CH5 E1-E2 EB-BBVSAT.ppttraining.bsnl.co.in/DIGITAL_LIBRARY_SOURCE/upgradation/E1... · 2019. 3. 15. · WELCOME • This is a presentation for the E1-E2 Enterprise Business for the

E1E1--E2 (EB)E2 (EB)

BroadbandBroadband--VSATVSAT

For internal circulation of BSNL only

BroadbandBroadband--VSATVSAT

WELCOME

• This is a presentation for the E1-E2 Enterprise Business

for the Topic: Broadband V-SAT.

• Eligibility: Those who have got the Upgradation to

from E1 to E2.

• This presentation is last updated on 28-3-2011.

• You can also visit the Digital library of BSNL to see this

topic.


AGENDA

• WHAT IS V-SAT

• WHY BROADBAND V-SAT

• COMPONENT OF V-SAT


• BROADBAND V-SAT ARCHITECTURE

• V-SAT SERVICES

• ARCHITECTURE FOR HIGH SPEED

BROADBAND ACCESS

WHAT IS V-SAT

• V-SAT stands for Very Small Aperture Terminal.

• V-SAT is a device also known as an “earth station”.

• It is used to send and receive wireless transmissions by

satellite.satellite.

• Millions of V-SATs are in use around the world to send

and receive two-way data, voice or video transmissions.


WHAT IS V-SAT

• It can be mounted on a roof, attached to a wall or placed

on the ground and is capable of both receiving and

sending satellite signals.

• V-SAT systems can be designed to serve both broadcast• V-SAT systems can be designed to serve both broadcast

and interactive applications whether data, voice or video

which are now being served by terrestrial lines.


WHY BROADBAND V-SAT

• V-SAT technology is a secure and reliable medium to

connect geographically dispersed locations.

• It offers a cost effective solution for users seeking an

independent communication network connecting to the independent communication network connecting to the

global network.

• It also provide powerful dependable private

communication solutions.


WHY BROADBAND V-SAT

• In a situation where other connectivity options are not

feasible, broadband V-SAT of BSNL offers value added

satellite based services.

• V-SAT offers broadband services similar to cable and

DSL services for the computer which provides highDSL services for the computer which provides high

performance two-way connectivity for Broadband access

as well as offers value added satellite based services

with an advantage to serve remote and inaccessible

areas of country.


WHY BROADBAND V-SAT

• It offers cost-effective solution for Corporate bodies,

Training Centers,Hospitals, Stock exchanges, Banks,

Technical institutions, Government,military etc.

• V-SAT broadband is another option for a high-speed• V-SAT broadband is another option for a high-speed

Internet Connection that is considered to be one of the

best technologies available today.

• It is capable of supporting- Broadband internet access,

VOIP, video conferencing, IP multicast,LAN,voice, Fax.


Why V-SAT Broadband networking?

“Suppose a Railway department needs to expand its

business by deploying 100 new reservation counter

within a week, can you imagine the time it will take to

wait for leased lines?wait for leased lines?

In such case, V-SAT Broadband connectivity is the

best Option.”


COMPONENTS OF V-SAT

VSAT Equipment is mainly consist of-

• ODU (Outdoor Unit)

• IDU ( Indoor Unit )• IDU ( Indoor Unit )


COMPONENTS OF V-SAT

Dish

LNB

SAT Tx

SAT RX

USB

Ethernet 10/100

ODU IDU

Dish

LNB

SAT Tx

SAT RX

USB

Ethernet 10/100

ODU IDU


LNB

BUCFeed

horn

Ethernet 10/100

BaseT (RJ-45)

Telephone Jack for VoIP (RJ-11)

100-240 VAC (Optional -48V DC)

LNB

BUCFeed

horn

Ethernet 10/100

BaseT (RJ-45)

Telephone Jack for VoIP (RJ-11)

100-240 VAC (Optional -48V DC)

Outdoor Unit(ODU)

• Transmit / Receive Dish (Antenna) (0.75m - 1.8m)

• Block Up-converter (BUC) (1W- 2W)

• Low Noise Block-Down-converter (LNB)

• Feed Assembly


ODU

• BUC: - Block up-converter converts incoming I.F. (from

IDU) to R.F. transmitting frequency, amplifies it and

passes it to feed.

• LNB: - LNB amplifies incoming R.F.(Radio Frequency) • LNB: - LNB amplifies incoming R.F.(Radio Frequency)

from feed using low noise amplifier, converts it to I.F.

and passes it to IDU


INDOOR UNIT (IDU)

The indoor unit may be-

• a small desktop box ,or

• a network module integrated with a router providing

VSAT network connectivity.VSAT network connectivity.

It provide flexible Interfaces like Ethernet 10/100 Base T

(RJ45), USB with maximum download speed of up to 4

Mbps and maximum upload speed of up to 2 Mbps


INDOOR UNIT (IDU)

• On receive side-IDU converts I.F. (Intermediate Frequency) from ODU to base band signals which may be data, video or voice.

• On transmit side-IDU converts base band signals to I.F. and passes them to ODU.

I.F. is generally in L band. R.F. can be in C, Ku or Ka bands.


V-SAT NETWORK

• V-SAT are customer based and support mainly digital

networks.

• Entire network can be controlled from a single hub.

• The network can be operated from the hub.• The network can be operated from the hub.

• The hub also takes care of billing etc.


V-SAT NETWORK

• V-SAT application started with receive only terminals for

receiving TV broadcast signals in C band.

• Small dishes measuring 1.5m to 3m are being widely

used for receive only applications for TV broadcast for used for receive only applications for TV broadcast for

DTH services.


NETWORK TOPOLOGY

V-SAT networks can be arranged in following

configurations-

• POINT TO POINT NETWORK

• STAR NETWORK• STAR NETWORK

• MESH NETWORK

The preferred arrangement depends on the kind of

information flow the network will service.


POINT TO POINT NETWORK

It allows two-way communications

between two V-SAT sites.


STAR NETWORK

• It allows any number of V-SAT sites to have two-way

communication with a central hub.


MESH NETWORK

It allows two-way communications between any V-SAT

sites in a network.

1.A central hub is not necessary.

2.Each site communicates to another site with a single2.Each site communicates to another site with a single

satellite hop


Broadband V-SAT ARCHITECTURE

• V-SAT Broadband networks of BSNL is designed in a

hub and spoke fashion with customer locations

connecting directly over the air to a central “hub” facility.

• The equipment at a customer end is a V-SAT • The equipment at a customer end is a V-SAT

receiver/router (similar to a DSL or cable modem),

attached to a small dish mounted on top or outside the

building.



• At the hub, a large dish and complicated hub RF

components receive and transmit signals to the remote

sites.

• Hub routes information to and from the internet or private • Hub routes information to and from the internet or private

networks via leased line.



• Internet router is connected to BSNL National Internet

Backbone(NIB) using multiple 2 Mbps leased line.

• All remote V-SAT locations are having private IP so that

remote V-SAT users can connect to Internet.remote V-SAT users can connect to Internet.



SatelliteSatelliteSatelliteSatellite

HUB

VoIP

MLLNKu Band BSNL

Gateway,

Bangalore

VSAT

INTERNET

MPLS

IDU

IDU

HUB ATA

ATA- Analog Telephone Adapter

HUB HUB

VoIPVoIP

MLLNKu Band BSNL

Gateway,

Bangalore

VSAT

INTERNET

MPLS

IDU

IDU

HUB ATA


Ku Band

HUB/Gateway

HUB

VoIP

MLLNKu Band BSNL

Gateway,

Bangalore

VSAT

INTERNET

MPLS

IDU

IDU

HUB ATA


HUB HUB

VoIPVoIP

MLLNKu Band BSNL

Gateway,

Bangalore

VSAT

INTERNET

MPLS

IDU

IDU

HUB ATA


Ku Band

HUB/Gateway



• MLLN customers will connect directly to this routers

using lease line and they will be able to access the

VSAT remote terminals. Customers may take 64 kbps or

multiple of it for their main office connectivity.multiple of it for their main office connectivity.

• MPLS: It will be connected to BSNL MPLS cloud using

multiple 2 MBPS lease lines. MPLS router will work as

CE routers for the MPLS cloud.


VSAT HUB

BSNL’s Ku Band HUB (Earth Station) at

BANGALORE consists of

1. Satellite antenna of 8.1 m – Cassegrain feed type.

2 .Ku Band RF equipment and its control systems


3.GATEWAY Networking Equipment with interfaces

to Terrestrial Networks like MLLN,MPLS and NIB.

V-SAT SERVICES

• High speed Broadband Internet

• Leased lines through V-SAT

• VPN Networking

• VOIP Telephony• VOIP Telephony


V-SAT SERVICES

• Facsimile

• Telemedicine

• E-learning

• IP multicasting• IP multicasting


V-SAT SERVICES

• Video conferencing

• Video streaming

• Distance Education

• Banking


High Speed Broadband Architecture

• V-SAT are capable to provide similar broadband and

high speed Internet available on terrestrial lines.

• Download speed is of up to 4 Mbps and maximum

upload speed of up to 2 Mbps. upload speed of up to 2 Mbps.

• It delivers bandwidth on demand allowing efficient use of

bandwidth making it ideal for broadband access to

Small and Medium Enterprises, Internet Cafes,

apartments and individual users.



• It allows dedicated or shared bandwidth to match the

user’s requirement.

• It fully supports standard Internet connection and any IP

applications.

• VSAT broadband offers top of the line VPN encryption

for the security of your personal information and data.



SatelliteSatelliteSatelliteSatellite


Ku Band BSNL

Gateway,

Bangalore

HOME

INTERNET

User Terminal

User Terminal

User Terminal

Internet Cafes

Ku Band BSNL

Gateway,

Bangalore

HOME

INTERNET

User Terminal

User Terminal

User Terminal

Internet Cafes

Ku Band

HUB Station

Ku Band BSNL

Gateway,

Bangalore

HOME

INTERNET

User Terminal

User Terminal

User Terminal

Internet Cafes

Ku Band BSNL

Gateway,

Bangalore

HOME

INTERNET

User Terminal

User Terminal

User Terminal

Internet Cafes

Ku Band

HUB Station


• They also offer full services for things like web hosting,

net meeting, etc. A public IP address is assigned to both

the VSAT network module and the router satellite

interface. Network Address Translation (NAT) is interface. Network Address Translation (NAT) is

implemented on the Ethernet interface of the router, so

that multiple clients can be connected and use the

service.


Benefits

• The main benefits of the V-SAT network is very fast

deployment and their independence from the traditional

terrestrial communication networks.

• V-SAT network can be configured to very high reliability.• V-SAT network can be configured to very high reliability.

• V-SAT allow unmanned operation and minimal

maintenance.


Benefits

• The reliability and the quality of V-SAT are superior to

the terrestrial systems.

• V-SAT networks enable the user to have advanced

digital services in places where the terrestrial digital services in places where the terrestrial

infrastructure is not sufficiently developed.


Benefits

• V-SAT can be used to give immediate service to

locations that can not afford to wait for long times.

• V-SAT can be deployed very quickly for emergencies

such as natural calamities etc.such as natural calamities etc.


Broadband V-SAT


Documents

CH5 E1-E2 EB-BBVSAT.ppttraining.bsnl.co.in/DIGITAL_LIBRARY_SOURCE/upgradation/E1... · 2019. 3. 15. · WELCOME • This is a presentation for the E1-E2 Enterprise Business for the