bravo tech bmb0900 booster user manual

7/30/2019 Bravo Tech BMB0900 Booster User Manual

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BRAVO TECH INCAdd.: 6185 Phyllis Drive Unit D, Cypress, CA 90630Phone: 1-714-230-8333Website: www.bravotechinc.com

Revision: UMBSB0900-180-SG01REV.A


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Index

i

Index

1 System Overview........................................................................................................ 11.1 General description......................................................................................................11.2 System Block Diagram.................................................................................................21.3 Function.......................................................................................................................31.4 Application ...................................................................................................................31.5 System Configuration...................................................................................................4

1.5.1 Indoor unit (booster) ..........................................................................................41.5.2 Outdoor unit (TMA)............................................................................................6

2 System Installation...................................................................................................... 72.1 Installation overview.....................................................................................................7

2.1.1 Requirements of installation site........................................................................72.1.2 Requirements of cautery-free and shock-resistant ............................................ 72.1.3 Requirements of illumination, airiness and fire protection..................................72.1.4 Power requirements ..........................................................................................82.1.5 Requirements of lightning protecting and grounding..........................................82.1.6 Installation preparation ......................................................................................8

2.2 Indoor unitBooster installation..............................................................................82.2.1 Installation requirements....................................................................................82.2.2 Installation steps................................................................................................9

2.3 Outdoor unit (TMA) installation ..................................................................................102.3.1 Installation requirements..................................................................................102.3.2 Installation .......................................................................................................10

2.3 Cable installation and laying ......................................................................................112.3.1 Installation of power cable and grounding cable of the indoor unit................... 112.3.2 Installation and connection of feeder ............................................................... 12

2.4 Installation check .......................................................................................................142.4.1 Device check...................................................................................................142.4.2 Cable check.....................................................................................................14

2.5 System test................................................................................................................143 Maintenances and Managements............................................................................. 16

3.1 System maintenance .................................................................................................163.1.1 Routine maintenance....................................................................................... 163.1.2 Pilot lamp.........................................................................................................16

3.2 Device management..................................................................................................183.2.1 In waiting statement.........................................................................................183.2.2 In protection statement....................................................................................183.2.3 Status descriptions ..........................................................................................183.2.4 Alarm scope setting .........................................................................................213.2.5 Parameter Setting............................................................................................ 213.2.6 Alarm indication port specification ................................................................... 22


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Index

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4 Technical Specification ............................................................................................. 23

Figure Index

Figure 1 Indoor Unit - Booster........................................................................................... 1Figure 2 Outdoor Unit - TMA............................................................................................. 2Figure 3 Configuration of Double MCPA System.............................................................. 2Figure 4 Configuration of Single MCPA System ............................................................... 2Figure 5 System Configuration.......................................................................................... 4Figure 6 Indoor Unit ..........................................................................................................4Figure 7 Indoor Unit(Booster) Interface............................................................................. 5Figure 8 TMA .................................................................................................................... 6Figure 9 Drilling Hole.........................................................................................................9Figure 10 Installing Inflatable Bolt ..................................................................................... 9Figure 11 Installing Booster ............................................................................................ 10Figure 12 Bracket for TMA.............................................................................................. 11Figure 13 Installing of TMA ............................................................................................. 11Figure 14 Installing power cable and ground cable......................................................... 12Figure 15 Installing Cable ............................................................................................... 13Figure 16 System Testing Flow....................................................................................... 15Figure 17 Pilot Lamps & LCD.......................................................................................... 16Figure 18 Pilot lamps for power amplifier ........................................................................ 17Figure 19 Pilot lamps & LCD........................................................................................... 21Figure 20 Alarm indication port ....................................................................................... 22


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Index

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Table Index

Table 1 The Composing of BMB0900............................................................................... 1Table 2 Indoor Unit(Booster) Interface Specification......................................................... 5Table 3 TMAS Interface Specification.............................................................................. 6Table 4 Installation Flow ................................................................................................... 7Table 5 Steps of Installing Indoor Unit .............................................................................. 9Table 6 Installing steps for TMA...................................................................................... 10Table 7 Device check...................................................................................................... 14Table 8 Cable Installation Check .................................................................................... 14Table 9 Specification for pilot lamp ................................................................................. 17Table 10 Specification for power amplifier pilot lamps .................................................... 17Table 11 Specification for power amplifier alarm ............................................................ 19Table 12 Power amplifier alarm limit ............................................................................... 21Table 13 ANT0 Port Output power setting for TMA......................................................... 21Table 14 Low noise amplifier gain setting ....................................................................... 22Table 15 Example number for low noise amplifier gain setting ....................................... 22Table 16 Power amplifier attenuation setting .................................................................. 22Table 17 Example number for power amplifier attenuation setting ................................. 22


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Chapter 1- System Overview

1

1 System Overview

This chapter introduces the function, character, elements and structure of multi-carrier

booster BMB0900.

1.1 General description

Bravo Tech Inc s newly introduced Multi-Carrier Booster BMB0900 amplifies uplink and

downlink signal, extend the coverage of GSM networks and improve uplink sensitivity, so

as to improve the connect efficiency of network.

Booster BMB0900 consists of indoor unit (Booster) and outdoor unit (TMA-Tower Mounted

Amplifier). Indoor unit amplifies downlink signal, controls and monitors, and gives power

supply. Outdoor unit amplifies uplink signal.

Table 1 The Composing of BMB0900

Model Sort Composing Function

Indoor unit - BoosterAmplify downlink signal, control andmonitor, power supplyBMB0900 BTS Booster

Outdoor unit - TMA Amplify uplink signal

Booster (indoor unit) is shown as Figure 1, and TMA (outdoor unit) is shown as Figure 2.

Figure 1 Indoor Unit - Booster


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Figure 2 Outdoor Unit - TMA

1.2 System Block Diagram

The following figures show the system block diagram of the multi-carrier booster BMB0900.

Dual MCPA System:

Figure 3 Configuration of Double MCPA System

Single MCPA System:

Figure 4 Configuration of Single MCPA System


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1.3 Function

Multi-carrier booster BMB0900 has the following functions:

z Indoor unit (booster) amplifies downlink signal from 20W to 180W, so

as to extend the coverage of BTS.

z Outdoor unit (TMA) amplifies uplink signal, reduce noise figure and

improve uplink sensitivity.

z Auto by-pass function.

z Built-in input attenuator. Eliminating the need of changing BTS S

output power, and system wont be fault or shut down because of BTS

recover, taking over or frequency changing.

z Reducing power dissipation, dont need extra power supply from BTS.

z Modularize design make the system convenient to maintain, and

support Online maintain and online replacement.

z Extensive system monitoring and control (local and remote)

z System can be upgraded smoothly, and support more carriers, up to 16.

1.4 Application

Multi-carrier booster BMB0900 provides coverage for following applications:

z Coverage for the surface of coastline and large lake.

z District far from city center, such as remote countryside.

z Long and narrow district, such as highway, railroad, sea-route.

z Special districts, such as grassland and desert.

z District where macro-BTS is difficult to be built in and coverage of

micro-BTS or micro-cell is not enough, such as mountainous region,

foothill, highland.

z District where the coverage of micro-BTS or micro-cell is not good,

such as blind spot of micro-cell coverage.

z Large landscape district.

z

Large district where wireless user is few.z The edge of cities where the users need high quality wireless network.


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1.5 System Configuration

The system configuration of multi-carrier booster BMB0900 is shown as Figure 5.

Figure 5 System Configuration

1.5.1 Indoor unit (booster)

Indoor unit (booster) amplifies downlink signal from 20W to 180W, so as to extend the

coverage of BTS. The dimension of indoor unit (booster) is 800mm*330mm*600mm.

330

600

800

610

190

Figure 6 Indoor Unit

INDOOR UNIT

BOOSTER

Ant enna Ant enna

BTS

OUTDOOR

UNIT

TMA

Tx1,Tx2/Rx0

Multi-Carrier Booster

BMB0900

Tx3,Tx4/Rx1


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5

Booster can be configured for 1-3 sectors as users command. Booster consists of MCPA

unit, RF conditioning unit (RFCU), control unit and power unit. MCPA unit amplifies the

power of multi-carrier signal, 2 MCPAs can be configured for single-sector system, 6

MCPAs can be configured for 3-sector system. RFCU consists of duplexes, which couples

uplink and downlink signal. Control unit monitors the boosters working state and alarm

information. By-pass function will be activated by control unit in case of system failure.Power unit consists of rectifier and breaker, supply power for indoor and outdoor units.

1. Interface

The interface of indoor unit (booster) is on the top of the case, as shown in Figure 7. The

specification of interface is shown in chart 2.

Figure 7 Indoor Unit(Booster) Interface

Table 2 Indoor Unit(Booster) Interface Specification

Interface Specification

POWER Input power interface for 220V AC

BTS0 Connect to BTS TX0/RX0

BTS1 Connect to BTS TX1/RX1

ANT0 Connect to jumpers of feeder(TX0/RX0)

ANT1 Connect to jumpers of feeder(TX1/RX1)

DC+12V (Up) DC +12V output power supply, connect to Bias-T, power supply for TMA1

DC+12V (Down) DC +12V output power supply, connect to Bias-T, power supply for TMA2

ALARM ALARM output port


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2. Power supply

Power unit supplies power for downlink amplifier(MCPA) and uplink amplifier(TMA), and

the input voltage is 220V AC, output voltage is +27V and +12V.

The power consumption of the booster is about 900W.

1.5.2 Outdoor unit (TMA)

TMA amplifies the power of uplink signal, reduces noise figure and improves uplink

sensitivity, whose dimension is 290mm x 200mm x 85mm, and weight is 8.5kg.

Figure 8 TMA

Table 3 TMAS Interface Specification

Interface Specification

To BTS Connect to indoor unit booster

To ANT Connect to antenna


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Chapter 2- System Installation

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2 System Installation

This chapter introduces the installation method of multi-carrier booster BMB0900.

Installation steps are as the following chart.

Table 4 Installation Flow

Step Specification

1 Installation prepare

2 Installing indoor unit

3 Installing outdoor unit

4 Installing and connecting the feeder

5 Installation checking

6 System testing

2.1 Installation overview

2.1.1 Requirements of installation site

1.Requirements of the wall for outdoor unit installation

z The wall should be water-resistant, dry, non-caustic and without high-voltage

power leaking.

z The cabinet should be mounted in the wall which bearing capacity is more than

20kg.z The concrete wall and brick wall are recommended, which can fix expanded

screws. Masonry wall or sandy-dust wall is not suitable.

2. Requirements of the mast for outdoor unit installation

z The mast should be stable, dry, non-caustic and without high-voltage power

leaking.

z The mast should be suitable for installing the U-bolts.

2.1.2 Requirements of cautery-free and shock-resistant

To keep the safety of products and operators, the installing location must be without

caustic or poisonous fog and gas. The wall which cant meet the requirement of

shock-resistant must be pined up or fixed.

2.1.3 Requirements of illumination, airiness and fire protection

The installation site should have enough illumination for installation and maintenance need.

Flammable and explosive material should not be near to the site. The portable fire

extinguishers must be setup around in regular distance to prevent fire.


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2.1.4 Power requirements

Nominal voltage: 220V AC. Variety range: 180-264 V AC, 47-63 Hz Single Phase

The power consumption of booster is about 900W. Be cautious to the fuse capacity.

2.1.5 Requirements of lightning protecting and grounding

The cross section of grounding cable must be more than 25mm2

. The grounding cableshould be connected to the ground unused connector. Keep the grounding cable as short

as possible.

2.1.6 Installation preparation

The following technical files and tools are needed:

1.Technical files

z Contract, equipment scheme chart.

z Designing and construction drawing of installation site.

z Multi-Carrier Booster BMB0900 User Manual

2.Tools and meter

z Multimeter

z Cross point screwdriver

z Slotted screwdriver

z Wrench

z Drill

z Spectrum analyzer

z Signal generator

z VSWR testing device

z N connector

z RF testing cable

2.2 Indoor unitBooster installation

2.2.1 Installation requirements

z Installed beside BTS

z Convenient to maintain BTS

z Near to BTS

z In the same site with BTS


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2.2.2 Installation steps

Attention:

Before intalling the indoor unit, confirm the necessity of the fixation of the

indoor unit. If it will be moved in future, or if the fixation is not necessary, the

fixation of indoor unit is not required.

Table 5 Steps of Installing Indoor Unit

Step Operation

1 Drill 4 holes(13) in the concrete floor. Deepness is 52-60mm, shown asFigure 9,

2 Knock the inflatable bolt into the hole, shown as Figure 10.

3 Fix the booster into the floor.

The diameter of booster fixing hole is12, the distance of hole is 390*380mm. The M10

bolt will be suggested to use for fixing the booster.

The following figures show the installing steps.

Figure 9 Drilling Hole

Figure 10 Installing Inflatable Bolt


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Figure 11 Installing Booster

2.3 Outdoor unit (TMA) installation

2.3.1 Installation requirements

z Be installed under the antenna

z Be Near to the antenna

z Need enough room for installation

2.3.2 Installation

Warning:

The following steps is high-altitude operation, only suitably qualified

personnel is allowed to work on this unit and only after becoming familiar with

all safety notices, installation, operation and maintenance procedures

contained in this manual.

Table 6 Installing steps for TMA

Step Operation

1 Installing the TMA bracket on the tower, shown as Figure 12. Fixing thebracket by using clamp A and clamp B.

2 Installing the hexangular bolt in the clamp A.

3 Fixing the TMA at the bracket.


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Figure 12 Bracket for TMA

TMA installation is shown as Figure 13

Figure 13 Installing of TMA

2.3 Cable installation and laying

2.3.1 Installation of power cable and grounding cable of the indoor unit

1. Installation requirements

z Avoid the crossover between signal cable and grounding cable/power

cable.


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z In the case, the power cable and grounding cable must be integrative,

without connector in it.

z Check open circuit and short circuit before installing the power cable.

2.Installation

Warning:All the power switchs must be disconnected before cable connecting, dont

operate the cable with the power on. The cable outside of the cabinet must

be covered with ripply bushing.

The installation of power cable and grounding cable is shown as Figure 14.

Power cable connects to 220V AC, the red side connects to positive terminal

and the black side connects to negative terminal. The grounding port is on

the bottom of cabinet. The grounding cable is yellow-green copper cable and

whose diameter is bigger than 25mm2

and resistance is less than 5

Figure 14 Installing power cable and ground cable

2.3.2 Installation and connection of feeder

1.Installation requirements

z Shut down the base station and transmitters.

z Dont connect the current coupling in reverse.

z Marking the feeder by label after installation.


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2.Installation

The cable installation and connection is shown as Figure 15

Figure 15 Installing Cable

Attention:

Bias-T must be installed between the base station lightning arrester and the

feeder, otherwise the Bias-Ts output voltage DC +12V will be grounded.


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2.4 Installation check

2.4.1 Device check

Table 7 Device check

Item Description

1 Stable and normal

2 Fixed horizontally

3Screws and nuts are screwed tightly, spring washers upon the flat washers,without missing flat washers and spring washers.

4 No break off in each part and cable.

5 Clean, no smear or dust.

6Connections between metallic configurations are reliable, assuring thereliable electric connectedness.

2.4.2 Cable checkTable 8 Cable Installation Check

Item Description

1 The connection of the cable is stable, no loosed or damaged

2 The cable sheathing shouldnt be damaged.

3 Grounding cable is reliable

4Cables are connected well, keeping the cable loose if it needs curve. Nocrossover between cables, and the cables should be bundled together forthe same direction.

5 Dont tense the cable in curving place, the curving radius of the cableshouldnt less than twenty times of the cables diameter.

2.5 System test

Test the system after the device was installed and checked.

Test steps for GSM multi-carriers booster:

z Startup testing: power setting, VSWR testing

z Effect testing: DT/CQT testing

z Region optimize: base on the OMC-R statistic data, adjusting the base

stations physical parameter, regional parameter and switch parameter. Sothat the system can work with the best effect.

Test flowing chart is as Figure 16:


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Test data before installation

Test data after installation

Best effect?

Compare the test data

Test process end

System Optimize

Test Start

Document management

OME statistic

DT test statistic

CQT test statistic

BTS coverage range

OME statistic

DT test statistic

CQT test statistic

BTS coverage range

Figure 16 System Testing Flow


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Chapter 3- Manitenances and Managements

16

3 Maintenances and Managements

Multi-carrier booster can be managed by LCD on the cabinet. This chapter describes the

management and maintenances of the system.

3.1 System maintenance

3.1.1 Routine maintenance

Booster provides the following protection functions: overpower protection, over-temp

protection, loop fail protection, reverse power protection, DC fail protection, etc. In

protection statements, booster will work in by-pass statement and send out alarm signal.

Generally, manual maintenance is not required. Routine check every season or every half

year is sufficient, including:

z Check if the pilot lamps of booster and power amplifier are normal, and if the

alarm light is on.

z Check if fans work normally.

z Check the signal around the BTS by using the mobile telephone.

z If any abnormity be found out, examine the system and make records.

3.1.2 Pilot lamp

1.Booster has 8 pilot lamps for moni toring and alarm, as the following figure:

Figure 17 Pilot Lamps & LCD


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Pilot lamp specification is shown as chart 3

Table 9 Specification for pilot lamp

Item Label Color State Specification

Green light Power supply works normally1

PWR

-Power pilot lamp - dark No power supply

Green light Power amplifier works normallyRed light Power amplifier failure2

PA1/PA2

-Power amplifier pilot lamp

- dark No power amplifier setting

Green Light Low noise amplifier works normally

Red Light Low noise amplifier failure3

LNA1/LNA2

-Low noise amplifier pilotlamp

- dark No low noise amplifier setting

Green light Tower mounted amplifier works normally

Red light Tower mounted amplifier failure4

TMA1/TMA2

-Tower mounted amplifierpilot lamp

- dark No Tower mounted power supply

Green spark System working normally5

WORK

-System working pilot lamp Red spark System working failure

2. MCPA unit have 3 pilot lamps, as the following f igure:

Figure 18 Pilot lamps for power amplifier

The alarm of MCPA unit includes: over-temp alarm, over-drive alarm, low gain alarm,

VSWR alarm, over VSWR alarm, over voltage alarm. The pilot lamps are shown as chart 2:

Table 10 Specification for power amplifier pilot lamps

Item Label Color State Specification

MAJOR ALM Red light

MINOR ALM Yellow Dark1

RF ON Green Dark

Power amplifier alarms and beshuted down

MAJOR ALM Red Dark

MINOR ALM Yellow Light2

RF ON Green Dark

Power amplifier alarms andworks

MAJOR ALM Red Dark

MINOR ALM Yellow Dark3

RF ON Green light

Power amplifier works normal


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3.2 Device management

There are 3 operating keys in the LCD, UP, Down, Enter, whose function is as the

following:

z UP----Return to main page

z DOWN----Roll option items

z ENTER----Confirm

3.2.1 In waiting statement

In waiting statement, LCD is turned off. When any key was pressed, LCD is on and get into

protection statement, which displays:

HIGH POWER BOOSTER

3.2.2 In protection statement

In protection statement, when any key be pressed, LCD displays management main page:

z PA STATUS

z MS STATUS

z CONTROL

The specification of them is:

z PA STATUS ---- Status of power amplifier

z MS STATUS ----Status of system

z CONTROL---- Power amplifier replacement & control startup

Use DOWN to choose PA STATUS/ MS STATUS/ CONTROL, use ENTER to get into the

selected item

3.2.3 Status descriptions

1. PA STATUS- power amplifier status

Screen 1:

z PA ADDR :* (Power amplifier address)

z LINK: /OK/ERR (Communicate link OK/ERR)

z RF for: **.* dBm (Forward power)

z

RF rev: **.* dBm (reverse power)Screen 2:


z RFin: **.*dBm (Input power)

z VSWR:*.**

z Temp: **.*C (Temperature for power amplifier)

Screen 3:


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z Power: **.*V (Power supply for Power amplifier)

z STATUS: RUN/STOP (Power amplifier state: RUN/STOP)

z ALARM: NO/ OV_TMP/OV_POW/OV_DRV/DEVICE / VSWR

/OV_VSW/ OV_VOL ( Alarm for power amplifier)

Specification for power amplifier alarm

Table 11 Specification for power amplifier alarm

Alarm parameter Specification

NO No alarm

OV_TMP Over temperature alarm

OV_POW Over power alarm

OV_DRV Over drive alarm

DEVICE Low gain alarm

VSWR VSWR alarm

OV_VSW Over VSWR alarm

OV_VOL Over voltage alarm

Notes: Press Enter key to select the power amplifier address after get into the

PA STATUS

2. MS STATUS ---- System status

Screen 1:

z STATUS OK/ALARM (System working status)

z PA1 RUN/BYPASS (Power Amplifier 1 working status)

z PA2 RUN//BYPASS (Power Amplifier 2 working status)

z Temp: **.*C ( Environment temperature)

Screen 2:

z UP1 STA: /OK /ERR (Uplink 1 status)

z DO1 STA: /OK /ERR (Downlink 1 status)

z UP2 STA: /OK /ERR (Uplink 2 status)

z DO2 STA: /OK /ERR (Downlink 2 status)

Screen 3:

z LNA1: ***mA /NULL/OK /ERR (Low noise amplifier 1 working

current and status)

z LNA2: ***mA /NULL /OK /ERR (Low noise amplifier 2 working

current and status)

z TMA1: ***mA /NULL/OK /ERR (Tower Mounted Amplifier 1 working

current and status)


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z TMA2: ***mA /NULL/OK /ERR (Tower Mounted Amplifier 2 working

current and status)

Screen 4:

z VSWR1: *.**

z VSWR2: *.**

z PWR1: /NULL /OK /ERR (Power unit 1 working status)

z PWR2: /NULL /OK /ERR (Power unit 2 working status)

Screen 5:

z LNA1 GAIN: **

z LNA2 GAIN: **

z PA1 ATT: ** ( Power amplifier 1 attenuation value)

z PA2 ATT: ** ( Power amplifier 2 attenuation value)

Screen 6:

z FAN1 STA: **/OK /ERR ( Fan1 rotate speed and status, unit:

circle/minute)


circle/minute)


circle/minute)


circle/minute)

Notice:

1. Status description: OK- working normal; ERR- working fault;

2. LNA1/LNA2/TMA1/TMA2/PA1/PA2 will show NULL when they havent be set.

3. PWR1/PWR2 will show NULL when power unit havent power output

3. CONTROL--- Power amplif ier reset and run

Screen 1:

PA ADDR :* (Power amplifier address, the address could be selected by

using DOWN key)

1. RESET (Power amplifier reset)

2. Run (Power run)

3. RETURN (Return to main page)


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3.2.4 Alarm scope setting

Generally, the alarm scope settings are factory set. User neednt to reset the scope. Alarm

scope referential value is following:

Table 12 Power amplifier alarm limit

Item Device Alarm Scope

1 TMA1/TMA2 Over current Upper limit:200mA, Down limit:70mA, Referential current:150mA

2 LNA1/LNA2 Over current Upper limit:98mA, Down limit:42mA, Referential current:70mA

3 FAN Fan rotate speed Upper limit:4000, Down limit:1000

4 PA1/PA2 Over power Power amplifier shut down power value:53dBm, over powerrestart 52dBm.

5 PA1/PA2 Over temperature 95 , over temperature alarm and shut down power amplifier.Over temperature restart: 75

6 PA1/PA2 Over VSWR Over VSWR alarm and shut down: 3.5, over VSWR restart :2.0

3.2.5 Parameter Setting

Figure 19 Pilot lamps & LCD

1.ANT0 Por t Output power sett ing for TMA

Table 13 DC +12V Port Output power setting for TMA

Item Label Switch Specification

ON DC +12V port (TMA1) output DC +12V1 TMA1 +12V

OFF DC +12V port (TMA1) no power output

ON DC +12V port (TMA2) output DC +12V2 TMA2 +12V

OFF DC +12V port (TMA2) no power output


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2. Low noise amplifier gain setting

Shown as Figure19, S1 and S3 are 4 bits 8421 code switch, switch up for 1 and down

for 0. The order of the number is 8 - 4 - 2 - 1

Table 14 Low noise amplifier gain setting

Item Label Description Number Scope

1 S1 LNA1 gain setting 0~15 Gain adjust scope:0~15dB

2 S3 LNA2 gain setting 0~15 Gain adjust scope:0~15dB

For example, the setting numbers of Figure 19 are shown as the table:

Table 15 Example number for low noise amplifier gain setting

Item Label Switch number Description

1 S1 6 LNA1 Gain:6dB

2 S3 9 LNA1 Gain:9dB

3. Power amplifier attenuation setting

Shown as Figure19, S2 and S4 are 4 bits 8421 code switch, switch up for 0 and down

for 1. The order of the number is 8 - 4 - 2 - 1

Table 16 Power amplifier attenuation setting

Item Label Description Number Scope

1 S2 PA1 attenuation setting 0~15 Attenuation adjust scope:0~13dB

2 S4 PA2 attenuation setting 0~15 Attenuation adjust scope:0~13dB

For example, the setting numbers of Figure 19 are shown as the table:

Table 17 Example number for power amplifier attenuation setting

Item Label Switch number Description

1 S2 6 PA1 Attenuation:6dB

2 S4 10 PA2 Attenuation:10dB

3.2.6 Alarm indication port specification

The alarm indication socket is shown as Figure 20, it is DB9 socket. The pin 1 and pin 2 will

be short circuit when the system is alarm, and the pin 1 and pin 2 will be open circuit when

the system is normal.

Figure 20 Alarm indication port


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Chapter 4 Technical Specification

23

4 Technical Specif ication

BMB0900 Multi-Carrier booster technical specification

RX Characteristics (per sector) Specification

Frequency Range 890 915MHz

Instantaneous Bandwidth 25MHz

Max Gain over frequency and temperature 121 dB

Adjustable Gain Range 0~12dB

Noise Figure 1.8dB(Typical)

Output 1dB Compression (max. Gain) +12dBm

Output IP3 (max. Gain) +23dBm

Return loss(VSWR) 14dB (1.5:1)

TX Characteristics (per sector) Specification

Frequency Range 935 960MHz

Instantaneous Bandwidth 25MHz

Number of Carriers 8, 12, or 16 carriers

Output Power

Single MCPA system Max average power:180W

2 carriers: 80W / carrier


Double MCPA system Max average power:360W





Input Power 30~43dBm

Output Power Dynamic Range 10dB

Gain 3 - 25dB(+/-0.5dB)

Adjustable in 1dB step

Spectrum Masks and Spurious Emissions FCC compliant

System Characteristics (per sector) Specification

DC Supply Voltage -40VDC ~ -56VDC

Return loss(VSWR)

BTS Ports

Antenna Ports

14dB (1.5:1)

14dB (1.5:1)

Forward Power Detection TX 30dBm ~ 50dBm

Reverse Power Detection TX 30dBm ~ 50dBm

Monitor & Control (LCD and Keypad) Forward Power, Reverse Power, Temp, LNA

Conditions (for both), PA Conditions, TX Gain

Setting, RX Gain Setting, DC Voltage


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Chapter 4 Technical Specification

Alarm & Protection (Form C type) Overpower Shutdown, Over Temp Shutdown,

Loop Fail Shutdown, Reverse Power Shutdown,

DC Fail Shutdown

Environmental Characteristics Specification

Indoor unit

Operating Temperature Range -20C ~ +55C

Cold Start Temperature -40C

Storage Temperature ETS 300 342-3

Humidity 150 000 hours

Outdoor unit

Operating Temperature Range -40C ~ +65C

Waterproof IP67

Lightning Protection 8/20us, 10kA Pulse

EMC ETS 300 342-3

MTBF 500,000 hours

Mechanical Characteristics SpecificationIndoor unit

Material Steel& Aluminum Frame

Weight 75Kg

DimensionsH x W x D 800mm x 330mm x 600mm

Connectors

BTS Ports

ANT Ports

USB Port

7/16 DIN female

7/16 DIN female

Standard USB connector

Fan 9 Fans per 3 sector system

Outdoor unitMaterial Aluminum housing

Weight 8.5Kg

DimensionsH x W x D 290mm x 200mm x 85mm

RF Connectors (BTS ANT) 7/16 DIN female

Options Specification

Number of Sectors 1,2, or 3 sectors

Power Input 220VAC, 110VAC, -48VDC

bravo tech bmb0900 booster user manual

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