ADC Telecommunications DWM025AA Digivance® WIMAX Remote User Manual

ADC Telecommunications Inc Digivance® WIMAX Remote

User manual

Document No. 913011900 Rev. 1.0 Proprietary Document WiMax Optical Fiber Repeater 10W Installation and Operation Manual Remote Unit Host Unit February 2008 Document No. 913011900 Rev. 1.1
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document ii Copyright All data and information contained in or disclosed by this document is confidential and proprietary information of Unity Wireless Ltd and all rights therein are expressly reserved. By accepting this material, the recipient agrees that this material and the information contained therein is held in confidence and in trust and will not be used, copied, reproduced in whole or in part, nor its Contents revealed in any manner to others, without the explicit written permission of Unity Wireless Ltd. Unity Wireless Ltd. Copyright© 2008, Unity Wireless Ltd. Unity Wireless Ltd. reserves the right to change specifications without notice. *All third-party trademarks are the properties of their registered owners. Preface This manual provides instructions for mounting, setting-up, and monitoring ADC OR system. The WiMax 10W Optical Fiber Repeater is used to enhance the performance of Wimax networks by improving the coverage of the base station and increasing their traffic. As a result, the resources of the base station are utilized more efficiently. In addition, ADC Optical fiber Repeater is a flexible and cost-effective solution that enables the operator to provide cellular coverage without dependence on the original cell site coverage area. It is an ideal way to achieve targeted coverage of remote areas and ‘coverage holes’, and enables advanced coverage schemes, such as BTS hoteling and distributed coverage for high data-rate networks. A powerful feature provided enables monitoring and controlling the parameters of each site from the other site (the Host unit can be controlled from the Remote unit and vice-versa), using a dedicated channel outside the WiMax frequency band. This channel is used also to synchronize the TDD frame between the Remote and Host units. ADC Repeater may be secured to an interior or exterior wall or attached to a concrete slab. Records of Changes Revision Description Initiated by Date 1.0 Preliminary Release Ram Dishon November 2007 1.1 Update Ram Dishon February 2008
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document iii Safety Information This section describes the use of warnings, cautions, and notes in this manual. It is the user’s responsibility to follow all safety instructions and regulations. NOTE: Notes clarify issues. CAUTION This symbol indicates special CAUTION required in a procedure. CAUTION signs prevent actions that may result in equipment malfunction or damage. WARNING WARNING signs prevent actions that may result in harm to personnel.
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document iv FCC Part 15A Compliance Statement This device complies with Part 15 Class A of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate Radio Frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communication. Operation of this equipment in a residential area is likely to cause harmful interference in which case the users will be required to correct the interference at their own expense. CAUTION Changes or Modifications not expressly approved by ADC could void the user’s authority to operate the equipment. For customer and technical support, contact ADC Telecommunications, Inc. P.O. Box 1101, Minneapolis, Minnesota 55440-1101 In U.S.A. and Canada: 1-800-366-3891 Outside U.S.A. and Canada: (952) 928-8080 Fax: (952) 917-1717 or send an e-mail to wireless.tac@adc.com WARRANTY ADC Telecommunications, Inc. warrants its products as per agreement. Exclusions The warranty (as per the agreement) shall not apply to defects resulting from improper or inadequate use, unauthorized modifications or misuse.
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document v Warranty Limitations Under no circumstances will ADC Telecommunications, Inc. be liable in any way to the user or any third party for damages, including any loss of profits, lost savings, or other incidental or consequential damages arising out of the use, or inability to use, the product. System Measurement and Testing Warnings WARNING When installing equipment, always connect the grounding cable first, only then connect the other cables. When testing the units in the lab or during field installation, always practice RF radiation safety rules. It is not recommended for service or lab personnel to work closer than two meters from the Remote unit antenna surfaces when it is operating. CAUTIONS • Switch off the AC or DC power to the unit before connecting or disconnecting any cable. • Do not connect or disconnect any RF coaxial connectors while power is applied to the Repeater. Disconnect power first. • Do not apply more than +10dBm of RF input power to any RF port of the OR system, or irreversible damage may occur. • When measuring high power outputs, always verify that the equipment input port is capable of handling the expected output power. • During lab or field tests, with power applied to the Repeater, do not use any mobile transmitters in a range of less than 10 meters from the unit. An unexpectedly high RF power might appear at the output ports, which might in turn damage the measuring equipment connected to that port.
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document vi Glossary ALC Automatic Level Control BDA Bi-Directional Amplifier BT Bias T BTS Base Transceiver Station dB Decibel measurement of gain and loss dBm Decibel measurement of power, related to 1mW dBmO Decibel measurement of optical power, related to 1mWO Ec Energy per chip received at the mobile's rake receiver FWD Down-link from the donor base station to the mobile users, synonym to DL HPA High Power Amplifier Io Interference LNA Low Noise Amplifier LPU Low Power Unit M&C Monitoring and Control MS Mobile Station mW Milliwatt NF Noise Figure NOC Network Operating Center OR Optical Repeater (Fiber) PA Power Amplifier RVS Up-link from the mobile users to the donor base station, synonym to UL Rx Receive TDR Time-Domain Reflectometer Tx Transmit
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document vii Table of Contents 1 Introduction........................................................................................................... 1-1 1.1About ADC Optical Fiber Repeater (OR) ....................................................................................... 1-1 1.2OR System Description................................................................................................................. 1-2 1.2.1General Description .......................................................................................................... 1-2 1.2.2Major Advantages ............................................................................................................ 1-3 2 Installation Procedure............................................................................................ 2-1 2.1Pre-installation Procedures ............................................................................................................ 2-1 2.1.1Receiving and Inspecting the Repeater ............................................................................... 2-1 Required Tools and Test Equipment.......................................................................................... 2-3 2.2Run Sweep Test ........................................................................................................................... 2-3 2.3Host Unit Installation.................................................................................................................... 2-4 2.3.1Mount the Host Unit ......................................................................................................... 2-4 2.3.2Outside the BTS enclosure ................................................................................................ 2-4 2.3.3Inside the BTS enclosure................................................................................................... 2-4 2.3.4Prepare the Electrical Power Connections........................................................................... 2-4 2.4Optical Fiber Test......................................................................................................................... 2-5 2.4.1Power Up the Host Unit. ................................................................................................... 2-5 2.5Mount the Distribution Antennas ................................................................................................... 2-5 2.6Mount the Remote Unit................................................................................................................. 2-6 2.6.1Precautions ...................................................................................................................... 2-6 2.6.2Remote Unit Installation - General Instructions................................................................... 2-6 2.6.3Sealing and Weatherproofing............................................................................................. 2-6 2.6.4Remote Unit Mounting ..................................................................................................... 2-8 2.6.5Cables Connection............................................................................................................ 2-9 3 OR System Setup and Alignment .......................................................................... 3-1 3.1Connect To The Repeater.............................................................................................................. 3-1 3.2Set the System Parameters............................................................................................................. 3-5 3.2.1System Setup Instructions ................................................................................................. 3-6 3.2.2Remote Unit FWD Gain Optimization................................................................................ 3-6 3.2.3Host Unit RVS Gain Optimization ..................................................................................... 3-7 3.2.4Noise Rise Check ............................................................................................................. 3-7 4 Troubleshooting The OR System........................................................................... 4-1 4.1Troubleshooting ........................................................................................................................... 4-1 4.2LEDs........................................................................................................................................... 4-1 4.2.1LEDs Description ............................................................................................................. 4-1 Appendix A. Specifications.................................................................................................... 1 Host Unit Specifications...............................................................................................................1 Remote Unit Specifications ..........................................................................................................2 Appendix B. Cables Connections and Pinout ......................................................................... 3 Host Unit AC Power Cable Pin-out.........................................................................................................3
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document viii Remote Unit AC Power Cable Pin-out ................................................................................................... 4 Common Cables ................................................................................................................................... 5 Grounding Cables. ...................................................................................................................... 5 RS232 Cable:.............................................................................................................................. 5 Appendix C. Accessories........................................................................................................ 6 Remote Unit Mounting Frame Dimensions.................................................................................... 6 Appendix D. Records ............................................................................................................. 7
Copyright 1-1 Proprietary Document 1 Introduction 1.1 About ADC Optical Fiber Repeater (OR) ADC optical fiber repeater provides Up-link (RVS) and Down-link (FWD) cell coverage extension. It serves as a sophisticated remote bi-directional booster, sensing and re-amplifying the RF transmission in FWD (from the base-station to the mobile users), and in RVS (from the mobile-users to the base-station), concurrently. Coverage extension results in increasing traffic through the base station, thus improving utilization of the Base Transceiver Station (BTS) resources. The WiMax system is an interactive, environment-sensitive network. Optimization of this network involves above all - coverage control. Repeaters in the WIMAX network are therefore highly interactive with the donor cell and the neighboring cells, and require flexible tuning and control. Their effectiveness depends highly on these and additional features. The Repeater Transferred-Noise, as appearing at the input to the shared-donor Base Station receiver, has a detrimental effect on the cell capacity, as shown in Figure 1-1. Figure 1-1 Capacity loss vs. repeater noise A new added feature enables monitoring and control of each site from the other site, i.e. the Remote unit can be controlled from the Host unit and vice-versa.
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document 1-2Overall Unique Advantages The OR product line shares unique features for exceptional coverage, low impact on the cell, high controllability, and low maintenance cost. The Remote unit is built of outdoor grade technology and a weather-proof unit, that guarantees low Noise Figure (NF), high power efficiency, unique flexibility in installation, and high reliability. 1.2 OR System Description 1.2.1 General Description The ADC OR system consists of two units, a Host unit, installed close to the BTS, and a Remote unit, installed in the remote site. This integrated structure provides the advantage of easy installation and maintenance. The Host Unit contains the following main units: • Optical transceiver • Signal processing and controller • Power supply Optical transceiver The optical transceiver includes a transmitter and receiver units. The transceiver converts the FWD RF signals into light wave signals, which are then sent over optical fiber. The transceiver also reconverts the RVS light waves signals back to RF. The signals passing through the optical fiber include also the M&C signals. This enables M&C of the Remote unit remotely from the Host and vice-versa. Signal Processing and Controller The RVS and FWD RF signals pass through the LPU, managed by the internal control system. The control system sets signal power levels, filters, and sets the selectable RF channels (if applicable). A local connection to the system enables M&C of each settable component. The control software is described in Chapter 3. The system controller in the LPU is monitoring and logging all activity changes and alarms.
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document 1-3System status parameters are also combined and their summary indicated by three LEDs on the repeater cabinet . The Remote Unit contains the following main units: • Optical Transceiver • LPU (Low Power Unit) • Distribution front end • System Power Supply • Frequency Channelizer that selects the desired operating channel (if applicable) Distribution Front End The distribution front end of the Remote unit consists of: Duplexer High Power Amplifier (HPA) for FWD signal Low Noise Amplifier (LNA) for RVS signal These are connected to the Distribution Tx/Rx antenna port. Both FWD and RVS amplification channels are gain-controllable, to obtain the optimal link balance with minimum noise introduction into the BTS. 1.2.2 Major Advantages Exceptional Coverage • Low system NF, with high gain, high linearity Minimum Impact on Cell • Low NF • Increased capacity, provided by the low NF • Wide range gain control for performance optimization Extremely High Reliability • Outdoor structure (Remote Unit) • Integrated electronics, internal built-in test • Automatic shut-down mechanism
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document 1-4 Exceptional Flexibility • Easy installation • Easy maintenance with simple access to Repeater components Automatic Level Control (ALC) for Power overload protection ALC range of more than 35dB beyond the maximum output power is included in the amplfing chains. During normal operating conditions, the repeater system should not reach the ALC level. The repeater should be “transparent” to the BTS power control and should not affect this mechanism. The system set-up should ensure that that maximum power of FWD and RVS channels are below the ALC level.
Copyright 2-1 Proprietary Document 2 Installation Procedure NOTE: Installing an OR requires a site plan, which is a document defining the planned parameters of the cellular network. Parameters include the channel number in use, desired Repeater’s coverage area, gain settings, and antenna location. If necessary, consult your network administrator for more information. 2.1 Pre-installation Procedures 2.1.1 Receiving and Inspecting the Repeater CAUTION Verify that the packages are complete and undamaged. If the boxes appear damaged, do not open the shipment. Never ship any unit without adequate packing! Follow this procedure prior to installation: 1. Unpack the shipment box. 2. Verify the contents of the box against the packing list. 3. Inspect the OR units for possible damage. The items in Table 2-1 are required for the installation. They are supplied separately from the installation kit.
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document 2-2Table 2-1: Complementary installation equipment Table 2-2: Repeater installation set Supplier Part Number Description Quantity ADC 1428771 Remote unit, 110 VAC 1 ADC 334053000 Cable, AC power for 110 V Remote unit 1 ADC 1428774 Host unit, indoor 1 ADC 3340408 Cable, Power, Host 1 The contents of the installation set may change without notice. Type Description Vendor Documentation This Assembly and Operation manual ADC Software Control & Monitoring Software, ready for installation. This software sets up and tunes the Repeater during installation. ADC RF cables from distribution antenna to Remote unit Customer Fiber cable from Host unit to Remote unit Customer Cables Communication cable for setting and maintenance Customer Antennas Distribution antennas Customer
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document 2-3 Required Tools and Test Equipment Table 2-3: Tools and test equipment for Repeater installation Equipment Use Ring/Open spanner ½” Install the Repeater units Ring/Open spanner 7/16” Close the ground lugs Ring/Open spanner 30-32 mm Open/close DIN 7/16 connectors Digital Voltmeter Fluke 77 or equivalent Measure voltage and polarity for the installation process Pilot Scanner / Drive Test Set Measure donor pilot signal levels Frequency domain Reflectometer Check Insertion loss and VSWR for system RF Cables Network Analyzer (optional) Check Insertion loss and VSWR for system RF Cables Signal Generator Check Isolation between antennas Spectrum Analyzer Check Repeater Output Power 30dB 50W attenuator (Cellular Band) Protect RF Test equipment from overpowered signals Type N 50Ω Termination (1 unit) Terminate antenna port during off-air test procedures Standard calibrated test cables Test equipment usage Laptop PC equipped with Windows 2000 with Service Pack 3 or Windows XP, SP2 Configure, control, and monitor the Repeater through the RS-232 communication port NOTE: For antenna installation tools, refer to your antenna installation guide. 2.2 Run Sweep Test Before installing the Repeater, check mechanical assembly of all RF connectors, run a sweep test of the RF cables and record the cables loss. Perform the sweep test using a Site Master analyzer or a Network Analyzer. • Perform open/short tests on the distribution RF cables. • Record the following parameters for each RF cable: o Insertion loss of the cable o Return loss (VSWR) • If you detect a fault in any of the cables, repair it and re-check until all the cables are good. NOTE: Record the information for reference in Appendix D. This information is used during the setup procedure.
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document 2-42.3 Host Unit Installation 1. Locate the neccassary space for mounting the Host unit inside the BTS enclosure or close to it. 2. Turn off transmission of the BTS when installing the Host unit. 2.3.1 Mount the Host Unit 2.3.2 Outside the BTS enclosure 1. The unit is designed to fit into 19” rack. In case of 23” rack, a proper adapter should be used. 2. Mount the Host unit in a way that will enable good accesibilty to the fiber, AC and RF connections. 2.3.3 Inside the BTS enclosure Locate the necessary space and fix the Host unit professionally, making sure not to block air circulation to the unit 2.3.4 Prepare the Electrical Power Connections WARNING Recap the power connectors until the Host Unit is ready to be set up. Do not connect the power yet. CAUTION Power to the Host Unit site must be supplied according to the safety standards in the corresponding country (grounded outlets, circuit breaker, conduits, etc.).
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document 2-5The cable pinout can be found in Appendix B. It is recommended to install a small junction box containing a circuit breaker of 5A before the power cable. Installing an ELCB (Earth Leakage Circuit Breaker) is highly recommended. Connect cables as follows: a. Grounding cable. b. RF cable from the BTS c. Optical Fiber cable (Clean professionally the fiber connector) d. AC cable (Use 5A circuit breaker) Figure 2-1: Host Unit 2.4 Optical Fiber Test Check the optical fiber between the BTS and the remote site using Optical Power Meter or in loop-back (if a spare fiber is available), using the optical transceivers of each end as a light source or +3 dBmO (optical), or another known source. Optical power output from the 2 OR units is +3 dBm nominal. 1310nm from Host and 1550 nm from Remote unit. Get recent/valid test data. 2.4.1 Power Up the Host Unit. 2.5 Mount the Distribution Antenna (Remote Site) The distribution antenna is supplied by the customer. Perform the following steps: • Mount the antenna in its selected height, azimuth and tilt • Connect the antenna to the feed lines and run a sweep test for antenna reflected power in the distribution frequency band. • Seal the cables
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document 2-62.6 Mount the Remote Unit 2.6.1 Precautions CAUTION The OR Remote unit is electrical equipment and should be treated accordingly. CAUTIONS • Always shut down the AC or DC supply to the Remote unit before handling, replacing, or removing the unit. • The Remote unit overall weight is ~35Kg. Carry the unit carefully. • The customer is not permitted to disassemble the Remote unit. Disassembling the unit voids the warranty. • The Remote unit is hermetically sealed in a clean environment. 2.6.2 Remote Unit Installation - General Instructions The Remote unit is intended for wall mounting. See holes dimensions in Appendix C. • RF coaxial cable connecting the Remote unit: • Type: low loss type • Diameter: 1/2” or 7/8" • Length: The cables should be as short as possible. Cable length should not exceed 100m. 2.6.3 Sealing and Weatherproofing Sealing and weatherproofing RF connectors is of prime importance to assure good electrical contact for many years and prevent passive RF inter-modulation effects. Thus, special care should be taken with the RF connectors sealing and weatherproofing.
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document 2-7For sealing instructions, refer, for example, to Andrews weatherproofing recommendations with 3MTM Cold ShrinkTM Weatherproofing Kit, or an equivalent sealing method. CAUTION Improper sealing can cause damage not covered by warranty.
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document 2-82.6.4 Remote Unit Mounting Figure 2-2: Mounting Holes Drawing 1. Select a location that will enable free air flow, away from heaters. 2. When installing inside a shelter, keep minimum spacing of 300 mm from Repeater top to the ceiling. 3. Drill holes and insert suitable dowels. See holes spacing dimensions in Figure 2-2. 4. Position the Repeater and tighten the screws.
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document 2-92.6.5 Cables Connection 1. Connect the Ground screw of the Remote unit (located at the side of the unit) to either earth-ground or the ground-rod of the building. Tighten the ground screw using a 7/16" spanner 2. Connect RF cable to the distribution (service) antenna. 3. Connect the optical fiber to the Remote Unit (Clean professionally the fiber connector). 4. Connect the power cable. Figure 2-3: Remote Unit Panel Sealing Screw
Copyright 3-1 Proprietary Document 3 OR System Setup and Alignment 3.1 Connect To The Repeater Monitoring and controling the repeater are accopmlished by a PC via web application. Connect the system (Host, Remote, cables, antennas, fiber) and power it up. Connect the Host unit to the server PC. 3.2 Local Connection Launch the application. 3.2.1 Description The Main Screen opens. This is the “Systems” screen. See Figure 3-1. Figure 3-1 There are 5 tabs on its upper part.
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document 3-2 Click on “Configuration” tab. The following screen appears (Figure 3-2). Figure 3-2 Click on “-COM settings”. The following screen appears (Figure 3-3). Figure 3-3 Define the COM port of the server to which the Host is connected; Click “Add”. Repeat for all the Host units connected to the server. Each Host unit should be connected to a different COM port. Click on “Systems” tab.
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document 3-3 If the system is connected properly (Host & Remote), the application should identify it and show it as a new link. If no link is connected, the following screen appears (figure 3-4): Figure 3-4 If you click on “Modify Link” at the right, you will be able to introduce the geographic coordinates of the Remote unit and the name of the link. See figure 3-5. Figure 3-5 The Longitude / Latitude supports the format +/- dd.dddddd (decimal degrees).
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document 3-4 + is for North and East. – is for South and West. The Name fields support up to 40 characters. Click on the Link name in Systems screen. The following screen appears (figure 3-6). Figure 3-6 This screen shows all the parameters of the system, including alarms. Note that settable parameters have “Change Value” or “Change Status” tabs. (Scroll down to see the Remote and Host details). The settable parameters are “PA Mute” of the Remote unit and Gains (Host and Remote, FWD and RVS). Click on “Change Value” or “Change Status” of the parameter you want to change, change the value / status and click “Save”. Until actual change is applied, a green note advising that a change is pending will appear. Whenever this sign appears in the Gains field, note that the Actual Gain differs from the Set Gain, implying that the ALC is in operation. At the bottom of the screen there are three tabs: • “Reset Link” soft-resets the internal software of the Remote unit, then the Host unit. • “Set Time to Host” synchronizes the Host clock with the PC clock. • “Set Time to Remote”- respectively.
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document 3-5 The “Alarms” field lists all previous and current alarms of the system. For Alarms details and troubleshooting, see Section 4. In the Main screen, click on “History and Reports” tab. The following screen appears (Figure 3-7). Figure 3-7 Clicking on “NMS Logs” will show activities of the application. The Logs can be filtered per dates. “SMS Logs” and “Repeater Alarm and Information Reports” are not used in this application. 3.3 Set the System Parameters AUTHORIZATION Administrators can perform this procedure.
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document 3-6 3.3.1 System Setup Instructions General. The set-up of Host and Remote units FWD gains are based on maximum power considerations. This means that whenever the BTS transmits at maximum power, the Remote unit will also transmit at maximum power. The set-up of the Host and Remote units RVS gains is based on known noise level introduction into the BTS Make sure that you have a documented test results of the optical fiber link loss. Otherwise, measure it and record the results. Make sure that the fiber termination type is FC/APC. Use the following guidelines to set-up the Host and Remote units: Host Unit: • Determine the absolute maximum input power to the Host unit input connector (under the heaviest traffic conditions); let this be Pinmax [dBm]. • Set the Host unit FWD gain to 0- Pinmax [dB]. (This is in order to enter the fiber at 0 dBm). • If symmetrical link is requested, set the RVS gain to the same value as the FWD gain. • If permitted, set the RVS gain 3 dB less than the FWD gain. Remote Unit: • Set the Remote unit FWD gain to the numerical value of the maximum output power of the unit in dBm, plus the absolute value of the RF loss of the fiber (in dB). • Set the RVS gain to the same value as the FWD gain. NOTE: If reduced coverage is required, reduce the gains respectively. 3.3.2 Remote Unit FWD Gain Optimization NOTE: The RVS gain must be approximately equal to the FWD gain of the Remote unit.
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document 3-7 For optimal FWD and RVS balancing it is recommended to perform an additional fine-tuning procedure on the FWD, after completing the previous processes. 1. Drive with a mobile station (MS) to the outskirts of the Remote unit coverage area and observe the Mobile Ec/Io (in test mode), or walk indoors to the worst-case location. 2. If the Mobile Ec/Io is low or marginal in the designated area, optimize the azimuth and elevation of the distribution antenna. 3. Make changes according to the following criteria: if the Mobile Ec/Io is higher than specified by the RF designer at the covered area border, decrease the FWD gain in 1dB steps, until the MS Ec/Io reaches the desired value. Do not in any case set the gain to a higher value than that determined in this Section. 3.3.3 Host Unit RVS Gain Optimization NOTE: The RVS gain must be approximately equal to the FWD gain of the Host unit. 1. Drive with a MS to the outskirts of the system coverage area, and observe the Mobile Tx Power (in test mode). Alternatively, walk indoors to the worst-case locations. 2. If the Mobile Tx Power reaches its maximum power (+23dBm), increase the RVS gain in 1dB steps until the Mobile Tx Power drops by 2dB below its maximum value (Mobile Tx power =+21dBm). 3. Do not, in any case, set the gain to a higher value than that set in this Section. 3.3.4 Noise Rise Check After completion the optimization process, verify that the noise at the RVS channel at the BTS did not rise more than 1-2dB due to the system installation. In case of noise rise greater than 2dB, decrease RVS gain to fit the BTS noise-rise parameter accordingly.
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document 3-8 3.4 Remote Control Use any PC connected to the Internet. Launch Internet Explorer on the PC (Version 6 or higher). Key-in the IP address provided by the Network Administrator. Key-in your User Name and Password. Click “Login”. From this point, operation is similar to 3.2.1 onwards.
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document 3-9 . Figure 3-8: Host Unit RVS Gain Setting Set Repeater gain for Down-link and Up-link according to 3.9.2 Mobile Tx power 23 dBm? Decrease Up-link gain in 1 dB step Increase Up-link gain in 1dB step Mobile Tx power 23 dBm? END No Yes No Drive (or walk) with an MS (in test mode) to Repeater site boundary, and observe Mobile Tx Power during a call Yes
Copyright 4-1 Proprietary Document 4 Troubleshooting The OR System 4.1 Troubleshooting Table 4-1 describes the supported alarms, their specifications and their remedies. NOTE: For unsolved problems or difficulties, contact ADC Technical Support at wireless.tac@adc.com Table 4-1: Alarms and troubleshooting 4.2 LEDs 4.2.1 LEDs Description The Remote unit contains three LEDs as described below: Alarm Specification Check the following: RF Power Alarm Output power level at Remote is below or above acceptable threshold FWD gain, input signal level VSWR Alarm VSWR reading at Remote is out of acceptable range RF cables, antenna Power Alarm Any AC/DC power source problem on host or remote unit Power cables, mains power RSSI Alarm RSSI level is out of acceptable range BTS coupler, RF cable, fiber loss Over temperature Alarm Temperature at host or remote is above or below acceptable range Cooling fins integrity and dirt Optical Link Quality Alarm Fiber link quality will be monitored and alarmed. Fiber loss, optical power output at Host and Remote
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Document No. 913011900 Rev. 1.1 Proprietary Document 4-2 The Host unit contains one bi-color LED: Green- OK Red- Alarm. System Green LED Normal System operation System red LED Indicates alarm during system operation Warning LED Indicates alarm with low severity
Copyright Appendix-1 Proprietary Document APPENDIX A. SPECIFICATIONS Host Unit Specifications Parameter Specification Forward path Input Frequency Range 2640.5 – 2673.5 MHz BW 30 MHz VSWR < 1.5:1 Input Power Range -10 to 10dBm Max Rated Input Power -10 to +10 dBm Gain -15 to 15dB, nominal –10 dB Gain control step 1dB Gain flatness ± 3 dB max, over 30MHz Reverse path Output Frequency Range 2640.5 – 2673.5 MHz VSWR < 1.5:1 Max Output Power –40dBm Gain -40 to 5dB Gain control step 1dB over complete range Gain flatness ± 0.5dB max, over 10MHz Electrical Power, Mechanics, Environment Dimensions W x H x D [mm] 480 x 44 x 420 (1U) Weight 3 Kg Mounting 19” Rack Operating Temperature -5 ÷ +50 °C RF Connectors N-Type Female Optical Connectors FC/APC Humidity 85% relative Power Supply 110 VAC. (optional- -48VDC) Power Consumption < 40W
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Copyright Proprietary Document 2 Remote Unit Specifications Parameter Specification Forward path Output Frequency Range 2640.5 – 2673.5 MHz BW 30 MHz VSWR <1.5:1 Max Output Power 10W Gain 30 to 70dB, nominal 50 dB Gain control step 1dB Gain flatness ± 3 dB max, over 30MHz Reverse path Input Frequency Range 2640.5 – 2673.5 MHz VSWR <1.5:1 Noise Figure <5dB Gain 30 to 60dB Gain control step 1dB over complete range Gain flatness ±-0.5dB max, over 10MHz Electrical Power, Mechanics, Environment Dimensions W x H x D [mm] 659x424x137 Weight 25 Kg Mounting Wall RF Connectors N-Type Female Optical Connectors FC/APC Operating Temperature -33 ÷ +55 °C Humidity 85% relative Power Supply 110VAC to 230VAC Power Consumption < 270W System Specification Local Management GUI application through RS-232 port Monitors / Controls Operation Frequency, Gain, PA Mute Alarms VSWR, Synthesizer Loss of Lock, PA Fiber Link Wavelength Single Mode, 1310/1550nm Supported Fiber Length Max. 10 km Absolute Delay Max. 5µsec, excluding fiber delay
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Copyright Proprietary Document 3 APPENDIX B. CABLES CONNECTIONS AND PINOUT Host Unit AC Power Cable Pin-out. Figure B-1: AC Power Cable Layout Brown Wire: Live Blue Wire: Neutral Yellow-Green Wire: Ground. WARNING Ensure you connect the cable correctly!
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Copyright Proprietary Document 4 Remote Unit AC Power Cable Pin-out Figure B-3: Remote Unit AC power cable.
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Copyright Proprietary Document 5 Common Cables Grounding Cables. Applies to both Host and Remote units. Use 6 AWG wire, copper wire. Use termination with a hole/holes to accommodate a ¼” screw. RS232 Cable: The following table shows the connector pins for the RS-232 cable. Table B-1: RS-232 communication connector Communication Cable Pin # Function 2 PC Rx 3 PC Tx 5 GND
Copyright Appendix-6 Proprietary Document APPENDIX C. ACCESSORIES Remote Unit Mounting Frame Dimensions Allow 300 mm spacing between Remote unit top and ceiling. Figure C-1: Remote Unit wall-mount frame
WiMax Optical Fiber Repeater 10W Installation and Operation Manual Copyright Proprietary Document 7 APPENDIX D. RECORDS Repeater System Installation Record After setting the Repeater system, it is recommended to write down the site information for future reference. Site Name (Host/Remote) System #.................................. .................. ................. Personal Phone# ..................... .................. ................. Measured RF Cable Loss Measured RF Cable Loss Distribution Ant. to Remote unit .................. .................dB Coupler to Host Unit…………………………… ……….dB Coupler to Fiber Loss………………………………………dB Fiber Loss……………………………………………… …..dB Down Link Channel Parameters RSSI level at Remote Unit........ .................. .................dBm Remote unit Down Link gain .... .................. .................dB Remote unit measured output power ...... .................dBm Host Down link Gain……………………………………….dB Host measured output power……………………………..dB Up Link Channel Parameters Up link Remote unit Gain Setting ............... ................. dB Remote unit measured output power .......... .................dBm Up link Host Gain Setting ........ .................. .................dB Host measured output power ... .................. .................dBm Updated by: ______________ Signature: ______________ Date: _____________

Navigation menu