Telecommunication and networking at BSNL jhansi

1. STUDY OF TECHNOLGIES
IN COMMUNICATION &
NETWORKING
AT
BSNL ,JHANSI
NAME

2. CONTENTS
About BSNL
Telephone Exchange
GSM
GPRS
3G
INTERNET

3. ABOUT BSNL
 BSNL was founded on 1st oct. 2000.
 Before the foundation of BSNL all the
telecom related work was handled by
Department of Telecommunication (DOT.)
 It is providing the services in all over India
Except Delhi & Mumbai.

4. TELECOM STRUCTURE
India is divided into 22 telecom
circles.
Each circle is further divided into
divisions.
 Each circle is controlled by CGMT .

5. BSNL SERVICES
 Landline
 Broadband (such as Dial up Internet,
Landline ,Mobile & Fiber Broadband )
 Mobile Services (GSM/2G ,3G )
 Enterprises Services (WI-MAX ,
Lease line)

6. EXCHANGE
SWITCH
SUBSCRI
-BER
LINE
JACK
UNIT
DP
CABINET
/PILLARS
MDF

7. GSM
It is a Second Generation (2G)
mobile phone system.
It uses both FDMA & TDMA
technique.
2G GSM networks operate in 900
MHz or 1800 MHz bands.

8. GSM ARCHITECTURE
MSCBSCBTS
TRX
EIR
HLR
VLR
OMC
AuC
PSTN
MS
MS
MS
Cellular
Antenna

9. GPRS
 General packet radio service (GPRS)
is a packet oriented mobile data service
for 2G cellular communication system.
 it provides data rate of 54-114 Kbps.
 It provides the services like Internet
access & MMS.

10. 3G
 It is 3rd generation network to provide
the high data speed.
 3G system consist of two main
standards,CDMA2000 & W-CDMA.
 It provides minimum data rate of
2 Mbps for stationary or walking users
and 384 Kbps for moving vehicle.

11. INTERNET
 Internet is a group of various co-
operating computers ,inter connected
worldwide by computer based on
TCP/IP communication protocols.

12. OSI NETWORKING MODEL
 The open system interconnection
model defines all the methods and
protocols needed to connect one
computer to any other over a
network.
 It consist of seven layers.

13. OSI MODEL LAYERS
Data link
Network
Transport
Session
Application
Presentation
Physical
Data generation
Encryption & Formatting
Establish connection
Delivery & Sequencing
Routing to destination
Local network host delivery
Access to media

14. THANK YOU