Aims to provide the reader with a fundamental understanding of the role, operation and utilization of communications devices and facilities. Basic transmission techniques are examined as well as the common applications and future directions of data communications.
Gives an orderly presentation of how GPRS works, how it connects the Internet, and how to implement it. This work includes: the complete layout of GPRS system architecture; the function of GPRS elements; various layers described, unpacked, and explained; and interfaces - radio and MS-PCUSN, MS-SGSN, PCUSN-SGSN, SGSN-GGSN, and GGSN-PDN.
An illustrated guide to the design and installation of security and fire alarm systems in residential, commercial and industrial buildings. It covers methods for equipment selection, system design, cost estimating and system installation.