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.
For internal circulation of BSNL only
AGENDA
• WHAT IS V-SAT
• WHY BROADBAND V-SAT
• COMPONENT OF V-SAT
For internal circulation of BSNL only
• 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.
For internal circulation of BSNL only
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.
For internal circulation of BSNL only
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.
For internal circulation of BSNL only
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.
For internal circulation of BSNL only
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.
For internal circulation of BSNL only
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.”
For internal circulation of BSNL only
COMPONENTS OF V-SAT
VSAT Equipment is mainly consist of-
• ODU (Outdoor Unit)
• IDU ( Indoor Unit )• IDU ( Indoor Unit )
For internal circulation of BSNL only
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
For internal circulation of BSNL only
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
For internal circulation of BSNL only
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
For internal circulation of BSNL only
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
For internal circulation of BSNL only
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.
For internal circulation of BSNL only
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.
For internal circulation of BSNL only
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.
For internal circulation of BSNL only
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.
For internal circulation of BSNL only
POINT TO POINT NETWORK
It allows two-way communications
between two V-SAT sites.
For internal circulation of BSNL only
STAR NETWORK
• It allows any number of V-SAT sites to have two-way
communication with a central hub.
For internal circulation of BSNL only
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
For internal circulation of BSNL only
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.
For internal circulation of BSNL only
Broadband V-SAT ARCHITECTURE
• 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.
For internal circulation of BSNL only
Broadband V-SAT ARCHITECTURE
• 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.
For internal circulation of BSNL only
Broadband V-SAT ARCHITECTURE
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
ATA- Analog Telephone Adapter
Ku Band
HUB/Gateway
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
ATA- Analog Telephone Adapter
Ku Band
HUB/Gateway
For internal circulation of BSNL only
Broadband V-SAT ARCHITECTURE
• 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.
For internal circulation of BSNL only
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
For internal circulation of BSNL only
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
For internal circulation of BSNL only
V-SAT SERVICES
• Facsimile
• Telemedicine
• E-learning
• IP multicasting• IP multicasting
For internal circulation of BSNL only
V-SAT SERVICES
• Video conferencing
• Video streaming
• Distance Education
• Banking
For internal circulation of BSNL only
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.
For internal circulation of BSNL only
High Speed Broadband Architecture
• 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.
For internal circulation of BSNL only
High Speed Broadband Architecture
SatelliteSatelliteSatelliteSatellite
For internal circulation of BSNL only
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
High Speed Broadband Architecture
• 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.
For internal circulation of BSNL only
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.
For internal circulation of BSNL only
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.
For internal circulation of BSNL only
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.
For internal circulation of BSNL only
Broadband V-SAT
For internal circulation of BSNL only