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INDUSTRIAL TRAINING PRESENTATION
CONTENT
Certificate
Introduction
Exchange
Exchange Layout
Main sections of exchange
MDF
Power plant
Switching room
GSM
GSM Architecture
Basic Building Blocks
Media
INTRODUCTION ABOUT ORGANISATION
Today, BSNL is the No. 1 telecommunication company and the largest public sector undertaking of India and its responsibilities includes improvement of the already impeccable quality of telecom services, expansion of telecom services in all villages and instilling confidence among its customers.
EXCHANGE
Equipment which effects interconnection of telephones is known as switching equipment.
The switching centre, which houses the terminating and switching equipment is called telephone exchange.
EXCHANGE LAYOUT
Typical exchange consist of :
Switch Room
Operations and Maintenance (OMC) Room
Input Output processor (IOP) Room
Power Plant Room
Battery Room
Main Distribution Frame (MDF) Room
MAIN SECTIONS OF EXCHANGE:
Main Distribution Frame (M.D.F) :INTRODUCTION: 
The main parts of the power room are:1. Batteries2. UPS (Uninterrupted Power Supply) 3. Charging - Discharging Unit 4. Inverter and Converter Unit
GSM : (SYSTEM ARCHITECHTURE)
This system structured hierarchically as shown:
It consist of one administrative region, which is assigned to a MSC(Mobile Switching Center).
Each administrative Region is made up of atleast one Location Area(LA). LA is also called the visited area.
An LA consists of several cell groups.
Each cell group is assigned to a base station controller(BSC).
Cells of one BSC may belong to different LA’s.