BRAVO TECH INC. Add.: 6185 Phyllis Drive Unit D, Cypress, CA 90630 Phone: 1-714-230-8333 Website: www.bravotechinc.com Revision: UM·BMB0900-150-SG07·REV.
©1999-2008 Bravo Tech Inc. All rights reserved. The “Multi-carrier Outdoor Booster” must be installed only in a restricted access area. The “Multi-carrier Outdoor Booster” is designed to operate according to the specification of this User Manual.
Table of Contents Table of Contents 1 2 SYSTEM INTRODUCTION ....................................................................................................................... 1 1.1 OVERVIEW ............................................................................................................................................... 1 1.2 SYSTEM BLOCK DIAGRAM ...................................................................................................................... 1 1.3 FUNCTION.....
Table of Contents 3.2.2 Power Amplifier and Low Noise Amplifier Gain Setting and Calculation ....................................... 20 3.2.2.1 Gain Setting ..............................................................................................................................................20 3.2.2.2 Gain Calculation .......................................................................................................................................21 3.2.2.
Table of Contents List of Figures FIGURE 1 OUTDOOR BOOSTER ................................................................................................................................. 1 FIGURE 2 CONFIGURATION OF OUTDOOR BOOSTER ................................................................................................. 2 FIGURE 3 SYSTEM CONFIGURATION .........................................................................................................................
System Introduction 1 System Introduction 1.1 Overview Bravo Tech Inc's Multi-Carrier High Power Outdoor Booster provides higher downlink EIRP to extend the coverage of existing sites. The booster is weather resistant, has an advanced thermal management system and is capable of operating under IP55 environmental extremes. It works at the frequency of 890-915MHz (uplink) and 935-960MHz (downlink) with the Max input power of 43dBm. Figure 1 Outdoor Booster 1.
System Introduction Duplexer Duplexer Rx BTS0 Tx/Rx LNA ANT0 Tx/Rx Combiner BTS MCPA BTS1 Tx/Rx Filter Rx ANT1 Rx LNA Duplexer Figure 2 Configuration of Outdoor Booster The system is composed of a downlink MCPA, duplexers, LNA, attenuator, bypass switch, control assembly, modem and power supply.
System Introduction 1.4 Applications Coastlines and large lakes. Areas far from city center, such as remote countryside. Long and narrow districts, such as highway, railroad, sea-route. Rural areas, such as grassland and desert. Areas where macro-BTS is difficult to be built and coverage of micro-BTS is not enough, such as mountainous region, foothill, highland. Areas where the coverage of micro-BTS or micro-cell is not good, such as blind spots of micro-cell coverage.
System Introduction 1.5.1 Outline drawing Figure 4 shows the outline drawing of outdoor booster. Dimensions of outdoor booster are 437mm(17.2”) x 216mm(8.5”) x 706mm(27.8”) (H x W x D) Figure 4 Outline Drawing 1.5.2 Interface The interface of the outdoor booster is shown in Figure 5.
System Introduction Interface Description Serial Port Communication port, RS232 Power On/Off Power On/Off switch SIM slot SIM card slot of wireless modem PA Gain Binary Code Switch 1-2-4-8 binary code switch for PA gain adjustment LNA Gain Binary Code Switch 1-2-4-8 binary code switch for LNA gain adjustment Modem Antenna SMA Terminal Wireless modem antenna SMA terminal LED Indicators 8 LEDs for alarm and monitoring Table 2 Front Panel Interfaces Description Figure 6 Outdoor Booster Rear In
System Installation 2 System Installation This chapter introduces the installation of multi-carrier outdoor booster Installation steps are as the following chart:: Installation Preparation Booster Installing and Cables Connection Installation Inspection System Testing & Debugging 2.1 Installation Overview 2.1.1 Requirements on Installation Site The outdoor booster could be installed on the wall or floor, and it should be installed close to the antenna.
System Installation 2.1.3 Requirements on Illumination, Ventilation and Fire Protection The installation site should have enough illumination for installation and maintenance needs. Flammable and explosive material should not be near to the site. 2.1.4 Power requirements Nominal voltage: 220V AC. Variety range: 100-260 V AC, 47-63 Hz Single Phase. The power consumption of outdoor booster is about 1,300W. Be certain to select a fuse or a breaker with the proper capacity.
System Installation Sufficient space for installation 2.2.2 Installation Caution The following high-altitude operation should be only performed by qualified personnel under well protection. 2.2.2.1 Step 1 2 3 4 Installation onThe Wall Operations Hold mount in place. Make 6 holes (Ф10) and drill as shown in Figure 7. Install expansion bolts (concrete anchors) as shown in Figure 8. Bolt the mount into place. Assemble the bracket and mount the cabinet on the bracket by using the M8*16 bolt.
System Installation Figure 9 Wall Mounted Bracket Figure 10 Wall Mounted Preview 2.2.2.2 Step 1 2 3 4 Installation on The Floor Operations Hold mount in place. Make 4 holes (Ф10) and drill as shown in Figure 11. Install expansion bolts (concrete anchors) as shown in Figure 8. Bolt the mount into place. Assemble the bracket and mount the cabinet on the bracket by using the M8*16 bolt. Mount the bracket on the floor. (Notes: Mounting the bracket before mounting the cabinet on the bracket is acceptable.
System Installation Figure 11 Distance of Floor Installing Holes Make drill Figure 12 Base Bracket Figure 13 Floor Installation 10
System Installation 2.2.2.3 Step 1 2 Installation on The Tower Operations Hold mount in place. Assemble the bracket and mount the cabinet on the bracket by using the M8*16 bolt. Mount the bracket on the Wall with U pipe lock. (Notes: Mounting the bracket before mounting the cabinet on the bracket is acceptable.
System Installation Figure 16 Tower Mounted Preview 2.3 Cable Installation 2.3.1 Installation of Power Cable and Grounding Cable 2.3.1.1 Installation Requirements Note The NEC(National Electrical Code) does not allow signal wires to share the same conduit with power wires unless the signal cable’s voltage range is equal to the power wire’s voltage range. Avoid bundling signal cable and grounding cable/power cable together, keep them separate.
System Installation 2.3.1.2 Installation Attention All the power switchs must be switched off before cable installation. The installation of power cable and grounding cable is shown in Figure 17. The grounding cable should be green or yellow-green colored copper cable, with section larger than 4AWG(25mm2) and resistance lower than 0.5Ω. Figure 17 Installing Power Cable and Ground Cable The connection of power cable connector is shown as following figures.
System Installation 2.3.2 Installation and Connection of Feeders 2.3.2.1 Installation Requirements Shut down the base station and transmitters. Marking the feeder by label after installation. 2.3.2.2 Installation The cable installation and connection is shown in Figure 19.
System Installation 2.4 Installation Inspection 2.4.1 Booster Inspection Item Description 1 Stable and normal. 2 Properly fastened to wall or floor. 3 Screws and nuts screwed tightly, without missing flat washers and spring washers. Spring washers must be on the top of flat washers. 4 No cable damage. 5 Clean, no smudges or dust. 6 Connections between metallic configurations must be reliable, to assure the reliable electric connectivity. 2.4.
System Installation See test flowing chart on Figure 14: Test Start Test Data Before Installation OME Statistic DT Test Statistic CQT Test Statistic BTS Coverage Range Install and Adjust Booster Test Data After Installation System Optimize No Compare The Test Data Best Effect? Yes Test Process End Document Management Figure 20 Flow Chart of System Debugging 16 OME Statistic DT Test Statistic CQT Test Statistic BTS Coverage Range
Maintenances and Managements 3 Maintenances and Managements This chapter describes the operation and maintenance of the outdoor booster. 3.1 System Maintenance 3.1.1 Routine Maintenance The booster provides the following protection functions: LNA protection, overpower protection, VSWR protection and over-temp protection. When protection is triggered, the outdoor booster switches to by-pass mode and sends out alarm signal. Generally, manual maintenance is not required.
Maintenances and Managements Figure 21 Monitoring And Alarm Indicator Lights The specification of indicator lights is shown in Table 4.
Maintenances and Managements Item 1 2 3 Label Color State MAJOR ALM Red On MINOR ALM Yellow Off RF ON Green Off MAJOR ALM Red Off MINOR ALM Yellow On RF ON Green Off MAJOR ALM Red Off MINOR ALM Yellow Off RF ON Green On Description Power amplifier alarms and be shut down Power amplifier alarms but still works Power amplifier works normal Table 5 Description of Power Amplifier Indicator Lights 3.2 System Management 3.2.
Maintenances and Managements 3.2.2 Power Amplifier and Low Noise Amplifier Gain Setting and Calculation 3.2.2.1 Gain Setting Figure 23 Power Amplifier and Low Noise Amplifier Gain Setting Shown as Figure 23, ‘PA’ and ‘LNA’ switch are a 4 bits binary 8421 code switch, ‘0’ for switch ‘ON’ and ‘1’ for ‘OFF’. See the Table 7 for the switch setting in detail.
Maintenances and Managements 7 ON OFF OFF OFF 8 OFF ON ON ON 9 OFF ON ON OFF 10 OFF ON OFF ON 11 OFF ON OFF OFF 12 OFF OFF ON ON 13 OFF OFF ON OFF 14 OFF OFF OFF ON 15 OFF OFF OFF OFF Table 7 Value Setting of the 4 Bit Binary Code Switch 3.2.2.2 Gain Calculation Below descript the calculation of the gain of downlink PA and uplink LNA.
Maintenances and Managements Item 6 Symbol Description Gup LNA gain Table 8 Symbol Description Method1: The max output power of PA is 150W (51.7dBm), the gain of PA is calculated as the following formula: Gdown = Pout-Pin = Pout-(PBTS-Loss) = 51.7dBm-(PBTS-Loss) On the assumption that the output power of BTS is 20W (43dBm), the cable loss is 3dB, and then the proper gain setting is: Gdown = Pout-(PBTS-Loss) = 51.7dBm-(43dBm-3dB) = 11.
Maintenances and Managements 3 channels combination: PA gain setting Gdown=8dB Channel 1 Tx/Rx P1=43dBm Combiner Channel 2 Channel 3 Tx/Rx Tx/Rx P2=43dBm Loss=3dB Loss=3dB BTS0 ANT0 Outdoor Booster BTS1 Booster output power Pout=51dBm ANT1 Booster input power Pin=43dBm P2=43dBm PA Gain Setting Gdown=8dB TMA Gain Setting Gup=8~12dB BTS 4 channels combination: PA gain setting Gdown=8dB Channel 1 Tx/Rx P1=43dBm Combiner Channel 2 Channel 3 Tx/Rx Tx/Rx Tx/Rx BTS0 ANT0 Outdoor Boo
Maintenances and Managements P1-6=40dBm Channel 1 Tx/Rx Channel 2 Tx/Rx Channel 3 Tx/Rx Channel 4 Tx/Rx Channel 5 Tx/Rx Channel 6 Tx/Rx PA Gain Setting Gdown Loss=3dB Combiner Diversity receiver BTS0 ANT0 Outdoor Booster BTS1 Booster output power Pout=51dBm ANT1 Booster Input power (Pin) TMA Gain setting Gup=8~12dB Rx BTS For the above combination method, the PA gain setting should be 1.5dB low with one channel increasing.
Maintenances and Managements Item Alarm indicator Specification Relevant Pins Notes 1 --- Shut down by remote control Pin 1, Pin 9 Not an alarm 2 WORK Summary alarm Pin 2, Pin 10 3 LNA0/ LNA1 LNA alarm Pin 3, Pin 11 4 PA-POW Over power alarm Pin 4, Pin12 5 TEMP Over temperature alarm Pin 5, Pin13 6 VSWR Over VSWR Pin 6, Pin14 7 --- +12 output Pin 7 Not an alarm 8 --- GND Pin 15 Not an alarm Table 9 Specification of alarm and remote shutdown port 25
Technical Specifications 4 Technical Specifications RX Characteristics Specification Frequency Range 890-915MHz Instantaneous Bandwidth 25MHz Max Gain 15±1 dB Adjustable Gain Range 0~15dB Flatness over Frequency ≤±1dB Noise Figure 2.5dB Typical Output 1dB Compression (max. Gain) +15dBm Output IP3 (max. Gain) +23dBm Return loss(VSWR) 14dB (1.
Technical Specifications Dimensions (H x W x D) 706mm x 216mm x 437mm RF Connectors BTS Ports 7/16 DIN female ANT Ports 7/16 DIN female ALARM Port Circular Pull-push male, 19PIN Reliability Characteristics Specification MTBF MCPA 100,000 hours Rectifier 70,000 hours Fan 50,000 hours Other Parts 150,000 hours Options Specification Power Input 100-260V AC 27
Appendix 5 Appendix Terms/Acronyms/Abbreviation Definition ANT Antenna AWG American Wire Gauge BTS Base Transceiver Station or Base Transceiver System °C Degree Celsius CDMA Code Division Multiple Access COM Serial Communication Port CQT Call Quality Test dB Decibels dBm Power measurement referenced to the specific power level of one watt DIN Deutsches Insitut für Normung eV (German standards institution) 7-16 DIN German standards RF connector: 7mm OD of inner contact, 16mm ID of out
