CompactnessCompactnessSingle-Board STM-1 MultiplexerTransXpress SMA1K-CP

The Art of

A Single Board Fits AllA Single Board Fits All

Siemens’ single-board STM-1 multiplexerSMA1K-CP is setting a new standard ofcompactness and flexibility.The highlevel of integration employed allows forimplementation of a fully functional ter-minal and add/drop multiplexer by a sin-gle laptop-size unit. Having one univer-sal type of network element supportanywhere from 2 Mbit/s to 100BaseTsignals over star, bus and ring topologiesguarantees a maximum of flexibility innetwork planning.The Ethernet interfaces allow the opera-tor to easily connect packet-based datanetworks (e.g., IP networks) in a cost-effective way without having to deployadditional expensive third-party equip-ment (switches or routers)

Due to the ingenious and optimizedhousing concept, SMA1K-CP is suitablefor rack and desktop installation as wellas wall-mounted applications.This highflexibility allows simple and rapid instal-lation in local exchange offices, streetcabinets and at customer premises.

Optical interfaces applicable for alldistances from intra-office to long-hauland the AC/DC converter with batterybackup supplement off its versatility.As is usual for all Siemens TransXpressSDH products, SMA1K-CP complies

with ITU-T and ETSI recommendationsand standards.This ensures operatorflexibility and interworking with existingand future SDH/SONET and IP equip-ment.

Top 10 features

The SMA1K-CP supports a wide rangeof system features to meet networkoperators’ requirements.Key features include:

Ethernet 10/100BaseT ports (auto-sensing) and 45 Mbit/s ports forLAN-WAN and SONET interworkingVC-12 and VC-3 switch granularity foruni-, bidirectional or broadcast cross-connectionVC-4 line-to-line cross-connectivity(Network Termination at STM-1 levelfunctionality NT-1)Near- and far-end VC-4 Tandem Con-nection Monitoring TCM for QoSmeasurementsingle-board STM-1 multiplexer withon-board access to 12 x 2 Mbit/sand optional daughter board with1x34 Mbit/s, 1x45 Mbit/s or2x10/100BaseT portslinear 1+1 MSP and SNC/P trafficprotection features

single fiber operation with C1/J0byte processingBw7R, external user alarms, externalsynchronization, V.11 user data channelsin-band remote NE control via VC-4 POHfull integration into Siemens’Telecommunications NetworkManagement System

TransXpress SMA1K-CP in brief

The TransXpress SMA1K-CP multiplexer family is part of a comprehensive

range of SDH products offered by Siemens, the market leader in SDH network-

ing.This new-generation, cost-effective and compact STM-1 multiplexer is

optimized to deliver a low to medium number of 2 Mbit/s and higher bitrate

services (34/45 Mbit/s and 10/100BaseT) to residential and business customers

including offices, business parks and Internet POPs.Thanks to its compactness,

SMA1K-CP is extremely well-suited for installation within cabinets and in

offices at customer premises.

Ethernet-based networks

TransXpress SMA1K-CP combinespacket-switched data interfaces withthe widely implemented and tested reliable and flexible SDH platform.The Ethernet interface allows the opera-tor to easily connect packet-based datanetworks (e.g., IP networks) in a cost-effective way without having do deployadditional expensive third-party equip-ment (e.g., switches or routers).Geographically distributed corporatenetworks can be interconnected in avery cost-effective way using simplebridges (plug and play).These bridgescan be easily connected in pairs throughpoint-to-point links that are transparentfor higher level protocols.TransXpress SMA1K-CP is a very econom-ic way of delivering leased line servicesto interconnect these LAN networksand providing other corporate services(e.g., voice and video), with additionalbenefits such as SDH managementand protection facilities.

Fiber-to-the-Business applications

TransXpress SMA1K-CP also offers ahighly cost-effective way of deliveringleased line service to small and medium-size businesses.In the access network, SMA1K-CP canbe installed at customer premises forfiber-to-the-business applications,enabling either star or ring configurations.The compact and versatile housing issuitable for rack, desktop and wallmounting in customer workplace envi-ronments.The SMA1K-CP also provides smoothand easy network evolution from PDHto SDH/SONET, as well as IP, with theadded benefit of network control throughmanaged SDH solutions.Improved quality and availability of net-work services for the subscriber andreduced operational costs for the networkoperator result in network solutions thatare far superior to existing PDH networks.

SMA1K-CP

SMA1K-CPVideo

IP

SMA1K-CP

ATM

SMA1K-CP

Video

IPATM

Video

ISDN/PBX

ISDN/PBX

IP

IP

ISDN/PBX

Branch office

ISDN/PBX

Branch office

Branch office

CorporateHeadquarter

Internet Backbone

SMA1K-CP

SMA1K-CP

SMA1K-CP

SMA1K-CP

SMA1K-CP

LocalExchange

WAN

Efficient and Flexible DeploymentEfficient and Flexible DeploymentExtending the Boundaries of Your SDH/SONET and IP Networks

Inter-connecting FTTC infrastructuresand wireless base stations

With bandwidth demand out-growingthe capacity available in today’s FTTCand wireless base station interconnec-tions, solutions are needed that can bothcope with size and cost requirementswhile satisfying the continually increasingtraffic volume created by applicationssuch as Internet, teleconferencing, tele-medicine, tele-education and others.The logical step would be to move tothe technology already used in the back-bone of regional transport networks.That technology is SDH and has provenefficient and reliable.

Both FTTC and cellular environment putnew physical demands on SDH equip-ment in terms of compactness andinstallation flexibility.These demandscannot be met by traditional systems.SMA1K-CP was designed for solutionswhere compactness and optimizedfunctionality are especially important.

It is particularly well suited for applica-tions where 2 Mbit/s and higher bitratesignals are distributed from the core toremote access units.

Network termination and access tocore networks

TransXpress SMA1K-CP is fully compat-ible with otherTransXpress productsand can be deployed as an access solu-tion in point-to-point and ring configura-tions.

Besides traditional access to core net-works, SMA1K-CP can be deployed asa network termination node to create a clear definition of each operator’s/customer’s responsibility.

In the event of network fault, extensiveperformance monitoring functionality,for instance, tandem connection moni-toring, guarantee exact QoS measure-ment and rapid identification of thesection or subnetwork in which theerror occurred.

SMA1K is also available with anextended number of 2 Mbit/s ports(dedicated information is available).

SMA1K-CP

SMA1K-CP

BTSBTS

BTS

BTS

BTS

BTS

PSTN

SMA1K

SMA1K-CP

BSC

BSC

MSC

BSC

SMA1K-CP

Operator B

SMA1K

SMA1K

SDH Core

Transport Network

SMA1K-CP

NT-1

NT-1

SMA1K-CP

OperatorA

SMA1K-CP

10/100 BaseT155 Mbit/s

34/45 Mbit/s12x2 Mbit/s

10/100 BaseT

155 Mbit/s

34/45 Mbit/s

63x2 Mbit/s

BTS Base Transceiver StationBSC Base Station ControllerMSC Mobile Switching CenterPSTN Public Switched Telephone Network

Flexibility

The SMA1K-CP is the matching networkelement for all network applications andtopologies, regardless of whether yournetwork structure is star-, bus- or ring-based.Configurable as terminal and add/dropmultiplexer, SMA1K-CP is the rightchoice for any topology.Features emphasizing its flexibility are:

single-board multiplexer with STM-1electrical or optical line interfacescross-connectivity at VC-12, VC-3 andVC-4 levelEthernet 10/100BaseT (autosensing),2 Mbit/s, 34 Mbit/s or 45 Mbit/s tributary portsexternal user alarm in-/output andV.11 user data channel accesstiming source from any 2 Mbit/s orSTM-1 ports, internal or external ref-erencesoptional AC/DC converter modulesingle network element suitable forrack, wall and desktop application

Reliability

SMA1K-CP comprises all state-of-the-art protection mechanisms. For eachapplication, the best solution for protec-tion can be chosen to guarantee high-est network availability:

1+1 multiplex section protectionSNC/P path protectionbattery backup to protect againstmains power failure

Extensive monitoring functionality andmaintenance and diagnostics facilitiesensure the reliability of the network asa whole.

Tandem connection monitoring atVC-4 levelNear- and far-end performance moni-toringUser configurable test loopsSelf-monitoring and diagnosticfunctions

Efficiency

The SMA1K-CP is optimized for space-efficient installations within street cabi-nets and on customer premises:

very compact design – one heightunit onlylow power consumptionsimple and rapid installationsingle fiber operationinband remote network elementcontrolmaintenance cost savings throughremote software downloadnetwork craft terminal with networkview for small networks full integration into Siemens’Telecommunication Network Man-agement System

Your SMA1K-CP BenefitsYour SMA1K-CP Benefits

COPYRIGHT© • Siemens AG 2000 • Information and Communication Networks • Hofmannstr. 51 • 81359 Munich • Germany •

Bestell-Nr. A50001-N11-P16-2-7600 • Printed in the Federal Republic of Germany • ON SIE_636_00 PA 10002.

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Abbreviations

AC/DC Alternating current/directcurrent

ATM Asynchronous TransferMode

BSC Base Station ControllerBTS Base Transceiver StationBw7R Mechanical Design 7RCP Customer premises ETSI European Telecommuni-

cations Standards InstituteF Interface to local craft

terminalFTTC Fiber-To-The-CurbIEEE Institute of Electrical and

Electronics' EngineersIP Internet ProtocolISDN Integrated Services Digital

NetworkITU-T International Telecommuni-

cations Union – Telecom-munications Sector

LAN Local Area NetworkMSC Mobile Switching CenterMSP Multiplex Section Protec-

tion

NE Network elementNT Network terminationPBX Private Branch ExchangePDH Plesiochronous Digital

HierarchyPOH Path OverheadPSTN Public Services Telephone

NetworkQ Interface to the TMNQoS Quality of ServiceSDH Synchronous Digital

HierarchySMA1KSynchronous Multiplexer

add/drop, compactSNC/P Subnetwork Connection

ProtectionSONET Synchronous Optical

NetworkSTM Synchronous Transport

ModuleTCM Tandem Connection

MonitoringTMN Telecommunication Man-

agement NetworkVC Virtual ContainerWAN Wide Area Network