FCC ID: PX8MBDA-80 mBDA Band Seletive Repeater

mBDA-80 MMBBDDAA BBAANNDD SSEELLEECCTTIIVVEE RREEPPEEAATTEERR USER MANUAL MBDA-80 QE: 1-0-0 Comba Telecom Inc. The information contained herein is the responsibility of and is approved by the following, to whom all enquiries should be directed in the first instance:

This is an unpublished work the copyright in which vests in Comba International

("Comba"). All rights reserved. The information contained herein is confidential and the property of Comba and is supplied without liability for errors or omissions. No part may be reproduced, disclosed or used except as authorised by contract or other written permission. The copyright and the foregoing restriction on reproduction and use extend to all media in which the information may be embodied. USER MANUAL FOR MBDA-80 0.1 CONTENTS Section Page 0.1 CONTENTS .................................................................................................................................................... 3 0.2 INDEX TO FIGURES AND TABLES ................................................................................................................... 5 0.3 HISTORY ....................................................................................................................................................... 7 0.4 GLOSSARY OF TERMS .................................................................................................................................... 8 0.5 SAFETY NOTICES AND ADMONISHMENTS ..................................................................................................... 9 1 2 GENERAL INFORMATION ............................................................................................................................ 10 EQUIPMENT DESCRIPTION .......................................................................................................................... 11 2.1 SYSTEM DIAGRAM ...................................................................................................................................... 11 2.2 EQUIPMENT LAYOUT .................................................................................................................................. 12 2.3 EQUIPMENT CONSTITUTION ....................................................................................................................... 13 2.4 KIT OF PART ................................................................................................................................................ 13 3 INSTALLATION ............................................................................................................................................ 14 3.1 WARNINGS AND ALERTS ............................................................................................................................. 14 3.2 SITE PLANNING CONSIDERATIONS .............................................................................................................. 15 3.3 INSTALLATION PROCEDURES ...................................................................................................................... 16 3.4 EQUIPMENT CONNECTORS ......................................................................................................................... 25 3.5 EQUIPMENT CONNECTION.......................................................................................................................... 27 4 COMMISSIONING ....................................................................................................................................... 29 4.1 PRE-COMMISSIONING TASKS...................................................................................................................... 29 4.2 LED INDICATORS ......................................................................................................................................... 29 4.3 COMMISSIONING PROCEDURE ................................................................................................................... 30 5 WEB GUI ..................................................................................................................................................... 32 5.1 WEB GUI CONNECTION ............................................................................................................................... 32 5.2 WEB GUI INTRODUCTION ........................................................................................................................... 33 5.2.1

[DEVICES] ............................................................................................................................................... 33 5.2.2

[COMMISSIONING] ................................................................................................................................ 35 5.2.3

[FIRMWARE] .......................................................................................................................................... 36 5.2.4

[MANAGEMENT] .................................................................................................................................... 37 5.3 COMMISSIONING PROCEDURE ................................................................................................................... 43 6 MAINTENANCE ........................................................................................................................................... 48 6.1 ALARMS ...................................................................................................................................................... 48 6.2 TROUBLESHOOTING ................................................................................................................................... 49 ENU STATUS : 1-0-0 Copyright - refer to title page Page 3 USER MANUAL FOR MBDA-80 7 APPENDICES ............................................................................................................................................... 50 7.1 APPENDIX A: TOOLS FOR INSTALLATION AND MAINTENANCE .................................................................... 50 7.2 APPENDIX B: RMA (RETURN MATERIAL AUTHORIZATION) ......................................................................... 51 ENU STATUS : 1-0-0 Copyright - refer to title page Page 4 USER MANUAL FOR MBDA-80 0.2 INDEX TO FIGURES AND TABLES Figure 1: mBDA-80 ............................................................................................................................................ 10 Figure 2: 2 Bands System Diagram for Example ............................................................................................ 11 Figure 3: Layout of mBDA ................................................................................................................................. 12 Figure 4: mBDA Screen .................................................................................................................................... 17 Figure 5: mBDA Rack ........................................................................................................................................ 17 Figure 6: Remove Cover Plates ....................................................................................................................... 18 Figure 7: PMU Installation ................................................................................................................................. 18 Figure 8: Combiner Installation ......................................................................................................................... 19 Figure 9: RF Unit Installation ............................................................................................................................ 19 Figure 10: Completed mBDA with RFU Installation ........................................................................................ 20 Figure 11: Completed mBDA with Six RFU Installation .................................................................................. 20 Figure 12: Completed mBDA of Four RFU and Two Combiners Installation ................................................ 21 Figure 13: Equipment Cabinet with Pallet ........................................................................................................ 22 Figure 14: mBDA Installation ............................................................................................................................ 22 Figure 15: Secure the Screws .......................................................................................................................... 23 Figure 16: Finish Installaiton ............................................................................................................................. 23 Figure 18: Rack Mounting ................................................................................................................................. 24 Figure 18: mBDA Front Panel Connectors ...................................................................................................... 25 Figure 19: mBDA Rear Panel Connectors ....................................................................................................... 25 Figure 20: mBDA Grounding (mBDA Rear Panel) .......................................................................................... 27 Figure 21: mBDA Power Connection (Rear Panel) ......................................................................................... 28 Figure 22: Pins Allocation for EXT_ALM Port for mBDA ............................................................................ 28 Figure 23: Commissiong Flow Chart ................................................................................................................ 30 Figure 24: Input IP Address .............................................................................................................................. 32 Figure 25: Input Domain Name ........................................................................................................................ 32 Figure 26: Input User Name and Password .................................................................................................... 32 Figure 27: Web GUI Main Screen .................................................................................................................... 33 Figure 28: [Devices] Sceen ............................................................................................................................... 33 Figure 29: Power & Monitoring Unit ................................................................................................................. 34 Figure 30: RF Unit ............................................................................................................................................. 34 Figure 31: RF Unit Detail Information ............................................................................................................... 35 Figure 32: [Commissioning] Screen ................................................................................................................. 35 Figure 33: [Firmware] Screen Upgrade ........................................................................................................ 36 Figure 34: [Firmware] Screen Pop-up Window 1 ......................................................................................... 36 Figure 35: [Firmware] Screen - Swap .............................................................................................................. 37 Figure 36: [Management] Sceen ...................................................................................................................... 37 Figure 37: Management Import&Export ........................................................................................................ 38 Figure 38: Management IP Setting ............................................................................................................... 38 Figure 39: Management SNMP Setting ........................................................................................................ 39 Figure 40: Management Security .................................................................................................................. 39 Figure 41: Modify Password ............................................................................................................................. 40 Figure 42: Management Device Reset ......................................................................................................... 40 Figure 43: Management PA Reset ................................................................................................................ 41 Figure 44: Management Device Info ............................................................................................................. 41 Figure 45: Management Isolation .................................................................................................................. 42 Figure 46: Management Report .................................................................................................................... 42 Figure 47: Commissioning Procedure Start.................................................................................................. 43 Figure 48: Commissioning Procedure Site Info. Setting .............................................................................. 43 Figure 49: Dev Info & Date/Time ...................................................................................................................... 44 Figure 50: Commissioning Procedure Isolation Detective ........................................................................... 44 Figure 51: Commissioning Procedure Isolation Detective Confirm ............................................................ 45 Figure 52: Commissioning Procedure Isolation Detection Failed ................................................................ 45 Figure 53: Commissioning Procedure Isolation Detection Finish ................................................................ 45 ENU STATUS : 1-0-0 Copyright - refer to title page Page 5 USER MANUAL FOR MBDA-80 Figure 54: Commissioning Procedure Subband bandwidth and Switch Setting ........................................ 46 Figure 55: Commissioning Procedure DL Output Power Setting Screen................................................... 46 Figure 58: Commissioning Procedure Finish ............................................................................................... 47 Table 1: mBDA Components ............................................................................................................................ 13 Table 2: KOP...................................................................................................................................................... 13 Table 3: mBDA Connections ............................................................................................................................ 26 Table 4: Pin Definition of EXT_ALM Port for mBDA ..................................................................................... 28 Table 5: LED Indications ................................................................................................................................... 29 Table 6: Commissioning Procedure ................................................................................................................. 31 Table 7: Monitoring Unit Alarm List .................................................................................................................. 48 Table 8: RF Unit Alarm List ............................................................................................................................... 48 Table 9: Monitor Unit Alarms Diagnosis ........................................................................................................... 49 Table 10: RF Unit Alarms Diagnosis ................................................................................................................ 49 ENU STATUS : 1-0-0 Copyright - refer to title page Page 6 USER MANUAL FOR MBDA-80 0.3 HISTORY Change No. 1 ENU 1-0-0 Details Of Change This user manual first created in Sep. 2017. ENU STATUS : 1-0-0 Copyright - refer to title page Page 7 USER MANUAL FOR MBDA-80 0.4 GLOSSARY OF TERMS ALC ATT BDA BS BTS DL DT FOU GUI ID LNA MCU MT Automatic Level Control Attenuation Bi-direction Amplifier Base Station Base Transceiver Station Downlink Donor Terminal Fiber Optical Unit Graphic User Interface Identification Low Noise Amplifier Main Control Unit Mobile Terminal MTBF Mean Time Between Failures MBDA Master Unit NC NF NO OMC OMT PA POI PSU RF RFU RU SMA TX/RX UL VAC Normally Closed Noise Figure Normally Open Operation & Maintenance Center Operation & Maintenance Terminal Power Amplifier Point of Interconnects Power Supply Unit Radio Frequency Radio Frequency Unit Remote Unit Sub-Miniature A Connector Transmit/Receive Uplink Volts Alternating Current VSWR Voltage Standing Wave Ratio WCDMA Wideband Code Division MBDAltiple Access ENU STATUS : 1-0-0 Copyright - refer to title page Page 8 USER MANUAL FOR MBDA-80 0.5 SAFETY NOTICES AND ADMONISHMENTS This document contains safety notices in accordance with appropriate standards. In the interests of conformity with the territory standards for the country concerned, the equivalent territorial admonishments are also shown. Any installation, adjustment, maintenance and repair of the equipment must only be carried out by trained, authorized personnel. At all times, personnel must comply with any safety notices and instructions. Specific hazards are indicated by symbol labels on or near the affected parts of the equipment. The labels conform to international standards, are triangular in shape, and are coloured black on a yellow background. An informative text label may accompany the symbol label. Hazard labeling is supplemented by safety notices in the appropriate equipment manual. These notices contain additional information on the nature of the hazard and may also specify precautions. WARNING. This is NOT a CONSUMER device. It is designed for installation by FCC LICENSEES and QUALIFIED INSTALLERS. You MUST have an FCC LICENSE or express consent of an FCC Licensee to operate this device. You MUST register Class B signal boosters (as defined in 47 CFR 90.219) online at www.fcc.gov/signal-boosters/registration. Unauthorized use may result in significant forfeiture penalties, including penalties in excess of $100,000 for each continuing violation. Note: The grantee is not responsible for any changes or modifications not expressly approved by the party responsible for compliance. Such modifications could void the users authority to operate the equipment. This device complies with Part 90 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. For compliance with the general population RF exposure limits, each individual antenna used for this transmitter must be installed to provide a separation distance greater than 29.65cm or more from all persons during normal operation and must not be co-located with any other antenna for meeting RF exposure requirements. Alert:

These draw the attention of personnel to hazards that may cause damage to the equipment. An example of use is the case of static electricity hazard. Caution notices may also be used in the handbook to draw attention to matters that do not constitute a risk of causing damage to the equipment but where there is a possibility of seriously impairing its performance, e.g. by mishandling or gross maladjustment. Warnings and Cautions within the main text do not incorporate labels and may be in shortened form. The application antenna and RF cable are not provided. The antenna gain should not exceed 10 dBi. End of Section ENU STATUS : 1-0-0 Copyright - refer to title page Page 9 USER MANUAL FOR MBDA-80 1 GENERAL INFORMATION The mBDA-80 Band Selective Wireless Repeater is designed for operation in 800MHz network.Digital band-specific linear amplifier amplifies the desired BTS carriers and provides superior out-of-band rejection. Typical units with adjustable bandwidth are programmed to specific requirements of the network. Remote configuration and surveillance is possible through Combas remote control and monitoring system, via PC or Ethernet to the OMC. Main feature:

mBDA-80 is a high quality repeater with the following features:

Supports CDMA and LTE operating. Supports multi operator configurations and up to 3 sub bands per band. Adjustable sub band via Web OMT software. Friendly and easy Web OMT interface via RJ45 connection. Integrated network card for remote configuration, monitoring and control. The figure below shows the enclosure. Figure 1: mBDA-80 NOTE: RF module is slot undependent. End of Section ENU STATUS : 1-0-0 Copyright - refer to title page Page 10 USER MANUAL FOR MBDA-80 2 EQUIPMENT DESCRIPTION 2.1 SYSTEM DIAGRAM Figure 2: 2 Bands System Diagram for Example In the downlink, the BTS signals are received by donor antenna of the repeater. After the duplexer, the signals are sent to the LNA module for pre-amplification and digital RF integrated module for digital filtering and frequency conversion. Then the DL signals will be sent to downlink PA to amplify power and filter via duplexer. After amplification, the signals are transmitted via the MT port to the service antenna. In the uplink, the mobile signals are received by the service antenna. After the MT port integrated duplexer, the signals are sent to the LNA, integrated module for digital filtering, then to PA for power amplification and to duplexer. After that, the uplink signals are sent to the donor antenna for transmission back to the BTS. ENU STATUS : 1-0-0 Copyright - refer to title page Page 11 Donor AntModemPowerSupplyAlarmIndicatorDL PAUL PAUL LNADL LNAMain Control UnitDTMTMobileMobileAntDigital Frequency Selective ModuleDL PAUL PAUL LNADL LNADigital Frequency Selective ModuleDTMTAntMobile USER MANUAL FOR MBDA-80 2.2 EQUIPMENT LAYOUT Figure 3: Layout of mBDA ENU STATUS : 1-0-0 Copyright - refer to title page Page 12 58.681.458.648226.1436485.6439265.2 USER MANUAL FOR MBDA-80 2.3 EQUIPMENT CONSTITUTION mBDA consists of the following parts:

Module Description Table 1: mBDA Components mBDA-RACK mBDA-PMU There are total 7 slots in the main chassis, where six slots for RF Units and Combiner Units, first slot is for Power & Monitoring Unit. Power & Monitoring Unit (PMU) converts the input voltage into stable DC to supply power for each RF module and provides monitor control. mBDA-RFU RF Unit processes UL/DL signal and amplifies the signal for coverage. 2.4 KIT OF PART Table 2: KOP Item Rack RF Unit (RFU)

(Packing separately) Combiner Unit (CB)

(Optional and Packaged separately) Power & Monitoring Unit (PMU)

(Packing separately) Power Supply Cable

(13 Feet 1 inch) Communication Cable Qty 1 1~6 0~2 1 1 1 End of Section Image ENU STATUS : 1-0-0 Copyright - refer to title page Page 13 USER MANUAL FOR MBDA-80 3 INSTALLATION 3.1 WARNINGS AND ALERTS Radio Frequency Energies There may be situations, particularly for workplace environments near high-powered RF sources, where recommended limits for safe exposure of human beings to RF energy could be exceeded. In such cases, restrictive measures or actions may be necessary to ensure the safe use of RF energy. High Voltage The equipment has been designed and constructed to prevent practicable danger, as far as reasonably possible. Any work activity on or near equipment involving installation, operation or maintenance must be free from danger, as far as reasonably possible. Where there is a risk of damage to electrical systems involving adverse weather, extreme temperatures, wet, corrosive or dirty conditions, flammable or explosive atmospheres, the system must be suitably installed to prevent danger. Protective Earthing For the purpose of protecting individuals fromelectrical risk, the equipment provided must be safety in design and properly maintained and used. Handling Precautions This covers a range of activities including lifting, lowering, pushing, pulling, carrying, moving, holding or restraining an object or person. It also covers activities that require the use of force or effort, such as pulling a lever, or operating power tools. Electrostatic Discharge (ESD) Observe standard precautions for handling ESD-sensitive devices. Assume that all solid-state electronic devices are ESD-sensitive. Ensure the use of a grounded wrist strap or equivalent while working with ESD-sensitive devices. Transport, store, and handle ESD-sensitive devices in static-safe environments. ENU STATUS : 1-0-0 Copyright - refer to title page Page 14 USER MANUAL FOR MBDA-80 3.2 SITE PLANNING CONSIDERATIONS 3.2.1 SITE PLANNING Site Considerations There may be situations, particularly for workplace environments near high-powered RF sources, where recommended limits for safe exposure of human beings to RF energy could be exceeded. In such cases, restrictive measures or actions may be necessary to ensure the safe use of RF energy. Installation Location Mounting surface shall be capable of supporting the weight of the equipment. In order to avoid electromagnetic interference, a proper mounting location must be selected to minimize interference from electromagnetic sources such as large electrical equipment. Environmental Humidity has an adverse effect on the reliability of the equipment. It is recommended to install the equipment in locations having stable temperature and unrestricted air-flow. The installation location for the system should be well ventilated. The equipment has been designed to operate at the temperature range and humidity level as stated in the product specifications. Powering The power & monitoring unit (PMU) provides power to all modules within the equipment. Depending on the product variant, it is recommended that the PMU operates on a dedicated AC circuit breaker or fused circuit. Grounding Requirement Verify that the equipment has been well grounded. This includes antennas and all cables connected to the system. Ensure lightning protection for the antennas is properly grounded. Cable Routing Depending on equipment configuration, a variety of types of cables are connected to the equipment:

coaxial cables, power cable, communication cable, and commissioning cable. Where applicable, ensure cables are properly routed and secured so that they are not damaged. Manual Handling During transportation and installation, take necessary handling precautions to avoid potential physical injury to the installation personnel and the equipment. ENU STATUS : 1-0-0 Copyright - refer to title page Page 15 USER MANUAL FOR MBDA-80 3.2.2 SYSTEM INSTALLATION CHECKLIST Working space available for installation and maintenance for each mounting arrangement. Ensure unrestricted airflow. Ensure earthing point is within reach of the ground wire. (2m; 6 ft. 10 in.). Ensure a power source is within reach of the power cord and the power source has sufficient capacity. Where appropriate, ensure unused RF connectors are terminated. Where appropriate, ensure unused optical fiber connectors are protected. Do not locate the equipment near large transformers or motors that may cause electromagnetic interference. Reduce signal loss in feeder cable by minimizing the length and number of RF connections. Ensure the equipment will be operated within the stated environment (refer to datasheet). Where appropriate, confirm available of suitably terminated grade of RF. Observe handling of all cables to prevent damage. 3.3 INSTALLATION PROCEDURES 3.3.1 GOODS INWARDS INSPECTION mBDA was factory tested, inspected, packed, and delivered to the carrier with utmost care. Do not accept shipment from carrier which shows damage or shortage until the carriers agent endorses a statement of the irregularity on the face of the carriers receipt. Without documentary evidence, a claim cannot be processed. Open and check each package against the packing list. For any shortage, contact Comba Telecom Systems. Do not remove items from packing materials until installation. 3.3.2 TOOLS See Appendix A for a full list of tools required for installation and maintenance. ENU STATUS : 1-0-0 Copyright - refer to title page Page 16 USER MANUAL FOR MBDA-80 3.3.3 ASSEMBLING mBDA consists of one Rack and three different modules including PMU ,RFUs and CBs (CB is optional). All the units are packed separately. Follow the steps below to assemble. Figure 4: mBDA Screen Note: PMU must be installed in the leftmost slot; RF Units are independent and can be installed in any of the remaining six slots. PMU must be installed in the leftmost slot. When assembling an mBDA system with DT Combiner and MT Combiner modules, CBs and RFUs can be installed in any of the remaining six slots. Step1: The rack with cover plates is shown in Figure 3. Please remove the cover plates before installing related modules. ENU STATUS : 1-0-0 Figure 5: mBDA Rack Copyright - refer to title page Page 17 USER MANUAL FOR MBDA-80 Step 2: PMU installation: Insert PMU and fasten the screws. Figure 6: Remove Cover Plates Figure 7: PMU Installation Step 3: Combiner Installation: When Combiners are required, insert Combiners and fasten the screws

(see below Figure) ENU STATUS : 1-0-0 Copyright - refer to title page Page 18 USER MANUAL FOR MBDA-80 Step 4: RF Units installation: Insert RFUs into any slot and fasten the screws. Figure 8: Combiner Installation Figure 9: RF Unit Installation Note: Make sure the DIP switch (located towards the rear of the RFU) is set to the ON position (see below Figure) ENU STATUS : 1-0-0 Copyright - refer to title page Page 19 USER MANUAL FOR MBDA-80 Figure 10: Completed mBDA with RFU Installation Step 5: Finish Installation. Figure 11: Completed mBDA with Six RFU Installation ENU STATUS : 1-0-0 Copyright - refer to title page Page 20 USER MANUAL FOR MBDA-80 Figure 12: Completed mBDA of Four RFU and Two Combiners Installation 3.3.4 mBDA IN NORMAL EQUIPMENT CABINET mBDA is an indoor type device. It can be installed in normal equipment cabinet, the installation procedures are shown as below:

Step 1: Make sure the equipment cabinet is available with pallet, and the pallet is fixed steadily

(Equipment Cabinet nuts, screws and pallet are not provided.). Use cabinet nuts, screws and pallet as recommended by rack manufacturer. ENU STATUS : 1-0-0 Copyright - refer to title page Page 21 USER MANUAL FOR MBDA-80 Figure 13: Equipment Cabinet with Pallet Step 2: Install the mBDA on to the pallet. ENU STATUS : 1-0-0 Figure 14: mBDA Installation Copyright - refer to title page Page 22 USER MANUAL FOR MBDA-80 Step 3: Attach the mBDA onto the cabinet with the recommended rack screws. Step 4: Finish installation. Figure 15: Secure the Screws ENU STATUS : 1-0-0 Figure 16: Finish Installaiton Copyright - refer to title page Page 23 USER MANUAL FOR MBDA-80 3.3.5 mBDA IN 19 RACK MOUNTING mBDA can also be installed in 19 rack mounting, the installation procedures are shown as below:

Step 1: Install right angle bracket and left angle bracket on back of the mounting rack (Rack nuts and screws are not provided). Use rack nuts and screws as recommended by the rack manufacturer. Step 2:Slide the mBDA-80 on to the angle brackets and confirm it is level. Step 3:Attach the mBDA-80 onto the rack with the recommended rack screws. Figure 17: Rack Mounting ENU STATUS : 1-0-0 Copyright - refer to title page Page 24 USER MANUAL FOR MBDA-80 3.4 EQUIPMENT CONNECTORS The figure below presents the connectors of mBDA. Figure 18: mBDA Front Panel Connectors Figure 19: mBDA Rear Panel Connectors ENU STATUS : 1-0-0 Copyright - refer to title page Page 25 1 USER MANUAL FOR MBDA-80 Identifier 1 & 3. LED indicator 2. OMT/LAN/RS485 4.EXT_ALM 5. DT Combiner 6. DT 7. MT Combiner 8.CPL 9.MT 10. 11. FAN 12. POWER 13. AC100~240V Table 3: mBDA Connections Functional Description LED indicator. Refer to Table 6 for more detailed information. OMT port is for local commissioning; LAN port is for remote connection; RS485 is for extension connection when adding extended equipment. External alarm connector with 4 pins. Refer to Table 4 for more detailed information. Donor signal input port and split relative signal to RF modules. Mini DIN female. RF input port, connects to DT combiner, Mini DIN female. Combined signals output port, connects to cover system, signals are from relative RF modules. Mini DIN female. Output coupler port, -40dB, QMA female, DL only. RF output port, Mini DIN female, connect to Service Antenna. Grounding connector. Fan inside Power switch. AC power supply connector. Step 1: a) For systems without CB modules installed Connect RFU modules DT port to an external combiner or donor antenna. Connect RFU modules MT port to an external combiner or service antenna. b) For systems with CB modules installed Connect donor antenna to DT port of the DT Combiner. Connect each RFU modules DT port to their respective port on the DT Combiner. Connect each RFU modules MT port to their respective port on the MT Combiner. Connect the service antenna to MT port of the MT Combiner. Step 2: Connect the power cable to the power supply port (100-240VAC, 3.5Amp maximum). ENU STATUS : 1-0-0 Copyright - refer to title page Page 26 USER MANUAL FOR MBDA-80 3.5 EQUIPMENT CONNECTION 3.5.1 GROUNDING CONNECTION This unit must always be grounded. Consult an appropriate electrical inspection authority or an electrician if you are uncertain that suitable WARNING!

grounding is available. Do not connect power before grounding. 3.5.2 mBDA GROUNDING CONNECTION Step 1: Connect the GND cable to the GND connector and the building EARTH. Recommended GND cable size is # 12 AWG. Step 2: Ensure the GND cable is connected to building GND. Grouding Connector Figure 20: mBDA Grounding (mBDA Rear Panel) 3.5.3 mBDA CONNECTIONS Step1: Connect the mBDA DT port to the RF Source downlink, and then connect mBDA MT port with RF Source uplink. Step 2: Connect the power cable to the power supply port (100-240VAC, 1Amp maximmum). ENU STATUS : 1-0-0 Copyright - refer to title page Page 27 USER MANUAL FOR MBDA-80 Power Connector Figure 21: mBDA Power Connection (Rear Panel) 3.5.4 EXTERNAL ALARM CONNECTION For EXT-ALM, this is a 4-pin connector. The following figure and table show the pin allocation and definition. Pin numbering are shown looking-into the connector on the enclosure. Figure 22: Pins Allocation for EXT_ALM Port for mBDA Table 4: Pin Definition of EXT_ALM Port for mBDA Pin number 1 Alarm definition EXT. Alarm 1 2 GND 3 EXT. Alarm 2 4 GND Note: Users need to configure Ext Alm 1~2 on WEB GUI to realize External Alarm (Refer to Chapter 5). 3.5.5 CONNECT TO PC The local commissioning and management for mBDA is achieved through connecting to the WEB based GUI. Connect mBDA to PC Connect mBDA OMT port (RJ45) to the RJ45 port of PC with supplied Ethernet cable to achieve local monitoring and management. End of Section ENU STATUS : 1-0-0 Copyright - refer to title page Page 28 1234 USER MANUAL FOR MBDA-80 4 COMMISSIONING 4.1 PRE-COMMISSIONING TASKS After equipment installation, perform the following steps before equipment powering and commissioning, check that the expected voltage, current, and power levels do not violate any ratings. Double check all connections including ground before applying power. Do not manipulate circuits or make changes when power is applied:

Visually inspect the power connection within the equipment. Ensure that all cables are correctly and securely connected, including power cables, grounding wires and RF cables. Check grounding connection and verify that the ground resistance is less than 5. Connect the equipment to the PC. Power on equipment. Monitor the initialization of the equipment though the LEDs on the panel. Refer to detailed LEDs information in the next section. 4.2 LED INDICATORS Diagnostic LEDs are located on the equipment front panel; each indicates the status of a particular function:

Table 5: LED Indications LED Indicator Normal Status PWR Steady green RUN Flashing green

(1 time/sec) ALM OFF Indication Power indicator. If LED is off, it indicates the system has no power. mBDA operation indicator. After initialization

(1~2 minutes), the LED should flash at once per sec. (When upgrade firmware, LED will flash rapidly) Alarm indicator. If LED is RED, there is an alarm. ENU STATUS : 1-0-0 Copyright - refer to title page Page 29 USER MANUAL FOR MBDA-80 4.3 COMMISSIONING PROCEDURE System commissioning can commence after the monitoring system has completed self initialization. The commissioning procedure is shown below:

ENU STATUS : 1-0-0 Figure 23: Commissiong Flow Chart Copyright - refer to title page Page 30 Connect and inquiry statusSet channel No.Input power detection and adjust the direction of Donor AntennaOutput power confirmationDrive test and adjust the direction of Service AntennaAdjust UL ATT and confirm the call quality Double check the status of BTS Uplink and the isolation between Donor Antenna and Service Antenna EndSet monitor parametersIsolation detection USER MANUAL FOR MBDA-80 Commissioning Tasks Observation Table 6: Commissioning Procedure 1. On-line and Inquiry status 2. Isolation detection 3. Set Channel No. 4. Adjust Downlink Output Power and align donor antenna Activate the OMT Main window. The system Initialization will completed in about 2 minutes. Click Connect button to enquire the repeaters status. Proceed if there is no alarm; else check the failure and attend to the alarm. Detect isolation of service antenna and donor antenna. Keep RF switch ON and set the channel number of the repeaters operating frequency. Observe DL input power from measured value. Align the direction of donor antenna until the DL input power reading is maximized. Note: To ensure that the measured DL input power is accurate, one should set the DL ATT to 0 before performing the check. 5. Configure [Equipment ID] Go to [Properties Info] and set [Equipment ID]. 6. Comm. Config 7. Select Monitoring Parameters 8. Test coverage area field intensity and adjust service antenna. 9. Verify UL gain and ensure test call produces good voice quality and there is no interfering BTS Enable the power supply by selecting On in [RF] -> [Switch]; go to

[Properties Info.] -> [Comm. Config.] and set OMC Phones No. , the service No. of SMSC, Report Mode. Select the equipment controlled and monitored parameters. If the external devices are connected to the equipment for management, please enable in the [External Alarm Info.] Interface. Use test-handset to verify field intensity within the coverage area. If needed, realign the service antenna to achieve the desired coverage. Note: If during operation, the equipment gain could not be set to maximmum or the output power is not high enough due to insufficient donor and service antennas isolation, then the antennas position should be changed to increase isolation. If the output power is too high and ALC is activated, then adjust the DL ATT to achieve optimal DL Gain. Adjust UL gain and perform test calls. Typically, the UL gain is set around 5dB less than DL gain. Perform test calls in the coverage area while adjusting UL gain if required. Note: If the repeater is near the BTS and the test call performance is poor, this may be due to UL noise interference to the BTS. Users can calculate and determine if the repeater UL noise will interfere with the BTS. Verify again that there is no unacceptable interference to BTS. End of Section ENU STATUS : 1-0-0 Copyright - refer to title page Page 31 5 WEB GUI mBDA can be monitored and controlled by WEB GUI, follow below contents to achieve system parameter setting and commissioning. 5.1 WEB GUI CONNECTION Step 1: Connect PMU OMT port to PC RJ45 port with the supplied Ethernet cable to set up a physical connection. Step 2: Open browser (browser IE7.0, IE8.0, Chrome or Firefox, suggest disply resolution is 1024768), input Web GUI IP address: 192.168.8.101, click [Enter]. Figure 24: Input IP Address NOTE: DHCP and DNS are also available to login Web GUI. The domain name is: www.combaomt.com. Input User Name: admin; Password (default password: admin). Click [Log in]. Figure 25: Input Domain Name Figure 26: Input User Name and Password USER MANUAL FOR MBDA-80 5.2 WEB GUI INTRODUCTION After log in, the Web GUI main screen will appear. We take dual bands products for example. Figure 27: Web GUI Main Screen On Comba Web GUI Home Screen, there are four Menu bars:

[Devices], [Commissioning], [Firmware] and [Management]. 5.2.1

[DEVICES]

The [Devices] Screen shows the actual active modules of mBDA. Click here for PMU management page Click here for RFU management page Figure 28: [Devices] Sceen ENU STATUS : 1-0-0 Copyright - refer to title page Page 33 USER MANUAL FOR MBDA-80 PMU Main Management Screen This part show PMU alarm status This part show PMU basic information Figure 29: Power & Monitoring Unit RF Unit Management Screen Click here to enable/disable alarm This part shows configuration of PMU external alarm RFU display overview Slot information of RFU PA information of RFU RFU frequency band RFU parameter Commissioning information of RFU NOTE: There are three statuses for PA Service: Normal, Recovery and Shutdown. If PA output power or reflected power exceeds the threshold, software will trigger Recovery:

Figure 30: RF Unit ENU STATUS : 1-0-0 Copyright - refer to title page Page 34 USER MANUAL FOR MBDA-80 It will reset PA and then re-detect the PA output power and reflected power, if they are normal, the PA Service Status will turn to Normal, if PA output power or reflected power is still over the threshold, PA Service Status will turn to Recovery again. If PA output power or reflected power is still over the threshold after six times of PA Recovery, PA Service status will be Shutdown which will need to be reset manually. Reset at Management > PA Reset. Click 800MHz to check Alarm information and configuration table of 800MHz RFU 5.2.2

[COMMISSIONING]

Figure 31: RF Unit Detail Information RF parameter setting table of 800MHz RFU A work flow of the commissioning process is shown on [Commissioning] Screen. Click the [Start] button, the software will guide you through the commissioning step by step. For details, please refer to chapter 5.3. ENU STATUS : 1-0-0 Figure 32: [Commissioning] Screen Copyright - refer to title page Page 35 USER MANUAL FOR MBDA-80 5.2.3

[FIRMWARE]

There are two functions on the [Firmware] bar: [upgrade] and [swap]. [Upgrade] is used to upgrade software, and [Swap] is to replace current firmware version to the previous one. Follow steps shown in below figure to upgrade firmware. Figure 33: [Firmware] Screen Upgrade Step 4: After clicking

, a window will pop up and click

. Figure 34: [Firmware] Screen Pop-up Window 1 Step 5: Wait for 2~4 minutes while mBDA is being reset. Click to continue. Step 6: Clear browsing history and cookies from browser. NOTE: For PMU software upgrade, users need to re-login Web GUI after reset is done. Follow steps shown in below figure to Swap firmware. ENU STATUS : 1-0-0 Copyright - refer to title page Page 36 USER MANUAL FOR MBDA-80 Figure 35: [Firmware] Screen - Swap 5.2.4

[MANAGEMENT]

Other parameters can be configured on [Management] Screen. Figure 36: [Management] Sceen There are nine function bars list in the left side of the [Mangement] Screen. Below figures are the introduction of each function bar. ENU STATUS : 1-0-0 Copyright - refer to title page Page 37 USER MANUAL FOR MBDA-80 Inport&Export Figure 37: Management Import&Export The parameters that can be import/export as below: sub band, alarm enable, ATT value, RF switch, DL output power and so on. Import and Export can help users quickly configure mBDA parameters. For example, if one mBDA finished configuration, users can export its parameters and save as a file in PC, and then import this file to other mBDA to fast finish the device parameter setting. IP Setting ENU STATUS : 1-0-0 Figure 38: Management IP Setting Copyright - refer to title page Page 38 USER MANUAL FOR MBDA-80 Note: For remote monitoring, the IP Address must be set correctly according to the location IP of remote connection. If more than one equipment is connected to the public network through the same router, the routers local IP CANNOT be set as 192.168.8.*. SNMP Setting Security Figure 39: Management SNMP Setting Click

, [Modify Password] window will pop-up. Figure 40: Management Security ENU STATUS : 1-0-0 Copyright - refer to title page Page 39 USER MANUAL FOR MBDA-80 Figure 41: Modify Password Note: Username cannot be modified. Device Reset Figure 42: Management Device Reset

, all the parameter and alarm will set to factory default value. Device Reset Note: If users click process will last about 2~4 minutes. For PMU monitor reset, users need to re-login WEB GUI. ENU STATUS : 1-0-0 Copyright - refer to title page Page 40 USER MANUAL FOR MBDA-80 PA Reset Figure 43: Management PA Reset Note: PA will be turned off by software when PA output power or (VSWR) reflected power is exceed the threshold. Users need to reset PA after debugging. Device Info Note: Users can input maximum 30 bytes characters in Device Info. Figure 44: Management Device Info ENU STATUS : 1-0-0 Copyright - refer to title page Page 41 USER MANUAL FOR MBDA-80 Isolation Figure 45: Management Isolation Note: This Step is the same as step3 of [Commissioning]. Users can check isolation again by clicking Check button. Report Figure 46: Management Report Note: Click Create to create report (The report cannt create in IE browser.) and make sure the computer has installed PDF Reader software. If no, users will see nothing. ENU STATUS : 1-0-0 Copyright - refer to title page Page 42 USER MANUAL FOR MBDA-80 5.3 COMMISSIONING PROCEDURE To complete the installation and commissioning, users need to follow the steps below. Step 1: Click Menu bar [Commissioning] on home screen, a work flow will show up. Figure 47: Commissioning Procedure Start Step 2: Click to start the process. Figure 48: Commissioning Procedure Site Info. Setting ENU STATUS : 1-0-0 Copyright - refer to title page Page 43 USER MANUAL FOR MBDA-80 Step 3: Click

, users can set the site information. Figure 49: Dev Info & Date/Time Dev Info mainly used to record device location and Date/Time provid a time reference. Click the Config Value of Date/Time, will update Date/time automatically. NOTE: Make sure the device is connected with appropriate donor and service antennas before proceeding to step 4. Step 4: Click to enter to Isolation Detection Screen shown as Figure 51 Select a frequency band (RFU) that need to commission. Click 53. Click to start Isolation Detecting, then [Confirm] window will pop-up shown as Figure to continue. If isolation detection success, the process will go to RF Settiing Screen shown as Figure 55. If failed, a Tips window will pop-up shown as Figure 54, users need to check whether the system isolation is very weak. NOTE: At the end of first frequency band commissioning, user can start other frequency band commission. Figure 50: Commissioning Procedure Isolation Detective ENU STATUS : 1-0-0 Copyright - refer to title page Page 44 USER MANUAL FOR MBDA-80 Figure 51: Commissioning Procedure Isolation Detective Confirm Figure 52: Commissioning Procedure Isolation Detection Failed Here shows the isolation detection result Figure 53: Commissioning Procedure Isolation Detection Finish Step 5: RF Setting Screen for setting subband bandwidths and switchs. ENU STATUS : 1-0-0 Copyright - refer to title page Page 45 USER MANUAL FOR MBDA-80 Step3 : Click submit to finish RF setting of selected sub band Step1: Select a sub band to modify RF parameter Step2: Configure RF parameter in this table Figure 54: Commissioning Procedure Subband bandwidth and Switch Setting NOTE: For each RF module, the 3 subband bandwidth setting should not be overlap each other, if yes, only 1 subband can be turn on, other overlap subband is forbided to switch on by equipment. Step 6: Click setting. to enter to DL output power setting after finishing subband bandwidths and switchs Figure 55: Commissioning Procedure DL Output Power Setting Screen ENU STATUS : 1-0-0 Copyright - refer to title page Page 46 USER MANUAL FOR MBDA-80 Step 7: Click commissioning. to commission other RFUs parameters. Click to finish the Figure 56: Commissioning Procedure Finish End of Section ENU STATUS : 1-0-0 Copyright - refer to title page Page 47 USER MANUAL FOR MBDA-80 6 MAINTENANCE The mBDA is designed for trouble-free operation and generally does not need maintenance. Maintenance activities should only be carried out by trained personnel. The equipment operation status can be observed remotely through OMC. Periodic inspection of the repeater equipment(s) is recommended, the recommended tasks includes:

Make sure the cable gland and sealing on the RF cable connectors are not damaged. 6.1 ALARMS Inspect and record operation status and output power of the repeater from OMC or OMT. Verify the direction and position of antennas. Re-align if necessary. Verify lightning and grounding protection is in good condition. Alarm List Alarm Condition Table 7: Monitoring Unit Alarm List RF Unit Alarm Ext Alarm Fan Alarm Over-Temperature Alarm Alarm when any RF unit is alarm, otherwise normal;

Alarm judgment period: Immediately;

Alarm status when the external terminals have the same H/L level with alarm level, otherwise normal;

Alarm period: 10s by default. Alarm when the Fan has broken, otherwise normal; Fan2 is close to MCU. Another one is Fan1;

Alarm period: 10s by default. Alarm when equipment temperature is higher than the threshold, otherwise normal;

Alarm judgment period: 3 minutes by default;

Alarm threshold : 80 by default. Alarm List Alarm Condition Table 8: RF Unit Alarm List Over DL P_in Alarm PLL Alarm LNA Alarm DL PA Alarm VSWR Alarm Protection Shut Alarm ENU STATUS : 1-0-0 Alarm when DL input power is higher than the threshold, otherwise normal;

Alarm judgment period: 3 minutes by default;

Alarm threshold: -30dBm by default. Alarm when PLL circuit is broken, otherwise normal;

Alarm judgment period: 3 minutes by default;

Alarm When LNA is broken, otherwise normal;

Alarm judgment period: 3 minutes by default;

Alarm when PA Over-temperature Alarm, PA DL output power overload Alarm, Reflection Power Alarm happens, otherwise normal;

Alarm judgment period: 3 minutes by default. Alarm when the DL reflection power is higher than the threshold, otherwise normal;

Alarm judgment period: 3 minutes by default;

Alarm threshold: 2.0 by default. Alarm when the PA status is off itself, otherwise normal;

Alarm judgment period: 10s by default. Copyright - refer to title page Page 48 USER MANUAL FOR MBDA-80 6.2 TROUBLESHOOTING Following installation and commissioning, occasional operation tasks to handle alarms may be required:

Table 9: Monitor Unit Alarms Diagnosis Alarm condition Diagnosis RF Unit Alarm Ext Alarm Fan Alarm Over-

Temperature alarm Check RF Unit alarm on WEB GUI. Check to make sure if the external device connected is working normally. Check to make sure the fan is working normally. Check temperature on WEB GUI If device temperature is over threshold, make sure environment temperature is within the envireonment temperature range that device supported (-20~40). Apply climatic protection to the system under severe environment. Table 10: RF Unit Alarms Diagnosis Alarm condition Diagnosis Over DL P_in Alarm PLL Alarm LNA Alarm DL PA alarms Test DL input power of the alarm RF Unit, if it is higher than threshold, changing the threshold value; when the DL input power is more than -40dBm, it is recommended to add an external attenuator with proper attenuating value. Check device on WEB GUI;

Restart the device, if the PLL alarm is not fixed, replace the RF Unit. Check device on WEB GUI;

Restart the device, if the LNA alarm is not fixed, replace the RF Unit. Check PA Service Status on WEB GUI RU page, If it is [Recovery], reset PA on WEB GUI Management page, then read RF Unit output power:

If output power is exceed threshold, need to reduce gain or input power; if output power is normall, check whether antenna port VSWR is too high. Protection Shut Alarm If it is [Shutdown], Refer to Protection Shut Alram Make Sure the environment temperature is -20~40 Reset PA, if PA service status turns to [Recovery], and then refer to DL PA Alarms. If PA still shutdown, the PA part maybe broken, please replace the RU. End of Section ENU STATUS : 1-0-0 Copyright - refer to title page Page 49 USER MANUAL FOR MBDA-80 7 APPENDICES 7.1 APPENDIX A: TOOLS FOR INSTALLATION AND MAINTENANCE The following tools (not included in package) are required for installation or routine maintenance:

Power Drill (for wall mount) Adjustable Wrench (0.31 inch~0.79 inch) Philips Screwdriver Allen wrench (M6) Signal generator support output power 10dBm. Site Master ENU STATUS : 1-0-0 Copyright - refer to title page Page 50 USER MANUAL FOR MBDA-80 7.2 APPENDIX B: RMA (RETURN MATERIAL AUTHORIZATION) End of Section End of Document FOR NAM OFFICE EMAIL, PLEASE INSERT: support.us@comba-telecom.com ENU STATUS : 1-0-0 Copyright - refer to title page Page 51 USER MANUAL FOR MBDA-80 ENU STATUS : 1-0-0 Copyright - refer to title page Page 52