Documents Plc 1

Programmable Logic Controller (PLC) Third Year-Mechatronics Eng. Lecturer Mr. Amer Al-Mesaody 1- Introduction to PLC: Definitions and characteristic functions of a PLC 2-…

Documents Telephony

TABLE OF CONTENTS I. Telephony II. Switching System III. Subscribers¶ Loop IV. Decibels and Noise Limits V. Telephone Traffic VI. Numbering Concepts VII.Signaling VIII.Multiplexing…