Reference Data for Engineers, 9th Edition

39 Switching Networks and Traffic Concepts

Revised byAmos E. Joel, Jr.

Part 1: Coordinate Switching Networks

Definitions of Terms

Space- and Time-Division Switching

Properties of Coordinate Switching Networks

Single-Stage Coordinate Switches

Blocking and Nonblocking Networks

Nonblocking 3-Stage Networks

Networks With Internal Blocking

Time-Division Switching

Part 2: Traffic Concepts

Definitions of Terms

Traffic Measures

Traffic Quantity

Traffic Intensity

Call Intensity

Traffic Equations and Tables

Grade of Service

Choice of Formula

Traffic Equations

Delays

PART 1; COORDINATE SWITCHING NETWORKS

DEFINITIONS OF TERMS

Concentration: The function associated with a switching network having fewer outlet than inlet terminals.

Coordinate switch: ...