sistem telekomunikasi modul 6.3

Fiber Access Network• Untuk memenuhi kebutuhan bandwidth yang terus

meningkat untuk berbagai layanan bagi pelanggan diperlukan penyediaan “new high-bandwidth access services”.

• Optical fiber access menyediakan bandwidth sampai beberapa gigabits per second (Gbps)—dan mungkin akan terus meningkat sejalan dengan kemajuan teknologi.

• Konfigurasi jaringan– All optical fiber access network

• Point to point (PTP) network• Passive/active optical network (PON/AON)

– FTTx• Struktur jaringan berdasarkan penentuan titik konversi sinyal

(perubahan dari optik ke twisted pair atau coaxial cable)

SM241013 - Pengantar Sistem Telekomunikasi Semester genap 2007-2008

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Point To Point Network


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Central Office / Head EndCentral Office / Head End

Passive/Active Optical Network


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PS/ASPS/AS PS/AS

PS/AS

PS = Passive SplitterPS = Passive Splitter

AS = Active SplitterAS = Active Splitter

Passive Optical Network (PON)


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• Does not contain any electronics between the central office/headend switch and the customer-premises equipment

• The entire down stream bandwidth is transmitted to the power splitter and delivered to each subscriber

• The customer-premises equipment contains optical transceivers that switch on and off during the allocated time slots and select their content; this prevents them from accessing content not intended for them

• Each splitter typically splits a fiber into 16, 32, or 64 fibers, depending on the manufacturer, and several splitters can be aggregated in a single cabinet

• Does not contain any electronics between the central office/headend switch and the customer-premises equipment

• The entire down stream bandwidth is transmitted to the power splitter and delivered to each subscriber

• The customer-premises equipment contains optical transceivers that switch on and off during the allocated time slots and select their content; this prevents them from accessing content not intended for them

• Each splitter typically splits a fiber into 16, 32, or 64 fibers, depending on the manufacturer, and several splitters can be aggregated in a single cabinet

Active Optical Network (AON)


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OLTOLT

• All subscriber content is transmitted to the aggregation switch and then distributed to the appropriate subscribers only

• At the switch, all content is converted from an optical signal to an electrical signal, separated from other content, and converted again to an optical signal and delivered appropriately over separate fibers to each destination

• Active networks have additional intelligence located closer to the subscriber that can reduce latency, flexibly add bandwidth, isolate faults, switch, schedule and queue traffic— and maximize bandwidth utilization between the switch aggregator and central office

• All subscriber content is transmitted to the aggregation switch and then distributed to the appropriate subscribers only

• At the switch, all content is converted from an optical signal to an electrical signal, separated from other content, and converted again to an optical signal and delivered appropriately over separate fibers to each destination

• Active networks have additional intelligence located closer to the subscriber that can reduce latency, flexibly add bandwidth, isolate faults, switch, schedule and queue traffic— and maximize bandwidth utilization between the switch aggregator and central office

SwitchSwitch

Fiber To The – x (FTTx)

• FTTx merupakan berbagai alternatif struktur jaringan berdasarkan letak titik konversi sinyal optik (TKO)

• Struktur jaringan– Fiber To The Building (FTTB)– Fiber To The Curb (FTTC)– Fiber To The Home (FTTH)


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Fiber To The Building (FTTB)

Central OfficeCentral Office

FeederFeeder

DistributionDistribution

Remote TerminalRemote Terminal

Aplikasi :• Pelanggan bisnis di gedung bertingkat• Pelanggan di apartemen

Aplikasi :• Pelanggan bisnis di gedung bertingkat• Pelanggan di apartemen

Optical Fiber Cable

Optical Fiber Cable

Existing Indoor Copper Cable

Existing Indoor Copper Cable

DistanceDistance

00 Up to 20 kmUp to 20 km


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Fiber To The Curb (FTTC)


FeederFeeder


Aplikasi :Pelanggan yang letaknya berkumpul di satu area terbatas

Aplikasi :Pelanggan yang letaknya berkumpul di satu area terbatas

Optical Fiber Cable

Optical Fiber Cable

DistanceDistance



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Drop home runDrop home run

Network Access Point

Network Access Point

Copper cableCopper cable

Fiber To The Home (FTTH)


FeederFeeder


Aplikasi :All optical fiber access network

Aplikasi :All optical fiber access network

Optical Fiber Cable

Optical Fiber Cable

DistanceDistance



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Network access point

Network access point


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Hybrid Fiber Coaxial (HFC)

• HFC adalah jaringan akses yang mengkombinasikan coaxial dan fiber optik

• Hybrid node : mengkonversi sinyal optik menjadi sinyal elektris untuk ditransmisikan ke user terminal melalui kabel coaxial

Hybrid Node

Hybrid Node

Coaxial cable

Coaxial cable

Optical Fibers


Konfigurasi HFC


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Optical fiber cable Coaxial cable

Core network

Access network

Power Line Communication (PLC)

• Powerline Communication (PLC), also known as Broadband Over Powerline (BPL) is a technique for sending high speed data through existing powerline as transmission medium.

• PLC creates a high speed data communications network using the medium and low voltage electric distribution grids which connects consumers to the Internet through any electric socket in the consumers home.

• Powerline is the worlds largest existing wired infrastructure.

PLC Technology


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PLC Applications

Broadband Services

• High Speed Internet Access • Voice Over IP • Video Streaming • Home Networking • Home Automation• Home Security Systems • Telemedicine Applications

Utility Applications

• Automatic Meter Reading • Internal Communications • Demand Side Management • Load monitoring • Security Monitoring


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sistem telekomunikasi modul 6.3

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