- Copper networks have limitations such as being costly, fault-prone, difficult to maintain, and having limited bandwidth. Optical fiber cables address these issues with advantages like unlimited bandwidth, low loss, electromagnetic immunity, small size, and greater safety.
- Optical fiber cable is a guided medium that transmits information in the form of light through glass or plastic fibers. It is used in telecom networks, undersea cables, and other applications requiring high bandwidth or immunity to electromagnetic interference.
- Synchronous Digital Hierarchy (SDH) was developed to overcome disadvantages of Plesiochronous Digital Hierarchy (PDH) networks like limited bandwidth and lack of common standards. SDH allows direct access to lower
Techies (An ISO 9001:2008 Certified Company) is promoted by team of highly talented professionals who have combined I.T. and Corporate Experience. Techie's Institute is the Best Institute in Amritsar for Six Months Industrial Training & Six Weeks Industrial Training in Amritsar
Website: www.iamtechie.com
Email: enquiry@iamtechie.com
GSM is the globel system of organation . It consists of
M.S,BSC MSC ,OMC,FIXED Phone.Mobile station is carried by
the subscriber.and base station subsystem control the radio
link with mobile station . The main part of system is
mobile switching center perform switching of calls between
the mobile and fixed or mobile network use. and operational
and maintainence center oversees the proper operation and
set up of the network. The MS and BSC communicate across
the um link or air interface and BSC&MSC communicate across
A interface.
Techies (An ISO 9001:2008 Certified Company) is promoted by team of highly talented professionals who have combined I.T. and Corporate Experience. Techie's Institute is the Best Institute in Amritsar for Six Months Industrial Training & Six Weeks Industrial Training in Amritsar
Website: www.iamtechie.com
Email: enquiry@iamtechie.com
GSM is the globel system of organation . It consists of
M.S,BSC MSC ,OMC,FIXED Phone.Mobile station is carried by
the subscriber.and base station subsystem control the radio
link with mobile station . The main part of system is
mobile switching center perform switching of calls between
the mobile and fixed or mobile network use. and operational
and maintainence center oversees the proper operation and
set up of the network. The MS and BSC communicate across
the um link or air interface and BSC&MSC communicate across
A interface.
Visible light communication (vlc) systemsCKSunith1
The attached narrated power point presentation attempts to explain the working principle, block diagram, layer model, standards, advantages, disadvantages and modulation schemes as applicable to Visible Light Communication Systems (VLC). The material will be useful for KTU final year B Tech students who prepare for the subject EC 405, Optical Communications.
Here you are an interesting explanation about HSPA Technology. The High Speed packet Access is the combination of two technologies, one of the downlink and the other for the uplink that can be built onto the existing 3G UMTS or W-CDMA technology to provide increased data transfer speeds.
The original 3G UMTS / W-CDMA standard provided a maximum download speed of 384 kbps.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
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.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
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.
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.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
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.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Top 10 Oil and Gas Projects in Saudi Arabia 2024.pdf
Transmission
1. Limitations of Copper
network
Copper is costlier and scarce material.
Fault prone.
Maintenance difficult
Vulnerable for EMI.
Limited bandwidth
LR restricts route length
Congestion during Expn
2. Advantages of OF Cable.
• Unlimited bandwidth
• Low Loss - 0.5db per km
• Less number of Repeaters
• Electro Magnetic Immunity
• Small size & Light Weight - Easy to
handle
• Greater Safety - No Electric Hazards
• Higher Security
3. Type of OF Cable.
• Single Mode Fibre
• Multi Mode Fibre
• Plastic Optic Fibre
4. Introduction of OFC.
OF Cable is a guided medium, in
which information (voice, data or video)
is transmitted through a glass or plastic
fibre, in the form of light from one end to
other end.
6. Application of Cable.
• Telecom network
• CP Commn. Network
• Under sea
• High EMI area
• Explosive env. area
• High lightening area
• Military applications
7. PDH
Plesiochronous Digital Hierarchy.
Support large amount of data to transport .
The term “PLESIOCHRONOUS” is derived from
Greek plesio which means near, and chronous, time.
It means, networks works in different state but not
perfectly within network.
Transmission and reception are synchronized but
timing is not
The channel clocks derived from diff master clock
and range is within limit . It called
“PLESIOCHRONOUS” SIGNAL.
PDH signal are neither SYNCHRONOUS nor
ASYNCHRONOUS.
8. VERSIONS OF PDH
There are two version in PDH
namely
THE EUROPEAN AND
THE AMERICAN.
They are different Bit rates and
same
EUROPEAN PCM = 30 CHANNELS
NORTH AMERICAN PCM = 24
CHANNELS
9. EUROPEAN DIGITAL HIERARCHY
It uses the TDM technology.
1. 30 Channel PCM = 2 Mbps
2. 2 Mbps x 4 = 8 Mbps
3. 8 Mbps x 4 = 34 Mbps
4. 34 Mbps x 4 = 140 Mbps
5. 140 Mbps x 4 = 565 Mbps
10. EUROPEAN PDH HIERARCHY WITH BIT RATES
MUX BIT RATE PARTS PER
MILLION
CHANNELS
2 Mbps 2.048 Mbps +/- 50 ppm 30
8 Mbps 8.448 Mbps +/- 30 ppm 120
34 Mbps 34.368 Mbps +/- 20 ppm 480
140 Mbps 139.264 Mbps +/- 15 ppm 1920
11. MULTIPLEXING TECHNIQUE
Digital data from multiple streams
are combined called Multiplexing .
Taking one bit from each stream
and followed by other one .
Multiplexer also adds some
additional bits to enable the
reliable.
The additional bit called
“JUSTIFICATION “OR “STUFFING”
bits.
12. 30 Chl Digital Hierarchy
III Order
Mux
480 Chls
IV Order
Mux
1920 Chls
Primary
Mux
30 Chls
II order
Mux
120 Chls
X 4 X 4
2.048 Mbps 8.448 Mbps 34.368 Mbps 139.264 Mbps
X 4
13. FOTS
• FIBRE OPTIC TRANSMISSION SYSTEM.
• It has the following sub system
– DIGITAL MULTIPLEX SUB SYSTEM.
– OPTICAL LINE TRANSMISSION SUB SYSTEM.
– CENTRAL SUPERVISORY SUB SYSTEM
– POWER SUB SYSTEM
– ALARM SUB SYSTEM
14. DISADVANTAGES OF PDH SYSTEM
Bandwidth is limited
To access LO tributary involves
whole process.
No common standard between
vendors.
Only Point to Point configuration.
No provision for NMS
15. WHAT IS SDH?
SDH is hierarchical set of information
structure to carry the pay load .
SDH MULTIPLEXING:- A procedure to
adopt multiple LO path layer signals Mux
section layer.
POINTER:- Defines frame offset value of
a virtual container.
SDH MAPPING:- The procedure by which
tributary are adopted in to VC at the
boundary of PDH network.
16. ADVANTAGES OF SDH
1. SIMPLIFIED MULTIPLEXING/DEMULTIPLEXING
TECHNIQUES.
2. DIRECT ACCESS TO LOWER ORDER TRIBUTARIES.
3. ACCOMMODATES EXISTING PDH SIGNALS.
4. CAPABLE OF TRANSPORTING BROADBAND SIGNALS.
5. MULTI-VENDOR, MULTI OPERATOR ENVIRONMENT.
6. PROTECTION SWITCHING TO TRAFFIC IS OFFERED BY
RINGS.
7. ENHANCED BANDWIDTH.
8. NMS FACILITY.
9. UNLIMITED BANDWIDTH
10. GROWTH OF THE EXISTING TO THE HIGHER ORDER
SYSTEM IS SIMPLE.
17. SDH BIT RATES
SDH Levels Bit rates in Kbps
STM-1 155520
STM-4 622080
STM-16
STM-64
2488320
9953.28
18. SDH NETWORK ELEMENTS
• The different network elements are
SYNCHRONOUS MULTIPLEXER
SYNCHRONOUS DIGITAL CROSS
CONNECT
REGENERATOR
NMS