O'Reilly logo

Computer Busses by William Buchanan

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

G

ISDN

G.1 Introduction

A major problem in data communications and networks is the integration of real-time sampled data with non-real-time (normal) computer data. Sampled data tends to create a constant traffic flow whereas computer-type data has bursts of traffic. In addition, sampled data normally needs to be delivered at a given time but computer-type data needs a reliable path where delays are relatively unimportant.

The basic rate for real-time data is speech. It is normally sampled at a rate of 8 kHz and each sample is coded with eight bits. This leads to a transmission bit rate of 64 kbps. ISDN uses this transmission rate for its base transmission rate. Computer-type data can then be transmitted using this rate or can be split to transmit ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required