ScalableSwitching Solutions

Enabling

Wireless Data Networks

TM

Inefficient

DCS Growthis the Problem…

The unprecedented growth of wireless services in North America is well documented.Cellular telephones, once considered an extravagance, are widely used today. Monthly usage isat an all-time high and power users are also using their phones for additional Personal DataAssistant (PDA) functionality. Other users are taking advantage of wireless services to maintainconstant connections to e-mail and the Internet using 3G technologies, and they are eagerlyawaiting the adoption of new WiFi and WiMAX standards to enhance broadband wirelessconnectivity. Our new wireless world will spawn a host of innovative companies that willdevelop new applications and services that we wouldn’t have dreamed of just ten years ago.

Unfortunately, this spectacular growth has also exposed a weakness in the current wirelessinfrastructure. Wireless carriers currently rely on large, multi-rack Digital Cross-connect Systems(DCSs) located within a Mobile Switching Center (MSC) to switch circuits between individualcell sites, the switch and the backbone network. These devices are capable of groomingsubstantial amounts of traffic, which makes the DCS one of the most critical, but expensivedevices in a carrier’s network.

Although today’s DCS solutions were designed with massive switching requirements in mind,few MSCs require this capacity today, but many will in the future. As a result, wireless carriernetwork planners must determine where they think the largest service growth will occur andforecast switching requirements far into the future. Wireless carriers accepted the high power,space and cost requirements of stripped-down DCS variants because no other solutions wereavailable. Today, these carriers are discovering that growing their DCSs to handle increasingtraffic demands is not as easy or cost-effective as initially promised. Frequent softwareupgrades and ongoing maintenance issues are costly and labor intensive. Adding extracapacity can be a time-consuming and complex process.

The high cost of a DCS has forced most remote Base Station Controller (BSC) sites and manyMSCs to simply manage without one. The resulting DS1/DS3 multiplexing equipment andmanual cross-connections by patch cords have created a cabling nightmare and addedthousands of potential failure points to the network.

LEC Central Office

Carrier 1

Carrier 2

Mobile Switching Center

4500

MSSP

4500

MSSP

4500

MSSP

HSX6000

Provides Ring Termination

and 3/1Grooming

Provides 1/0Grooming

DS1

DS1

DS1

4500

MSSP

Legacy DCS Switching Solutions

and PLANNING RISKSRemaining competitive in the dynamic wireless world requires agility and cost-containment.Withthese requirements in mind, Fujitsu has created the highly-flexible FLASHWAVE 4500 MultiserviceSwitching Platform (MSSP), a next-generation transport switching solution that offers the benefitsof a 300G DCS without the scalability issues that hinder other solutions.This evolutionary MSSPcan be justified for a wide variety of switching requirements in MSCs of all sizes, matching capitalinvestment with today’s traffic demands and minimizing planning risks.

Service providers can start with a single-shelf FLASHWAVE 4500 configuration with a 45G or 70G STS switch fabric and 20 interface slots to meet the traffic demands in smaller MSCs.Later, when traffic demand grows, the MSSP switch fabric can be added to allow a single shelf to offer 100G service capacity across the 20 interface slots. When additional interface capacity isrequired, a second and third shelf can be added to expand the system to 40 interfaces/200Gcapacity and 60 interfaces/300G capacity, with future expansion plans to support up to sixshelves and 120 interfaces/600G capacity. Three shelves fit in a single rack and all upgrades arenon-service-affecting, making this the easiest multi-shelf architecture upgrade available.

All electrical and optical service interfaces from DS1 to OC-192, including next-generation10/100Base-T and Gigabit Ethernet, are supported in the flexible interface slots, simplifyingsparing and planning. With a host of optical connection options available with theFLASHWAVE 4500 MSSP, you can finally make the all-optical MSC a cost-effective reality.

If cross-connections at the DS1 level are required, optional VT1.5 switch fabric cards allow over20,000 DS1 circuits to be switched between interfaces. Cross-connections at the DS0 level arealso possible with the addition of an HSX 6000 shelf. Optional DS3 transmux cards can pack DS1sfrom any interface into a DS3, which can be dropped locally as an electrical signal or insertedinto any optical facility. Up to 432 DS3 transmux signals can be supported within a three-shelfMSSP system, ending the cabling hassles and reliability issues often associated with externalM13 multiplexing equipment.

Complemented by the NETSMART® 500 craft user interface or NETSMART 1500 ElementManagement System (EMS), the FLASHWAVE 4500 platform makes scalable transport switching a simple and cost-effective option for today’s dynamic wireless networks.

SOLUTIONSMulti-Service Switching

Raise Network EFFICIENCY andCUSTOMER SATISFACTION

“

“

As market leader in the North American SONET market with a 28% share(per our research), Fujitsu has provided carriers with an alternative to theDCS that allows grooming capacity to be added as needed, lowering short-term capital expense and risk.

- Dana CoopersonGroup and Program Director, Optical Networking, RHK“

“The Fujitsu FLASHWAVE® 4500 platform is very threatening to competitorsbecause it has been deployed by many carriers, including several RBOCs. TheFLASHWAVE 4500 platform has the combination of capacity, optical port density,variety of interface support and Ethernet transport functionality that fits manycarrier requirements for metro edge systems.

- David DunphyPrincipal Analyst, Current Analysis

Raise OPERATING COSTS

“

“

A typical DCS deployment requires carriers to install acompletely new network element and incur a significantcapital investment, critical long-range planning expense andthe overhead of supporting yet another network element.

- Dana CoopersonGroup and Program Director, Optical Networking, RHK

ScalableTransport

SWITCHING

SOLUTIONis the

The FLASHWAVE 4500 Multiservice Provisioning Platform (MSPP) not onlyoffers an extremely cost- and space-effective solution for all traditionalSONET Add/Drop Multiplexer (ADM) applications, but also supportsadvanced functionality such as STS and VT1.5 switching, native Ethernettransport, digital video transport, and integrated DS3 Transmux.

You can easily expand any FLASHWAVE 4500 MSPP within your network tobecome a Multiservice Switching Platform (MSSP) that supports ultra high-capacity grooming applications that previously required an expensiveDigital Cross-connect System (DCS). Both configurations share a commonset of shelves, management units, service interfaces, and cabling tominimize the impact on existing operating systems, procedures and staff.

With 20 flexible service interface slots in the MSPP configuration and up to60 service interface slots in the MSSP configuration, the FLASHWAVE 4500platform supports dozens of terminal, linear and ring architecturessimultaneously, while integrating DWDM, broadband video, and the LocalArea Network (LAN) into the backbone network.

In addition, the FLASHWAVE 4500 platform eliminates your dependence onold, asynchronous, stand-alone M13 multiplexers and their associatedmaintenance-intensive, manual patch panel connections, providingsignificant reductions in operating expenses.

From wireline to wireless, telecom to cable, and all points in between,carriers have standardized on the FLASHWAVE 4500 platform for theirmission-critical transport and switching needs.

© Copyright 2005 Fujitsu Network Communications Inc. All rights reserved.FLASHWAVE® (and design)™ are trademarks of Fujitsu Network Communications Inc. (USA).FUJITSU (and design)® and THE POSSIBILITIES ARE INFINITE™ are trademarks of Fujitsu Limited.All other trademarks are the property of their respective owners.

Fujitsu Network Communications Inc.2801 Telecom Parkway, Richardson, TX 75082Tel: 800.777.FAST Fax: 972.479.6900us.fujitsu.com/telecom

WIRELESS/SB/2.0/07.05/PDF

Partner with an Industry LeaderTelecommunications carriers around the world have trusted Fujitsu with their critical optical networkingrequirements for over 20 years.With more than 320,000 network elements deployed, Fujitsu equipment setsthe standard for performance, reliability and carrier-grade quality. Our experience in building robust andscalable networks of all sizes for every major wireline carrier in North America puts Fujitsu in a unique positionto help wireless carriers create networking solutions that are optimized for a wide variety of situations.

Fujitsu is the Leader of the $1.39 Billion SONETAggregation Equipment Market in North America

Source: RHK

28%

* Note: Total number of DS1s per high-density interface

Maximum Number of Unprotected (Protected) Service Interfaces

TypePorts/Card

MSPPSingleStageMSSP

DoubleStageMSSP

TripleStageMSSP

DS1 (Integrated) 28 84 (84) 84 (84) 168 (168) 252 (252)

DS1 (High-Density) 168* 6720 6720 13,440 20,160

DS3/EC1 8 96 (96) 96 (96) 192 (192) 288 (288)

DS3 Transmux 12 144 144 288 432

OC-3/3c/STM-1 4 80 (40) 80 (40) 160 (80) 240 (120)

OC-12/12c/STM-4 4 80 (40) 80 (40) 160 (80) 240 (120)

OC-48/48c/STM-16 2 40 (20) 40 (20) 80 (40) 120 (60)

OC-192/192c/STM-64 1 4 (2) 10 (5) 20 (10) 30 (15)

10/100Base-T Ethernet 8 80 80 160 240

Gigabit Ethernet 2 40 40 80 120

DVB-ASI 8 40 40 80 120

Switching Capacity

Specification MSPPSingleStageMSSP

DoubleStageMSSP

TripleStageMSSP

Interface Capacity 70 Gbps 100 Gbps 200 Gbps 300 Gbps

STS-1 Cross-Connects1344 x 1344

(70 Gbps)5760 x 5760(300 Gbps)

5760 x 5760(300 Gbps)

5760 x 5760(300 Gbps)

VT1.5 Cross-Connects5376 x 5376

(10 Gbps)10,752 x 10,752

(20 Gbps)10,752 x 10,752

(20 Gbps)10,752 x 10,752

(20 Gbps)