A public address (PA) system is for amplifying the sound from audio sources. Some examples of Audio sources are computer systems and microphones. Most buildings and retail stores will have a PA system installed. This is to enable the building management to convey paging information and emergency broadcasts.
To illustrate how to set up an IP based PA system, we have created an easy to follow infographic diagram. We hope this will help you to plan and execute an IP based PA system setup.