Repeaters Node M and Node C Network Elements User's Manual M0121A4A
User’s Manual for Node M and Node C Network Elements © Copyright 2010 CommScope, Inc. All rights reserved. Andrew Solutions is a trademark of CommScope, Inc. All information contained in this manual has been revised thoroughly. Yet Andrew Solutions accepts no liability for any omissions or faults. Andrew Solutions reserves the right to change all hard- and software characteristics without notice.
TABLE OF CONTENTS 1. GENERAL 7 1.1. USED ABBREVIATIONS 7 1.2. HEALTH AND SAFETY WARNINGS 9 1.3. ABOUT ANDREW SOLUTIONS 11 1.4. INTERNATIONAL CONTACT ADDRESSES FOR WIG CUSTOMER SUPPORT 12 2. INTRODUCTION 15 2.1. PURPOSE 15 2.2. THE NODE M AND NODE C (NODE M/C) NETWORK ELEMENT 15 2.3. QUICK START CHECKLIST 16 3. CONNECTION SETUP 19 3.1. 19 SETTING UP A LOCAL / LAN CONNECTION FROM LAPTOP / PC 3.2. SETTING UP NODE M/C REPEATER TO RUN AS A LAN ELEMENT 3.2.1. Prerequisites 3.2.2.
User’s Manual for Node M and Node C Network Elements 5. FUNCTIONAL DESCRIPTION 37 5.1. 37 DIGITAL ARCHITECTURE 5.2. FEATURES 5.2.1. Filters Node M 5.2.2. Filters Node C 5.2.3. Digital ICE (Digital Interference Cancellation Equipment) 5.2.4. VSWR (Voltage Standing Wave Ratio) 5.2.5. RSSI (Receive Signal Strength Indication) 5.2.6. Alarm Forwarding 5.2.7. Downlink Final Amplifier 5.2.8. Power Supply Unit 5.2.9. Modems 5.2.10. Digital Channel Module (DCM) 5.2.11. External Alarm Controller - EAC-Board 5.
FIGURES AND TABLES figure 3-1 Ethernet connector RJ45 figure 3-2 Pin connection figure 3-3 Cable gland position figure 4-1 Positions of drilling holes figure 4-2 Wall mounting procedure figure 4-3 Pole mounted units figure 4-4 Back-to-back pole mounting figure 4-5 Grounding bolt figure 4-6 Power supply plug figure 4-7 Mains connector of a Node M, exemplary figure 4-8 Mains connector and antenna connections of a Node C, exemplary figure 4-9 Front view of antenna connections from Node C, exemplary figure 4-10
User’s Manual for Node M and Node C Network Elements figure 5-20 External alarm clamps, installed figure 5-21 Configuration of external alarm clamps figure 5-22 External cable glands figure 5-23 Summary alarm relay figure 5-24 Relay contacts, alarm condition figure 5-25 Battery pack, exemplary figure 5-26 Battery pack installed and its connection to DCM figure 5-27 Position of the battery disconnect button on the EAC-board figure 5-28 Duplexer, UL IN figure 5-29 Duplexer, DL IN figure 5-30 Duplexers install
1 General 1. GENERAL 1.1.
User’s Manual for Node M and Node C Network Elements RLP RSCP RSSI RTC RX SCPA SDA SMS SNMP TS UE UL UMTS UPS UTC UTRA VCO VSWR WCDMA Page 8 Radio Link Protocol Received Signal Code Power Receive Signal Strength Indication Real Time Clock Receiver Single Carrier Power Amplifier Serial Data Short Message Service Simple Network Management Protocol Transmitter User Equipment Uplink Universal Mobile Telecommunication System Uninterruptible Power Supply Universal Time Coordinate UMTS terrestrial radio access V
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.
User’s Manual for Node M and Node C Network Elements 13. This unit complies with European standard EN60950. 14. Make sure the network element settings are according to the intended use (see also product information of manufacturer) and regulatory requirements are met. 15. 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.
1 General 1.3. ABOUT ANDREW SOLUTIONS Andrew Wireless Systems GmbH based in Buchdorf/ Germany, 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 GmbH belongs to the Wireless Innovations Group (WIG).
User’s Manual for Node M and Node C Network Elements 1.4. INTERNATIONAL SUPPORT CONTACT ADDRESSES FOR WIG CUSTOMER Wireless Innovations Group (WIG) Americas: Canada United States Andrew Solutions Canada Andrew Solutions, Andrew LLC, A CommScope Company Mail 620 North Greenfield Parkway Garner, NC 27529 U.S.A. Mail 620 North Greenfield Parkway Garner, NC 27529 U.S.A.
1 General Europe: United Kingdom France Andrew Solutions UK Ltd Andrew Solutions France Mail Unit 15, Ilex House Mulberry Business Park Fishponds Road Wokingham Berkshire RG41 2GY England Mail 28, Rue Fresnel Z.A Pariwest BP 182 78313 Coignières Cedex France Phone +44-1189-366-792 Phone +33 1 30 05 45 50 Fax +44-1189-366-773 Fax +33 1 34 61 13 74 E-mail WIsupport.uk@andrew.com E-mail WIsupport@andrew.
User’s Manual for Node M and Node C Network Elements For your notes: Page 14 M0121A4A.
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.
User’s Manual for Node M and Node C Network Elements 2.3. QUICK START CHECKLIST Read the health and safety warnings in chapter 1.2 Health and Safety Warnings. Setting up the Node M/C is quick and easy. The following step-by-step procedure provides a quick overview for a correct setup and optimization. a.
2 Introduction 7. Login to the unit and follow the installation wizard option for easy installation. a. Optimize the donor antenna performance (see software manual). b. To select the channels for enhancement, choose between the “Measurement Assisted Channel Assignment” or “Unassisted Channel Assignment” from the Setup Wizard page (see software manual). c. Enter the pilot power to total power ratio of the donor Base Station. d. Enter the desired output power in the downlink. e.
User’s Manual for Node M and Node C Network Elements For your notes: Page 18 M0121A4A.
3 Connection Setup 3. CONNECTION SETUP 3.1. SETTING UP A LOCAL / LAN CONNECTION FROM LAPTOP / PC 1 2 figure 3-1 Ethernet connector RJ45 Ethernet connector - LEDs After the connection is made properly, the red and green LEDs near the Node C network connector will flash. No 1 2 Colour Explanation LED illuminates when a packet is transmitted by the DCM2 DL Yellow module. Green LED illuminates when a packet is received by the DCM2 DL module.
User’s Manual for Node M and Node C Network Elements 3.2. SETTING UP NODE M/C REPEATER TO RUN AS A LAN ELEMENT 3.2.1. Prerequisites Use the Local Area Network (LAN) mode to activate DHCP clients or to assign a static IP address to the Node M/C. ) Note: Before it is possible to configure the LAN settings alarm connectors 7 and 8 must be connected in order to activate External Alarm 1, figure 3-2 Pin connection.
3 Connection Setup 4. Crimp the RJ45 connector and connect it to the RJ45 jack of the EAC board. This is the same connector as for a local connection. See figure 3-1 Ethernet connector RJ45 on page 19). 5. Fasten the cable glands properly to ensure waterproofness. 6. Configure Main connectivity on the Connectivity page to be LAN so that the LAN section on the Connectivity page will be activated (for details see software manual, chapter LAN Information). 7.
User’s Manual for Node M and Node C Network Elements For your notes: Page 22 M0121A4A.
4 Installation 4. INSTALLATION 4.1. MECHANICAL INSTALLATION 4.1.1. General Read the health and safety warnings in chapter 1.2 Health and Safety Warnings. 1. Do not install the unit in a way or at a place where the specifications outlined in the Environmental and Safety Specifications leaflet of the manufacturer are not met. 2. It is recommended only to use the mounting hardware delivered by the manufacturer.
User’s Manual for Node M and Node C Network Elements 4.1.2. Wall Mounting Procedure Check the wall mounting kit and the wall to determine their suitability. Mark the position of the drilling holes - four per unit - for the Node according to figure 4-1. Please observe that the figure always shows a pair of drill holes for each position. Only drill one of each pair.
4 Installation 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.
User’s Manual for Node M and Node C Network Elements 4.1.3. Pole Mounting Procedure The following figure illustrates the pole mounting option back-to-back. V1498A0 figure 4-3 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 4-2 Components of pole mounting kit, pos.
4 Installation The pole mounting kit 'back-to-back' consists of the following parts in different quantities: No 1 2 3 4 5 6 Part Pole mounting brace Washer DIN 9021 – 8.4 Nut M8 DIN 934 Spring ring DIN 127 – A8 Thread-bolt M8 Washer M8 DIN 125 table 4-2 Components of pole mounting kit The numbers in the above table refer to the numbering of the components in the following figure.
User’s Manual for Node M and Node C Network Elements For your notes: Page 28 M0121A4A.
4 Installation 4.2. ELECTRICAL INSTALLATION 4.2.1. General Read the health and safety warnings in chapter 1.2 Health and Safety Warnings. 1. This unit contains dangerous voltages. Loss of life, severe personal injury or property damage can be the result if the instructions contained in this manual are not followed. 2. It is compulsory to ground the unit before connecting power supply. A grounding bolt is provided on the cabinet to connect the ground bonding cable. 3.
User’s Manual for Node M and Node C Network Elements 4.2.2. 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 4-5 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.
4 Installation 4.2.3. 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 M/C.
User’s Manual for Node M and Node C Network Elements PIN 1 2 3 4 Mains AC Connection Colour Phase brown Neutral blue not connected PE green / yellow Mains DC Connection Colour not connected -Vdc* black +Vdc* red PE green / yellow table 4-3 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.
4 Installation 4.2.4. Connection of the Antenna Cables The Node M/C’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.
User’s Manual for Node M and Node C Network Elements 4.2.5. 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 M/C without terminating the antenna connectors. The antenna connectors may be terminated by connecting them to their respective antennas or to a dummy load.
4 Installation ) Note: Before closing the unit, make sure that the mains power switch inside is set to ON.
User’s Manual for Node M and Node C Network Elements For your notes: Page 36 M0121A4A.
5 Functional Description 5. FUNCTIONAL DESCRIPTION 5.1. DIGITAL ARCHITECTURE The following figure shows the RF block diagram of the Node M/C. figure 5-1 Configuration of a network element The Node M/C is designed to amplify signals between multiple mobiles and a base station in a UMTS/CDMA system. The unit consists of a filter and amplifier chain in the downlink and one or two filters and amplifier chains in the uplink (primary and diversity).
User’s Manual for Node M and Node C Network Elements In the primary uplink path, a signal originating from the mobile is separated from the downlink signal via the primary UL IN duplexer. It is then amplified by an integrated low noise amplifier (LNA) and forwarded to the uplink digital channel module (DCM). The DCM down-converts the signal to base-band, digitally filters it, amplifies it and then up-converts it. In addition the interference cancellation technology is implemented in the DCM.
5 Functional Description 5.2. FEATURES 5.2.1. Filters Node M 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 software. UMTS - Possible filters are: 5 One UMTS channel 5 MHz One UMTS channel 5.2.2. Filters Node C Filters are set automatically according to the channels set in “Setup Wizard” or “Technician Setup”.
User’s Manual for Node M and Node C Network Elements 5.2.3. Digital ICE (Digital Interference Cancellation Equipment) Digital ICE has been developed to enhance antenna isolation. This feature enables the Node M/C 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.
5 Functional Description 5.2.5. RSSI (Receive Signal Strength Indication) The RSSI provides controlling and monitoring of the receive level of a base station (DL RSSI) or user equipment (UL RSSI) to a Node M/C. 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. An alarm will be released if the measured signal level exceeds the alarm level set by the provider via software.
User’s Manual for Node M and Node C Network Elements 5.2.7. Downlink Final Amplifier For the Node M/C x37 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 5-3 Node M/C x37 MCPA DL final amplifier For the Node M/C x43 an MCPA (multi carrier power amplifier) with more output power is used. This is an error-correcting feed-forward amplifier.
5 Functional Description figure 5-5 Node M/C 843 DL final amplifier Page 43
User’s Manual for Node M and Node C Network Elements 5.2.8. Power Supply Unit The power supply unit is mounted in the door of the Node. This device transforms mains power into a predefined DC voltage. When performing maintenance, ensure that all circuits are voltage-free and that the Node M/C is disconnected from mains. figure 5-6 Power supply, Node M/C x37 figure 5-7 Power supply, Node M/C x43 Page 44 M0121A4A.
5 Functional Description 5.2.9. Modems The modem is used to establish a remote connection to the Node M/C. The connection may be used to change the parameters of the unit, check and clear alarms or collect measurement and quality statistics. Furthermore, the modem is at the Node M/Cs 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.
User’s Manual for Node M and Node C Network Elements figure 5-10 Modem AnyDATA iPORT EMIII Dual / EM IV Dual figure 5-11 Modem Raven XT Page 46 figure 5-12 Modem MTCBA-C-N9 M0121A4A.
5 Functional Description 5.2.9.2. Modem Output The modem output is connected to the 20 dB modem coupler port of the DL IN duplexer or to the N-female connector near to the BTS port to connect an external antenna.
User’s Manual for Node M and Node C Network Elements 5.2.10. Digital Channel Module (DCM) 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.
5 Functional Description 5.2.11. External Alarm Controller - EAC-Board 5.2.11.1. Connectors on the EAC-Board - Description The EAC circuit board is used for general purpose housekeeping functions of the Node. The EAC circuit board is the main connection point for the user. It has the external alarm clamps, the connectors for local or modem connection, as well as a summary alarm relay. The following figure shows an installed EAC-board.
User’s Manual for Node M and Node C Network Elements Connectors on the EAC-board No 1, 2 1 21 3 41 5 6 71 81 9 10 11 1 2 Explanation USB connector for modem Ethernet connector RJ45 for local and LAN web access Internal DCM (DL) - DCM (UL) interface connection Internal PSTN connector Internal I2C (not used) Battery disconnect button External alarms, summary alarm LED & PSTN, see chapter 5.2.11.3 External Alarms Summary alarm terminal; for pin assignment see chapter 5.2.11.
5 Functional Description 5.2.11.2. LEDs - Description Seven LEDs are included on the EAC-board. They are controlled via the I2C bus. 3 1 4 5 6 2 7 figure 5-18 Function of LEDs on the EAC-board Colours and illumination functions No Colour Explanation 1 Yellow Ethernet connector LEDs, see chapter 3.1 Setting up a Local / LAN 2 Green Connection from Laptop / PC DL PWR - illuminates when the DL Power is "Good" and the DL is 3 Green NOT in battery backup.
User’s Manual for Node M and Node C Network Elements 5.2.11.3. External Alarms The external alarms are used to monitor the status of one or more external devices via the Node M/C. A UPS or entry alarm is among the items that might be connected to the contact relay and monitored via the Node M/C. The cage clamp connectors are located on the EAC-board. 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).
5 Functional Description figure 5-21 Configuration of external alarm clamps 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.
User’s Manual for Node M and Node C Network Elements 5.2.11.4. 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 5-23 Summary alarm relay The following table indicates the three-connector pin out.
5 Functional Description 5.2.12. 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 M/C 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.
User’s Manual for Node M and Node C Network Elements Battery On/Off A pushbutton on the EAC-board 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 +28V supply is again operational. Battery disconnect button figure 5-27 Position of the battery disconnect button on the EAC-board Page 56 M0121A4A.
5 Functional Description 5.2.13. 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 (UMTS/CDMA). This allows the same Node M/C 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.
User’s Manual for Node M and Node C Network Elements Ceramic duplexer DL IN figure 5-31 Duplexers installed, ceramic duplexer DL IN Page 58 M0121A4A.
6 Maintenance and Replacement 6. MAINTENANCE AND REPLACEMENT Read the health and safety warnings in chapter 1.2 Health and Safety Warnings. ) Note: Node M and Node C do not require any preventative maintenance measures. ) Note: In case of a defect replace the entire repeater. When sending back the unit, use an appropriate packaging. We strongly recommend using the original packaging! 7. ILLUSTRATIONS 7.1.
User’s Manual for Node M and Node C Network Elements 7.2. LAYOUT OF THE NODE M/C 843 The following figure is exemplifying the layout of a Node M/C 843. figure 7-2 Layout of the Node M/C 843, exemplary Page 60 M0121A4A.
8 Index 8.
