http://iet.metastore.ingenta.com
1887

Circuit-switching systems and networks

Circuit-switching systems and networks

For access to this article, please select a purchase option:

Buy chapter PDF
£10.00
(plus tax if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend to library

You must fill out fields marked with: *

Librarian details
Name:*
Email:*
Your details
Name:*
Email:*
Department:*
Why are you recommending this title?
Select reason:
 
 
 
 
 
Understanding Telecommunications Networks, (2nd Edition) — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

In Chapter 5 we looked at how a Core Transmission Network carries a required capacity between two network nodes. But, how does a network operator determine what capacity is required to be carried? For example, are 90 circuits between Leicester and Coventry sufficient to ensure the expected volume of calls between these exchanges can be carried satisfactorily, or could the operator save money by providing just 60 circuits? Section 6.3 of this chapter considers how the size of traffic route between two exchanges is determined, and how the flow of traffic through a network of many exchanges is routed to give maximum utilisation of the capacity while achieving the appropriate level of resilience (at the switching level). Finally, we consider a simple example of how a network is dimensioned at the switching level, and how this impacts the dimensioning of the Core Transmission Network.

Chapter Contents:

  • 6.1 Introduction
  • 6.2 Circuit-switching systems
  • 6.2.1 Introduction
  • 6.2.2 Subscriber switching (local) units
  • 6.2.3 Digital telephone switching systems
  • 6.2.4 Private automatic branch exchanges
  • 6.2.5 Digital exchange structures
  • 6.2.6 Integrated services digital network exchanges
  • 6.2.7 Non-subscriber digital switching units
  • 6.3 Network dimensioning
  • 6.3.1 The concept of switched traffic
  • 6.3.2 Call distribution
  • 6.3.3 Traffic flow
  • 6.3.4 Traffic routeing
  • 6.3.5 Exchange capacity planning
  • 6.4 Summary
  • References

Inspec keywords: telecommunication traffic; telecommunication switching; circuit switching

Other keywords: core transmission network; telecommunication traffic; circuit-switching systems; circuit-switching networks

Subjects: Communication switching

Preview this chapter:
Zoom in
Zoomout

Circuit-switching systems and networks, Page 1 of 2

| /docserver/preview/fulltext/books/te/pbte071e/PBTE071E_ch6-1.gif /docserver/preview/fulltext/books/te/pbte071e/PBTE071E_ch6-2.gif

Related content

content/books/10.1049/pbte071e_ch6
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
This is a required field
Please enter a valid email address