Overview
This is an overview of the use of telecommunications and the various protocols used in telecommunication today. It is an instructor led presentation course.
Prerequisites
This is a foundation level course, ideal for anybody with an interest in Tele Communications, as such no special prerequisites are necessary other than the desire to learn!
Delegates will
- Gain an understanding of the history and development of Telecommunications
- Learn about the standards and developments
- Learn how Analogue is converted to Digital and the benefits this brings
- Gain an understanding of techniques used by Telecomm providers
Course Outline
Chapter 1 – The Roots of Telecommunications
- 1876 to the present
- Standards organisations
Chapter 2 – The Telecoms Network
- The PSTN
- The Access Network/ Local Loop
- The Core Network
- The Data Network
Chapter 3 – Telephony Networks
- Basic telephone circuit
- Signalling
- Loop Disconnect/DTMF
- SF/MF, E&M
- Analogue Speech signals
- Analogue transmission
- Bandwidth, baseband, modulation
- Frequency/Time Multiplexing
- Why digital?
- Digitalization methods
- Pulse Code Modulation
- A law and mu law companding
- Adaptive Differential PCM
- Analogue/digital voice comparison
- Transmission media
- Copper wire pairs
- Fibre
- Wireless Local Loop
- Coax cable
- Telephone Numbering (E.164)
- Switching in telephony networks
- Routing and signalling
- Information transfer
- Simple call set-up
- Signal concepts and representation
- Telecoms billing systems
- Telecoms network management
- Service implementation
- Services for revenue generation
- Intelligent Networks (INs)
Chapter 4 – Digital Voice Transmission and Multiplexing Technologies
- Digital transmission systems
- Reintroduction to multiplexing
- The 2Mbit/s Framed Interface
- Framing – G.704
- Channel Associated Signalling (CAS)
- The Plesiochronous Digital Hierarchy (PDH)
- Electrical characteristics – G.703 – HDB3
- Signalling protocols
- CAS and CCS
- DASS2
- DPNSS
- Q.931
- Q.SIG
- ITU-T Signalling System No. 7 (SS7)
- The Synchronous Digital Hierarchy (SDH)
- SDH Advantages
- SDH Standards
- SONET
- SDH and SONET bit rates
- SDH Multiplexing Hierarchy
- How does SDH Work?
- SDH Frame
- Terminal Multiplexers (TM)
- Add/Drop Multiplexers (ADM)
- Digital Cross Connect (DXC)
- The SDH Network Sections
- SDH Bus Structured System
- SDH – Single Ring
- SDH – Double Ring
- Layered, SDH Ring Network
- Optical fibre
- Dense Wavelength Division Multiplexing
Chapter 5 – Voice Telephone Systems
- The PABX
- Centrex
- Management systems
- Key telephone systems
- Voice response systems
- Voice messaging systems
- Computer Telephony Integration (CTI)
- Structured wiring systems
- Wire categories e.g. CAT 1-5 UTP
Chapter 6 – Integrated Services Digital Network
- What is ISDN ?
- Why ISDN?
- Terminology
- B & D Channels
- Interfaces T/S/R/NT1/NT2
- The digital telephone set
- Digital exchanges and switching
- Direct Dialling In
- ISDN applications
- Video teleconferencing
Chapter 7 – Asynchronous Transfer Mode
- Broadband ISDN
- Asynchronous Transfer Mode
- What is it?
- ATM Cells
- Why cell switching?
- What is it used for?
- ATM Principles
- VPI’s and VCI’s
- ATM QoS
- ATM Adaptation Layers
- ATM Header
- ATM Switching Principles
Chapter 8 – Broadband Technologies
- New local loop technology
- Asymmetric Digital Subscriber Loop
- ADSL Standards
- G.lite G.DMT
- How Does ADSL Work?
- Frequency Allocation
- Local Loop Restrictions
- The DSLAM
- BT IPStream Network Model
- Symetric Digital Subscriber Line
- Fibre to the node/curb/home
- Broadband cable modems
- Very High Bit Rate DSL
Chapter 9 – Next Generation Telephony Networks
- The Convergence Story
- Business Benefits and Issues
- Voice over IP: H323, SIP, Megaco
- IPTV and Video over IP
- IP Multicasting
- Triple Play Services
- IP Multimedia Subsystems
- ITU Focus Group (NGN)
- NGN – Simplified Network
- MuIti-Service Access Nodes
- MSAN Access
- Metro Node
- NGN – The Core
- IMS
- Introduction to MPLS
- MPLS Principles
- MPLS Label Stack
- Architecture – VPN Separation
- MPLS Forwarding Example
Chapter 10 – Wireless Communications
- Why mobile communications?
- Evolution of mobile systems
- Systems types
- Radio paging
- Radiotelephone (incl CB)
- Mobile telephone service
- Cellular radio service
- Dispatch radio
- Personal Communications (PCN)
- Mobile data systems
- GSM, GPRS, UMTS