ebisoires 78370 Plaisir Australia France 108 Rand Park Drive Garner NC 27529 USA Phone: +61 (2) 9774-4200 Fax: +61 (2) 9774-4500 email: Phone: +33 (1)30-79-15-36 Fax: +33 (1) 30-55-55-37 email: Phone: +1 (919) 771-2570 Fax: + 1 (919) 771email: WIsupport.australia@andrew.com WIsupport.france@andrew.com WIsupport.us@andrew.
User’s Manual for Remote Unit MMR8L L For your notes: Page 10 M0106ASB.
2 Introduction 2. INTRODUCTION 2.1. PURPOSE Cellular telephone systems transmit signals in two directions between base transceiver station (BTS) and mobile stations (MS) within the signal coverage area. If weak signal transmissions occur within the coverage area because of indoor applications, topological conditions or distance from the transmitter, extension of the transmission range can be achieved by means of an optical distribution system.
User’s Manual for Remote Unit MMR8L L For your notes: Page 12 M0106ASB.
3 Functional Description 3. FUNCTIONAL DESCRIPTION 3.1. GENERAL The following figure shows the configuration of an MMR8L L remote unit.
User’s Manual for Remote Unit MMR8L L 3.2. COMPONENTS OF THE MMR8L L REMOTE UNIT The actual configuration of the remote unit can be seen at the configuration list which is part of the delivery. The following figure shows an exemplary view of an MMR8L L remote unit to illustrate the individual components. Final Amplifier Control Board DC/ DC converter Optical interface Connecting Board Duplexer figure 3-2 MMR8L L, base Page 14 Power Supply figure 3-3 MMR8L L, lid M0106ASB.
4 Installation 4. INSTALLATION 4.1. MECHANICAL INSTALLATION 4.1.1. General Read the health and safety warnings in chapter 1.2 Health and Safety Warnings. 1. Do not install the unit in a way or at a place where the specifications outlined in the Environmental and Safety Specifications leaflet of the manufacturer are not met. 2. It is strongly recommended to install the unit vertically. If a different installation of the remote unit is required, please contact customer service for further information. 3.
User’s Manual for Remote Unit MMR8L L 4.1.2. Wall and Pole Mounting Wall and pole mounting equipment for the unit is available. For the according mounting please refer to the mounting plan (drawing) that is part of the delivery. V1628M0 figure 4-1 Wall mounting Page 16 V1628M1 figure 4-2 Pole mounting M0106ASB.
4 Installation 4.2. ELECTRICAL INSTALLATION 4.2.1. General Read the health and safety warnings in chapter 1.2 Health and Safety Warnings. 1. This unit contains dangerous voltages. Loss of life, severe personal injury or property damage can be the result if the instructions contained in this manual are not followed. 2. It is compulsory to ground the unit before connecting power supply. A grounding bolt is provided on the cabinet to connect the ground bonding cable. 3.
User’s Manual for Remote Unit MMR8L L 4.2.2. Connections Cable gland (e.g. external alarms cable) N-connector mobile / antenna for Mains connector LED Optical connector figure 4-3 Connector flange 4.2.3. Grounding figure 4-4 Grounding bolt Grounding must be carried out. Connect an earth bonding cable to the grounding connection provided at the outside of the remote unit (see figure 4-3 Connector flange). Do not use the grounding connection to connect external devices.
4 Installation 4.2.4. Power Connection Before connecting electrical power to the units, the system must be grounded as described in the previous chapter. Mains power must be connected at the mains connector of the unit (see figure 4-3 Connector flange). The power supply plug is part of the delivery. The correct wiring of the power supply plug is as follows: G1055Z0 figure 4-5 AC mains plug G1055Z0 figure 4-6 DC mains plug For the AC power supply connection, a minimum cross section of 1.
User’s Manual for Remote Unit MMR8L L 4.2.5. Connection of the Antenna Cables The remote unit has an N-type antenna connector or can be delivered with a 7/16 adapter. For its location please refer to figure 4-3 Connector flange. For mounting the cable connectors, it is recommended to refer to the corresponding documentation of the connector manufacturer. The bending radius of the antenna cables must remain within the given specifications.
4 Installation The specified bending radius of the optical fibres must not be exceeded. The pigtails for the connection between mini master and remote unit must have a sufficient length. A protection for the feeding into units must be given. For MMR8L L the system attenuation of the optical fibres, including the connectors, must not exceed 10 dB. System attenuation and attenuation of optical components must be determined.
User’s Manual for Remote Unit MMR8L L 4.2.6.1. Protective Plug Connection: A protective plug is provided for the connection of the fibre-optic cables. figure 4-7 Protective plug assembly ) Note: Page 22 Only high-quality connectors must be used for this type of plug. Qualified brands are Diamond or Huber & Suhner. M0106ASB.
4 Installation For plug assembly observe the following instruction. 1. Pass one or two contacts through the backshell and the clamp ring. 2. Place the contact(s) on the lower insulation body by pushing the groove of the contact into the cavity. If there is only one contact, cavity A must be used. Cavity B is used for the diversity path.* 3. Then, mount the upper insulation body on the lower insulation body. ** Cavity B Upper insulation body Cavity A 4. Bring the insulator into the plug.
User’s Manual for Remote Unit MMR8L L 7. Bring the plastic ring over the cable(s), push it into the backshell and compress the seals and plastic ring by screwing the clamp ring tight (no gap) using a spanner with opening 20. *** Screw tight till gap is closed 8. Connect the plug to the optical fibre 9. To lock the connector push the black connector of the remote unit, again by locking ring forward.**** fitting a stamp on the plug into the groove of the connector.
4 Installation prot ect ive plug f ibre cable plast ic ring reducer Screw t he reducer t o t he prot ect ive plug backshell wit hout gap. coupling Place t he appropriat e seal part s (wit h) one groove f or one cont act or t wo grooves f or t wo cont act s) over t he cable(s) and push t hem int o t he backshell. prot ect ive t ube Push the fibre optic cable carefully through the tube until it comes out at the other end.
User’s Manual for Remote Unit MMR8L L For your notes: Page 26 M0106ASB.
5 Commissioning 5. COMMISSIONING 5.1. GENERAL Read the health and safety warnings in chapter 1.2 Health and Safety Warnings as well as the description carefully to avoid mistakes and proceed step by step as described! • Do not operate the remote unit without terminating the antenna connectors. The antenna connectors may be terminated by connecting them to their respective antennas or to a dummy load.
User’s Manual for Remote Unit MMR8L L For your notes: Page 28 M0106ASB.
6 Alarms 6. ALARMS 6.1. BITE AND ALARMS The Built-In Test concept comprises the monitoring of the power supplies, the power amplifiers and the optical interface. All occurring alarms can be checked via software at the master unit. 6.2. HANDLING OF ALARMS As soon as the software acknowledges a valid alarm, a message is transmitted to the master unit. If the reason for the alarm has been cleared or if the alarm should continue, a new alarm message will not be repeated.
User’s Manual for Remote Unit MMR8L L 6.4. LED ALARMS For local supervision, a LED on the connector flange of the remote unit gives an indication of possible reasons for alarms. This table shows possible on-site measures that could be checked before referring to the master unit alarm list. LED Indication Green Orange Red LED off Alarms Possible on-site measures No alarm Æ Status ok Door alarm Close the door (RUs with door).
6 Alarms 6.5. EXTERNAL ALARM INPUTS AND OUTPUTS There are four alarm inputs and four alarm outputs. The alarm outputs (open collector output 5 V / 1 mA) are normally low. In case of an alarm they are high active (5V). They can be used to monitor alarms with an external alarm indicator. Each alarm output can be set individually to any alarm at the Remote Unit. For details please refer to the according chapter in the software manual of the Master Unit.
User’s Manual for Remote Unit MMR8L L 6.6. TROUBLESHOOTING The status of the remote unit can be checked via the MMR Master Unit (for details please refer to the software manual of the MMR Master Controller). Locally, the status can be checked at the LED, see chapter 6.4 LED Alarms. Page 32 M0106ASB.
7 Maintenance 7. MAINTENANCE 7.1. MAINTENANCE Read the health and safety warnings in chapter 1.2 Health and Safety Warnings. ) Note: The remote unit does not require preventative maintenance measures. Maintenance of the MMR8L L should be performed on a FRU (Field Replaceable Unit) basis only. Do not damage the warranty labels on the components, as this voids the warranty. The spare parts list contains only units that can be replaced without tuning or soldering work.
User’s Manual for Remote Unit MMR8L L 7.2. GENERAL • To open the cabinet of the remote unit, first dismount the locker by unlocking it with the key (which is part of the delivery) and pulling it out carefully. • Then remove the front cover by loosening the four M5 socket head cap screws (circle-marked in figure 7-2 on the left). Do not remove those screws. When they are loosened, the front cover can be taken off.
7 Maintenance 7.3. REPLACEMENT OF POWER SUPPLY • To remove a power supply, first disconnect mains, mains cable and DC cable. • Unscrew the hexagon socket head cap screw on the left-hand side and loosen the other socket head cap screw on the right-hand side (circlemarked) with an Allen key. DC connector Mains connector • Pull the power supply out. • Apply heat-conducting paste to the mounting surface of the new power supply. figure 7-4 Power supply screws • Carefully insert the new power supply.
User’s Manual for Remote Unit MMR8L L For your notes: Page 36 M0106ASB.
8 Appendix 8. APPENDIX 8.1.
User’s Manual for Remote Unit MMR8L L 8.2. SPECIFICATIONS 8.2.1.
8 Appendix Output tolerance over frequency Output tolerance over temperature ± 1.0 dB ± 1.0 dB ICP3 optimized 4) NF optimized 4) +33 dB 58 dB 50 Ohms ICP3 optimized 4) NF optimized 4) +1.5 dBm -9 dBm 13.5 dB 6.
User’s Manual for Remote Unit MMR8L L 8.2.3. Mechanical Specifications ) Note: The unit is mounted directly to the wall or pole. Vertical mounting, and a spacing of 300 mm (11.8’’) above and below is required. Do not block air inlet and outlet. Height, width, depth 546 x 190 x 260 mm (21.5 x 7.5 x 10.25 inch) Weight 16 kg (35 lb) All data is subject to change without notice! 8.3. PARTS LIST The following lists contains all parts available for the remote unit.
9 Index 9. INDEX I A Abbreviations............................................5 Address of Mikom.....................................8 Alarms Alarm Status..............................................29 Bite and Alarms .........................................29 External Inputs ..........................................31 Handling of Alarms....................................29 LED ...........................................................30 List...........................................................
User’s Manual for Remote Unit MMR8L L 10. LIST OF CHANGES Version M0106ASA M0106ASB Page 42 Changes - Chapter 1.2 extended - Chapter 3 changed - Chapter 4.1.2 changed - Chapter 4.2.4 changed Release Date 14-January-2005 27-January-2005 M0106ASB.
