The book presents the current standards of digital multiplexing, called synchronous digital hierarchy, including analog multiplexing technologies. It is aimed at telecommunication professionals who want to develop an understanding of digital multiplexing and synchronous digital hierarchy, in particular, and the functioning of practical telecommunication systems, in general. The text includes all relevant fundamentals and provides a handy reference for problem solving or defining operations and maintenance strategies. The author covers digital conversion and TDM principles, line coding and digital modulation, signal impairments, and synchronization, as well as emerging systems.

chapter 1|18 pages


chapter 2|22 pages

Advent of Digital Technology

chapter 4|32 pages

Line Coding and Digital Modulation

chapter 5|12 pages


chapter 7|40 pages


chapter 8|48 pages

Plesiochronous Digital Hierarchy

chapter 10|68 pages

Synchronous Digital Hierarchy

chapter 11|42 pages

Operations and Maintenance in SDH

chapter 12|40 pages

SDH Architecture and Protection Mechanism

chapter 13|16 pages

Data Over SDH

chapter 14|38 pages

Emerging Systems and the Future of SDH

chapter 16|30 pages

Introduction to Optical Transport Networks