In conclusion, the document discusses how telecommunication has significantly impacted modern society through increased social and economic interactions
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All about amateur radio operating Procedures. This relates to Section 29 of the NZART Radio Syllabus and may be used to teach this section of the exam.
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Wireless Mobile Networks--> Wireless Body Area and Wireless Personal Area Net...YOGEESH M
WBAN consist of s set of mobile compact interconnecting sensors.
Monitors vital body parameters and movements.
Transmit data from human body to home base station.
Maximum signal range 2m.
Can offer 2 advantages;
Mobility and
Location independent monitoring.
Wireless Mobile Networks--> Wireless Body Area and Wireless Personal Area Net...YOGEESH M
WBAN consist of s set of mobile compact interconnecting sensors.
Monitors vital body parameters and movements.
Transmit data from human body to home base station.
Maximum signal range 2m.
Can offer 2 advantages;
Mobility and
Location independent monitoring.
Field of telecommunications has evolved from crudest form of communications to electrical, radio and electro-optical communications. From manual exchange like local battery, central battery exchange, to crossbar switching, director system and to common control systems, telephone communications had started evolving to cater to better and better specifications and needs. Touch tone dial telephone opened a new horizon in the field of end to end signalling. Then came computerised stored program control systems, various multiplexing techniques. With increase in traffic there was a need to study traffic and blocking capabilities....
BSNL Internship presentation for Electrical and ElectronicsGhufran Ahmed
Inplant Internship or Training in BSNL basically for Electrical and Electronics branch. It includes four major parts. Media Room, Power Plant, Telephone Exchange and Broad Band.
History, Basic concepts of wireless communication, challenges in wireless communication, cellular communication, performance criteria, wireless communication standars, how call is made?
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
1. Bharat Heavy Electricals limited
TRAINING SUMMARY
ON
TELECOMMUNICATION SYSTEMS
Submitted To : Submitted By:
Mrs.Ashita Vermani Mr. AWIK
ET-J, IV Yr
2. THE ORGANISATION:-B.H.E.L
• Bharat Heavy Electricals Limited
• Established more than 50 years
ago
• Today it ranks among the leading
power Equipment Manufacturers in
the world
• Largest engineering and
Manufacturing enterprise in India
3. • Various energy-related and infrastructure sector
include Power, Railways, Telecom, Transmission and
Distribution, Oil and Gas sectors and many more with
global credentials.
• More than 65% of the installed capacity for electrical
power in India is contributed by BHEL.
• 14 manufacturing divisions, 8 service centers, 4
power sector regional centers, 18 regional offices
and over 150 sites spread all over India & abroad.
4. TELECOMMUNICATION
• Telecommunication is the assisted
transmission over a distance for the purpose
of communication
• It involves the use of electronic devices such
as telephone, television, radio or computer
6. TELEPHONE EXCHANGE
• Often called Telephone Switch
• First telephone exchange was installed in 1878
• The first switching technology implemented was
MANUAL SWITCHING which required an OPERATOR
• AUTOMATIC SWITCHING was introduced in 1891 and
is of two types:-
1. ELECTROMECHANICAL
2. ELECTRONIC
7. 1. Electromechanical switching involved –
STEPPING SWITCH called as the STROWGER SWITHING
SYSTEM
• It made use of a four number sequence to connect the
call to a neighborhood
• Later on, area codes were created.
2. Electronic switching system
• Stored Program Control
• Made use of computers as central control
• High speed of operation
9. • Outside the Exchange:
• The voltage supplied in Indian Subcontinent is 220-volts/50 Hz. A.C.
but for the normal working of the exchange 48(46-53) volts of D.C.
is required.
• Hence a Rectifier circuit, backed with battery array for power-failures,
is used.
• Inside the Exchange:
• Inside the telephone exchange various types of power supplies are
used for powering various modules (for example: - Line-cards,
Ringer).
.From M.D.F. a number of cables, based upon the requirement of
a place, are connected to cabinets. On the cabinets these cables are
divided into cables of 20 pairs. Now every 20 pair cable goes to the
distribution box (D.B.). At the D.B. this 20 pair cable is further
divided into two parts of 10 pairs each. These pairs are then
connected to the subscriber ports via jumpers.
10. TONES USED IN MODERN TELEPHONY
DIAL TONE
• Heard when handset is picked
• Indicates that exchange is ready to receive dialled
digits from subscriber
• Tone is a continuous burble sound of 400 Hz
modulated by 25Hz
BUSY TONE
• Heard when the called subscriber is engaged
• 400 Hz signal which is regularly interrupted at equal
intervals
• It is generally on for 0.75 sec and off for also 0.75
sec.
11. RINGING TONE
• Informs the calling subscriber that the called line is
being rung
• Has a double ring pattern
• Each ring is separated by 0.2 sec and each double
ring pattern by 2 sec
• Frequency is 133 or 400 Hz
NUMBER UNOBTAINABLE TONE
• Sent when the number dialed cannot be obtained
• Tone of 400 Hz
12. Frequencies used in Telephony
• High band tone (1216 Hz. to 1645 Hz.)
• Low band tone (701 Hz. to 936 Hz.)
1 to 5 fall in low band
6 to 9, 0 fall in high band
13. HOOK SWITCH
• Off-hook for a tip condition or to describe a
circuit that is in use (i.e., when a phone call is
in progress)
• On-hook for an idle circuit (i.e. no phone call is
in progress)
14. TYPES OF CONNECTION
1) With wires i.e. cables
2) Wireless Microwave Links through
Satellite
CABLES
1. Underground cables:
These types of cables run under the
earth
2. Overhead cables
15. FAULTS IN AN EXCHANGE
1. Faults that occur from Line
• Break fault
Disconnection faults
"Telephone is dead".
• Loop fault
Line-Shorting faults
connectors are shorted
• Earth fault:
Wetting of connectors
Connectors can either touch from earth, with other connector or
with any conductor (such as metallic table, frame etc.)
2 . Faults that occur due to instrument
Dial tone breaks after two or three rings.
Instrument circuitry faulty.
16. FACILITY OF TELEPHONE
• CONFERENCE-3 PARTY
• LAST CALLER CALLBACK: 851
• APPOINTMENT REMINDER:852 then dial the time
• LAST NO. REDIAL: 854
• CALL PICK UP: 89-xxxx to pick up a call ringing at
another location xxxx.
• CALL TRANSFER: 2 Parties conversing, any party can
dial 3rd party, then Conversation among them Hang-up.
The party on line now Talks to 3rd party
17. CONCLUSION
• Telecommunication has a significant social,
cultural and economic impact on modern
society.
• Telecommunication is playing an increasingly
important role in social relationships.
• Now-a-days Electronic Exchanges are used.
• Developments have provided opportunities to
go far beyond the vision of telephony on
which this industry was built.