BS-240 / BS-241Base Transceiver Stations

BS-240/241 is the new future-proof

evolution of Siemens BTS hard-

ware. Highlights are 24 TRX in

3 racks with 8 TRX each, signifi-

cantly reduced volume per TRX,

and a future-oriented platform for

new GSM features. Siemens latest

base stations are already prepared

for UMTS.

Product Profile

Increasing demands for highercapacity are met by BS-240/241through reduced volume and anexpanded number of 24TRX in3 racks with a modularity of 8 TRXper rack.This also makes theBS-240/241 a powerful dualbandbase station for GSM900 andGMS1800, as well as for GSM900and GSM1900.

A full spectrum of combining equip-ment means high output power anda minimized number of antennas forall cell configurations. High receiversensitivity is also guaranteed.A future SDMA option is planned.The modular architecture and theflexible internal structure with datarates of up to 2MBit/s enables theBS-240/241 to provide new GSMfeatures such as EDGE.This platformensures that network evolution is assmooth as possible.The use of latesttechnology reduces power consump-tion and improves reliability.

Customer Benefits

Compatibility with existing SBSensures easy integration into thealready installed infrastructure

Possible site configurations of upto 72TRX/site prepares forincreasing capacity requirements

Highest reliability thanks toredundancy for all core modules

Reduced investment costs dueto integrated Abis cross connect(8 PCM lines)

Fast network rollout: approximately50% fewer sites required due tohigh RX sensitivity and high outputpower

BS-240/241 can consist of upto 8 racks: 1 base rack,1 or 2 extension racks and upto 5 service racks

Pre-installed commissioningreduces installation time to lessthan one hour

No service interruption for rackextension orTRX exchange

Smart antennas (beam switching)option increases capacity

High site efficiency due to reducedvolume of 54 liters/TRX and smallfootprint

Architecture prepared for futureGSM features (e.g. EDGE): functional, modular internalstructure, highly flexible signalprocessing capacity, exchangeableRF frontend

Compatibility

The BS-240/241 are compatible withthe existing Siemens BS-20/21/22 andBS-60/61 products. An easy expansionof installed networks with the newBS-240/241 is possible. Softwarefeatures will run independently onall BTS types.

AC

OM

#0

AC

OM

#1

AC

OM

#2

AC

OM

#3

CU

#0

CO

BA

#0

CO

SA

#0

CO

BA

#1

CO

SA

#1

CU

#1

CU

#4

CU

#5

CU

#2

DIA

MC

O #

0

DIA

MC

O #

1

CU

#3

CU

#6

CU

#7

Technical Data BS-240 Indoor applicationCarriers per rack 8Height x width x depth 1600 x 600 x 450 mmVolume net 432 lWeight 210 kgOperation acc. to ETSI 3.1ETemperature range 5 C to + 55 CPower supply 48 V DC; 230/400 V AC or 110/207 V ACMax. power consumption 1.3 kWOutput power GSM900 60 WOutput power GSM1800 40 WOutput power GSM1900 40 WBatterie backup available

Fig.: Front view of BS-240

Fig.: BS-240

AC

OM

#0

AC

OM

#1

AC

OM

#2

AC

OM

#3

CU

#0

CO

BA

#0

CO

SA

#0

CO

BA

#1

CO

SA

#1

CU

#1

CU

#4

CU

#5

CU

#2

DIA

MC

O #

0

DIA

MC

O #

1

CU

#3

CU

#6

CU

#7

Plinth

Technical Data BS-241 Outdoor applicationCarriers per rack 8Height x width x depth 1750 (incl. plinth) x 700 x 650 mmVolume net 705 lWeight 265 kgOperation acc. to ETSI 4.1ETemperature range(including solar radiation) 45 C to + 50 CIntegrated Power Supply 230/400 V AC or 110/207 V ACMax. power consumption 1.85 kWOutput power GSM900 60 WOutput power GSM1800 40 WOutput power GSM1900 40 WBattery backup availableMicrowave hardware available

Feature Overview

Frequency bands: GSM900/GSM-RE/GSM1800/GMS1900

Dual band(GSM900/1800 and GSM900/1900in the same BTS rack)

Site configurations up to72 TRX/site, up to 24 TRX/cell and 36 cells/site

High power amplifier (60W) and up to 116 dBm RX sensitivity

Core redundancy and AC/DC redundancy

Duplex combiner Filter combiner Filter combiner

with High Power Duplexer (HPDU)

Tower Mounted Amplifier(TMA) with intelligent reliabilitymanagement

Smart antennas(beam switching) option

Integrated Abis cross connect(8 PCM24/30 lines)

Integrated NTPM and -waveequipment, optional battery backup in a service rack

High flexibility of site configurationsthanks to service rack

State-of-the-art technology,environmentally friendly, recyclable

48 external alarms, 8 site outputsper rack

Rack extension without serviceinterruption

Hot plug-in ability of TRXs Short software upgrade time Improved MTBF

Fig.: Front view of BS-241

Fig.: BS-241

!Contact us!Visit our website athttp://www.siemens.com/ic/networks/ca

Abbreviations

AC Alternating CurrentACOM Antenna COMbiningBS Base StationBTS Base Transceiver

StationCOBA COre BAsic moduleCOSA COre SAtellite moduleCU Carrier UnitDC Direct CurrentDIAMCO Diversity Amplifier

Multi COuplerEDGE Enhanced Data rates

for GSM EvolutionETSI European

TelecommunicationsStandard Institute

GSM Global System forMobile Communication

GSM-RE GSM RailwayExtension

HPDU High Power DUplexerMTBF Mean-Time Between

FailuresNTPM Network Termination

Primary MultiplexPCM Pulse Code ModulationRF Radio FrequencyRX ReceiverSBS Siemens Base Station

SystemSDMA Space Division

Multiple AccessTMA Tower Mounted

AmplifierTRX TransceiverUMTS Universal Mobile

TelecommunicationsSystem

COPYRIGHT Siemens AG 2000 Information and Communication Networks Communication on Air Hofmannstr. 51 81359 Munich Germany

Order No. A50001-N3-P43-4-7600 Printed in the Federal Republic of Germany MR M625 SIE_013_00 PA 04005.

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Technical Data RF BS-240/241

GSM900 Prim. Band Ext. BandUplink range 890-915 MHz 880-890 MHzDownlink range 935-960 MHz 925-935 MHz

GSM-RE Frequency BandUplink range 876-901 MHzDownlink range 921-946 MHz

GSM1800 Frequency BandUplink range 1710-1785 MHzDownlink range 1805-1880 MHz

GSM1900 Frequency BandUplink range 1850-1910 MHzDownlink range 1930-1990 MHz