M0121A2D.pdf

M0121A2D.doc

User's Manual

for

Node G

Network Elements

User’s Manual for Node G

Network Elements

M0121A2D.doc

© Copyright 2007 Andrew Wireless Systems GmbH All rights reserved. All information contained in this manual has been revised thoroughly. Yet Andrew Wireless Systems accepts no liability for any omissions or faults. Andrew Wireless Systems 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. No parts of this publication may be reproduced, stored in a retrieval system, transmitted in any form or by any means, electronical, mechanical photocopying, recording or otherwise, without prior written permission of the publisher. Andrew Wireless Systems GmbH, 07-September-2007

TABLE OF CONTENTS

1. GENERAL 9 1.1. ABBREVIATIONS 9 1.2. HEALTH AND SAFETY WARNINGS 11 1.3. ABOUT ANDREW WIRELESS SYSTEMS 12 1.4. INTERNATIONAL CONTACT ADDRESSES 13

2. INTRODUCTION 15 2.1. PURPOSE 15 2.2. THE NODE G NETWORK ELEMENT 15 2.3. QUICK START CHECKLIST 16

3. INSTALLATION 19 3.1. MECHANICAL INSTALLATION 19 3.1.1. General 19 3.1.2. Wall Mounting Procedure 20 3.1.3. Pole Mounting Procedure 22 3.2. ELECTRICAL INSTALLATION 24 3.2.1. General 24 3.2.2. Grounding 25 3.2.3. Power Connection 26 3.2.4. Connection of the Antenna Cables 27 3.2.5. Opening the Cabinet - Mains Power Switch 29

4. FUNCTIONAL DESCRIPTION 31 4.1. DIGITAL ARCHITECTURE 31 4.2. FEATURES 35 4.2.1. Digital Channel Filters 35 4.2.2. Digital Interference Cancellation Equipment (ICE) 35 4.2.3. Frequency Hopping 35 4.2.4. AFA and AFA+ 36 4.2.5. Filter Options 36 4.2.6. UL Squelch 36 4.2.7. Voltage Standing Wave Ratio (VSWR) 37 4.2.8. Status Information 37 4.2.9. Alarm Forwarding 37 4.3. COMPONENTS - MAIN AND EXTENSION UNIT 39 4.3.1. Downlink Final Amplifier 40 4.3.2. Power Supply Unit 42 4.3.3. Modem 43

4.3.3.1. Initstrings 43 4.3.3.2. Wireless Modem 44

4.3.4. Digital Channel Module (DCM) - Establishing a Local Connection from Laptop or PC 45

4.3.5. Battery Pack - Battery On/Off 47 4.3.6. UL and DL Duplexer 49


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4.3.7. External Alarm Controller - EAC-Card 50 4.3.7.1. LEDs 51 4.3.7.2. External Alarms 52 4.3.7.3. Summary Alarm 54

5. MAINTENANCE 55 5.1. GENERAL 55 5.2. REPLACEMENT OF COMPONENTS 55 5.2.1. Power Supply 57 5.2.2. Modem 57 5.2.3. Battery Pack 58 5.2.4. Status LED 59 5.2.5. Channel-kits and Extension-kits - Node G 935 and Node G 1835 60

5.2.5.1. Upgrading the Main Unit from Two to Four Channels 60 5.2.5.2. Upgrading the Main Unit to More than Four Channels 60 5.2.5.3. Upgrading the Extension Unit from Six to Eight Channels 60

5.2.6. Mounting a 4-channel-kit, Exemplary Node G 1835 61 5.2.6.1. Mounting the Final Amplifier 1805-1880 63 5.2.6.2. Mounting the DCM Extension UL/DL 2-band 1710-1785 64 5.2.6.3. Connecting the cables from the Final Amplifier and the DCM Extension 65 5.2.6.4. Fasten the cable clamps and the cable fasteners 67

6. ILLUSTRATIONS 69 6.1. CABINET DRAWINGS 69 6.2. LAYOUT 70

7. SPECIF ICATIONS 73 7.1. IDENTIFICATION NUMBERS - MAIN UNITS 73 7.2. IDENTIFICATION NUMBERS - EXTENSION UNITS 73 7.3. MAIN UNIT 74 7.3.1. Mechanical Specification Main Unit 74 7.3.2. Environmental Specification Main Unit 74 7.3.3. Electrical Specification Node G 935, 935R, 938, 938R, 941, 941R and 1835 75 7.3.4. Electrical Specification Node G 1835, 1838 and 1841 78 7.3.5. Electrical Specification Node G 840 and 1940 80 7.4. EXTENSION UNIT 82 7.4.1. Mechanical Specification Extension Unit 82 7.4.2. Environmental Specification Extension Unit 82 7.5. BATTERY PACK 83 7.6. MODEMS 83

8. PARTS L ISTS 85 8.1. MAIN UNIT 85 8.1.1. Node G 935 MU, 938 MU, 941 MU, 840 MU, 1940 MU and 1835 MU 85 8.1.2. Node G 1838 MU and 1841 MU 86 8.1.3. Modems 86

8.2. EXTENSION UNIT 87 8.2.1. Node G 935R EU, 935 EU, 938 EU, 941 EU, 840 EU and 1940 EU 87 8.2.2. Node G 1838 EU and 1841 EU 88

9. NODE G FREQUENCY SHIFTING (FS) 89 9.1. GENERAL 89 9.2. INTRODUCTION TO NODE G FREQUENCY SHIFTING (FS) 89 9.2.1. Purpose 89 9.2.2. The Node G FS Network Element 90 9.3. CONNECTION OF THE ANTENNA CABLES 91 9.4. WIRELESS MODEM 92 9.5. DIGITAL ARCHITECTURE OF NODE G FS-BTU/RU 93 9.6. SPECIFICATIONS OF NODES G FS BASE STATION

TRANSCEIVER (BTS) AND REMOTE UNIT (RU) 95 9.6.1. Identification numbers - Main Unit 95 9.6.2. Identification numbers - Extension Unit 95 9.6.3. Main Unit 96

9.6.3.1. Mechanical Specification Main Unit 96 9.6.3.2. Environmental Specification Main Unit 96

9.6.4. Electrical Specification Node G 935 FS-BTS, 935 FS-RU, 938 FS-RU, 941 FS-RU, 1835 FS-BTS, 1835 FS-RU, 1838 FS-RU, 1841 FS-RU 97

9.6.5. Extension Unit 99 9.6.5.1. Mechanical Specification Extension Unit 99 9.6.5.2. Environmental Specification Extension Unit 99

9.6.6. Battery Pack 100 9.6.7. Modems 100 9.7. PARTS LISTS NODE G FS 102 9.7.1. Main Unit 102

9.7.1.1. Node G 935 FS-BTS, 935 FS-RU, 938 FS-RU, 941 FS-RU 102 9.7.1.2. Node G 1835 FS-BTS, 1835 FS-RU, 1838 FS-RU, 1841 FS-RU 103

9.7.2. Node G 938 EU and 1835 EU 104 9.7.3. Modems 104

10. INDEX 105

11. LIST OF CHANGES 106


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FIGURES AND TABLES figure 3-1 Positions of drilling holes .......................................................................... 20 figure 3-2 Wall mounting procedure.......................................................................... 21 figure 3-3 Wall mounting procedure, door opening radius ........................................ 21 figure 3-4 Pole mounted units................................................................................... 22 figure 3-5 Back-to-back pole mounting ..................................................................... 23 figure 3-6 Grounding bolt .......................................................................................... 25 figure 3-7 Power supply plug .................................................................................... 26 figure 3-8 Mains connector ....................................................................................... 26 figure 3-9 Front view of antenna connections from Node G 938 / 1838; 840 / 1940 27 figure 3-10 Front view of antenna connections; Extension Unit from

Node G 938 / 1838................................................................................. 27 figure 3-11 Front view of antenna connections from Main Unit from

Node G 935 / 1835; 941 / 1841.............................................................. 28 figure 3-12 Front and top cover screws .................................................................... 29 figure 3-13 Position of mains power switch............................................................... 30 figure 4-1 Block diagram Node G x38 Main Unit....................................................... 31 figure 4-2 Block diagram Node G x35 Main Unit....................................................... 32 figure 4-3 Digital architecture of one path of Node G................................................ 33 figure 4-4 RF path of a Node G x40, exemplary ....................................................... 34 figure 4-5 Layout of a Node G x40............................................................................ 39 figure 4-6 Node G x40 and x41 MCPA DL final amplifier.......................................... 40 figure 4-7 Node G x38 SCPA DL final amplifier ........................................................ 40 figure 4-8 Node G x35 SCPA DL final amplifier ........................................................ 41 figure 4-9 Position of the SCPA DL final amplifier in the door of Node G x35........... 41 figure 4-10 Power supply .......................................................................................... 42 figure 4-11 Modem MC35......................................................................................... 44 figure 4-12 Cable from the modem to the DL IN duplexer ........................................ 44 figure 4-13 Digital channel module ........................................................................... 45 figure 4-14 Establishing a local connection from laptop or PC to the DCM of the Main

Unit ........................................................................................................ 46 figure 4-15 Battery pack, exemplary ......................................................................... 47 figure 4-16 Battery pack installed and its connection to DCM................................... 47 figure 4-17 Position of the battery disconnect button on the EAC-card of the Main

Unit ........................................................................................................ 48 figure 4-18 Duplexer, UL IN...................................................................................... 49 figure 4-19 Duplexer, DL IN...................................................................................... 49 figure 4-20 Duplexers installed ................................................................................. 49 figure 4-21 EAC-card................................................................................................ 50 figure 4-22 EAC-card, installed................................................................................. 50 figure 4-23 Position of the LEDs on the EAC-card of the Main Unit.......................... 51 figure 4-24 Function of LEDs on the EAC-cards of Main and Extension Unit ........... 51 figure 4-25 Pin assignment ....................................................................................... 52 figure 4-26 Configuration of external alarm clamps .................................................. 52 figure 4-27 Summary alarm relay ............................................................................. 54 figure 4-28 Relay contacts, alarm condition.............................................................. 54 figure 5-1 Use the lanyards of the accessory kit to keep cover and drawer.............. 56 figure 5-2 Power supply screws................................................................................ 57

figure 5-3 Replacement of the modem ..................................................................... 57 figure 5-4 Location of battery pack ........................................................................... 58 figure 5-5 Battery connection to DCM....................................................................... 58 figure 5-6 Battery pack ............................................................................................. 58 figure 5-7 Status LED ............................................................................................... 59 figure 5-8 Connection of the external alarm clamps ................................................. 59 figure 5-9 Parts of the 4-channel-kit, exemplary Node G1835.................................. 61 figure 5-10 Cut-out and connectors of the door, exemplary Node G 1835............ 62 figure 6-1 Cabinet of a Node G................................................................................. 69 figure 6-2 Layout of the Node G x40 Main Unit, exemplary ...................................... 70 figure 6-3 Layout of the Node G x35 Main Unit, exemplary ...................................... 71 figure 6-4 Layout of the Node G x38 Main Unit, exemplary ...................................... 72 figure 9-1 Front view of antenna connections from Node G 935 FS-BTS / 1835 FS-

BTS........................................................................................................ 91 figure 9-2 Front view of antenna connections from Node G 935 FS-BTS / 1835 FS-

BTS with Rx/Tx separate option............................................................. 91 figure 9-3 Cable from the modem to the double-dualband coupler........................... 92 figure 9-4 Block diagram Node G x35/x38 FS (Remote Unit) ................................... 93 figure 9-5 Block diagram Node G x41 FS (Remote Unit) .......................................... 93 figure 9-6 Block diagram Node G x35 FS (BTS Unit) ............................................... 94 table 1-1 List of international contact addresses....................................................... 13 table 3-1 Required length of thread-bolts ................................................................. 22 table 3-2 Components of pole mounting kit .............................................................. 23 table 3-3 Pin assignment of mains connector ........................................................... 26 table 4-1 Initstrings for GSM modems ...................................................................... 43 table 4-2 Pin assignment of relay contacts ............................................................... 54 table 5-1 Specified torques for various screw types ................................................. 56 table 5-2 Parts and material numbers of the 4-channel-kit, exemplary Node G1835 61


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For your notes:

1 General

1. GENERAL

1.1. ABBREVIATIONS A/D Analogue to Digital Converter AFA Automatic Frequency Allocation AFA+ Automatic Frequency Allocation Plus AGC Automatic Gain Control ALC Automatic Level Control ARFCN Absolute Radio Frequency Channel Number BCCH Broadcast Control Channel BTS Base Transceiver Station CDMA Code Division Multiple Access D/A Digital to Analogue Converter DAS Distributed Antenna System DCM Digital Channel Module D-ICE Digital Interference Cancellation Equipment DL Downlink DSP Digital Signal Processor EAC External Alarm Controller EDGE Enhanced Data Rates for GSM Evolution ESD Electrostatic Discharge ETS European Telecommunication Standard ETSI European Telecommunication Standards Institute FRU Field Replaceable Unit GPRS General Packet Radio Service GSM Global System for Mobile Communication HID Hardware Inventory Data HSN Hopping Sequence Number I2C Bus Inter Integrated Circuit Bus (Philips) ICE Interference Cancellation Equipment ID No Identification Number LED Light Emitting Diode LMT Local Maintenance Terminal LNA Low Noise Amplifier LO Local Oscillator MAIO Mobile Allocation Index Offset MCPA Multi Carrier Power Amplifier Ncm Newton centimetre NSB Network Supervision Box OMC Operation and Maintenance Centre PA Power Amplifier PPP Point-to-Point Protocol PSTN Public Switched Telephone Network PSU Power Supply Unit R Rail Frequencies RF Radio Frequency RLP Radio Link Protocol RSCP Received Signal Code Power


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RSSI Receive Signal Strength Indication RTC Real Time Clock RX Receiver SCPA Single Carrier Power Amplifier SDA Serial Data SMS Short Message Service SNMP Simple Network Management Protocol TS Transmitter UE User Equipment UL Uplink UMTS Universal Mobile Telecommunication System UPS Uninterruptible Power Supply UTC Universal Time Coordinate UTRA UMTS terrestrial radio access VCO Voltage Controlled Oscillator VSWR Voltage Standing Wave Ratio WCDMA Wide-band Code Division Multiple Access MU Main Unit EU Extension Unit

1 General

1.2. HEALTH AND SAFETY WARNINGS 1. Only suitably qualified people are 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. Obey all general and regional installation and safety regulations relating to work

on high voltage installations, as well as regulations covering correct use of tools and personal protective equipment.

4. Keep operating instructions within easy reach and make them available to all

users. 5. It is the responsibility of the network provider to implement prevention measures

to avoid health hazards which may be associated to radiation from the antenna(s) connected to the unit.

6. Make sure, access is restricted to qualified personnel. 7. Only licence holders for the respective frequency range are allowed to operate

this unit. 8. Use this equipment only for the purpose specified by the manufacturer. Do not

carry out any modifications or fit any spare parts which are not sold or recommended by the manufacturer. This could cause fires, electric shock or other injuries.

9. Due to power dissipation, the network element may reach a very high

temperature. Do not operate this equipment on or close to flammable materials. 10. Before opening the unit, disconnect mains. 11. ESD precautions must be observed! Before commencing maintenance work, use

the available grounding system to connect ESD protection measures. 12. This unit complies with European standard EN60950. 13. Make sure the network element settings are according to the intended use (see

also product information of manufacturer) and regulatory requirements are met. 14. Although the network element is internally protected against overvoltage, it is

strongly recommended to earth the antenna cables close to the network element’s antenna connectors for protection against atmospheric discharge.


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1.3. ABOUT ANDREW WIRELESS SYSTEMS Andrew Wireless Systems 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. Andrew Wireless Systems has engineering and manufacturing facilities in Germany, Italy and the USA. In addition, it maintains field engineering offices throughout the world. Andrew Wireless Systems GmbH operates a quality management system which complies with the requirements of ISO 9001. All equipment is manufactured using highly reliable material. In order to ensure constant first-rate quality of the products, comprehensive quality monitoring is conducted at all fabrication stages. Finished products leave the factory only after a thorough final acceptance test, accompanied by a test certificate guaranteeing optimal operation. The declaration of conformity for the product is available upon request from the local offices or from Andrew Wireless Systems directly. Any intervention must be carried out by authorized persons only. For technical assistance, contact the local office or Andrew Wireless Systems directly at one of the following addresses:

Andrew Wireless Systems GmbH

Industriering 10 86675 Buchdorf

Germany Phone: +49 9099 69-0

Fax: +49 9099 69-930 E-mail: [email protected]

for The Americas:

Wireless Innovations Group Andrew Corporation

Phone: +1 888 297 6433 E-mail: [email protected]

When set-up is performed according to this manual, the system will operate without complications for a significant length of time.

1 General

1.4. INTERNATIONAL CONTACT ADDRESSES Australia Austria Brazil

6 Stuart Street Padstow NSW 2211 Australia

Weglgasse 10 Wien-Schwechat 2320 Austria

Av Com Camilo Julio 1256 Predio B Zonal Industrial CP 597 Sorocaba SP 18086-000 Brazil

Phone +61 2 9774-4200 Phone +43 1706 3999-10 Phone +55 15 2102-4000 Fax +61 2 9774-4500 Fax +43 1706 3999-9 Fax +55 15 2102-4001 E-mail E-mail E-mail [email protected] [email protected] [email protected]

Canada China Czech Republic

606 Beech St W Whitby ON L1N 5S2 Canada

RM 915 Chevalier Commercial Centre 8 Wang Hoi Rd Kowloon Bay SAR Hong Kong

U Moruší 888 Pardubice 53006 Czech Republic

Phone +1 905 668-3348 Phone +852 3106 6100 Phone +420 46 63012-80 Fax +1 905 668-8590 Fax +852 2751 7800 Fax +420 46 63012-98 E-mail E-mail E-mail [email protected] [email protected] [email protected]

France Italy Switzerland

28 Rue Fresnel Z.A Pariwest BP 182 Coignières cedex 78313 France

Via de Crescenzi 40 Faenza 48018 Italy

Tiergartenweg 1 4710 Balsthal CH-4710 Switzerland

Phone +33 1 300-54550 Phone +39 0546 697111 Phone +41 62 386-1260 Fax +33 1 346-11374 Fax +39 0546 682768 Fax +41 62 386-1261 E-mail E-mail E-mail [email protected] [email protected] [email protected]

UK U.S.A.

Ilex Bldg Mulberry Business Park Fishponds Rd Wokingham Berkshire England RG41 2Gy

620 North Greenfield Parkway Garner, NC 27529 United States

Phone +44 118 936-6700 Phone +1 919 329-8700 Fax +44 118 936-6773 Fax +1 919 329-8950 E-mail E-mail [email protected] [email protected]

table 1-1 List of international contact addresses


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For your notes:

2 Introduction

2. INTRODUCTION

2.1. PURPOSE Wireless communication systems provide a two-way information transfer (voice and data) between a base station and multiple mobiles within a given area. Environmental variables such as physical structures both man-made (buildings) and natural (mountains) attenuate signals in the transmission path, which reduce the transport signal’s strength. This attenuation leads to a reduction in quality and data rate and eventually prohibits the system’s use entirely. A Node G is specifically designed to extend coverage and to enhance quality. In the downlink (DL), the Node G picks up signals coming from the base station, filters them, amplifies them, and retransmits them to the mobile. In the uplink (UL), it picks up signals from the mobile, filters them, amplifies them, and retransmits them to the base station. The Node G constantly monitors the quality of the signals passing through it, while simultaneously electronically decreasing isolation requirements.

2.2. THE NODE G NETWORK ELEMENT The Node G is more than a simple enhancer. The unit is ideal for the first phase of the network rollout, and for any subsequent phase where cost, coverage, and quality need to be optimized. The Node G’s primary function is to increase signal strength between a mobile and a base station in areas where high-quality voice or high-speed data service is not available. This may include extending coverage areas such as small towns, shaped coverage around man-made or natural obstacles, or extending a network beyond its primary target areas. The unit is an excellent choice for any coverage area for urban center to the rural highway. From its power level to its setup, the Node G has intelligence and performance that rival a base station. The Node G is self-diagnosing, self-adaptive, and virtually maintenance free.


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2.3. QUICK START CHECKLIST Read the health and safety warnings in chapter 1.2 Health and Safety Warnings. Setting up the Node G is quick and easy. The following step-by-step procedure provides a quick overview for a correct setup and optimization.

a. Required Equipment • Node G • donor antenna • coverage antenna(s) or distributed antenna system (DAS) • coaxial cables • connectors (RF, mains) • laptop (Win XP or Win 2000) with Ethernet port and mains cable • data cable (CAT5, 100 MBit).

b. Required Information Make sure to have the following information at hand: • important on-site conditions (e. g. BTS location, mains supply, etc.) • channels to be enhanced / amplified • data of mandatory fields of Connectivity and Upload page.

c. Procedure

1. Install the donor (linear polarized recommended) and coverage antennas. 2. Install the coaxial cables from the Node G to the antennas. 3. Install the Node G units (Main Unit, Extension Unit); see chapter 3.1

Mechanical Installation.

Note: Take care to ground the unit correctly as instructed in chapter 3.2.2 Grounding.

4. If installing an Extension Unit connect cable between Node G Main Unit and Extension Unit.

5. Connect power and the antenna coaxial cables to the Node G. 6. Open the Main Unit. 7. Establish a connection from the laptop or computer to the DCM.

2 Introduction

8. Login to the unit and follow the installation wizard option for easy installation. a. Optimize the donor antenna performance. b. To select the channels for enhancement, choose between the

“Measurement Assisted Channel Assignment” or “Unassisted Channel Assignment” from the Setup Wizard page.

c. Enter the desired output power in the downlink. d. Enter the relative uplink gain and click the “Program” button. e. Select the “Connectivity and Upload” button, to setup the modem (if

applicable) and to enter data in the other user fields. f. Select the “Technician Setup” button, to change additional system

settings, e.g. ICE, frequency hopping, EDGE. The “Technician Setup” is also accessible from the home page.

9. The Node G setup is complete. 10. Open the “Save Configuration to Laptop” menu for record keeping

purposes. 11. Unplug the computer, close the Node and tighten all screws.

Note: To do a power cycle, disconnect the battery pack by pushing the battery disconnect button on the battery charge module.


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For your notes:

3 Installation

3. INSTALLATION

3.1. MECHANICAL INSTALLATION

3.1.1. 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 recommended only to use the mounting hardware delivered by the

manufacturer. If different mounting hardware is used, the specifications for stationary use of the unit must not be exceeded.

Note: Exceeding the specified load limits may cause the loss of warranty. 3. The unit is considerably heavy. Make sure that a suitable mounting

surface is used. Ensure there is adequate manpower to handle the weight of the system.

4. Due to power dissipation, the unit may reach a very high temperature.

Ensure sufficient airflow for ventilation. Above and below the units a minimum distance of 300 mm to ceiling, floor, etc. has to be kept. This distance must also be observed between two units if they are mounted one above the other. This value does not apply to the distance between Main Unit and Extension Unit.

5. When connecting and mounting the cables (RF, mains, ...) ensure no

water can penetrate into the unit through these cables. If any different or additional mounting material is used, ensure that the mounting remains as safe as the mounting designed by the manufacturer. Ensure that the static and dynamic strengths are adequate for the environmental conditions of the site. The mounting itself must not vibrate, swing or move in any way that might cause damage to the unit.

Note: The Node G is delivered with a pre-mounted front cover. This cover is of vital importance for the correct forced airflow for passive cooling. Thus, do not operate the unit without cover.


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3.1.2. Wall Mounting Procedure

• Check the wall mounting kit and the wall to determine their suitability.

• The maximum distance between the Node G Main Unit and Extension Unit is 1000 mm.

• Mark the position of the eight drilling holes (four per unit) for the Main and the Extension Unit according to figure 3-1. Please observe that the figure always shows a pair of drill holes for each position. Only drill one of each pair.

•

figure 3-1 Positions of drilling holes

3 Installation

Note: 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.

• Drill four holes (four per unit) at the marked positions and insert dowels*. * The dowels are not part of the delivery (and thus not illustrated in the figure) since the suitable

type depends on the on-site conditions (the material of wall). Therefore, use dowels that are appropriate for the mounting surface.

• Use a cap nut or locknut to screw the four M8 screws into the dowels. • Use a hex wrench, opening 17 (old standard) or 16 (new standard), to loosen the

M10 hexagon head screws (four per unit) by which the mounting brackets are fastened to the cabinet sides.

• Mount the mounting brackets to the screws, and fasten them using the M8 washers, locking rings, and hex nuts that are part of the wall mounting kit.

• Hang the cabinets into the brackets and fasten them with the M10 hexagon head screws *.

figure 3-2 Wall mounting procedure

* If other screws than the ones delivered by the supplier are used for fastening, these must have a diameter of at least 8 mm and an appropriate length (depending on the dowels). Additionally, make sure they are adequate for supporting a maximum weight of 50 kg per unit.

figure 3-3 Wall mounting procedure, door opening radius


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3.1.3. Pole Mounting Procedure The following figure illustrates the pole mounting option back-to-back.

figure 3-4 Pole mounted units

Before starting the mounting procedure, check the pole diameter of the pole to which the units will be installed. Then, cut the thread-bolts (see table 3-2 Components of pole mounting kit, pos. 5) to the required length according to the following table:

Pole-diameter (mm) 100 110 120 130 140 150 160 170 180 190 200Length of thread-bolt (mm) 216 226 236 246 256 266 276 286 296 306 316Length of cable bridge (mm) (back-to-back) typical 1000; min 950

table 3-1 Required length of thread-bolts

3 Installation

The pole mounting kit 'back-to-back' consists of the following parts in different quantities:

No Part 1 Pole mounting brace 2 Washer DIN 9021 – 8.4 3 Nut M8 DIN 934 4 Spring ring DIN 127 – A8 5 Thread-bolt M8 6 Washer M8 DIN 125

table 3-2 Components of pole mounting kit The numbers in the above table refer to the numbering of the components in the following figure.

figure 3-5 Back-to-back pole mounting

Dismount the mounting brackets from the cabinets of the units by loosening the hexagon head screws M10x20 by which the mounting brackets are screwed to the housing (four per unit). Do not unscrew those screws, only loosen them by approx. three turns and take off the brackets. Fasten the mounting brackets to the pole using the corresponding mounting kit as illustrated above.


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3.2. ELECTRICAL INSTALLATION

3.2.1. 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. Although the unit is internally protected against overvoltage, it is strongly recommended to earth the antenna cables close to the unit’s antenna connectors for protection against atmospheric discharge. In areas with strong lightning it is strongly recommended to insert additional lightning protection.

4. Hard wired installation of mains supply for the unit requires an easily accessible separation device in the mains circuit.

5. Make sure that an appropriate circuit breaker and an overcurrent limiting device are connected between mains and the unit.

6. A connection of mains supply to a power socket requires the power socket to be nearby the unit.

7. The unit might be supplied from IT mains. (The maximum nominal line to line voltage must not exceed 400 VAC).

8. Incorrectly wired connections can destroy electrical and electronic components.

9. To avoid corrosion at the connectors caused by electrochemical processes, the material of the cable connectors must not cause a higher potential difference than 0.6V (see electrochemical contact series).

10. It is sufficient to tighten the 7/16 or N antenna connector hand-screwed. Any use of a tool (e.g. pair of pliers) might cause damage to the connector and thus lead to malfunctioning of the unit.

11. For unstable electric networks which frequently generate spikes, it is advised to use a voltage limiting device.

12. The unit complies with the surge requirement according to EN 61000-4-5 (fine protection), however, it is recommended to install an additional medium (via local supply connection) and/or coarse protection (external surge protection) depending on the individual application in order to avoid damage caused by overcurrent.

13. Observe the labels on the front panels before connecting any cables.

3 Installation

3.2.2. Grounding Grounding must be carried out. Connect an earth-bonding cable to the grounding connection provided at the outside of the remote unit. Do not use the grounding connection to connect external devices.

figure 3-6 Grounding bolt After loosening the hex nut, connect the earth-bonding cable between the two washers as illustrated in the figure above. Then, fasten all parts again with the hex nut.

The PE cables must have a minimum cross section of 16mm2.


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3.2.3. 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. The power supply plug is included with the Node G. The correct wiring of the power supply plug is as follows:

figure 3-7 Power supply plug figure 3-8 Mains connector

Mains AC Mains DC PIN Connection Colour Connection Colour 1 Phase brown not connected 2 Neutral blue -Vdc* black 3 not connected +Vdc* red 4 PE green / yellow PE green / yellow

table 3-3 Pin assignment of mains connector

A minimum cross section of 1.5 mm2 is required for the power supply connection. Each wire must observe the applicable national regulations regarding loop impedance, voltage drop, and methods of installation. Make sure to connect the correct voltage to the unit.

Note: Do not connect or disconnect the power cord at the mains connector while power is on. Turn off mains** power before connecting the power cord at the units, then, engage mains again.

* Black is always the negative potential while red is the positive one. ** Mains power must be interrupted with an external AC or DC breaker. For the AC or DC breaker,

observe the following recommendation: 120 Volt / 20 Amp max. or 240 Volt / 16 Amp, single-phase, 50/60 Hz AC service is

needed, i.e. the external AC breaker should be 20 Amps max. for 120-Volt service or 16 Amps for 240-Volt service.

Option: 48 Vdc (36-72 Vdc). The external DC breaker should be 20 Amps.

Mains

3 Installation

3.2.4. Connection of the Antenna Cables The Node G’s antenna connectors are 7/16 female (optionally equipped with an N female adapter). All connectors are located at the bottom of the cabinet. An operator should refer to the documentation of the cable connector manufacturer for best mating procedures. Furthermore, the bending radius of the antenna cables should be maintained at all times. There are several issues to be considered when selecting the cable and antenna types.

• Highly directional antennas with good front-back-ratios (40 dB is typical) are recommended because they improve isolation and cell site selectivity.

• Smaller diameter cables are less expensive and easier to install but have worse performance.

Tighten the 7/16 or N connectors ONLY by hand. The use of pliers may cause damage to the connector and impair the performance of the Node G.

figure 3-9 Front view of antenna connections from Node G 938 / 1838; 840 / 1940

figure 3-10 Front view of antenna connections; Extension Unit from

Node G 938 / 1838

Coverage antenna (to mobile)

Donor antenna (to base station)

BTSMobile

Mobile 2


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figure 3-11 Front view of antenna connections from Main Unit from

Node G 935 / 1835; 941 / 1841

Coverage antenna (to mobile)

Donor antenna (to base station)

BTSMobileMobile 2

3 Installation

3.2.5. Opening the Cabinet - Mains Power Switch Read the health and safety warnings in chapter 1.2 Health and Safety Warnings and observe the following step-by-step procedure.

• Do not operate the Node G without terminating the antenna connectors. The antenna connectors may be terminated by connecting them to their respective antennas or to a dummy load.

• Only qualified personnel should carry out the electrical, mechanical, commissioning, and maintenance activities that require the unit to be powered on when open.

• When opening the Node G do not damage the warranty labels on the internal devices. The warranty is void if the seals are broken.

First remove the front cover plate by loosening the four front cover screws. The M5 socket head cap screws are circle-marked in the figure to the left. Do not remove those screws. When they are loosened, the front cover plate can be taken off. To open the housing, unscrew the nine M5 socket head cap screws (captive) of the top cover.

figure 3-12 Front and top cover screws

Note: Do not forget to reinstall the front cover afterwards to ensure safe operation.


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Note: Before closing the unit, make sure that the mains power switch inside is set to ON.

figure 3-13 Position of mains power switch

4 Functional Description

4. FUNCTIONAL DESCRIPTION

4.1. DIGITAL ARCHITECTURE The following figure shows the block diagram of a Node G x38.

figure 4-1 Block diagram Node G x38 Main Unit


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The following figure shows the block diagram of a Node G x35.

figure 4-2 Block diagram Node G x35 Main Unit


The following figure shows the digital architecture of one path of Node G.

figure 4-3 Digital architecture of one path of Node G

The Node G is designed to amplify signals between multiple mobiles and a base station. The unit consists of a filter and amplifier chain in the downlink and one filter and amplifier chain in the uplink. The uplink and downlink paths are connected via a duplexer on both ends of each path. In the uplink path, a signal originating from the mobile is separated from the downlink signal via the UL IN duplexer. It is then amplified by an integrated low noise amplifier (LNA) and forwarded to the digital channel module (DCM). The signal will be divided in the DCM to the two channels of the module. The DCM down-converts the signals to base-band, digitally filters them, amplifies them and then up-converts them in the two channels. In addition the interference cancellation technology is implemented in the DCM. Finally, the signals are sent to the final amplifier, summarized and combined with the downlink input signal in the DL IN duplexer. In the downlink path, a signal originating from the base station is separated from the uplink signal in the DL IN duplexer. It is then amplified by an integrated low noise amplifier (LNA) and forwarded to the digital channel module (DCM). The signal will be divided in the DCM to the two channels of the module. The DCM down-converts the signals to base-band, digitally filters them, amplifies them and then up-converts them. In addition the interference cancellation technology is implemented in the DCM. Finally, the signal is sent to the final amplifier and combined with the uplink input signal in the UL IN duplexer. The DCM is also responsible for communication and control of the entire unit.

DCM Front End

Channel 1 Down Converter Channel 1 Digital Path Up Converter LO

AGC_3 AGC_2

AGC_1

Shared Duplexer and LNA

Shared PA and Duplexer

Channel 1 Up Converter

Down Converter

LO

Switch

VCO and Synthesizer 1 VCO and Synthesizer 2 Ref VCO and Synthesizer

To Module 2-4

To Module 2-4

NSB DSP & Controller

This Section is Shared Among

all Modules

A/D

A/D

A/D

D/A

Ref AGC

B0161ALA


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Using a Node G x40 as an example, the following figure illustrates the positions of the RF components inside the Node G.

figure 4-4 RF path of a Node G x40, exemplary

DL final amplifier

Power supply unit Duplexer with LNA

Digital channel module with integrated controller

Duplexer

UL IN DL IN


4.2. FEATURES

4.2.1. Digital Channel Filters Each filter of the both channels selects a special channel from the GSM/EGSM frequency band. Filters are set automatically according to the channels set in “Setup Wizard” or “Technician Setup”. For further information about these menus refer to the User's Manual for Node G Software.

4.2.2. Digital Interference Cancellation Equipment (ICE) Digital ICE has been developed to enhance antenna isolation. This feature enables the Node G to provide coverage in areas where effectivity is decreased due to physical site limitations which cause insufficient antenna isolation. Antenna isolation is the RF loss measured between the donor antenna and the coverage antenna. If the gain of the network element exceeds the path loss, feedback in form of oscillation occurs. The isolation is usually dominated by the direct path loss from one antenna to the other, but reflections can contribute to or even affect antenna isolation. Digital ICE cancels the signal from the primary feedback path, thus allowing the gain of the network element to be increased. The required delay resulting from the on-site conditions is measured by the DCM module and set accordingly. For software setting commands please refer to the online help screens. The digital ICE function can be enabled or disabled in the “Technician Setup” page of the software. Isolation and gain margin * can be checked in the “Status and Reports” menu accessible via the home page of the web interface.

* gain margin = antenna isolation minus Node G gain

4.2.3. Frequency Hopping The Node G repeater supports Frequency Hopping (base band and synthesized hopping). The repeater follows the hopping of the individual TRx and thus of the covered mobiles. The hopping parameters like channel numbers, hopping sequence number (HSN) and mobile allocation index offset (MAIO) will be detected during the setup wizard or could be set in the Technician setup of the SW. The frequency hopping is done by the DCM.


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4.2.4. AFA and AFA+ BCCH Automatic Frequency Allocation (AFA) setting may be used if BTS uses fixed channels or baseband hopping only. In AFA mode, the Node-G attempts to receive and sync to the BCCH on the programmed channel. If it is unable to do this, the Node-G will scan for channels with decodable BCCH and lock to the channel with the same Cell ID, MCC and MNC as before. It will decode the CA list to ascertain the traffic channels. The Node G will then begin operating on the new channel set. AFA mode is useful if the channel allocation of the BTS is changed often. BCCH AFA+ (Plus) HSN/MAIO Detection setting may be used if the BTS uses fixed channels, baseband, or synthesized hopping. AFA Plus mode has all the functionality of AFA mode but additionally supports synthesized hopping by detecting HSN and MAIOs in use by the BTS. The Node G will begin searching for a new BCCH whenever BCCH sync is lost, the received Cell ID, MNC or MCC changes, or when the received CA list changes. The Node G will then determine the BTS operation mode. If it is determined to be synthesized hopping, the Node G will detect the HSN and MAIOs in use by the BTS. The Node G will then reconfigure the channels to match the new BTS operation parameters. Select the BCCH mode in the “Technician Setup” page of the software.

4.2.5. Filter Options The "Normal" filter has good filtering and minimum delay. Low delay makes for better operation in the overlap area which is covered by both the Node G and the donor BTS. The "High Attenuation" filter has better filtering, but slightly more delay. The "High Attenuation" filter should be used if any repeated ARFCNs are spaced by 3 channels or less. For example, if the BCCH was ARFCN 20, and one of the TCH was ARFCN 23, the high attenuation filter should be used on both the BCCH transceiver and the TCH transceiver. Select "Normal" or "High Attenuation" filter in the “Technician Setup” page of the software.

4.2.6. UL Squelch Uplink Squelch – This feature allows the uplink repeat path to be attenuated during times when no uplink activity is detected in the Node G coverage area. The feature works on a slot by slot basis. Only slots with traffic from the Node G coverage area are repeated with full gain. Other slots are attenuated. This feature eliminates the desense caused by the Node G in certain installations. Enable or disable the uplink squelch in the "Technician Setup” page of the software.


4.2.7. Voltage Standing Wave Ratio (VSWR) This feature enables the provider to query the status of the antenna system (antenna and cable). The voltage standing wave ratio of the DL output antenna port is measured. If the VSWR falls below the value set in the “Alarming Management” of the software, an alarm is released. The alarm can be forwarded to the OMC where the faults and irregularities can be acknowledged and eliminated promptly. The current VSWR value can be checked in the “Status and Reports” menu accessible via the home page of the web interface.

4.2.8. Status Information The Status and Reports menu, which is accessible via the home page of the web interface, provides information about the current gain, isolation, output level and receive signal strength indication (RSSI) values. The RSSI provides controlling and monitoring of the receive level of a Node B (DL RSSI) or user equipment (UL RSSI) to a Node G. It measures the level of the input signal by detecting the RF and converting the analogue level into a digital value. The data are processed and evaluated by software. A corresponding measurement is also made for the output levels. The module can detect RSSI and output levels per time slot.

4.2.9. Alarm Forwarding Alarms can be forwarded to a defined phone number or to the OMC if the Node G is equipped with a modem or a mobile station. This enables the provider to control and to query the status of the network via packet switched or circuit switched connection. Faults and irregularities can be recognized and eliminated. With an optional modem the Node G also provides an SMS feature, by which the unit is able to send out alarm messages as SMS. For further details please contact your supplier.


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For your notes:


4.3. COMPONENTS - MAIN AND EXTENSION UNIT The current configuration can be seen at the configuration list, which is part of the delivery and additionally as an electronic list accessible via software.

figure 4-5 Layout of a Node G x40

Downlink final amplifier

Power supply unit

UL-IN duplexer (Mobile)

Digital channel module

DL-IN duplexer (BTS)

EAC-card

Modem

Battery pack

LEDs


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4.3.1. Downlink Final Amplifier For the Node G x40 an MCPA (multi carrier power amplifier) is used. This is an error-correcting feed-forward amplifier. It has a high output power while maintaining superior intermodulation and linearity performance.

figure 4-6 Node G x40 and x41 MCPA DL final amplifier

For the Node G x38 an SCPA (single carrier power amplifier) is used. This is an amplifier for two channels. The advantage of a SCPA is a higher output power per channel while meeting ETSI spurious emissions.

figure 4-7 Node G x38 SCPA DL final amplifier

The Node Gx38 SCPA has an internal combiner in order to combine the two channels to one output. The Node G x41 SCPA does not combine the two channels and has therefore 3 dB more output power.


For the Node G x35 an SCPA (single carrier power amplifier) is used. This is an amplifier for two channels. The advantage of a SCPA is class AB. Due to the small dimensions the power amplifier can be positioned below the basic module on chassis the side and below the CDM Extension module on the door side of the cabinet.

figure 4-8 Node G x35 SCPA DL final amplifier

figure 4-9 Position of the SCPA DL final amplifier in the door of Node G x35


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4.3.2. Power Supply Unit The power supply unit is mounted in the door of the Main Unit. This device transforms mains power into a predefined DC voltage. When performing maintenance, ensure that all circuits are voltage-free and that the Node G is disconnected from mains.

figure 4-10 Power supply


4.3.3. Modem The modem is used to establish a remote connection to the Node G. The connection may be used to change the unit’s parameters, check and clear alarms or collect measurement and quality statistics. Furthermore, the modem is at the Node Gs request to alert the operator when there is an alarm. The modem may be over-the-air (wireless) or public switched telephone network (PSTN). It is possible to install the wireless modem or the PSTN modem on site.

Note: Check the communication mode between the modem and the terminal. The following parameters should be set for a GSM modem.

Bit rate / bit per second 9600 Baud Parity bit No parity Number of data bit 8 Bit Stop bit 1 Stop bit

These settings may only be changed locally. Should a different modem be used, the operator should ensure that the settings are changed prior to leaving the site.

4.3.3.1. Initstrings The initialization string depends on the operator’s network and the modem. It may be necessary to adjust the initstring in the field. The initstring for Node G web interface is factory set. Modem Network Initstring

GSM 900/1800 AT&fe0s0=2\q3+cbst=7,0,1;+ipr=57600;+csns=4 Siemens MC35 via Node G web

interface &fe0s0=2\q3+cbst=7,0,1;+ipr=57600;+csns=4

GSM 850/1900 AT&F^scfg="GPRS/ATS0/withAttach","off";e0s0=2\q3+cbst=7,0,1;+ipr=57600;+csns=4

Siemens MC56 / Siemens MC75

via Node G web interface

&f^scfg="GPRS/ATS0/withAttach","off";e0s0=2\q3+cbst=7,0,1;+ipr=57600;+csns=4

GSM-R AT&F^scfg="GPRS/ATS0/withAttach","off";e0s0=2\q3+cbst=7,0,1;+ipr=57600;+csns=4

TRM2 via Node G web interface

&f^scfg="GPRS/ATS0/withAttach","off";e0s0=2\q3+cbst=7,0,1;+ipr=57600;+csns=4

table 4-1 Initstrings for GSM modems


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4.3.3.2. Wireless Modem

The wireless modem allows remote control and maintenance of the Node. Parameters may be changed; alarm and measurement statistics may be acknowledged and collected in the OMC. The modem is installed in the sidewall of the unit. For technical data of the MC35 refer to chapter Specification \ Modem.

figure 4-11 Modem MC35

The modem output is connected to the modem coupler port of the DL IN duplexer.

figure 4-12 Cable from the modem to the DL IN duplexer

Note: The modems MC56 and MC75 are identically constructed with modem MC35.


4.3.4. Digital Channel Module (DCM) - Establishing a Local Connection from Laptop or PC

The task of the digital channel module (DCM) is to filter and amplify any signals passing through it. In addition it takes measurements of the input and output signals and decodes the air interface to ensure proper setup and operation. Finally it performs the interference cancellation algorithms, which eliminate the normal problems associated with isolation, and has an integrated controller for the entire Node G, which maintains a web server for local and remote communication. This process is accomplished by both analogue and digital means. The DCM is able to amplify two channels for uplink and downlink. The UL power amplifier is integrated in the DCM.

figure 4-13 Digital channel module

In the DCM frequency hopping is integrated (see features of Node G).


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Establishing a Local Connection from Laptop or PC

figure 4-14 Establishing a local connection from laptop

or PC to the DCM of the Main Unit To establish a local connection from laptop or PC to the Main Unit, plug the cable in the DCM. The standard Ethernet CAT5 cable will be supplied with the Main Unit.


4.3.5. Battery Pack - Battery On/Off In case power fails, a battery backup system for controller and modem has been implemented. This provides enough power for the controller that is integrated into the DCM and the modem to operate for a limited period of time (battery backup time). Within this time, the Node G will initiate a call to the OMC and alert the operator that power has been lost. All other functions will cease to work in case of power failure. The battery pack is protected from deep discharge. When performing preventive maintenance, make sure that all circuits are voltage free by disconnecting the battery cable from the DCM. In case of a power cycle, it is sufficient to press the “Battery disconnect button” on the EAC-card to interrupt the voltage supply. After mains is connected again, the battery will be charged and the battery backup function will be available again. For technical data of the battery pack refer to chapter Specifications \ Battery Pack.

figure 4-15 Battery pack, exemplary figure 4-16 Battery pack installed and its connection to DCM


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Battery On/Off A pushbutton on the EAC-card is implemented to disconnect the battery pack from the controller. This forces a hard reset of the system. Once disconnected, the power to the controller will not be restored until the DC supply is again operational.

figure 4-17 Position of the battery disconnect button

on the EAC-card of the Main Unit

Battery disconnect button


4.3.6. UL and DL Duplexer The duplexer is used to isolate the uplink from the downlink, i.e. to separate the transmitting path from the receiving path. The pass band of the duplexer is the full band (EGSM). This allows the same Node G to be used regardless of its operator’s frequency plan. The UL and DL duplexers have multiple outputs, including the primary and extension path, plus forward and reverse probes used for auto setup, VSWR, and RSSI functions.

figure 4-18 Duplexer, UL IN figure 4-19 Duplexer, DL IN

figure 4-20 Duplexers installed

LNA LNA


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4.3.7. External Alarm Controller - EAC-Card The EAC circuit card is used as communication interface between the Main and Extension Units as well as general purpose housekeeping functions of the Main or Extension Unit.

Functions of EAC-card: - collection of the external alarms, door alarm, summary alarm - distribution of the I2C-bus to all devices - status LEDs

figure 4-21 EAC-card

figure 4-22 EAC-card, installed


4.3.7.1. LEDs Three LEDs are included on the EAC-card of the Main Unit. They are controlled via the I2C bus. The colours and illumination functions are:

LED 3 shows a permanent red light when the power of a connected Extension Unit is bad.

LED 2 shows a permanent yellow light when the battery backup is active.

LED 1 shows a permanent green light when the rechargeable battery is OK. It blinks when the battery is fully charged and is in the trickle-charge mode.

figure 4-23 Position of the LEDs on the EAC-card of the Main Unit

On the EAC-card of the Extension Unit is only one LED which shows a permanent green light when power is okay.

figure 4-24 Function of LEDs on the EAC-cards of Main and Extension Unit


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4.3.7.2. External Alarms The external alarms are used to monitor the status of one or more external devices via the Node G. A UPS or entry alarm is among the items that might be connected to the contact relay and monitored via the Node G. The cage clamp connectors are located on the EAC-card. Observe that the cross-sectional area of the wires to be connected must be in the range from 0.5 - 1.0 mm2. Do not use wire-end sleeves (wire cable ends). 2 GROUND 1 EXT_ALARM_4, not supported 4 GROUND 3 EXT_ALARM_3 6 GROUND 5 EXT_ALARM_2 8 GROUND 7 EXT_ALARM_1 10 PSTN_1_EXTERNAL 9 PSTN_1_INTERNAL 12 PSTN_2_EXTERNAL 11 PSTN_2_INTERNAL 14 GROUND 13 SUMMARY ALARM, LED GREEN 16 GROUND 15 SUMMARY ALARM; LED RED

figure 4-25 Pin assignment

External Alarms 1 to 3 Input voltage range 5 Vdc Recommended input line Potential free Nominal sink current to ground 15 mA Active level High or low set via software Connectors Cage clamps

figure 4-26 Configuration of external alarm clamps

12

16 15


There are two external cable glands at the bottom of the Main Unit, which may be used to connect the external devices. Please note that connecting the external devices by a wrong type of cable may result in a loss of the water-proofness.

All external alarms are defaulted to high (5 VDC) without connection. This setting may be changed on the external alarm page to active high or active low. The severity levels of the external alarms may be set via the web page. More information about the external alarm settings is available in the web page and online-help. Make sure that external alarms which are not required are set to active low or disable them; otherwise the status will always show an alarm. The names for each external alarm are user-definable on the external alarm page; renaming them to indicate the use of these alarms is recommendable.


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Pin 3 Pin 1 Pin 2

4.3.7.3. Summary Alarm The summary alarm is a DC potential-free contact relay. Observe that the cross-sectional area of the wires to be connected must be in the range from 0.14 - 1.5 mm2.

Pin No.:

1

2

3

figure 4-27 Summary alarm relay The following table indicates the three-connector pin out.

Pin No. Contact Maximum Resistive Load1 Open in alarm condition Max 1 A @ 50 VDC 2 Common Max 2 A @ 30 VDC 3 Closed in alarm condition Max 1 A @ 230 VAC

table 4-2 Pin assignment of relay contacts

figure 4-28 Relay contacts, alarm condition

5 Maintenance

5. MAINTENANCE

5.1. GENERAL Read the health and safety warnings in chapter 1.2 Health and Safety Warnings.

Note: The Node G does not require any preventative maintenance measures.

It is only recommended to replace the battery pack of the battery backup option after two years of usage as a preventive measure. The nominal lifetime of the battery pack is approximately two years under normal environmental conditions. In the event of a malfunction, the user should check the status of the antennas, feeder cables, connectors, and mains power before replacing any components.

5.2. REPLACEMENT OF COMPONENTS Read the health and safety warnings in chapter 1.2 Health and Safety Warnings. Maintenance of the Node G should be performed on a field replaceable unit (FRU) 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. It is not recommended to replace any components inside the Node G itself, except of PSU, battery pack and modem.

Note: Defect parts should only be replaced by original parts from the supplier. All interventions inside the housing are at one’s own risk.

Note: During maintenance ensure that the unit has been disconnected from mains.

To open the cabinet, observe the instructions in chapter 3.2.5 Opening the Cabinet - Mains Power Switch.

Note: If the battery pack is installed, disconnect the battery cable from the charge module connector as described in chapter 4.3.5 Battery , to ensure that all circuits are voltage-free.

Note: Before disconnecting any cables, label any unlabeled cables to ensure correct reconnection, and check the switch positions of the removed part to set the switches of the new part accordingly.

To replace an FRU, use the appropriate tools. The tools are provided along with the equipment. Replacement tools may be ordered from the supplier.


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The accessory kit includes lanyards to keep the cover and the drawer while maintenance activities as shown in the following figure.

figure 5-1 Use the lanyards of the accessory kit to keep cover and drawer

SMA connectors have a specified torque of 100 Ncm. All screws have a right-hand thread, turn the tool clockwise for tightening and counter-clockwise for loosening. Use an appropriate tool to fasten and unfasten connectors and screws. Do not over tighten the connectors or screws. The table below shows various screws with their respective torques.

Screw Type Tallow-Drop Socket Head Cap Countersunk Head Thread Size Specified Torque (in Ncm)

M 2.0 40 not in use 40 M 2.5 82 not in use 82 M 3.0 145 100 145 M 4.0 330 330 330 M 5.0 650 605 650

table 5-1 Specified torques for various screw types

Note: Depending on the configuration of the Node G the FRU can be equipped with a 50 Ω termination resistor. In such a case, use the termination resistor of the old FRU to terminate the respective connector of the replacement part.

Note: After the replacement of a component, check whether the system has to be levelled anew.

Note: Do not forget to reinstall the front cover after the replacement procedure to ensure safe operation.

If any FRU not contained in the following chapter needs to be replaced, contact customer service for additional instructions.

5 Maintenance

5.2.1. Power Supply • To remove a power supply, first disconnect all cables. • Unscrew the five captive M4 socket head cap screws (for the current version)

and/or seven M4 socket head cap screws (for the former version) by which each power supply is fastened to the cabinet.

• Use the captive screws to fasten the new power supply and reconnect all cables.

figure 5-2 Power supply screws

5.2.2. Modem Modem:

The modem is installed in the sidewall of the unit. Disconnect the cables. Loosen the elastic band. Replace the modem and tighten the elastic band. Connect the cables.

figure 5-3 Replacement of the modem


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5.2.3. Battery Pack

figure 5-5 Battery connection to DCM

figure 5-4 Location of battery pack

• Before removing the battery, disconnect the battery cable from DCM.

• Loosen the elastic band in the middle of the battery pack.

• To install the new module, proceed in reverse order.

figure 5-6 Battery pack

5 Maintenance

5.2.4. Status LED For local supervision, a status LED at the bottom of the node gives an indication of a summary alarm. The kit contains one alarm LED and three cables. This 2-colour LED provides visual equipment status information:

Green Normal operation condition Red Summary alarm

Status LED off

Check the cables to the external alarm connector. Check power switch inside of the node. Check mains cabling. Check mains power.

figure 5-7 Status LED

If the customer will not use the LED kit disconnect the three cables from the external alarm connector.

figure 5-8 Connection of the external alarm clamps

red

green

blue


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5.2.5. Channel-kits and Extension-kits - Node G 935 and Node G 1835 Node G 935 and Node G 1835 support 8 channels maximum. For upgrading the Main and/or Extension unit there are several kits available.

5.2.5.1. Upgrading the Main Unit from Two to Four Channels The Main Unit can be extended from two to four channels with the following kit: 7541384 4-Channel-kit Node G 935 7541446 4-Channel-kit Node G 1835 The 4-channel-kit for the Main Unit can be installed at site. Notice that the calibration adjustment at site is not as accurate as in the factory. Before installation read chapter 1.2 Health and Safety Warnings and chapter 5.1 General.

5.2.5.2. Upgrading the Main Unit to More than Four Channels The Main Unit can be extended from four to eight channels with the following kit: 7541360 Extension-kit Node G 935 Main Unit 7541447 Extension-kit Node G 1835 Main Unit

Note: The extension-kit has to be installed in the factory only.

5.2.5.3. Upgrading the Extension Unit from Six to Eight Channels The Extension Unit can be extended to more than four channels with an extension unit by installing folllwoing kits: 7544322 8-channel-kit Node G 935 7544321 8-Channel-kit Node G 1835 The 8-channel-kit for the Extension Unit can be installed in the field. Notice that the calibration adjustment in the field is not as accurate as in the factory.

5 Maintenance

5.2.6. Mounting a 4-channel-kit, Exemplary Node G 1835 For mounting a 4-channel-kit, proceed as described below. Check the parts of the 4-channel-kit as seen in the following figure and listed in the following table:

figure 5-9 Parts of the 4-channel-kit, exemplary Node G1835

Material

No Material Description Quantity

7518923-00 Final Amplifier 1805-1880 1,000 7162612 DCM Extension UL/DL 2-band 1710-1785 1,000 7164728 RF cable Multiflex 86 450mm 2,000 7516571 RF cable Multiflex 86 480mm 1,000 7500243 RF cable Multiflex 86 480mm 1,000 7541394 RF cable Multiflex 86 250mm 2,000 7541397 RF cable Multiflex 86 560mm 1,000 7541398 RF cable Multiflex 86 620mm 1,000 7164810 AC/DC cable flat cable 500mm 20 wires 1,000 7059360 Cable clamp Nylon A Ø 5,9mm 1,000 7111500 Cable clamp Polyamid Kd 3,2mm Gr.1 1,000 7059717 Raised head screw M4,0x 10mm DIN7985 A2 1,000 7010553 Raised head screw M3,0x 12mm DIN7985 A2 15,000 7010520 Raised head screw M3,0x 10mm DIN7985 A2 1,000 7151777 Plain Washer for M4,0 DIN125 polyamide 1,000 7014365 Plain Washer for M3,0 DIN9021 plastic 1,000 7114108 Fastex-cable fastener Br:2,2 Polyamid natur 5,000

table 5-2 Parts and material numbers of the 4-channel-kit, exemplary Node G1835


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figure 5-10 Cut-out and connectors of the door, exemplary Node G 1835

1. Cut-out for the 2nd DL amplifier.

2. DC connector DL

amplifier. 3. DCM Extension module

DC connector.

1

3

2

5 Maintenance

5.2.6.1. Mounting the Final Amplifier 1805-1880 Step 1 Mounting the final amplifier

Insert the power amplifier carefully in the cut-out of the door. Fasten it with the 15 M 3 x 12 mm raised head screws.

Note: In order not to cause a malfunction of the final amplifier fasten the screws from the center to out.

The marked screws have to be fastened with 80 Ncm. Fasten the other 11 screws tight.

Step 2 Connecting the cables to the final amplifier

1 Connect the DC cabel. 2 Connect the two RF cables

7541394. 3 Connect the RF cable

7541398 and position it to the cable conduit.

4 Note: It has to be

positioned in the cable conduit to avoid damage by squeezing.

5 Loosen the cable fastener

of the DCM connector.

1

22

3

4

5


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5.2.6.2. Mounting the DCM Extension UL/DL 2-band 1710-1785 Step 3 Mounting the DCM Extension and connecting the cables

Mount the DCM Extension module with the integrated screws. 1 Connect the RF cables

7541394 (picture 2/2) from the power amplifier.

2 Connect the RF cable





7164728. 7 Connect the flat ribbon

cable 7164810.

1 1

2

3

4 5 6

7

5 Maintenance

5.2.6.3. Connecting the cables from the Final Amplifier and the DCM Extension

Step 4 Connecting the cables from the final amplifier and the DCM Extension to...

Door Chassis See step

2/3

Loosen the terminator to connect the cable. Connect the RF cable 7541398 to the DL-duplexer.

3/2 Loosen the terminator to connect the cable. Connect the RF cable 7500243.

3/3 Connect the RF cable 7541397 to the DCM as shown.

3/4

Loosen the terminator to connect the cable. Connect the RF cable 7516571 to the DL-duplexer as shown.


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Step 4 Connecting the cables from the final amplifier and the DCM Extension to...

Door Chassis See step

3/5

Loosen the terminator to connect the cable. Connect the RF cable 7164728 to the UL-duplexer as shown (centre connector).

3/6

Loosen the terminator to connect the cable. Connect the RF cable 7164728 to the DCM as shown.

3/7 Connect the flat ribbon cable 7164810 to the DCM as shown.

5 Maintenance

5.2.6.4. Fasten the cable clamps and the cable fasteners Step 5 Fasten the cable clamps and the cable fasteners

Note: To avoid damage by squeezing, the cables have to be fastened with cable clamps and cable fasteners as shown in the picture.

1 Control that the cables are beneath the two fastening eyes as shown in the picture.

2 Screw the big cable clamp with the raised head screws and the plain washers.

3 Screw the small cable clamp with the raised head screws and the plain washers.

4 Fasten the cable and the cable fasteners as shown in the picture.

23

1

4

4

4


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For your notes:

6 Illustrations

6. ILLUSTRATIONS

6.1. CABINET DRAWINGS

figure 6-1 Cabinet of a Node G


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6.2. LAYOUT

figure 6-2 Layout of the Node G x40 Main Unit, exemplary

6 Illustrations



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7 Specifications

7. SPECIFICATIONS

7.1. IDENTIFICATION NUMBERS - MAIN UNITS

Node G Type ID No Max. Channel 840 MU 7162636 2

935 MU 7518855 4

935R MU 7518934 4

938 MU 7162642 2

938R MU 7164592 2

941 MU 7500032 2

941R MU 7500033 2

1835 MU 7518856 4

1838 MU 7162646 2

1841 MU 7500034 2

1940 MU 7162648 2

7.2. IDENTIFICATION NUMBERS - EXTENSION UNITS

Node G Type ID No Max. Channel 840 EU 7162637 4

935 EU (= 935R EU) 7518932 4

938 EU 7162643 2

938R EU 7164593 2

1835 EU 7518933 4

1838 EU 7162647 2

1940 EU 7162649 4 R = Rail Frequencies


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7.3. MAIN UNIT

Note: For detailed information, refer to the Environmental and Safety Specifications leaflet of the supplier.

7.3.1. Mechanical Specification Main Unit

Node G Type

Weight, kg (lb)

Height, Width, Depth, mm (in) Cooling

840 MU 28 (61.5) 935 MU 935R MU 32 (70.3)

938 MU 938R MU 941 MU 941R MU

28 (61.5)

1835 MU 32 (70.3) 1838 MU 1841 MU 1940 MU

28 (61.5)

546 x 320 x 310 (21.5 x 12.6 x 12.2)

Natural convection

All data is subject to change without notice.

7.3.2. Environmental Specification Main Unit Node G Type Ingress Protection Temperature Range, °C840 MU 935 MU 935R MU 938 MU 938R MU 941 MU 941R MU 1835 MU 1838 MU 1841 MU 1940 MU

IP 65 -33 to +50


7 Specifications

7.3.3. Electrical Specification Node G 935, 935R, 938, 938R, 941, 941R and 1835

Node G 938(R) and Node G 941(R) support 2+2 channels maximum, Node G 935(R) supports 4+4 channels maximum.

Description Electrical Specification

935R / 935 938R / 938 941R / 941

1835 Uplink 876 to 880 935R

938R 941R Downlink 921 to 925

Uplink 880 to 915 935 938 941 Downlink 925 to 960

Uplink 1710 to 1785

Frequency range UL, MHz

1835 Downlink 1805 to 1880

935R 935 1835

4 per cabinet 8 maximum

Channels 938R 938 941

2 per cabinet 4 maximum

GSM-R 35.0 @ 2 - 4* channels EDGE 31.5 @ 2 - 4* channels GSM-R 31.5 @ 6 - 8 channels *

935R 935 1835

EDGE 28.0 @ 6 - 8 channels * GSM-R 38.0 @ 2 - 4* channels 938R

938 EDGE 36.0 @ 2 - 4* channels GSM 41.0 @ 2 channels

Downlink power, dBm

941R 941 EDGE 39.0 @ 2 channels

* using air combining

GSM-R 31.0 @ 2 - 4 channels 935R 935 938R 938 941R 941 1835

EDGE 27.5 @ 2 - 4 channels

GSM 27.5 @ 6 - 8 channels

Uplink power, dBm

935R 935 1835 EDGE 24.0 @ 6 - 8 channels


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935R / 935 938R / 938 941R / 941

1835 Output power step size, dB 1 Output power accuracy, dB ±1.5 Minimum downlink input power at full output power, dBm -60

Maximum input power, dBm +16 Uplink noise figure, dBm +5.0

Standard 6.5 Delay, µs With ICE 9.5 935R 935 1835

95

938R 938 98

Maximum gain (automatic setting), dB

941 101 Gain adjust range, dB 40 in steps of 1 Return loss, dB 15 Channel bandwidth, kHz 200

-50 @ 400 kHz -60 @ 600 kHz Channel selectivity, dBc -80 @ 1 MHz

Far off selectivity (ultimate rejection), dBc -100

935R 935 938R 938 941

-36 Spurious emissions, dBm

1835 -30 Standard 90-265 Vac/40-60 Hz

Power supply Optional 48 Vdc

935R 935 1835

170 @ 2 channels 320 @ 4 channels 470 @ 6 channels 620 @ 8 channels Power consumption, Watts

938R 938 941 941R

220 @ 2 channels 440 @ 4 channels

7 Specifications


935R / 935 938R / 938 941R / 941

1835 Standard 7/16 DIN female RF connectors Optional N female 935R 935 1835

75

938R 938 78

Min. antenna isolation for max. gain, dB

941R 941 81



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7.3.4. Electrical Specification Node G 1835, 1838 and 1841 Node G 1838 supports 2+2 channels maximum, Node G 1841 supports 2+2 channels maximum.

Description Main Unit Electrical Specification 1835 / 1838 / 1841

Uplink 1710 to 1785 Frequency range UL, MHz Downlink 1805 to 1880

Channels 2 per cabinet 4 maximum

GSM 38.0 @ 2 channels EDGE 36.0 @ 2 channels GSM 38.0 @ 4 channels *

1838

EDGE 36.0 @ 4 channels * GSM 41.0 @ 2 channels *

Downlink power, dBm

1841 EDGE 39.0 @ 2 channels *


GSM 31.0 @ 2-4 channels Uplink power, dBm EDGE 27.5 @ 2-4 channels

Output power step size, dB 1 Output power accuracy, dB ±1.5 Minimum downlink input power at full output power, dBm -60


Standard 6.5 Delay, µs With ICE 9.5

1838 98 Maximum gain (automatic setting), dB 1841 101

Gain adjust range, dB 40 in steps of 1 Return loss, dB 15 Channel bandwidth, kHz 200


7 Specifications

Description Main Unit Electrical Specification 1835 / 1838 / 1841


Spurious emissions, dBm -30 Standard 90-265 Vac/40-60Hz

Power supply Option 48 Vdc

Power consumption, Watts 220 @ 2 channels 440 @ 4 channels

Standard 7/16 DIN female RF connectors Optional N female 1838 78 Min. antenna isolation for max.

gain, dB 1841 81



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7.3.5. Electrical Specification Node G 840 and 1940 Node G 840 and Node G 1940 support 2+4 channels maximum.

Description Main Unit Electrical Specification

840 1940

Uplink 824 to 849 840 Downlink 869 to 894 Uplink 1850 to 1910


1940 Downlink 1930 to 1990

Channels 2 per cabinet 6 maximum

GSM 40.0 @ 2 channels EDGE 36.5 @ 2 channels GSM 37.0 @ 4 channels EDGE 33.5 @ 4 channels GSM 35.0 @ 6 channels EDGE 31.5 @ 6 channels GSM 34.0 @ 8 channels 1

Downlink power, dBm *

EDGE 30.5 @ 8 channels 1 GSM 27.5 @ 2-8 channels 1 Uplink power, dBm EDGE 24.5 @ 2-8 channels 1

1 for more than 6 channels contact Andrew Output power step size, dB 1 Output power accuracy, dB ±1.5 Minimum downlink input power at full output power, dBm -60


Standard 6.5 Delay, µs With ICE 9.5

Maximum gain (automatic setting), dB 100 Gain adjust range, dB 60 to 100 Return loss, dB >15 Channel bandwidth, kHz 200


7 Specifications

Description Main Unit Electrical Specification

840 1940


Spurious emissions, dBm -13 Standard 90-265 Vac/40-60Hz

Power supply Optional 48 Vdc

Power consumption, Watts 335 baseline plus 135 per dual channel

Standard 7/16 DIN female RF connectors Optional N female

Min. antenna isolation for max. gain, dB 80

All data is subject to change without notice. * Node G 1940: The manufacturer’s rated output power of this equipment is for single carrier operation. For

situations when multiple carrier signals are present, the rating would have to be reduced by 3.5 dB, especially where the output signal is re-radiated and can cause interference to adjacent band users. This power reduction is to be by means of input power or gain reduction and not by an attenuator at the output of the device.


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7.4. EXTENSION UNIT


7.4.1. Mechanical Specification Extension Unit

Node G Type

Weight, kg (lb)

Height, Width, Depth, mm

(in) Cooling

840 EU 28 (61.5) 935 EU

935R EU 32 (70.3)

938 EU 938R EU 28 (61.5)

1835 EU 32 (70.3) 1838 EU 1940 EU 28 (61.5)

546 x 320 x 310 (21.5 x 12.6 x 12.2) Natural convection


7.4.2. Environmental Specification Extension Unit

Node G Type Ingress Protection Temperature

Range;°C 840 EU 935 EU

935R EU 938 EU

938R EU 1835 EU

1838 EU 1940 EU

IP 65 -33 to +50


7 Specifications

7.5. BATTERY PACK

Battery Pack Battery type NiCd Battery capacity 600 mAh Nominal output voltage 12 Vdc Backup time 5 - 8 minutes Charge time 4.5 hours

Major features Battery charge, HID,

battery voltage measurement trickle-charge mode


7.6. MODEMS

Modem Service GSM GPRS

Service connection Circuit switched Packet switched

Physical connection RS232; USB; (only for separate use)

Power consumption 4 W average, 10 W peak Connectors Data, power, RF


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8 Parts Lists

8. PARTS LISTS

8.1. MAIN UNIT The following lists contain all FRUs that are available for the Node G Main Unit. The Node G configuration is available in the web interface.

8.1.1. Node G 935 MU, 938 MU, 941 MU, 840 MU, 1940 MU and 1835 MU Node G Type Description Main Unit - Parts List

840 MU 935 MU 938 MU / 941 MU

1940 MU

1835 MU

Accessory kit 7500193

Adapter 7/16 male-N female 7112425 *

Battery pack 7500045 *

Cover 7163657 *

EAC-board (the pcb only) 7163917 Power Supply Unit AC IN 100-240 V 7163240 *

Power Supply Unit DC IN 48 Vdc Is available from february 2007

7513805-00 *

Pole mounting kit back to back 7161605 *

Wall mounting kit 7501210 *

Combiner 3-way 800-960 7164105 --- --- ---

Combiner 3-way 1710-1990 --- --- --- 7164104

Coupler 815-960 3 dB 7164867 7164867 7164891

Final amplifier (MCPA) 7514261-00 --- --- 7518154-

00

Dig. Chan. Ext. Mod. UL/DL 2-band --- 7162607 --- --- 7162612

Dpx UL-active (Mobile) 7162577 7540221-00 7162426 7162564 7500963-

00 EAC-card (pcb with RF cables) 7164754 7541391 7164753 7164754 7541391

Final amplifier (SCPA) --- 7518924-00

7164529 / 7513538-00 --- 7518923-

00 Dig. Chan. Mod. UL/DL 2-band 7162682 7162606 7162613 7162611

Dpx DL-active (BTS) 7162427 7162565 7162569 Please observe that only the components marked * may be replaced on site. If the replacement of any other component in this list is required, please contact customer service for assistance.

The manufacturer reserves the right to replace the parts listed above by equivalent substitutes!


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8.1.2. Node G 1838 MU and 1841 MU

Description Main Unit Parts List

1838 MU 1841 MU

Accessory kit 7500193 Adapter 7/16 male-N female 7112425 * Battery pack 7500045 * Coupler 1710-1990 3 dB 7164891 Cover 7163657 * Dig. Chan. Mod. UL/DL 2-band 7162611 Dpx DL-aktiv (BTS) 7162569 Dpx UL-aktiv (Mobile) 7162568 EAC-card (pcb with RF cables) 7164753

1838 MU 7164528 Final amplifier (SCPA)

1841 MU 7513540-00 Power Supply Unit AC IN 100-240 V 7163240 *

Power Supply Unit DC IN 48 Vdc 7513805-00 *

Pole mounting kit back to back 7161605 * Wall mounting kit 7160068 * Please observe that only the components marked * may be replaced on site. If the replacement of any other component in this list is required, please contact customer service for assistance.


8.1.3. Modems

Node G ID MODEM-KIT MC35 NODE G 7544562

MODEM-KIT MC56 NODE G 7544563

MODEM-KIT MC75 NODE G 7544564

MODEM-KIT TRM2 NODE G 7544565

8 Parts Lists

8.2. EXTENSION UNIT The following lists contain all FRUs that are available for the Node G Extension Unit. The Node G configuration is available in the web interface.

8.2.1. Node G 935R EU, 935 EU, 938 EU, 941 EU, 840 EU and 1940 EU

Description Extension Unit Parts List 935 EU 938 EU

941 EU 1) 840 EU 1940 EU 1835 EU

Cable bridge 7164844 * Power Supply Unit AC IN 100-240 V 7163240 *


Coupler 3 dB 7164867 --- 7164867 7164891 EAC-card (pcb with RF cables) 7542420 7164755 7164756 7542420

Final amplifier 7518924-00 7164529 --- 7518923-

00 Bandpass filter 925-960 35 MHz --- 7162428 ---

Combiner 128 208 800-960 7164018 ---

Combiner 128 208 1710-1990 --- 7164019

Combiner 4-way --- 7164102 7164103 --- Dig. Chan. Ext. Mod. UL/DL 2-band

7162607 7162680 7162614

1) For Node G 941 use the Extension Unit of Node G 938. Please observe that only the components marked * may be replaced on site. If the replacement of any other component in this list is required, please contact customer service for assistance.



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8.2.2. Node G 1838 EU and 1841 EU

Description Extension Unit Parts List 1838 EU 1841 EU 1)

Bandpass filter 925-960 35 MHz 7162567 Cable bridge 7164844 * Dig. Chan. Mod. UL/DL 2-band 7162612 EAC-card (pcb with RF cables) 7164755 Final amplifier 7164528 Power Supply Unit AC IN 100-240 V 7163240 *

Power Supply Unit DC IN 48 Vdc

7513805-00 * Is available from february 2007

1) For Node G 1841 use the Extension Unit of Node G 1838. Please observe that only the components marked * may be replaced on site. If the replacement of any other component in this list is required, please contact customer service for assistance.


9 Node G Frequency Shifting (FS)

9. NODE G FREQUENCY SHIFTING (FS)

9.1. GENERAL The Node G is available with the functionality frequency shifting. The utilization of this feature causes some modifications in the software application. In the following chapters all pages are listed which differ from the Node G without frequency shifting.

9.2. INTRODUCTION TO NODE G FREQUENCY SHIFTING (FS)

9.2.1. Purpose A GSM Cellular communication system provides a two-way information transfer (voice and data) between a BTS (base station) and multiple subscriber units. Environmental variables such as physical structures both man-made (buildings) and natural (mountains) attenuate signals in the transmission path which reduce the transport signal strength. This attenuation leads to a reduction in quality and data rate and eventually prohibits the system’s use entirely. The Node G FS is specifically designed to extend coverage and to enhance quality in a GSM system. In the past, GSM Frequency Shifting’s (G FS) primary function were to ensure high output power on sites where the gain of the repeater was limited by the isolation between the donor and the coverage antenna. This has changed dramatically with the implementation of Node G and its outstanding Interference Cancellation Equipment (ICE). However, frequency shifting still makes sense when omni coverage antennas are required and when a BTS sector needs to be made remote. In order to support also this kind of applications the Node G FS is the ideal complement to the standard Node G. A frequency shifting system consists of two elements: - The Base Transceiver Station (BTS) Unit which is located at the base station and

transmits the signals to the Remote Unit (RU) using a frequency different to the original.

- The Remote Unit, which can be placed at a far distance to the BTS Unit, reconverts the signals to the original frequency and provides coverage for the area.

Both enhancers are capable of filtering and amplifying from 1 to 4 GSM, GPRS, EDGE channels across the entire band.


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9.2.2. The Node G FS Network Element The Node G FS are more than simple enhancers. The units are ideal for the first phase of the network rollout, and for any subsequent phase where cost, coverage, and quality need to be optimized. The Node G FS’s primary function are to increase signal strength between a mobile and a base station in areas where high-quality voice or high-speed data service is not available. These units are excellent choices for remote-a-sector applications or when omni coverage antennas are required. From their power level to their setup, the Node G FSs have intelligence and performance that rival a base station. The Node G FSs are self-diagnosing, self-adaptive, and virtually maintenance free.

Note: Regard that synthesized hopping is not supported by the Node G FSs.


9.3. CONNECTION OF THE ANTENNA CABLES The Node G’s antenna connectors are 7/16 female (optionally equipped with an N female adapter). All connectors are located at the bottom of the cabinet. An operator should refer to the documentation of the cable connector manufacturer for best mating procedures. Furthermore, the bending radius of the antenna cables should be maintained at all times. There are several issues to be considered when selecting the cable and antenna types.

• Highly directional antennas with good front-back-ratios (40 dB is typical) are recommended because they improve isolation and cell site selectivity.

• Smaller diameter cables are less expensive and easier to install but have worse performance.

Tighten the 7/16 or N connectors ONLY by hand. The use of pliers may cause damage to the connector and impair the performance of the Node G.

figure 9-1 Front view of antenna connections from Node G 935 FS-BTS / 1835 FS-

BTS

figure 9-2 Front view of antenna connections from Node G 935 FS-BTS / 1835 FS-

BTS with Rx/Tx separate option


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9.4. WIRELESS MODEM The modem that are used for Node G are also available for Node G FS-BTS and Node G-RU. In case of Node G x35 FS-BTS with Rx/Tx separate option the difference to the Node G is the RF connection to the modem. Since the BTS Tx and Rx are seperated they have to be combined by a double-dualband coupler before a modem can be connected.

figure 9-3 Cable from the modem to the double-dualband coupler

Note: The modems MC56 and MC75 are identically constructed with modem MC35.


9.5. DIGITAL ARCHITECTURE OF NODE G FS-BTU/RU The following figure shows the block diagram of Node G x35/x38 FS-RU, Node G x41 FS-RU and Node G x35 FS-BTS.

figure 9-4 Block diagram Node G x35/x38 FS (Remote Unit)

figure 9-5 Block diagram Node G x41 FS (Remote Unit)


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4

4 To

figure 9-6 Block diagram Node G x35 FS (BTS Unit)


9.6. SPECIFICATIONS OF NODES G FS BASE STATION TRANSCEIVER (BTS) AND REMOTE UNIT (RU)

9.6.1. Identification numbers - Main Unit

Node G FS Type ID No Max. Channel 935 FS-BTS 7544189 4

935 FS-RU 7544190 4

938 FS-RU 7544274 4

941 FS-RU 7544272 2

1835 FS-BTS 7544275 4

1835 FS-RU 7544276 4

1838 FS-RU 7544273 4

1841 FS-RU 7544271 2

9.6.2. Identification numbers - Extension Unit

Node G FS Type ID No Max. Channel 938 EU 7162643 4

1838 EU 7162647 4 FS = Frequency Shifting BTS = Base Station Transceiver RU = Remote Unit


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9.6.3. Main Unit


9.6.3.1. Mechanical Specification Main Unit

Node G FS Type Weight, kg (lb)

Height, Width, Depth, mm (in) Cooling

935 FS-BTS 935 FS-RU 938 FS-RU 941 FS-RU 1835 FS-BTS 1835 FS-RU 1838 FS-RU 1841 FS-RU

28 (61.5) 546 x 320 x 310 (21.5 x 12.6 x 12.2)

Natural convection


9.6.3.2. Environmental Specification Main Unit

Node G FS Type Ingress Protection Temperature Range, °C

935 FS-BTS 935 FS-RU 938 FS-RU 941 FS-RU 1835 FS-BTS 1835 FS-RU 1838 FS-RU 1841 FS-RU

IP 65 -33 to +50



9.6.4. Electrical Specification Node G 935 FS-BTS, 935 FS-RU, 938 FS-RU, 941 FS-RU, 1835 FS-BTS, 1835 FS-RU, 1838 FS-RU, 1841 FS-RU


9xx FS 18xx FS

Uplink 880 to 915 9xx FS Downlink 925 to 960 Uplink 1710 to 1785


18xx FS Downlink 1805 to 1880

Node G FS BTS Unit 2 to 4 maximum Node G x35/x38 FS Remote Unit 4 maximum Channels Node G x41 FS Remote Unit 2 maximum

Node G FS BTS Unit GSM 35.0 @ 2 channels EDGE 31.5 @ 2 channels GSM 31.5 @ 4 channels

Node G FS BTS Unit

EDGE 28.0 @ 4 channels Node G FS Remote Unit

GSM 41.0 @ 2 channels* Node G X41 FS EDGE 39.0 @ 2 channels* GSM 38.0 @ 2 to 4 channels*Node G X38 FS EDGE 36.0 @ 2 to 4 channels*GSM 35.0 @ 2 to 4 channels*

Downlink power, dBm

Node G X35 FS EDGE 31.5 @ 2 to 4 channels*


GSM 1.0 @ 2 to 4 channels Node G FS BTS Unit EDGE -2.5 @ 2 to 4 channelsGSM 31.0 @ 2 to 4 channels

Uplink power, dBm Node G FS Remote Unit

EDGE 27.5 @ 2 to 4 channelsOutput power step size, dB 1 Output power accuracy, dB ±1.5

Node G FS BTS Unit -20 Minimum downlink input power at full output power, dBm Node G FS Remote Unit -60



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9xx FS 18xx FS

Delay, µs 10.0 Node G FS BTS Unit 55

Node G x35 FS Remote Unit 95

Node G x38 FS Remote Unit 98

Maximum gain (automatic setting), dB

Node G x41 FS Remote Unit 101 Node G FS BTS Unit 20 in steps of 1 Gain adjust range, dB Node G FS Remote Unit 40 in steps of 1

Return loss, dB 20 Channel bandwidth, kHz 200

-40 @ 400 kHz -60 @ 600 kHz Channel selectivity, dBc -70 @ 800 kHz


Spurious emissions, dBm -36 Standard 48 Vdc Node G FS

BTS Unit Optional 90-265 Vac/40-60 Hz Standard 90-265 Vac/40-60 Hz

Power supply Node G FS Remote Unit Optional 48 Vdc

Node G FS BTS Unit

170 @ 2 channels 320 @ 4 channels

Node G x35 FS Remote Unit 220 @ 2 channels Power consumption, Watts

Node G x38/x41 FS Remote Unit 320 @ 4 channels

Standard 7/16 DIN female RF connectors

Optional N female



9.6.5. Extension Unit


9.6.5.1. Mechanical Specification Extension Unit

Node G Type Weight, kg (lb)

Height, Width, Depth, mm (in)

Cooling

938 FS-RU EU 28 (61.5) 1838 FS-RU EU 28 (61.5)

546 x 320 x 310 (21.5 x 12.6 x 12.2)

Natural convection


9.6.5.2. Environmental Specification Extension Unit

Node G Type Ingress Protection

Temperature Range;°C

938 EU 1838 EU

IP 65 -33 to +50



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9.6.6. Battery Pack

Battery Pack Battery type NiCd Battery capacity 600 mAh Nominal output voltage 12 Vdc Backup time 5 - 8 minutes Charge time 4.5 hours

Major features Battery charge, HID,

battery voltage measurement trickle-charge mode


9.6.7. Modems

Modem Service GSM GPRS

Service connection Circuit switched Packet switched

Physical connection RS232; USB; (only for separate use)

Power consumption 4 W average, 10 W peak Connectors Data, power, RF


For your notes:


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9.7. PARTS LISTS NODE G FS

9.7.1. Main Unit The following lists contain all FRUs that are available for the Node G Main Unit. The Node G configuration is available in the web interface.

9.7.1.1. Node G 935 FS-BTS, 935 FS-RU, 938 FS-RU, 941 FS-RU Node G FS Type Description Main Unit - Parts List 935 FS-RU 935 FS-BTS 938 FS-RU

941 FS-RU Accessory kit 7500193



Cover 7163657 *

EAC-board (the pcb only) 7163917

Power Supply Unit AC IN 100-240 V 7163240 * Power Supply Unit DC IN 48 Vdc Is available from february 2007 7513805-00 *

Pole mounting kit back to back 7161605 *

Wall mounting kit 7501210 *

Coupler 815-960 3 dB 7164867 71464867 7164867

Dig. Chan. Ext. Mod. UL/DL 2-band 7162607 7162612 ---

Dpx UL-active (Mobile) 7540221-00 7162426 7162426

EAC-card (pcb with RF cables) 7541391 7164753

Final amplifier (SCPA) 7518924-00 --- 7164529 / 7513538-00

Dig. Chan. Mod. UL/DL 2-band 7162606 7162611 7162606

Dpx DL-active (BTS) 7162427 7162569 7162427 Please observe that only the components marked * may be replaced on site. If the replacement of any other component in this list is required, please contact customer service for assistance.



9.7.1.2. Node G 1835 FS-BTS, 1835 FS-RU, 1838 FS-RU, 1841 FS-RU Node G FS Type Description Main Unit - Parts List

1835 FS-RU

1835 FS-BTS

1838 FS-RU

1841 FS-RU

Accessory kit 7500193



Cover 7163657 *

EAC-board (the pcb only) 7163917 Power Supply Unit AC IN 100-240 V 7163240 *

Power Supply Unit DC IN 48 Vdc Is available from february 2007

7513805-00 *

Pole mounting kit back to back 7161605 * 7161605 *

Wall mounting kit 7501210 * 7160068 *

Coupler 1710-1990 3 dB 7164891

Final amplifier (SCPA) --- 7164528 7513540-00

Dig. Chan. Ext. Mod. UL/DL 2-band 7162612 7162611

Dpx UL-active (Mobile) 7500963-00 7162568

EAC-card (pcb with RF cables) 7541391 7164753

Final amplifier (SCPA) 7518923-00 ---

Dig. Chan. Mod. UL/DL 2-band 7162611

Dpx DL-active (BTS) 7162569 7162569 Please observe that only the components marked * may be replaced on site. If the replacement of any other component in this list is required, please contact customer service for assistance.



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9.7.2. Node G 938 EU and 1835 EU The following lists contain all FRUs that are available for the Node G Extension Unit.

Description Extension Unit Parts List 938 EU 1838 EU

Cable bridge 7164844 * Power Supply Unit AC IN 100-240 V 7163240 *


EAC-card (pcb with RF cables) 7164755 7164755 Final amplifier 7164529 7164528 Bandpass filter 925-960 35 MHz 7162428 7162567 Combiner 128 208 800-960 7164018

Combiner 128 208 1710-1990 ---

Combiner 4-way --- Dig. Chan. Ext. Mod. UL/DL 2-band 7162607 7162612

Please observe that only the components marked * may be replaced on site. If the replacement of any other component in this list is required, please contact customer service for assistance.


9.7.3. Modems

Node G FS ID Modem Kit MC35 Node G FS 7559943 Modem-Kit MC56 Node G 7544563 Modem Kit MC75 Node G FS 7559945

10 Index

10. INDEX

A Abbreviations.......................................................... 9 About Andrew Wireless Systems.......................... 12 AC Breaker

Mains Power .................................................... 26 Address of Andrew Wireless Systems GmbH....... 12 AFA ...................................................................... 36 AFA+ .................................................................... 36 Alarm Forwarding ................................................. 37 Alarm LEDs

Description....................................................... 51 Alarms

External............................................................ 52 Amplifier

Feed-Forward .................................................. 40

B Battery Disconnect Button .................................... 48 Battery On/Off....................................................... 48 Battery Pack ......................................................... 47

C Cabinet Drawing

Node G ............................................................ 69 Communication Mode Parameters ....................... 43 Connection from Laptop or PC ............................. 46 Connections

Antenna ..................................................... 27, 91 Power .............................................................. 26

Contact Addresses ............................................... 13 Cover.................................................................... 55

D DCM Module......................................................... 45 Digital ICE ............................................................ 35 Drawer.................................................................. 55 Duplexer ............................................................... 49

E EAC-card.............................................................. 50 External Alarm Controller ..................................... 50 External Alarms .................................................... 52

F Feed-Forward Amplifier ........................................ 40 Filter Options ........................................................ 36 Filters

Standard Feature............................................. 35 Frequency Hopping .............................................. 35

G Gain...................................................................... 37 Grounding............................................................. 25

H Health and Safety Warnings................................. 11 HSN...................................................................... 35

I Installation

Electrical .......................................................... 24 Mechanical ...................................................... 19

Isolation ................................................................ 37

L Lanyard ................................................................ 56 Layout

Components .................................................... 39 Node G 930 ..................................................... 70

LED Kit ................................................................. 59 LNA ...................................................................... 49 Low-Noise Amplifier.............................................. 49

M Mains Power

AC Breaker ...................................................... 26 Mains Power Switch ............................................. 30 MAIO .................................................................... 35 Modem

General............................................................ 43 Initstrings ......................................................... 43 MC35 ..........................................................44, 92 MC56 ..........................................................44, 92 MC75 ..........................................................44, 92 Replacement ................................................... 57 Wireless........................................................... 44

Modem Output Node G FS....................................................... 92

Mounting Brackets........................................................... 23 General............................................................ 19 M10 Hexagon Head Screws .......................21, 23 Pole ................................................................. 22 Wall.................................................................. 20

O Opening

Cabinet ............................................................ 29 M5 Socket Head Cap Screws.......................... 29

Output Levels ....................................................... 37

P Parts List

Extension Unit ..........................................87, 104 Main Unit ..................................................85, 102 Modem-Kit Node G.......................................... 86 Modem-Kit Node G FS .................................. 104

Power Supply Unit ................................................ 42


Network Elements

M0121A2D.doc

R Relay contacts ...................................................... 54 Replacement of

Battery Pack .................................................... 58 Components .................................................... 55 Modem............................................................. 57 Power Supply................................................... 57

RF Path ................................................................ 34 RSSI ..................................................................... 37

S SMS Alarm Forwarding ........................................ 37 Specifications

Battery Pack ............................................ 83, 100 Modems................................................... 83, 100

Specifications Extension Unit Environmental............................................ 82, 99 Mechanical................................................. 82, 99

Specifications Main Unit

Electrical .......................................................... 80 Electrical .....................................................75, 78 Electrical .......................................................... 97 Environmental.............................................74, 96 Mechanical .................................................74, 96

Status Information ................................................ 37 Summary alarm

Pin assignment ................................................ 54 Summary Alarm.................................................... 54

T Trickle-Charge Mode............................................ 51

U UL Squelch........................................................... 36

V VSWR................................................................... 37

11. LIST OF CHANGES

Version Changes Release Date M0121A2C 21-December-2006

M0121A2D

- chapter 3.2.2 Grounding updated - chapter 4.3.7.2 External Alarms updated - chapter 7.3.5 Electrical Specification Node

G 840 and 1940 updated - chapter 9 Node G Frequency Shifting (FS)

added

07-September-2007

M0121A2D.pdf

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