User’s Manual for Optical Remote Unit MMR8/19 (ID No 159207) ID No: 159967 Page 1
User’s Manual for Remote Unit MMR8/19 Copyright 2003 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 7 1.1. USED ABBREVIATIONS 7 1.2. HEALTH AND SAFETY WARNINGS 8 1.3. PREAMBLE 9 1.4. INTERNATIONAL CONTACT ADDRESSES 2. INTRODUCTION 10 11 2.1. PURPOSE 11 2.2. THE MMR8/19 11 3. 3.1. FUNCTIONAL DESCRIPTION GENERAL 13 13 3.2. COMPONENTS OF THE MMR8/19 REMOTE UNIT 3.2.1. Components Inside the Unit 3.2.2. Fan Protection Kit 3.2.3. Accessories 14 14 16 16 4. INSTALLATION 17 4.1. MECHANICAL INSTALLATION 4.1.1. General 4.1.2. Wall Mounting Procedure 4.
User’s Manual for Remote Unit MMR8/19 6. ALARMS 33 6.1. BITE AND ALARMS 33 6.2. HANDLING OF ALARMS 33 6.3. STATUS REPORT 33 6.4. LED ALARMS 33 6.5. ALARM LIST 34 MAINTENANCE 35 7. 7.1. GENERAL 35 7.2. REPLACING THE FAN UNIT 36 7.3. CLEANING THE HEAT SINK 38 8. 8.1. 8.2. 8.3. 9. APPENDIX 39 ILLUSTRATIONS 39 SPECIFICATIONS 8.2.1. Mechanical Specifications 8.2.2. Optical and Interface Specifications 8.2.3. Electrical Specifications 8.2.4.
FIGURES AND TABLES figure 3-1 Configuration of a MMR8/19 remote unit .................................................. 13 figure 3-2 Remote unit, front view ............................................................................. 14 figure 3-3 Remote unit, backside .............................................................................. 14 figure 3-4 Remote unit, left side ................................................................................ 15 figure 3-5 Remote unit, right side .....
User’s Manual for Remote Unit MMR8/19 For your notes Page 6 M0106A7E.
1 General 1. GENERAL 1.1.
User’s Manual for Remote Unit MMR8/19 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 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.
User’s Manual for Remote Unit MMR8/19 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.
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 MMR8/19 For your notes Page 12 M0106A7E.
3 Functional Description 3. FUNCTIONAL DESCRIPTION 3.1. GENERAL The following figure shows the configuration of a MMR8/19 remote unit.
User’s Manual for Remote Unit MMR8/19 3.2. COMPONENTS OF THE MMR8/19 REMOTE UNIT The actual configuration of the remote unit can be seen at the configuration list which is part of the delivery. 3.2.1. Components Inside the Unit The following figures show exemplary views of an MMR8/19 remote unit – except for the fan housing without cover – to illustrate the individual components.
3 Functional Description Fan housing Air inlet Air outlet Control module PSU Optical module Amplifiers Distribution unit Duplexer figure 3-4 Remote unit, left side ID No: 159967 figure 3-5 Remote unit, right side Page 15
User’s Manual for Remote Unit MMR8/19 3.2.2. Fan Protection Kit In order to protect the fan unit (e.g. against rain), a protective cover to be mounted over the air inlet is delivered for standalone pole or wall mounted units. For inside pole mounting this equipment is not required. For more details see chapter 4.1.4 Mounting of Fan Protection. 3.2.3. Accessories For the accessories available for the MMR remote unit, e.g. overcoat housing, connecting box or iso-trafo kit, a separate manual is available.
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 Mikom are not met. 2. It is strongly recommended to install the unit vertically with the fan unit at the top.
User’s Manual for Remote Unit MMR8/19 F Note: To avoid damage when mounting the unit, always make sure that the M8 washers (DIN9021 or DIN125 depending on the mounting kit) are placed behind and in front of the unit’s mounting drillings. For the installation of the protective tube that is delivered with the MMR remote unit for the protection of the fibre-optic cables, observe that a section of at least 250 mm at the tube end has to point downwards as illustrated below.
4 Installation 4.1.2. Wall Mounting Procedure • Check the suitability of the wall mounting kit and the wall. F Note: To ensure sufficient airflow when mounting the unit in enclosed spaces, two lid openings (one for the air inlet and the other for the air outlet) have to be provided. The size of each opening must equal at least 12x12 cm (144 cm2). Also, make sure there is no thermal short circuit between the air inlet and air outlet.
User’s Manual for Remote Unit MMR8/19 4.1.3. Outside Pole Mounting Procedure Standard mounting hardware can not be used to mount the remote unit to a pole, a column or other similar structures. Additional hardware must be used for this type of installation. Such a pole mounting kit could include two threaded rods M8, two Ubeams and mounting material like bolts and nuts. F Note: To ensure sufficient airflow a distance of at least 50mm has to be observed.
4 Installation Nut M8 DIN 934 Optical remote unit figure 4-4 Pole mounting. • Hang the mounting brackets of the remote unit into the threaded bolts of the Ubeam, and fasten them immediately using the washers and nuts. Ensure that there is free access to the electrical connections as well as to the cabinet. The approved bending radius of the connected cables must not be exceeded. 4.1.4.
User’s Manual for Remote Unit MMR8/19 figure 4-5 Mounting procedure for fan protection 4.1.5. Suggestion for an Inside Pole Mounting Procedure For inside pole mounting a mounting aid is provided as support. Additionally to the material delivered by Mikom, eight M8 washers DIN9021 are required to be put onto the spacing bolts inside the pole behind and in front of the unit’s mounting drillings.
4 Installation figure 4-6 Mounting aid brackets • Carry out all connection procedures at the connector flange described in chapter 4.2 Electrical Installation. • Put four of the M8 washers DIN9021 over the spacing bolts inside the pole.
User’s Manual for Remote Unit MMR8/19 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.
4 Installation 4.2.2.
User’s Manual for Remote Unit MMR8/19 4.2.3. Grounding Grounding must be carried out. Connect an earth bonding cable to the grounding connection provided at the outside of the remote unit (see figure 4-7 Connector flange). Do not use the grounding connection to connect external devices. figure 4-8 Grounding bolt with loosened hex nut After loosening the hex nut, connect the earth bonding cable between the two washers as illustrated in the figures above and below.
4 Installation 4.2.4. Power Connection F Note: Do not connect the power cord at the mains connector (see figure 4-7 Connector flange) while power is applied, i. e. interrupt mains supply before connecting the power cord at the remote unit. Then, engage mains again. Before connecting electrical power to the remote unit, the remote unit must be grounded. For power supply connection a minimum cross section of 1.
User’s Manual for Remote Unit MMR8/19 4.2.6. Optical Fibre Cable Connection Optical signals are transmitted by use of an optical fibre for each remote unit. F Note: Care should be taken when connecting and disconnecting fibre optic cables. Scratches and dust significantly affect system performance and may permanently damage the connector. Always use protective caps on fibre optic connectors not in use. In general optical fibres do not need special protective measures.
4 Installation Ø Using high-grade alcohol and lint-free cotton cleaning swabs, clean the end of the fibre optic cable that will be inserted in the optical connectors on the donor interface box. Ø Blow out the laser receptacle with clean and dry compressed air to remove any particulate matter. Ø Connect the fibre optic cables by inserting the cable end into the laser receptacle and aligning the key (on the cable end) with the keyed slot.
User’s Manual for Remote Unit MMR8/19 1. Remove the PG29 nut and the sealing washer. 2. Connect the optical fibre cable. 3. Screw the sleeve onto the flange. 4. Lay the fibre cable into the groove beside the round bar in one half of the splitseal. à Ensure that in both halves the grooves for the fibre cable are filled with vaseline. 5. Press the seal into the PG sleeve while holding the optical fibre straight. 6. Screw the PG13.5 nut tightly onto the PG13.5. Page 30 M0106A7E.
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! Ø Do not operate the remote unit without termination of the antenna connections! The termination can be achieved by connecting the antennas, a dummy load or the 50-Ohm-terminated connection of a measuring instrument.
User’s Manual for Remote Unit MMR8/19 For your notes Page 32 M0106A7E.
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 MMR8/19 6.5. ALARM LIST The status of the remote unit can be checked via software commands. Alarm message Opt. Rx alarm Opt. Tx alarm Autolevelling Amplifier current DL1 Amplifier current DL2 Amplifier current DL3 ALC alarm DL ALC alarm UL Temperature alarm I2C bus failure PSU 12 V PSU 28 V PSU mains FAN External alarm 1 External alarm 2 External alarm 3 External alarm 4 Page 34 Failure Opt. Rx failure (no input) Opt.
7 Maintenance 7. MAINTENANCE 7.1. GENERAL Read the health and safety warnings in chapter 1.2 Health and Safety Warnings. F Note: The remote unit does not require preventative maintenance measures. F Note: To prevent malfunctions of the cooling system due to dirt or pollution, it is recommended to clean the heat sink at regular intervals. These cleaning intervals depend mainly on the location of the remote unit and the corresponding degree of pollution.
User’s Manual for Remote Unit MMR8/19 7.2. REPLACING THE FAN UNIT Replacement of the fan unit is not required as a preventative measure. Only if an alarm indicates a malfunctioning of a fan, the unit has to be exchanged. F Note: Please observe that the fan unit can only be replaced as a whole. Do not remove the fans separately. Read the health and safety warnings in chapter 1.2 Health and Safety Warnings as well as the instructions in chapter 7.1 General before starting with the replacement procedure.
7 Maintenance 5. To mount the new fan unit, position it correctly and screw it to the fan plate with the seven tallow-drop screws M5x14 and the one tallow-drop screw M5x20. Fasten this screw again with the M5 nut. G0946M2 figure 7-1 Fan unit assembly 6. Reconnect the earth bonding cable and the fan connector (see step 3). Then, place the fan plate back into its original position and fix it tight as shown below. 7.
User’s Manual for Remote Unit MMR8/19 7.3. CLEANING THE HEAT SINK F Note: Read the health and safety warnings in chapter 1.2 Health and Safety Warnings as well as the instructions in chapter 7.1 General before starting with the replacement procedure. Then, proceed as follows: 1. Switch off the remote unit. Make sure that mains is disconnected for the following procedure. 2. Remove the fan plate with the fan unit from the remote unit as described in chapter 7.2 Replacing the Fan Unit, steps 1 and 2: 3.
8 Appendix 8. APPENDIX 8.1.
User’s Manual for Remote Unit MMR8/19 8.2. SPECIFICATIONS 8.2.1. Mechanical Specifications Dimensions * Height (max.): Width (max.): Depth (max.): Weight Mounting** 32.8” (83.2 cm) 6.2” (15.7 cm) 5.8” (14.
8 Appendix D L U L D L U L 800 MHZ section 869 - 894 MHz (AMPS) or Frequency range 851 - 869 MHz (LMR) RF output power (per carrier) Analogue TDMA CDMA iDEN +40 dBm +37 dBm +34 dBm +34 dBm ⇒ 2 carriers +36 dBm +32 dBm +31 dBm +31 dBm ⇒ 4 carriers +32 dBm +29 dBm +28 dBm +28 dBm ⇒ 8 carriers +30 dBm +26 dBm +25 dBm +25 dBm ⇒ 16 carriers ⇒ 32 carriers (CDMA 20 carriers) +26 dBm +23 dBm +24 dBm +22 dBm Spurious emissions < -13 dBm DL output tolerance over frequency ±1.0 dB DL output tolerance over temp.
User’s Manual for Remote Unit MMR8/19 8.2.4. Environmental and Safety Specifications For detailed information, refer to the Environmental and Safety Environmental and Specifications leaflet for Mikom indoor/outdoor cell enhancers, related to ETS 300 019 (European Telecommunication safety Standard).
9 Index 9. INDEX A I Abbreviations .......................................... 7 Illustrations ............................................39 Address of Mikom ................................... 9 Installation Alarm List.............................................. 34 Alarms Bite and Alarms....................................... 33 Handling of Alarms.................................. 33 LED ........................................................ 33 Status Report......................................
