The Art of VersatilityThe Art of VersatilityUltra compact Single/Dual Card STM-1 Multiplexer

TransXpress SMA1K

TransXpress SMA1K briefly

SMA1K is a synchronous multiplexerthat offers an ultra compact solution foradd/drop or terminal applications inSDH networks. In addition, it satisfiesthe actual demand for broad-/narrow-band or packed-oriented time-criticalservices thus enabling the operator toquickly establish new revenue generat-ing services. SMA1K can thus reducecosts and guarantee a maximum offlexibility in network planning.

Due to the high level of integration, thefull multiplexer functionality is placedon a single card. Only one board isneeded to make the SMA1K work asan unprotected terminal multiplexer. Bysimply adding one card, the SMA1Kbecomes a fully protected add/dropmultiplexer. Sub-modules (daughterboards) can be fitted onto the maincards to allow easy extension of thetributary capacity up to 63x2 Mbit/s.

The SMA1K supports STM-1 aggregateline rate and is capable of drop/insert-ing 2Mbit/s, 34Mbit/s or 45Mbit/s, oreven 10/100 BaseT signals.The Ether-net interfaces allow the operator toeasily and cost-efficiently connectpacket-based data networks (e.g., IPnetworks) without having to deployadditional expensive third-party equip-ment such as switches or routers.

The SMA1K covers all basic core net-work applications and it is the perfectequipment for edge and corporate net-work applications due to its compact-ness and flexibility.The compact subrack design can bemounted in standard ETSI or 19" racks,as well as at customer premises, forexample, or in street-cabinets. Alsolocal exchanges can be managed with-out expenditure.

Top 10 features

SMA1K is a well-thought-out product,which is especially known for its versa-tility. It can be used as terminal oradd/drop multiplexer supporting multi-ple topologies, for instance ring,meshed and star configurations. Inaddition, all the following features areoffered in a very small physical design:

Ethernet 10/100BaseT ports (auto-sensing) and 45 Mbit/s ports forLAN-WAN and SONET interworkingSingle card multiplexer(STM-1 electrical or optical line inter-faces for intra-/short- and long-hauldistances) with on-board access to21x2Mbit/s and optional daughterboards with 42x2Mbit/s, 1x34 Mbit/s,1x45 Mbit/s or 2x10/100 BaseT portsFully non-blocking VC-12/-3 switchfor uni-, bi-directional or broadcastcross-connection with 100%add/drop capacity on 2Mbit/s levelVC-4 line-to-line cross-connectivityallowing Network Termination NT-1functionality for clear separation,supervision of carrier/carrier orcarrier/end-user network and domainbordersNear- and far-end VC-4 Tandem Con-nection Monitoring (TCM) for accuratequality of service (QoS) measure-ment Card protection for PDH and SDHtraffic handling modules, combinedwith extensive traffic protectionfeatures: linear MSP and path-pro-tection SNC/PSingle fiber operation with C1/J0byte processing in case of fiberinterruptionExternal synchronization, EOW,user data channel, BW7R style andexternal user alarmsIn-band remote NE control via VC-4POH with possibly of passing-through different operator's net-worksFull integration into SiemensTelecommunications NetworkManagement Systems

Siemens has gained extensive expe-

rience in building optical networks in

more than 100 countries.This wealth

of know-how, appreciated around the

globe, combined with our continuous

innovations, will ensure lasting

provision of state-of-the-art optical

networking solutions. Operators

around the world have placed their

trust in us.With its TransXpress pro-

duct portfolio, Siemens is the market

leader in SDH networking.

We are proud to introduce the

SMA1K series 3, another member of

the successful TransXpress family

and the key to a future-proof and

revenue-generating network.

Compact VersatilityCompact VersatilityTransXpress SMA1K

SMA1K

SMA1KVideo

IP

SMA1K

ATM

SMA1K

Video

IPATM

Video

ISDN/PBX

ISDN/PBX

Internet BackboneIP

IP

ISDN/PBX

Branch office

ISDN/PBX

Branch office

Branch office

CorporateHeadquarter

SMA1K

EWSD

SMA1KRS-DLU

SMA1K

FastLink

SMA1K

RS-DLU

Ethernet-based networks

SMA1K adds packet-switched data inter-faces to it's well-proven, reliable and flexi-ble SDH platform.The Ethernet interfaceallows the operator to easily and costeffectivly connect packet-based data net-works (e.g., IP networks) without deploy-ing additional expensive third-party equip-ment (e.g., switches or routers).

Geographically distributed LANs can beinterconnected inexpensively using sim-ple bridges.These bridges can be con-nected in pairs through point-to-point linkswhich are transparent for higher levelprotocols. In addition, bridges are easy toinstall (plug and play) and do not requirecomplex installation and managementroutines.SMA1K provides a highly cost-effectiveway of delivering leased line services tointerconnect LAN networks, as well asother corporate services, with additionalbenefits like SDH management and pro-tection facilities.

Versatile DeploymentVersatile DeploymentExtending the Boundaries of Your Network

Thanks to it's versatility, the SMA1K

represents a real multi-service network

element supporting a great variety of

network applications and configura-

tions. For instance, it can be deployed

as a terminal multiplexer or as an

add/drop multiplexer in point-to-point,

chains, ring or meshed topologies.

RS-DLU Remote Shelter - Digital Line UnitEWSD Digital Electronic Switching SystemFastLink Access System

The compact housing makes SMA1Kthe ideal choice for deployment eitherat customers' premises or in cabinets.

Network Control over large distances

To maintain low investment costs inlow density areas, for example in ruralareas, remote switching solutions canbe deployed. Groups of subscribers atlarger distances from the central officeswitch are connected via remote digi-tal line units installed in shelters.

These remote shelters (RS-DLU) canserve several hundred distant sub-scribers and can be interconnected tothe central switching network node(e.g. Siemens EWSD) through an STM-1 link provided by the SMA1K.

In a cellular environment as well, dis-tributed base station controllers (BSC)can be interconnected to the mobileswitching center (MSC) through a cost-effective SMA1K link.

These solutions cope with size andcost requirements while satisfying thecontinually increasing traffic volume.SMA1K is optimally designed as asolution where compactness, flexibilityand rapid installation are mandatoryattributes.

Network termination and access tocore networks

SMA1K is fully compatible with otherTransXpress products and can bedeployed as an access solution inpoint-to-point and ring configurations.

In addition to traditional access to corenetworks, SMA1K can be deployed asa network termination node to create aclear definition of each operator’s/cus-tomer’s responsibility. In the event ofnetwork fault, extensive performancemonitoring functionality, e.g., tandemconnection monitoring, ensure theexact QoS measurement and rapididentification of the section or sub-net-work in which the error occurred.TheSMA1K is also available in a specialmechanical arrangement for desktopand wall-mount installation in customerpremises as SMA1K-CP (dedicatedinformation available).

SMA1K-CP

Operator B

SMA1K

SMA1K

SDH Core

Transport Network

SMA1K

NT-1

NT-1

SMA1K

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

SMA1K

SMA1K

BTSBTS

BTS

BTS

BTS

BTS

PSTN

SMA1K

SMA1K

BSC

BSC

MSC

BSC

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

Reliability

SMA1K comprises state-of-the-art pro-tection mechanisms to guarantee high-est network availability.

1+1 MSP multiplex section protec-tion SNC/P path protectionPDH and SDH traffic handling cardprotection Switching matrix and synchroniza-tion sources protection

Extensive monitoring functionality, aswell as maintenance and diagnosticsfacilities ensure the reliability of thenetwork as a whole:

Near and far-end performancemonitoringUser configurable test loopsSelf monitoring and diagnosticfunctions

Flexibility

SMA1K is the matching network ele-ment for all network applications andtopologies, regardless of whether thenetwork structure is star-, bus- or ring-based. It can be configured as terminalor add/drop multiplexer and is thus theright choice for every topology.

Single card multiplexer with STM-1electrical or optical line interfaceCross-connectivity at VC-12, VC-3and VC-4 levelEthernet 10 BaseT or 100 BaseT(auto-sensing) ports2 Mbit/s, 34 Mbit/s or 45 Mbit/stributary portsUni-directional, bi-directional orbroadcast cross-connectionSingle fiber operationIntra-office, short- and long-hauldistancesTiming source from any 2Mbit/s orSTM-1 port, internal or externalclock reference

Efficiency

SMA1K is optimized for space-efficientinstallations within traditional ETSI/19"racks, street cabinets, or on customerpremises.

Very compact design - up to 12sub-racks in a ETSI rackLow power consumptionSimple and rapid installation In-band remote network elementcontrolFully compatible with all SiemensTransXpress network elementsNetwork craft terminal for smallnetworks managementComplete integration into SiemensTMN solution

Benefits by SMA1KBenefits by SMA1K

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

Bestell-Nr. A50001-N11-P34-1-7600 • Printed in the Federal Republic of Germany • ON SIE_640_00 PA 10002.

Sub

ject

to

avai

labi

lity

• R

ight

of

mod

ifica

tion

rese

rved

.

!Contact us!

visit our Website at www.siemens.com.br/optical-networks

Or send us a fax +49-89-722-41072

Abbreviations

ADM Add/drop MultiplexerATM Asynchronous Transfer

ModeBSC Base Station ControllerBTS Base Transceiver StationBw7R Constructive Siemens

Style 7REOW Engineering Order WireETS(I) European Telecommuni-

cation Standardization(Institute)

EWSD Elektronisches Wählsy-stem Digital (Digital Elec-tronic Switching System)

F Interface to local craftterminal

IEEE Institute of Electrical andElectronics' Engineers

ISDN Integrated Services Digi-tal Network

IP Internet ProtocolITU-T International Telecommu-

nication Union – tele-communication standardi-zation sector

LAN Local Area NetworkMSC Mobile Switching CenterMSP Multiplexer Section

ProtectionNE Network element

NT Network terminationPBX Private Branch ExchangePDH Plesiochronous Digital

HierarchyPOH Path overheadPSTN Public Switched Tele-

phone NetworkQ Interface to the TMNQoS Quality of ServiceRS-DLU Remote Shelter - Digital

Line UnitSDH Synchronous Digital

HierarchySMA1K Synchronous Multiplexer

add/drop, compactSMA1K-CP Synchronous multiplexer

add/drop, compact,customer premisesequipment

SNC/P Sub-network ConnectionProtection

SONET Synchronous OpticalNetwork

STM Synchronous TransportModule

TCM Tandem ConnectionMonitoring

TMN TelecommunicationManagement Network

VC Virtual ContainerWAN Wide Area Network