rfgw-10 (rf gateway) visión general

© 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 1

RFGW-10(RF Gateway)

Visión General


Qué es RFGW-10?

RFGW-10 es una plataforma Carrier Class Universal Edge QAM diseñada para soportar DOCSIS MCMTS y aplicaciones estándar de delivery por Video.

Igual a los edge QAM tradicionales, el RFGW10 recibe tráfico DOCSIS/Video vía interface Ethernet y convierte la señal digital DMPT/MPEG al MPEG analógico y realiza el streamer de la señal a los suscriptores.

RFGW-10 es un modulador de borde que agrega múltiples fuentes de señal DADOS/VIDEO, procesándolas en una señal digital MPEG que va a ser distribuida a través de modulación QAM hasta los usuarios finales (cable modems y set-top boxes).

Provee soporte a varios estándares de video broadcast (Standard and High Definition Digital Broadcast Television, Switched Digital Video (SDV), Video on Demand

(VoD), y DOCSIS/Modular CMTS services). Las versiones iniciales del Cisco RFGW-10 fueron equipos de downstream. (downstream del Cisco RFGW-10 para el cable modem o set-top box).

El RFGW-10 fue diseñado basado en la plataforma de switch Cisco Catalyst (CAT4K).


RFGW-10 Características Generales 13RU Carrier Class Chassis

• 9” Rack-mount • 4536 watt potencia• Fluxo de Ar Front to Rear (frente-trás)• Switch de RF Integrado• Cabeamento único (Wire Once) conectores tipo Coaxial • Painel Frontal LCD• perfomance do sistema > 100Gbps

Arquitectura Redundante• Todos os módulos principais redundantes (Supervisor, Line Card, Power Supply)• Switch RF integrado (Dual Zone Integrated RF Data Path)• tempo de comutação 500ms (Line Card failover)• suporte a alta disponibilidade SW e HW • Redundancia de portas GE / 10GE• DOCSIS Timing Interface (DTI) Redundante• Sistema dimensionado para operar com apenas uma fonte (Power Supply)

Componentes principales• (2) Supervisor Card Slots (1:1 Redundante)• (2) Timing, Communication, and Control (TCC)/DTI Card Slots (1:1 Redundante)• (10) Universal Line Card Slots (N:1 Redundante)• (12) RF Switch Card Slots (Dual Zone Redundancia)• (2) DC PEM Module Slots (1:1 Redundante)• (1) Fan Tray Module


RFGW Arquitectura

CPU8347

Clks

DTI

Midplane

TieFPGA

Control Path

MPC8540

Punt Path K2 GE Switch

Chipset

Backhauls

TieFPGA

Control Path

MPC8540

Punt Path K2 GE Switch

Chipset

BackhaulsSupervisor Card Supervisor Card

LegendTiming Plane

Data PlaneRF Data (Analog)Control PlaneInter-Board ConnectionsPunt Path

CPU8548

SardineUPX

Yellowfin

Cobia

DiscusFPGA

CPU8548

SardineUPX

Yellowfin

Cobia

DiscusFPGA

RF Switch Matrix

Coax Ports

FPGA

CPU8347

Clks

DTI

FPGA

Analog RF

Analog RFAnalog RF

DS-48 LCDS-48 LCDTI CardDTI Card

DTI Server DTI Server


Ciclo de vida de los paquetes: Vista Data Plane

DOCSIS

Video

MCP8548 Cobia FPGA Yellowfin FPGA Great White UPX

X 1 GE

X 10 GE

Supervisor 8b/10bserdes

DOCSIS Timing

q Terminates serdes data path

q Extracts DEPI Header info

q Generates PKT processing CMD for Cobia

q Parses CMD pakets

q Fetches data from DDR-2 memory

q Moves MPEG packet to YF

q FECq J.83q DTI Re-Stamping

of Timestamp

q QAM Modulationq Upconvertionq RF Output

Amplifer

q Receives DEPI data (front panel 10xGE)

q Forwards traffic to LC based on IP Address and UDP Range

q Terminates Video data path

q Classifies Video Packets

q Generates CMD packets to Cobia

q Handoff of Video pkts from SW to HW

q Inter QAM channel flow scheduling

q PID remappingq PCR restampingq CC restampingq J.83q FEC

q QAM Modulationq Upconvertionq RF Output

Amplifer

q Receives DEPI data (front panel 10xGE)

q Forwards video traffic to uTSEC based on IP Addr and UDP range


Chassis - Vista Frontal

RF LC SLOTS

LCD Module

FAN Intake Module

SupervisorSlots

13RU, Front to backairflow

12 Front-side verticalslots

(2) CAT4K compatibleSupervisor Enginesslots (redundant)

(10) Native, RF Linecard slots

Air Intake Plenumlocated on bottomfront.

Air Exhaust Plenumlocated on Top

Front Panel LCD andPush Button assemblybuilt into Air ExhaustPlenum

RF LC SLOTS

LCD Module

FAN Intake Module

SupervisorSlots

13RU, Front to backairflow

12 Front-side verticalslots

(2) CAT4K compatibleSupervisor Enginesslots (redundant)

(10) Native, RF Linecard slots

Air Intake Plenumlocated on bottomfront.

Air Exhaust Plenumlocated on Top

Front Panel LCD andPush Button assemblybuilt into Air ExhaustPlenum


Chassis - Vista Posterior

FAN EXHAUST

TCCSLOTS

RF SWITCH/HFC Coax Connectors

PowerSupplyBay

PowerSupplyBay

Rear side slots that for redundantTiming/Utility (TCC+) line cards.

12 back-side horizontal slots forpassive RF switch and I/O cards

120 bi-directional RF ports

Rear side power supply bayssupporting (2) power supplymodules in a 1+1 redundantconfiguration.

DC Facility terminal block locatedon chassis

Fan / Exhaust module located ontop rear of chassis

FAN EXHAUST

TCCSLOTS

RF SWITCH/HFC Coax Connectors

PowerSupplyBay

PowerSupplyBay

Rear side slots that for redundantTiming/Utility (TCC+) line cards.

12 back-side horizontal slots forpassive RF switch and I/O cards

120 bi-directional RF ports

Rear side power supply bayssupporting (2) power supplymodules in a 1+1 redundantconfiguration.

DC Facility terminal block locatedon chassis

Fan / Exhaust module located ontop rear of chassis


Vista General - Chassis System SlotS

UP

ER

VIS

OR

Slot

1

SU

PE

RV

ISO

RSl

ot 2

RF

LCSl

ot 3

RF

LCSl

ot 4

RF

LCSl

ot 5

RF

LCSl

ot 6

RF

LCSl

ot 7

RF

LCSl

ot 8

RF

LCSl

ot 9

RF

LCSl

ot 1

0R

F LC

Slot

11

RF

LCSl

ot 1

2

System Air Inlet

PS Air Inlet

Exit Air PlenumLCD Exit Air Plenum

TCC

0Sl

ot 1

3

TCC

1Sl

ot 1

4

RF SW 1RF SW 2RF SW 3RF SW 4RF SW 5RF SW 6RF SW 7RF SW 8RF SW 9RF SW 10RF SW 11RF SW 12

Power Supply 1 Power Supply 2

rfgw-10 (rf gateway) visión general

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