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CPORTMEDIA-FS

更新时间： 2024-10-13 23:43:27

品牌	Logo	应用领域
其他 - ETC		栅异步传输模式 ATM
页数	文件大小	规格书
4页	149K
描述
Application Fact Sheet: Access Media Gateway with IP and ATM Internetworking

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Freescale Semiconductor, Inc.

Application Fact Sheet

ACCESS

MEDIA GATEWAY WITH IP

AND ATM INTERWORKING

KEY BENEFITS

OVERVIEW

The specific design challenges for media gateways

include:

With the growth in data network traffic driving major

changes in public networks, the convergence of existing

voice traffic onto the data network infrastructure prom-

ises significant benefits (such as reduced costs and sim-

plified network management) for carriers and

enterprises alike. Media gateways and switches that

support the integration of Voice over Internet Protocol

(VoIP), legacy public switched telephone network (PSTN),

and ATM networks make this convergence possible.

•

Scalable implementation

of high-performance and

high density voice/data

capabilities, from 2000 to

8000 voice channels at

G.711, for a wide range of

applications

• Accommodating increasing numbers of voice (or fax

and modem) circuits per slot within a specific net-

working device.

• Supporting the increasing number of different net-

work interfaces and speeds required, ranging from

channelized T1/E1 lines through OC-12 SONET and

Gigabit Ethernet interfaces.

•

Single “platform”

architecture for both IP-

based and ATM oriented

systems, including

interworking between

them

• Adapting to the number of different protocols used

(such as ATM AAL-2/AAL-5, VoIP/RTP, Packet-over-

SONET/PPP, MPLS, and so on), even as the protocol

standards evolve and improve.

Media gateway functions are being implemented in

standalone devices, or as modules in multi-service

switches, edge routers, remote access concentrators,

or PSTN switches. In all cases, media gateways in share

common hardware and software design challenges.

•

True, fine-grained,

multiservice support for

high numbers of users

• Managing Quality of Service (QoS) to ensure prioriti-

zation of latency-sensitive traffic, such as voice.

Simplified line card

• Providing the flexibility to add new features and

functions through software as market demands

dictate in the future.

design with lower power

and board real estate

plus ability to leverage

single-vendor solution

DESIGN CHALLENGES

Media gateway implementations are complicated by the

wide variety of technologies that make up existing net-

works. These include the circuit-switched PSTN, ATM

and Frame Relay based public data networks, and the IP-

based Internet, all of which may be carried over the

same SONET transport network.

MOTOROLA SOLUTION

Motorola offers complete solutions for all aspects of

media gateway and switch implementations. This

includes the StarCore Digital Signal Processors (DSPs)

required to convert and compress TDM voice circuits into

packet or cell-based flows, the C-Port network proces-

Functions required of media gateways typically include

the conversion (and compression) of Time-Division-

Multiplexed (TDM) voice circuits onto ATM networks

using a variety of adaptation protocols (AAL-0, AAL-1,

AAL-2 and AAL-5), or onto packet-based networks using

IP (including RTP), Frame Relay, or extensions of both.

Voice switches that support the switching of voice cir-

cuits among the various network interfaces may require

interworking between different protocols (such as

between ATM and IP-based networks) as well.

™

sors (NPs) required to terminate or switch the packet or

cell-based circuits, and the PowerPC host processors

required to implement the control functions that manage

each voice connection. The network processing function

is the focus of this Application Fact Sheet.

Motorola’s C-Port family, including network processors,

traffic management coprocessors, and interface adap-

tors, provides the flexibility to support the wide range of

protocols required for today’s media gateway implemen-

tations. The internal processing resources of the C-3e NP

For More Information On This Product,

Go to: www.freescale.com

12 3 4

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与CPORTMEDIA-FS相关器件

型号	品牌	获取价格	描述	数据表
CPORTMSP-FS	ETC	获取价格	Application Fact Sheet: Access/Edge Multiservice Platform ATM/IP/FR Line Card
CPP-050-SE3-G	3M	获取价格	Board Connector, 5 Contact(s), 1 Row(s), Male, Straight, 0.1 inch Pitch, Solder Terminal,
CPP-061D-T-S2-T	3M	获取价格	HEADER CONNECTOR,PCB MNT,RECEPT,6 CONTACTS,PIN,0.1 PITCH,PC TAIL TERMINAL,BLACK
CPP-061D-T-SE2-G	3M	获取价格	HEADER CONNECTOR,PCB MNT,RECEPT,6 CONTACTS,PIN,0.1 PITCH,PC TAIL TERMINAL,BLACK
CPP-061D-T-SE2-T	3M	获取价格	HEADER CONNECTOR,PCB MNT,RECEPT,6 CONTACTS,PIN,0.1 PITCH,PC TAIL TERMINAL,BLACK
CPP-061D-T-SE3-G	3M	获取价格	HEADER CONNECTOR,PCB MNT,RECEPT,6 CONTACTS,PIN,0.1 PITCH,PC TAIL TERMINAL,BLACK
CPP-061D-T-SE3-T	3M	获取价格	HEADER CONNECTOR,PCB MNT,RECEPT,6 CONTACTS,PIN,0.1 PITCH,PC TAIL TERMINAL,BLACK
CPP-080-S2-G	3M	获取价格	HEADER CONNECTOR,PCB MNT,RECEPT,8 CONTACTS,PIN,0.1 PITCH,PC TAIL TERMINAL,BLACK
CPP-080-S2-T	3M	获取价格	HEADER CONNECTOR,PCB MNT,RECEPT,8 CONTACTS,PIN,0.1 PITCH,PC TAIL TERMINAL,BLACK
CPP-080-SE1-G	3M	获取价格	HEADER CONNECTOR,PCB MNT,RECEPT,8 CONTACTS,PIN,0.1 PITCH,PC TAIL TERMINAL,BLACK

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