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Andrew Node C837 User Manual

Node c series prototype network elements with interface unit
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User's Manual
for
Node C Prototype
Network Elements
with Interface Unit
ID No: 161692
PRELIMINARY
Page 1

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Summary of Contents for Andrew Node C837

  • Page 1 User’s Manual Node C Prototype Network Elements with Interface Unit ID No: 161692 PRELIMINARY Page 1...
  • Page 2 All information contained in this manual has been revised thoroughly. Yet Mikom An Andrew Company accepts no liability for any omissions or faults. Mikom An Andrew Company 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.
  • Page 3 TABLE OF CONTENTS GENERAL ABBREVIATIONS HEALTH AND SAFETY WARNINGS PREAMBLE INTERNATIONAL CONTACT ADDRESSES INTRODUCTION PURPOSE THE NODE C NETWORK ELEMENT QUICK START CHECKLIST INSTALLATION MECHANICAL INSTALLATION 3.1.1 General 3.1.2 Wall Mounting Procedure 3.1.3 Connection Option 3.1.4 Pole Mounting Procedures ELECTRICAL INSTALLATION 3.2.1 General 3.2.2...
  • Page 4 User’s Manual for Node C Network Elements FUNCTIONAL DESCRIPTION GENERAL FEATURES OF THE NODE C 5.2.1 Filters 5.2.2 Digital ICE (Digital Interference Cancellation Equipment) 5.2.3 VSWR (Voltage Standing Wave Ratio) 5.2.4 RSSI (Receive Signal Strength Indication) 5.2.5 Alarmforwarding 5.2.6 External Alarms 5.2.7 Summary Alarm COMPONENTS OF THE NODE C AND INTERFACE UNIT...
  • Page 5 FIGURES AND TABLES figure 3-1 Positions of drilling holes ................14 figure 3-2 Wall mounting procedure................15 figure 3-3 Connection option..................16 figure 3-4 Cabinet combining kit ................16 figure 3-5 Pole mounted systems ................17 figure 3-6 Back-to-back pole mounting ..............18 figure 3-7 Pole mounting two systems..............
  • Page 6 User’s Manual for Node C Network Elements table 1-1 List of international contact addresses............10 table 3-1 Mounting distance..................14 table 3-2 Required length of thread-bolts and cable bridge ........17 table 3-3 Components of pole mounting kits............. 18 table 4-1 Assisted antenna tuning ................62 table 5-1 Connections of RF / DC distribution unit............

  • Page 7: General

    1 General 1 GENERAL 1.1 ABBREVIATIONS Analogue to Digital Converter Automatic Level Control ARFCN Absolute Radio Frequency Channel Number BITE Built In Test Equipment Base Transceiver Station CDMA Code Division Multiple Access Center Frequency Center Frequency Offset Digital to Analogue Converter D-ICE Digital Interference Cancellation Digital Channel Module...

  • Page 8: Health And Safety Warnings

    User’s Manual for Node C Network Elements 1.2 HEALTH AND SAFETY WARNINGS 1. Only suitably qualified personnel is allowed to work on this unit and only after becoming familiar with all safety notices, installation, operation and maintenance procedures contained in this manual. 2.

  • Page 9: Preamble

    1 General 1.3 PREAMBLE Mikom An Andrew Company is a leading manufacturer of coverage equipment for mobile radio networks, specializing in low cost, high performance, RF and optical repeaters. Our optical distributed networks and RF repeater systems provide coverage for every application: outdoor use, indoor installations, tunnels, subways and many more.

  • Page 10: International Contact Addresses

    Phone: +33 (1)30-79-15-36 Phone: +1 (919) 771-2570 Fax: +61 (2) 9774-4500 Fax: +33 (1) 30-55-55-37 Fax: + 1 (919) 771- email: email: email: WIsupport.australia@andrew.com WIsupport.france@andrew.com WIsupport.us@andrew.com in the UK in China in Canada Guildgate House Ground Floor, Unit F, Tower 2...

  • Page 11: Introduction

    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.

  • Page 12: Quick Start Checklist

    User’s Manual for 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 C is quick and easy. The following step-by-step procedure provides a quick overview for a correct setup and optimization. a.

  • Page 13: Installation

    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.

  • Page 14: Wall Mounting Procedure

    User’s Manual for Node C Network Elements 3.1.2 Wall Mounting Procedure • Check the wall mounting kit and the wall to determine their suitability. • The maximum distance between the Node C and the Interface Unit depends on the length of the cable bridge by which they will be connected (see table 3-1 Mounting distance).

  • Page 15: Figure 3-2 Wall Mounting Procedure

    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 eight 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).

  • Page 16: Connection Option

    User’s Manual for Node C Network Elements 3.1.3 Connection Option • In order to mount the system using the cabinet combining kit, dismount the mounting brackets from the cabinets of the units by loosening the hexagon head screws M10x20 by which the brackets are screwed to the housing (four per unit). Do not unscrew those screws, only loosen them by approx.

  • Page 17: Pole Mounting Procedures

    3 Installation 3.1.4 Pole Mounting Procedures The following figure illustrates the two pole mounting options: back-to-back (left) and two systems (right). figure 3-5 Pole mounted systems • Before starting the mounting procedure, check the pole diameter of the pole to which the units will be installed;...

  • Page 18: Figure 3-6 Back-To-Back Pole Mounting

    User’s Manual for Node C Network Elements Both types of pole mounting kit consist of the following parts (in different quantities): Part Part Pole mounting brace Thread-bolt M8 Washer DIN 9021 – 8.4 Washer M8 DIN 125 Nut M8 DIN 934 Hexagon head screw M8 Spring ring DIN 127 –...

  • Page 19: Figure 3-7 Pole Mounting Two Systems

    3 Installation • In case of two systems (figure 3-7) first mount the mounting brackets of the Node C units; then adjust and mount the fasteners (no. 8) accordingly before fastening the mounting brackets of the Interface Units to the fasteners. •...

  • Page 20: Electrical Installation

    User’s Manual for Node C Network Elements 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.

  • Page 21: Grounding

    3 Installation 3.2.2 Grounding Grounding the Node C and Interface Unit is mandatory. Connect an earth bonding cable to the grounding connections provided at the cabinets of both the Node C and Interface Unit according to the following illustrations. Do not use the grounding connections to connect external devices. Cable bridge connectors Node C cabinet Cabinet of...

  • Page 22: Power Connection

    User’s Manual for Node C Network Elements 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 of the Interface Unit. The power supply plug is included with the Node C.

  • Page 23: Connection Of The Antenna Cables

    3 Installation 3.2.4 Connection of the Antenna Cables The Node C’s antenna connectors are 7/16 female (N female is an option). All connectors are located at the bottom of the cabinet. An operator should refer to the cable connectors manufacturer’s documentation for best mating procedures. Furthermore, the bending radius of the antenna cables should be maintained at all times.

  • Page 24: Connections For Optional Equipment

    User’s Manual for Node C Network Elements The cable bridge connectors are located at the bottom of the Node C and Interface Unit. Cable bridge connector Antenna connnectors figure 3-13 Connector panel of the Node C Antenna connector for modem (operating in different network)

  • Page 25: Commissioning

    4 Commissioning 4 COMMISSIONING 4.1 GENERAL 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 C without terminating the antenna connectors. The antenna connectors may be terminated by connecting them to their respective antennas or to a dummy load.

  • Page 26: Software Setup

    User’s Manual for Node C Network Elements 4.2 SOFTWARE SETUP 4.2.1 Remote Control For remote control and/or supervision of the Node C the following services are provided: • An OMC-type software platform (see separate manual) • SMS alarm-forwarding (for details see chapter 5.2.5 Alarmforwarding) •...

  • Page 27: Installing The Usb Driver

    4 Commissioning 4.2.3.2 Installing the USB driver The USB adapter and the driver CD are located inside the Interface Unit: Driver CD USB adapter with USB cable Position of optional modem RS232 connector for USB or null modem cable connection figure 4-3 USB and null modem cable connection When the USB adapter is connected to a PC for the first time, the USB driver must be installed.

  • Page 28: Direct Connection For Windows Xp

    User’s Manual for Node C Network Elements 4.2.3.3 Direct connection for Windows XP a) Setting up the device for the direct connection 1. To start the Phone and Modem Options, choose Start→Control Panel→Phone and Modem Options. 2. Select the Modems tab and click the Add... button. 3.
  • Page 29 4 Commissioning 4. For a direct connection choose the Communication cable between two computers as device. Click Next. 5. Select your port (usually COM1 for a direct connection), continue with Next, and in the next window click Finish. ID No: 161692 PRELIMINARY Page 29...
  • Page 30 User’s Manual for Node C Network Elements b) Setting up a direct connection 1. Choose Start→Control Panel→Network Connections→New Connection Wizard. 2. The first page is the Welcome window: Continue with Next. 3. In the Network Connection Type window, select Set up an advanced connection.
  • Page 31 4 Commissioning 4. In the Advanced Connection Options, choose Connect directly to another computer. Click Next. 5. In the next window choose Guest. Click Next. 6. Next, enter a name for the new connection. ID No: 161692 PRELIMINARY Page 31...
  • Page 32 User’s Manual for Node C Network Elements 7. The next window is Select a Device. This window will provide a drop-down list of known communication ports (devices) to choose from. Choose a serial port. If the RS232 is used, this port is most likely (COM1).
  • Page 33 4 Commissioning In the Connection window, enter User name and Password. Select to Save user name and password ... for Me only. Enter: User name: <username> Password: <password> Click Properties. 10. Under the General tab ensure the correct device is selected. Click Configure, and in the Modem Configuration window, choose 57600 for Maximum speed.
  • Page 34 User’s Manual for Node C Network Elements 12. Select the Security tab, select Advanced (custom settings), and click Settings. 13. Only allow Challenge Handshake Authentication Protocol (CHAP) Microsoft CHAP (MS-CHAP) and Microsoft CHAP Version 2 (MS-CHAP v2) protocols. Click OK. 14.
  • Page 35 4 Commissioning 15. Select the Networking tab and click the Settings button. There are 3 PPP settings. Make sure they are all OFF and click OK. 16. In the Networking window, highlight the Internet Protocol (TCP/IP) component and click the Properties tab. 17.
  • Page 36 User’s Manual for Node C Network Elements 18. In the General tab, uncheck all boxes. In the DNS tab, make sure Append primary and Append parent and Register this connection are checked. In the WINS tab, make sure Enable LMHOSTS lookup is checked. Click OK. 19.
  • Page 37 4 Commissioning c) Establishing the connection 1. Choose Start→Control Panel→Network Connections→<connection name> (i.e. in this example “DCM_Local”). The properties of this connection should already have been setup. 2. Enter <username> in the User name field. Enter <password> in the Password field. Select to Save this user name and password ...

  • Page 38: Modem Connection For Windows Xp

    User’s Manual for Node C Network Elements 4.2.3.4 Modem connection for Windows XP a) Setting up the device for the modem connection 1. To start the Phone and Modem Options, choose Start→Control Panel→Phone and Modem Options. 6. Select the Modems tab and click the Add... button. 7.
  • Page 39 4 Commissioning 8. For a modem connection, choose the Standard 19200 bps Modem as device. Click Next. 9. Select your port (usually COM2 for a modem connection), continue with Next, and in the next window click Finish. ID No: 161692 PRELIMINARY Page 39...
  • Page 40 User’s Manual for Node C Network Elements b) Setting up a modem connection 10. To start, choose Start→Control Panel→Network Connections→New Connection Wizard. 11. The first window is the Welcome window: Continue with Next. 12. In the Network Connection Type window, select Connect to the network at my workplace.
  • Page 41 4 Commissioning 13. In the Network Connection window, choose Dial-up connection. Click Next. 14. Select the Standard 19200 bps Modem as device. Click Next. 15. Next, enter a name for the new connection. ID No: 161692 PRELIMINARY Page 41...
  • Page 42 User’s Manual for Node C Network Elements 16. In the next window enter the phone number of the modem that is installed in the Node C. Click Next. 17. The next window is Connection Availability. Choose My use only. Click Next. 18.
  • Page 43 4 Commissioning 19. In the Connection window, enter username and password. Select to Save user name and password ... for Me only. Enter: User name: <username> Password: <password> Click Properties. 20. Under the General tab ensure the correct device is selected. Click Configure, and in the Modem Configuration window, choose 19200 for Maximum speed.
  • Page 44 User’s Manual for Node C Network Elements 22. Select the Security tab, select Advanced (custom settings), and click Settings. 23. Only allow Challenge Handshake Authentication Protocol (CHAP) Microsoft CHAP (MS-CHAP) and Microsoft CHAP Version 2 (MS-CHAP v2) protocols. Click OK. 24.
  • Page 45 4 Commissioning 25. Select the Networking tab and click the Settings button. There are 3 PPP settings. Make sure they are all OFF and click OK. 26. In the Networking window, highlight the Internet Protocol (TCP/IP) component and click the Properties tab. 27.
  • Page 46 User’s Manual for Node C Network Elements 28. In the General tab, uncheck all boxes. In the DNS tab, make sure Append primary and Append parent and Register this connection are checked. In the WINS tab, make sure Enable LMHOSTS lookup is checked. Click OK. 29.
  • Page 47 4 Commissioning c) Establishing the connection 1. Choose Start→Control Panel→Network Connections→<connection name> (i.e. in this example “DCM_via_Modem”). The properties of this connection should already have been setup. 2. Enter the term “username” in the User name field and the term “password” in the Password field as shown below.

  • Page 48: Direct Connection For Windows 2000

    User’s Manual for Node C Network Elements 4.2.3.5 Direct connection for Windows 2000 a) Setting up the device for the direct connection 1. To start the Phone and Modem Options, click Start→Settings→Control Panel→Phone and Modem Options. 2. Click the Modems tab and choose Add..3.
  • Page 49 4 Commissioning 4. Select your port, continue with Next, and in the next window click Finish. 5. Highlight the port associated with the direct connection of the RS232 or USB port. Click Properties. ID No: 161692 PRELIMINARY Page 49...
  • Page 50 User’s Manual for Node C Network Elements 6. In the General tab, change the port speed to 57600. Click the Advanced tab. Click the Change Default Preferences tab. 7. Set the Port speed to 57600 and the Flow control to None. Click the Advanced tab.
  • Page 51 4 Commissioning b) Setting up a direct connection 1. Start the Network Connection Wizard. Click Start→Settings→Network and Dial-up Connections →Make New Connection. 2. The first window is the Welcome window as shown below. Click Next. 3. The next window is Network Connection Type. Select Connect directly to another computer.
  • Page 52 User’s Manual for Node C Network Elements 4. The next window is Host or Guest. Choose Guest. Click Next. 5. The next window is Select a Device. This window will provide a drop-down list of known communication ports (devices) to choose from. Choose a serial port. If the RS232 is used, this port is most likely (COM1).
  • Page 53 4 Commissioning 7. The next window is the Complete the Network Connection Wizard. Enter Node C as the name for the connection. Click Finish. 8. The next window is the Connection window Enter <username> in the User Name field. Enter <password> in the Password field. Check Save Password.
  • Page 54 User’s Manual for Node C Network Elements 10. Choose 57600 for Maximum speed. All other boxes should not be checked. Click OK. 11. Click the Security tab. Click Advanced (custom settings). Click Settings. PRELIMINARY M0121A1A_uc.doc Page 54...
  • Page 55 4 Commissioning 12. Make sure Challenge Handshake Authentication Protocol (CHAP) Microsoft CHAP (MS-CHAP) Microsoft CHAP Version 2 (MS-CHAP v2) are checked and all the rest of the boxes are NOT checked. Click OK. 13. Click Typical and choose Require secured password. ID No: 161692 PRELIMINARY Page 55...
  • Page 56 User’s Manual for Node C Network Elements 14. Click the Networking tab. Click the Settings button. There are 3 PPP settings. Make sure they are all OFF. Click OK on the PPP Setting window. 15. Highlight the Internet Protocol (TCP/IP) component. Click the Properties tab.
  • Page 57 4 Commissioning 16. In the General tab, uncheck all boxes. In the DNS tab, make sure Append primary and Append parent and Register this connection are checked. 17. Click the WINS tab. Make sure Enable LMHOSTS lookup is checked. Click the Options tab. Click Properties. ID No: 161692 PRELIMINARY Page 57...
  • Page 58 User’s Manual for Node C Network Elements 18. Click Do not use IPSEC. Click OK. Returning to the Options tab click OK and return back to the main window. 19. Click the Sharing tab. Make sure that Shared access is OFF. Click OK.
  • Page 59 4 Commissioning c) Establishing the connection 1. Click Start→Settings→Network and Dial-up Connections→Node C. The properties of this connection should already have been setup. Enter <username> in the User Name field. Enter <password> in the Password field. Check Save Password. Click Connect and the following connection windows will appear. 2.

  • Page 60: Accessing The Web

    User’s Manual for Node C Network Elements 4.2.3.6 Accessing the web page 1. Open Internet Explorer and enter the address: 1.2.1.1. Enter <Node_M> in the User Name field. Enter <Golden_Node> in the Password field. Note that these fields are case-sensitive. 2.

  • Page 61: Main Menus Of The Web

    4 Commissioning 4.2.4 Main Menus of the Web Page For detailed information about a menu click the “Help” button to open the online help. 4.2.4.1 Setup Wizard This menu serves to align the donor antenna and provides overviews of all channels on air as wells as channel assignment.

  • Page 62: Table 4-1 Assisted Antenna Tuning

    User’s Manual for Node C Network Elements b) Typical Tuning Procedure (See example table below): 1. Point the donor antenna in the general direction of the donor base station. 2. Start the AAA. 3. Verify that the reported DL Rx Power is above –90dBm. If not, orient the antenna until the signal is above –90dBm.

  • Page 63: Connectivity And Upload

    4 Commissioning c) Notes on the AAA Measurement Results: 1. The DL RX Power is the total power in the selected 5 MHz channel. The DL Rx Power measurement is updated approximately once per second. 2. The Pilot Received Signal Code Power (RSCP) measurements are updated approximately once every four seconds after the antenna assistant finds a valid pilot channel within the selected 5MHz bandwidth.

  • Page 64: Technician Setup

    User’s Manual for Node C Network Elements 4.2.4.3 Technician Setup figure 4-7 Technician Setup menu Description Explanation Select the frequency range for channel 1, 2 and Filter Selection 3; for filter setting refer to chapter 5.2.1 Filters. Enter ratio of pilot power to total power Filter Power to Total Power Ratio (depending on base station).

  • Page 65: Alarm Management

    4 Commissioning 4.2.4.4 Alarm Management figure 4-8 Alarm Management menu Column Description Clicking any of the number buttons opens a submenu * for the 1 ID respective component/feature. All components and features listed in this column can be monitored 2 Module via software.

  • Page 66: Troubleshooting

    User’s Manual for Node C Network Elements 4.3 TROUBLESHOOTING Connection Problem: After clicking Connect, the progression goes from Dialling to a Connection Error as shown below. Possible Solutions: The connection is not configured properly. a. Click Properties→Configure in the Direct Connection window. Make sure Speed is set at 57600.
  • Page 67 4 Commissioning Connection Problem: After entering the Node C address, an HTTP error page is returned instead of the login page. Possible Solution: I. If the computer is connected to another network, the HTTP request may be going out to that network instead of to the Node C. This is likely if after entering the Node C address, the Direction Connection icon does not light up with activity.
  • Page 68 User’s Manual for Node C Network Elements For your notes: PRELIMINARY M0121A1A_uc.doc Page 68...

  • Page 69: Functional Description

    5 Functional Description 5 FUNCTIONAL DESCRIPTION 5.1 GENERAL The following figure shows the DC block diagram of the Node C. figure 5-1 DC block diagram of a Node C ID No: 161692 PRELIMINARY Page 69...

  • Page 70: Figure 5-2 Configuration Of A Node C Network Element

    User’s Manual for Node C Network Elements The following figure shows the RF block diagram of the Node C. figure 5-2 Configuration of a Node C network element The Node C is designed to amplify signals between multiple mobiles and a base station in a CDMA system.

  • Page 71: Figure 5-3 Rf Path Of A Node C, Exemplary

    5 Functional Description 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.

  • Page 72: Features Of The Node C

    User’s Manual for Node C Network Elements 5.2 FEATURES OF THE NODE C 5.2.1 Filters Filters are set automatically according to the channels set in “Setup Wizard” or “Technician Setup”. For further information about these menus refer to chapters 4.2.4.1 and 4.2.4.3. Possible filters are: two adjacent three adjacent...

  • Page 73: Vswr (Voltage Standing Wave Ratio)

    5 Functional Description 5.2.3 VSWR (Voltage Standing Wave Ratio) This feature enables the provider to query the status of the antenna system (antenna & 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” (see chapter 4.2.4.4), an alarm is released.

  • Page 74: External Alarms

    User’s Manual for Node C Network Elements 5.2.6 External Alarms The external alarms are used to monitor the status of one or more external devices via the Node C. A UPS or entry alarm is among the items that might be connected to the contact relay and monitored via the Node C.

  • Page 75: Summary Alarm

    5 Functional Description 5.2.7 Summary Alarm The summary alarm is a DC insulated contact relay. Observe that the cross-sectional area of the wires to be connected must be in the range from 0.14 - 1.5 mm Summary alarm relay contact figure 5-5 Summary alarm relay The following table indicates the three-connector pin out.

  • Page 76: Components Of The Node C And Interface Unit

    User’s Manual for Node C Network Elements 5.3 COMPONENTS OF THE NODE C AND INTERFACE UNIT The actual configuration can be seen at the configuration list*, which is part of the delivery. The following figure shows a Node C 1943** (layout of Node C 843 is the same) and an Interface Unit with PSU redundancy option (two power supplies).

  • Page 77: Figure 5-7 Duplexer, Dl In

    5 Functional Description The DL duplexer has multiple outputs, including the primary and extension path, plus forward and reverse probes used for auto setup, VSWR, and RSSI functions. figure 5-7 Duplexer, DL IN The UL IN duplexer of the Node C is equipped with a diversity filter. The duplexer is used for the primary uplink path and is shared with the downlink output.

  • Page 78: Rf And Dc Distribution Unit

    User’s Manual for Node C Network Elements 5.3.2 RF and DC Distribution Unit The RF and DC distribution unit is mounted between the duplexers and DCMs. It is the physical transport layer for communication between the downlink DCM (which has the integrated controller) and other sub-components of the Node C (see also chapter 3.2.5 Connection of Cable Bridge).

  • Page 79: Digital Channel Module (Dcm)

    5 Functional Description 5.3.3 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. Finally it performs the interference cancellation algorithms, which eliminate the normal problems associated with isolation, and has an integrated controller (in the DL part) for the entire Node C, which maintains a web server for local and remote...

  • Page 80: Uplink Final Amplifier

    User’s Manual for Node C Network Elements 5.3.4 Uplink Final Amplifier The UL path is amplified by a final amplifier for high output power. figure 5-11 Uplink final amplifier 5.3.5 Downlink Final Amplifier In the DL path, an error-correcting feed-forward amplifier, which has a high output power while maintaining superior intermodulation and linearity performance, is used as final stage.

  • Page 81: Figure 5-13 Node C X43 Dl Final Amplifier, New Type

    5 Functional Description In the Node C x43 a 43 dBm (20 W) average power final amplifier is used. figure 5-13 Node C x43 DL final amplifier, new type figure 5-14 Node C x43 DL final amplifier, former version ID No: 161692 PRELIMINARY Page 81...

  • Page 82: Distribution & Alarm Board

    User’s Manual for Node C Network Elements 5.3.6 Distribution & Alarm Board The distribution & alarm board of the Interface Unit is the main connection point for the user. It has the external alarm clamps, RS232 connectors, for local or modem connection, as well as a summary alarm relays.

  • Page 83: Power Supply

    5 Functional Description 5.3.7 Power Supply The power supply, which is mounted in the Interface Unit, transforms AC mains power into a predefined DC voltage. When performing maintenance, ensure that all circuits are voltage-free and that the Node C is disconnected from mains. The Node C may be equipped with a second power supply for redundancy.

  • Page 84: Initstrings

    User’s Manual for Node C Network Elements 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 Number of data bit: 8 bit Parity bit: No parity Stop bit:...

  • Page 85: Battery Backup

    5 Functional Description 5.4.1.3 Battery Backup 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 downlink DCM and the modem to operate for a limited period of time (see chapter 7.2.3 Specifications for Optional Equipment for battery backup time).

  • Page 86: Psu Redundancy

    User’s Manual for Node C Network Elements When the battery is charging, an LED on the module turns on. When the battery is fully charged, the LED will switch off. The location of the battery backup parts are illustrated in figure 6-3 Location of battery backup.

  • Page 87: Maintenance

    6 Maintenance 6 MAINTENANCE 6.1 GENERAL Read the health and safety warnings in chapter 1.2 Health and Safety Warnings. Note: The Node C 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.

  • Page 88: Power Supply

    User’s Manual for Node C Network Elements SMA connectors have a specified torque of 100 Ncm. Use an appropriate tool to fasten and unfasten these. Do no over tighten the connectors or screws. The table below shows various screws with their respective torques. Screw Type Tallow-drop Socket head cap...

  • Page 89: Modem

    6 Maintenance 6.2.2 Modem The optional modem is screwed to a mounting plate which is fastened to the cabinet. In order to separate the modem from the plate, the mounting plate has to be taken off first. • Before starting to remove the mounting plate, disconnect all cables. •...

  • Page 90: Battery Backup

    User’s Manual for Node C Network Elements 6.2.3 Battery Backup Snap connectors Battery pack Battery charge module figure 6-3 Location of battery backup • Before removing the battery charge module and battery, disconnect the battery cable from the battery charge module (see also figure 5-17 Battery backup).

  • Page 91: Appendix

    7 Appendix 7 APPENDIX 7.1 ILLUSTRATIONS 7.1.1 Cabinet Drawings figure 7-1 Cabinet of a Node C ID No: 161692 PRELIMINARY Page 91...

  • Page 92: Figure 7-2 Cabinet Of A Node C Interface Unit

    User’s Manual for Node C Network Elements figure 7-2 Cabinet of a Node C Interface Unit PRELIMINARY M0121A1A_uc.doc Page 92...

  • Page 93: Layout

    7 Appendix 7.1.2 Layout figure 7-3 Layout of the Node C 1937, exemplary ID No: 161692 PRELIMINARY Page 93...

  • Page 94: Figure 7-4 Layout Of The Node C 1943, Exemplary

    User’s Manual for Node C Network Elements figure 7-4 Layout of the Node C 1943, exemplary PRELIMINARY M0121A1A_uc.doc Page 94...

  • Page 95: Figure 7-5 Layout Of The Interface Unit, Exemplary

    7 Appendix Position for optional modem figure 7-5 Layout of the Interface Unit, exemplary ID No: 161692 PRELIMINARY Page 95...

  • Page 96: Specifications

    User’s Manual for Node C Network Elements 7.2 SPECIFICATIONS 7.2.1 Electrical Specifications Note: For detailed information, refer to the Environmental and Safety Specifications leaflet of the supplier. Type Node C 837 Node C 843 Frequency Uplink: 824 – 849 MHz Downlink: 869 –...
  • Page 97 7 Appendix Type Node C 1937 Node C 1943 Frequency Uplink: 1850 – 1910 MHz Downlink: 1930 – 1990 MHz Option 1: 1-11 adjacent (per module) 1.23 MHz carriers CDMA carriers Option 2: 1-3 adjacent (per module) 5 MHz carriers 1 CDMA carrier +37.0 dBm +43.0 dBm...

  • Page 98: Mechanical Specifications

    User’s Manual for Node C Network Elements 7.2.2 Mechanical Specifications Description Node C x37 Node C x43 Height, width, depth 546 x 320 x 260 mm Weight * 22 kg 25 kg Natural convection in the Twin redundant fans in the door Cooling door and on the back Natural convection on the back...

  • Page 99: Partslists

    7 Appendix 7.3 PARTSLISTS The following lists contain a list of all FRUs that are available for the Node C and Interface Unit. The Node C configuration is available in the configuration list , which is delivered with the unit. Please observe that in the following lists only the components marked * may be replaced on site.

  • Page 100: Node C

    User’s Manual for Node C Network Elements 7.3.2 Node C NodeC Type 1937 1943 Description ID No. Node C 160546 160545 160543 160544 Adapter 7/16 male -N female 112425 Cover 160735 BW 15 MHz 869-894MHz 160548 Dig.Chan. Mod. DL BW 15 MHz 1930-1990MHz 160550 BW 15 MHz 824-849MHz 160547...

  • Page 101: Index

    8 Index 8 INDEX Abbreviations..........7 Feed-Forward Amplifier......80 Address of Mikom........9 Filters Alarmforwarding ........73 High Rejection Option....... 86 Standard Feature........72 Alarms Final Amplifier.........80 External .............74 Management ..........65 Setting of Severity Level ......65 Setting of Threshold ........65 Grounding..........21 Amplifier Feed-Forward..........80 Final............80 Antenna Tuning ........62 Health and Safety Warnings.....8 High Rejection Filter .......86...
  • Page 102 User’s Manual for Node C Network Elements Optional Equipment........83 SMS Alarmforwarding ......73 Software Setup.........26, 66 Specifications Electrical (Node C 19xx)......97 Partslist Electrical (Node C 8xx)......96 Interface Unit ..........99 Mechanical ..........98 Node C ............100 Optional Equipment ........98 Power Supply .........83 Summary Alarm........75 Preamble ..........9...

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