Bravo Tech BMB0900 Booster User Manual
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Transcript of 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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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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Chapter 2- System Installation
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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
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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 PA ADDR :* (Power amplifier address)
z RFin: **.*dBm (Input power)
z VSWR:*.**
z Temp: **.*C (Temperature for power amplifier)
Screen 3:
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z PA ADDR :* (Power amplifier address)
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)
z FAN2 STA: **/OK /ERR ( Fan2 rotate speed and status, unit:
circle/minute)
z FAN3 STA: **/OK /ERR ( Fan3 rotate speed and status, unit:
circle/minute)
z FAN4 STA: **/OK /ERR ( Fan4 rotate speed and status, unit:
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
4 carriers: 35W / carrier
Double MCPA system Max average power:360W
4 carriers: 80W / carrier
8 carriers: 35W / carrier
12 carriers: 18W / carrier
16 carriers: 12W / carrier
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